WO2014115661A1

WO2014115661A1 - Swaging device

Info

Publication number: WO2014115661A1
Application number: PCT/JP2014/050886
Authority: WO
Inventors: 貴志樋口; 史人梶谷; 英明櫻井; 窪田　隆博
Original assignee: 三菱重工業株式会社
Priority date: 2013-01-24
Filing date: 2014-01-20
Publication date: 2014-07-31
Also published as: JP2014140875A

Abstract

The purpose of the present invention is to provide a swaging device with which it is possible to easily know the working condition of the swaging device. The swaging device (7) is provided with: a main body (8) for supporting a joint (1); a ramming member (9), which is supported by the main body (8) and is for applying a force on the joint (1) along a first direction so that the joint (1) is swaged; and a use frequency-detecting mechanism (11) for detecting the number of times joints (1) have been swaged.

Description

Swage equipment

The present invention relates to a swage device.

¡A joint is used to connect two pipes. At the time of connection, the end of each pipe is inserted into the joint. After insertion, the joint is crimped (swaged). Thereby, two pipes are connected via a joint.

In connection with the joint, Patent Document 1 (Japanese Patent Publication No. 9-501224) discloses an attachment part that is attached to a pipe by swaging. This mounting part comprises a cylindrical sleeve. The sleeve has a tapered outer surface and an inner surface that receives the tube. As the swage ring engages the outer surface of the sleeve and the ring moves axially forward with respect to the sleeve, the ring applies a radial force against the sleeve and is swaged.

On the other hand, a swage device may be used when caulking the joint. In relation to the swage device, Patent Document 2 (Japanese Patent Laid-Open No. 2-182329) discloses a swaging tool. The swaging tool supports a first die, a second die that can move toward the first die, a head that holds the first die relative to the second die during swaging, and a second die. And a cylinder having means for moving the second die toward the first die.

Also, Patent Document 3 (Japanese Patent No. 2887589) discloses a swage tool. The swage tool includes a housing, a piston movable in an axial direction facing the housing, and a first engagement member fixed on the housing, and one of the ring and the sleeve moves in the axial direction. And a second coupling member coupled to the piston so as to move together with the piston when the piston moves in the axial direction relative to the housing. And a second engaging member that moves in the axial direction toward the first engaging member.

Furthermore, Patent Document 4 (Japanese Patent Publication No. 10-511897) discloses an axial swage tool having a stabilizing pin.

Japanese National Patent Publication No. 9-501224 Japanese Patent Laid-Open No. 2-182329 Japanese Patent No. 2,875,889 Japanese National Patent Publication No. 10-511897

¡If the swage device does not operate normally, the joint cannot be properly crimped. Therefore, the swage device is inspected as necessary. For example, the state of use of the internal mechanism of the swage device is confirmed by overhaul. For example, by using a measuring tool, the clearance between main parts, the operation of the swage device when pressure is applied, and the like are inspected. As a result of the inspection, the usage status (degradation level, etc.) of the swage device is determined, and some parts of the swage device are replaced as necessary.

However, in order to know the usage status of the swage device, an overhaul and a measuring tool are necessary. Accordingly, an object of the present invention is to provide a swage device that can easily know the usage status of the swage device.

The swage device according to the present invention includes a main body that supports a joint, a push member that is supported by the main body, and applies a force to the joint along a first direction so that the joint is crimped. A use frequency detection mechanism for detecting the inspection time of the main body.

According to the present invention, there is provided a swage device that can easily know the usage status of the swage device.

FIG. 1 is a schematic view showing a joint. FIG. 2 is a perspective view schematically showing the swage device. FIG. 3 is a schematic view showing an operation during caulking. FIG. 4 is a schematic cross-sectional view showing a sliding surface. FIG. 5 is a diagram illustrating a modification of the first embodiment. FIG. 6 is a diagram illustrating another modification of the first embodiment. FIG. 7 is a perspective view schematically showing a swage device according to the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
First, the joint 1 crimped by the swage device according to the present embodiment will be described.

FIG. 1 is a schematic view showing the joint 1. The joint 1 is used to connect the pipe 2-1 and the pipe 2-2. In the present embodiment, it is assumed that the pipe 2-1 and the pipe 2-2 are pipes arranged in the aircraft. However, the pipe 2 does not necessarily have to be for aircraft, and the present embodiment can be applied to other uses.

As shown in FIG. 1, the joint 1 includes a sleeve 3 (first member) and a pair of swage rings 4 (4-1, 4-2; second member).

The sleeve 3 is cylindrical. The end of each tube 2 is inserted into the sleeve 3. Tapered portions 6 (6-1, 6-2) are provided at both ends of the sleeve 3. In the taper portion 6, the outer diameter of the sleeve 3 is smaller toward the tip side. The sleeve 3 is provided with a pair of stoppers (5-1, 5-2). Each stopper 5 is provided to limit the movement of the swaging ring 4. Each stopper 5 is provided at a proximal end portion of each tapered portion 6.

The pair of swage rings 4 are arranged at both ends of the sleeve 3. Each swaging ring 4 is annular and is arranged so as to be coaxial with the sleeve 3. Each swage ring 4 has an end of the sleeve 3 inserted therein. The inner diameter of each swage ring 4 is larger than the outer diameter at the distal end portion of the tapered portion 6 and smaller than the outer diameter at the proximal end portion of the tapered portion 6.

When swaging the joint 1, the swage ring 4 is moved relative to the sleeve 3 along the axis c of the joint 1. The swaging ring 4 may be moved while the sleeve 3 is fixed, or the sleeve 3 may be moved while the swaging ring 4 is fixed. The swage ring 4 is pushed in until it hits each stopper 5. Thereby, the sleeve 3 is compressed in the taper part 6, and each inserted pipe | tube 2 is clamped. That is, the joint 1 is crimped.

Subsequently, a swage device for caulking the joint 1 will be described. First, a schematic configuration of the swage device will be described.

FIG. 2 is a perspective view schematically showing the swage device 7. As shown in FIG. 2, the swage device 7 includes a main body portion 8, a yoke 9 (pushing member), and a usage frequency detection mechanism 11.

The main body portion 8 is a portion that supports the joint 1. The main body 8 has an upper surface 24. The upper surface 24 is provided with a groove 25 extending along the first direction. The groove 25 has such a shape that the joint 1 into which the pipe 2 is inserted can be disposed. That is, when viewed from the first direction, the groove 25 has a semicircular shape. Further, the bottom surface of the groove 25 forms a sliding surface 14. Further, a stopper 10 is provided at an end portion of the groove 25 along the first direction. The stopper 10 has a function of restricting the joint 1 from moving in the first direction.

Furthermore, a hydraulic device 18 (hydraulic cylinder) is provided in the main body 8. A hydraulic pipe 19 is connected to the hydraulic device 18. The hydraulic device 18 includes a piston rod (not shown). The piston rod is movable in the first direction by the hydraulic pressure applied via the hydraulic pipe 19.

The yoke 9 is disposed on the sliding surface 14. The yoke 9 is supported by the main body 8 and can slide on the sliding surface 14 along the first direction. Specifically, the yoke 9 is connected to a hydraulic device 18 (piston rod) through an opening (not shown) provided in the sliding surface 14. The opening extends along the first direction. The yoke 9 is moved along the first direction by the hydraulic device 18.

Further, the yoke 9 is provided with a stopper 15 and a mounting surface 12. A part of the joint 1 is placed on the placement surface 12. The stopper 15 is a part that contacts the joint 1 (the swage ring 4 or the stopper 5).

The usage frequency detection mechanism 11 has a function of detecting the usage frequency (usage) of the swage device 7. The use frequency detection mechanism 11 also functions as an inspection time detection mechanism (maintenance time detection mechanism) that detects the inspection time of the swage device 7. The usage frequency detection mechanism 11 is provided on the sliding surface 14.

FIG. 3 is a schematic diagram showing the operation during caulking. When caulking the joint 1, first, the joint 1 is placed on the main body portion 8. The joint 1 is placed so that the axis c is along the first direction. Further, the joint 1 is placed so that the swage ring 4 and the stopper 5 to be crimped between the yoke 9 and the stopper 10 are located. A part of the joint 1 (one of the swage ring 4 and the stopper 5) is placed on the placement surface 12 of the yoke 9.

Next, the yoke 9 is moved along the first direction. At this time, one of the swage ring 4 and the stopper 5 is pushed by the yoke 9 (stopper 15). The other of the swaging ring 4 and the stopper 5 is restricted by the stopper 10 from moving in the first direction. In the example shown by the solid line in FIG. 3, the yoke 9 is in contact with the swage ring 4-1, and the stopper 10 is in contact with the stopper 5-1. Therefore, the yoke 9 is pushed in the first direction until the swaging ring 4-1 hits the stopper 5-1. Thereby, the taper part 6-1 is compressed and the joint 1 is crimped. In addition, after one taper part 6-1 is crimped, the other taper part 6-2 is crimped. That is, as shown by a dotted line in FIG. 3, the arrangement is changed so that the yoke 9 contacts the stopper 5-2 and the stopper 10 contacts the swage ring 4-2. Then, the yoke 9 is moved in the first direction. As a result, the stopper 5-2 is pushed in until it hits the swage ring 4-2. Alternatively, the swaging device 7 can be reversed, the stopper 10 can be brought into contact with the stopper 5-2 in the same manner as the swaging ring 4-1, and the swaging ring 4-2 can be pushed in. Thereby, the taper part 6-2 is crimped. As described above, the pipe 2-1 and the pipe 2-2 are connected in an airtight or watertight manner via the joint 1.

Here, in this embodiment, the usage of the swage device 7 is detected by the usage frequency detection mechanism 11. The operator can determine whether or not component replacement is necessary based on the detection result. Since the use frequency detection mechanism 11 is provided, the timing of component replacement can be easily grasped. Hereinafter, the use frequency detection mechanism 11 will be described in detail.

In the present embodiment, the use frequency detection mechanism 11 is realized by a mechanism (a wear degree detection mechanism) that detects the wear degree of the sliding surface. FIG. 4 is a schematic cross-sectional view showing the sliding surface 14 and is a schematic view showing a wear degree detection mechanism. In the example shown in FIG. 4, the colored layer 13 is provided as a wear degree detection mechanism. The colored layer 13 falls off according to the wear of the sliding surface 14. By visually recognizing the color in the colored layer 13, the operator can know the degree of wear of the sliding surface 14. The degree of wear reflects the number of sliding of the yoke 9. That is, the wear level reflects the usage of the swage device 7. By detecting the degree of wear, the usage of the swage device 7 can be roughly detected, and the timing of component replacement can be grasped.

It should be noted that the wear level detection mechanism is not limited to the colored layer 13. Other configurations may be employed as the wear degree detection mechanism as long as the wear degree can be detected.

FIG. 5 is a diagram showing a modification of the present embodiment. In the example shown in FIG. 5, a fine recess 16 provided on the sliding surface 14 is used as the use frequency detection mechanism 11. As the sliding surface 14 wears, the depth of the recess 16 decreases. Therefore, the wear degree can be detected by visually recognizing the recess 16 and grasping the depth of the recess 16.

FIG. 6 is a diagram showing another modification of the present embodiment. In the modification shown in FIG. 6, a convex portion 17 is provided on the sliding surface 14 as the usage frequency detection mechanism 11. The convex portion 17 is fine and has a height that does not substantially interfere with the yoke 9 when sliding. When the sliding surface 14 is worn, the height of the convex portion 17 decreases. Therefore, the wear degree can be detected by grasping the height of the convex portion 17 by visual recognition.

As described above, according to the present embodiment, since the wear degree detection mechanism is provided as the use frequency detection mechanism 11, the wear degree of the sliding surface 14 can be visually confirmed. Therefore, it is possible to grasp the timing of component replacement (repair) without using an auxiliary tool. Also, there is no need for overhaul.

In the present embodiment, the case where the hydraulic device 18 can move the yoke 9 has been described. However, the yoke 9 is not necessarily moved by the hydraulic device 18, and another device may be configured to move the yoke 9.

[Second Embodiment]
Next, the second embodiment will be described. FIG. 7 is a perspective view schematically showing the swage device 7 according to the present embodiment. In the present embodiment, the configuration of the usage frequency detection mechanism 11 is changed with respect to the first embodiment. In addition, a notification mechanism 23 is added. About another point, since the structure similar to 1st Embodiment is employable, detailed description is abbreviate | omitted.

7, the usage frequency detection mechanism 11 includes a pressure measurement mechanism 22 and a counting mechanism 21.

The pressure measuring mechanism 22 is connected to the hydraulic pipe 19 and has a function of measuring the pressure (hydraulic pressure) in the hydraulic pipe 19.

The counting mechanism 21 has a function of detecting the number of times the joint 1 is crimped (the number of times the swage device 7 is used) based on the measurement result by the pressure measuring mechanism 22. As described above, the yoke 9 is moved by the hydraulic device 18. Accordingly, when the yoke 9 moves, the hydraulic pressure of the hydraulic pipe 19 changes. Therefore, the pressure measurement mechanism 22 can detect the number of times the joint 1 has been crimped based on the measurement result of the hydraulic pressure. Specifically, a threshold pressure is set in advance in the pressure measurement mechanism 22. The pressure measurement mechanism 22 compares the threshold pressure with the hydraulic pressure that is the detection result. The counting mechanism 21 counts the number of times the hydraulic pressure has exceeded the threshold pressure as the number of times the joint 1 has been crimped based on the comparison result by the pressure measuring mechanism 22.

The number of times counted by the counting mechanism 21 is transmitted to the operator via an output device (display device, audio output device, etc.) not shown. Thereby, the operator can know the number of times the swage device 7 is used, and can grasp the timing of parts replacement without performing an overhaul and the like as in the above-described embodiment.

On the other hand, the notification mechanism 23 is provided for notifying whether or not an appropriate pressure is applied to the hydraulic pipe 19 during caulking. The notification mechanism 23 determines whether or not the pressure in the hydraulic piping 19 is equal to or higher than a predetermined set pressure based on the measurement result by the pressure measurement mechanism 22 and notifies the determination result. The notification mechanism 23 is realized by, for example, a display device (such as a lamp) and a sound output device. Further, the set pressure may be the same as or different from the threshold pressure set in the counting mechanism 21. When the hydraulic device 18 deteriorates (such as oil leakage due to deterioration of the seal portion), sufficient pressure is not applied to the hydraulic piping 19 even during caulking. According to this embodiment, it is possible to confirm whether or not an appropriate pressure is applied by the notification mechanism 23. Thereby, the deterioration degree of the hydraulic device 18 can be grasped, and the timing of component replacement can be grasped.

As described above, according to the present embodiment, the number of uses of the swage device 7 and the degree of deterioration of the hydraulic device 18 can be grasped without performing an overhaul and the like as in the first embodiment. As a result, tool inspection and component replacement can be performed at an appropriate timing. Since it is possible to know an appropriate timing for parts replacement or the like, particularly in a large-scale site where a plurality of swage devices 7 are used at the same time, the time required for overhauling can be greatly reduced. Moreover, since the timing of parts replacement can be grasped without disassembling the apparatus, it is possible to suppress the occurrence of work delays due to apparatus defects.

The present invention has been described above using the first and second embodiments. Note that these embodiments are not independent and can be used in combination within a consistent range. For example, all of the wear degree detection mechanism, the pressure measurement mechanism, and the counting mechanism may be provided as the usage frequency detection mechanism.

This application claims convention priority based on the Japanese patent application number (JP2013-011299). That disclosure is incorporated herein by reference.

Claims

A main body that supports the joint;
A pushing member that is supported by the body portion and applies a force to the joint along a first direction so that the joint is crimped;
A swaging device comprising a use frequency detection mechanism for detecting an inspection time of the main body.
A swage device according to claim 1,
Further comprising a stopper provided on the main body,
The joint has a first member and a second member arranged on the same axis,
The stopper abuts one of the first member and the second member, and restricts the one member from moving in the first direction;
The swaging device is configured to push the other member in the first direction so that the pushing member contacts the other of the first member and the second member and the joint is crimped.
A swage device according to claim 1,
The main body has a sliding surface,
The pushing member is supported by the main body so as to slide on the sliding surface along the first direction,
The swage device, wherein the usage frequency detection mechanism includes a wear level detection mechanism that detects a wear level of the sliding surface.
A swage device according to claim 3,
The wear level detection mechanism has a colored layer that is provided on the sliding surface and drops off in accordance with wear.
A swage device according to claim 3,
The wear level detection mechanism has a concave portion or a convex portion provided on the sliding surface.
A swage device according to any one of claims 1 to 5,
A hydraulic device for moving the pushing member along the first direction;
A hydraulic pipe connected to the hydraulic device;
The use frequency detection mechanism includes:
A pressure measuring mechanism for measuring the pressure in the hydraulic pipe;
A swaging device comprising: a counting mechanism that counts the number of times the joint is crimped based on a measurement result by the pressure measuring mechanism.
A swage device according to claim 6,
A swaging device further comprising a notification mechanism for determining whether or not the pressure in the hydraulic piping is equal to or higher than a predetermined set pressure based on a detection result by the pressure measurement mechanism and notifying the determination result.