JPH01105094A - Method and device for mounting elastic member to long-sized body - Google Patents

Abstract

PURPOSE: To mount a cylindrical elastic member simply and with high precision by dismantling the long article with expanding means after transferring the expanded elastic member from the expanding means to the side of the long article. CONSTITUTION: The internal side of three nibs 10 capable of forming an imaginary cylinder is capable of being inserted by a hose 1, and the external side is capable of engaging a sponge rubber 2 to be expanded. Each nib 10 can be moved forward and backward in the radial direction of the imaginary cylinder by a drive device such as a hydraulic cylinder. The engaged sponge rubber 2 can be expanded by this way. When the sponge rubber 2 is engaged on the outer periphery of the nibs 10, a pushing out cylinder 12 can be moved by an air cylinder 13 to push the sponge rubber 2 out of the nibs 10.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention has an extremely excellent effect when attaching sponge rubber, etc., which is attached to cushion pipes in the engine compartment of an automobile, for example. The present invention relates to a method and apparatus for attaching a cylindrical elastic member to a long body, which is expected to be possible.

[Prior art and problems] For example, brake hoses and power steering hoses installed in the engine room of automobiles.
A protective cylindrical elastic member, such as a cylindrical sponge rubber member, as shown in FIG. 1, is attached to the holder for the purpose of preventing damage caused by vibration.

Such an elastic member 2 needs to be correctly mounted at a position having a required distance from the end of the elongated body 1. As a method for such attachment, a method as shown in FIG. 6 has conventionally been used. That is, the elastic member 2 to be attached (FIG. 6(a)) is heated in a constant temperature bath and temporarily attached to the end of the elongated body 1 as shown in FIG. 6(b). Thereafter, as shown in FIG. 6(C), insert the guide pin 3 into the elongated body 1, and push it in the direction of the arrow in the figure to the position indicated by the dotted line using the pushing jig 4 (in this example, it is cylinder-driven). Move it and push it to the position shown in Figure 1 to install it.

However, this method requires multiple steps as described above, and also requires heating the elastic member 2, which not only wastes energy, but also has poor workability because the heated parts are handled. In addition, friction with the elongated body 1 is unavoidable when pushing the elongated body to a predetermined position, and printing on the outer surface of the elongated body 1 disappears due to friction, and positioning accuracy deteriorates due to deflection of the elongated body 1 and the elastic member 2. There was a problem. □ [Object of the Invention] An object of the present invention is to eliminate the drawbacks of the prior art described above, and to provide a method and apparatus for accurately and easily attaching a cylindrical elastic member to a predetermined position of a long body such as a hose. It is about providing.

[Summary of the Invention] That is, the gist of the present invention is to expand a cylindrical elastic member by an expanding means such as a chuck pawl, and insert an elongated body into the inside of the expanded chuck pawl. At the predetermined position, return the chuck claw to its original position, hold the elongated object in place with the chuck claw, and roll the elastic member fitted onto the chuck claw over the outer periphery of the elongated object. As a result, there is no need to keep the elastic member warm or push it in after temporary attachment, and it is possible to attach the elastic member to a long body accurately and efficiently during the process. It is something that forces you to do something.

[Example] The present invention will be described below, taking as an example a case in which sponge rubber is attached to a hose in the engine room of an automobile.

FIG. 2 is an explanatory sketch showing a specific example of a device used in the mounting method according to the present invention.

10.10 are three claws that can form a virtual cylinder, into which a hose 1 (described later) can be inserted, and a sponge rubber 2 to be expanded, which will also be described later, is inserted into the outside of the virtual cylinder. Constructed so that it can be fitted. Each claw part 10.
1"0 is configured to be able to move forward and backward in the radial direction of the virtual cylinder by a driving device such as a hydraulic cylinder 11, thereby expanding the fitted sponge rubber. 12 is configured as described above. On the outer periphery of the claws 10, 10, for example, the air cylinder 13 allows the claws 10, 10 to move forward and backward in the axial direction of the virtual cylinder formed by the claws 10, 10.
When the sponge rubber is fitted around the outer periphery of 0.10, by moving it using the air cylinder 13,
This is a push-off ring that pushes out the sponge rubber from the claw portion 10.10. Further, on the extension of the axis of the virtual cylinder created by the claw portion 10.10, there is a stopper stand 14 which is supported by a support shaft 15 and can move along the support shaft 15. The scale scale 17 makes it possible to determine the distance from a predetermined portion of the claw portion 10.10, thereby making it possible to easily determine the attachment distance in FIG. 1 on the hose 1 to which the sponge 2 is attached. It is now possible to do so.

Reference numerals 18 and 18' denote a position sensor for checking whether the tip of the hose 1 has reached the stopper stand 14, and 19 a locking member for fixing the stopper stand 14 at a predetermined position.

Next, the procedure for attaching sponge rubber to the hose 1 using the attaching device according to the present invention configured as shown in FIG. 2 will be explained based on FIGS. 3 to 5.

FIG. 3 shows a state in which the claws 10, 10 are reduced in diameter by the drive of the cylinder 11, the push-off ring 12 is first fitted, and then the sponge rubber 2 is loosely fitted thereon. FIG. In this case, by making the mold outer diameter dz smaller than the inner diameter of the sponge rubber 2, fitting can be easily achieved. Note that the mold inner diameter d1 in this case does not necessarily have to be larger than the outer diameter of the hose 1.
It may have an appropriate inner diameter before expansion.

After the sponge rubber 2 is fitted to the claw portion 10°10 as shown in FIG. 3, it is driven by the cylinder 11 and the claw portion 10,
The outer diameter of 10 is expanded, thereby expanding the sponge rubber 2. Once the required expansion is completed, insert the hose 1 inside the similarly expanded claws 10, 10 as shown in FIG.
Insert it. The hose 1 has the measuring scale 17 explained earlier.
It is inserted until its tip abuts against the stopper stand 14 set in advance. By inserting the sponge rubber 2 in this manner, the distance at which the sponge rubber 2 is attached to the hose 1 as described above is automatically determined. At this time, the position sensor 18, 18' confirms whether or not the tip of the hose 1 has surely reached the stopper stand 14, and if this is confirmed, the cylinder 11 is reversely driven and the claw part 10
．． 10 is reduced in diameter, thereby firmly holding the hose 1 in the inserted state. The air cylinder 13 is operated in this fixed state, and the removal ring 12 is removed as shown in FIG.
The sponge rubber 2 fitted and expanded in the claws 10 and 10 is pushed away in the direction of arrow A in the figure, removed from the outer periphery of the claws 10 and 10, and moved onto the outer periphery of the pose 1.

The stopper stand 14 is set in advance so that the relocated position of the sponge rubber 2 matches the position of the distance ML shown in FIG.
It was explained earlier that the position is determined by the .

Next, by loosening the grip of the claw part 10.10 on the hose 1, the hose 1 with the sponge rubber 2 attached to the predetermined position can be easily removed, and there is no heating process or pushing process involved. The installation of the sponge rubber is completed through the work in the process.

It should be noted that the above description specifically specifies the hose and sponge rubber and explains it in an easy-to-understand manner, and it goes without saying that this does not have a limiting meaning. Not only the shape and configuration of the claw part, but also the driving part can be changed as necessary, such as opening and closing by a motor drive that does not depend on a cylinder.Even if it is a removable ring, it is not limited to the ring configuration, and the stopper mechanism etc. can also be changed according to the technical features of the present invention. Of course, various changes can be made within the scope of the idea.

In addition, the long body to be attached is not limited to the hose in the engine room, the elastic member is not limited to sponge rubber, and the shape is not limited to a circular cross section, but there is no problem even if it is a non-circular cross section. There isn't. For example, even if the elongated body is easily damaged, such as a glass tube, the device according to the present invention can be suitably applied by limiting the material of the claw portion, etc.

[Effects of the Invention] As described above, according to the present invention, the conventional steps such as heating and temporary attachment can be omitted, the work can be greatly simplified, and the elongated body and the cylindrical elastic member can be The friction is slight;
It solves problems such as the external print on the object disappearing or misalignment of the elastic member mounting position, and by adding an automatic attachment/detachment mechanism, it becomes fully automated and unmanned, so its industrial significance is extremely significant. There is.

[Brief explanation of the drawing]

FIG. 1 is a sketch showing an example of a specific example to which the present invention is applied, in which a sponge rubber is attached to a hose in an engine room; FIG. 2 is an explanatory diagram showing a specific example of a device according to the present invention; 3 to 5 are explanatory sectional views showing the mounting procedure according to the present invention, and FIG. 6 is an explanatory view showing the conventional mounting situation. 1: Long body (hose), 2: Elastic member (sponge rubber), 10: Claw portion, 11: Drive device, 12: Removal ring, 14: Stopper stand, 18.18': Position sensor. Agent Patent attorney Fujio Sato No. 1 Figure IeS4λ] Secipure

Claims (5)

[Claims] (1) A method of attaching an elastic member to a predetermined position on the outer periphery of an elongated body, in which the elastic member to be attached is expanded by an expanding means having an expansion space in which the elongated body to be attached can be inserted and moved. , the elongated body is inserted into the expansion space so that a predetermined portion to which the elastic member is attached is adapted to the elastic member in the expanded state, and in this state, the elastic member is moved from the expansion means to the side of the elongate body. A method for attaching an elastic member to an elongated body, in which the elastic member is moved to the elongated body, and then the elongated body is removed by an expanding means. (2) The mounting method according to claim 1, wherein the elongated body is a pipe in an engine room of an automobile. (3) The mounting method according to claim 2, wherein the elastic member is sponge rubber. (4) It can be inserted inside the short cylindrical elastic member, and has a space inside itself into which the elongated body to which the cylindrical elastic member is attached can be inserted, and each of the short cylindrical elastic members a plurality of claws that are movable in the lateral direction of the cylindrical elastic member and thereby expand the cylindrical elastic member; and a plurality of claws that cooperate with the claws to move the cylindrical elastic member in the axial direction thereof. A device for attaching an elastic member to an elongated body, comprising a detachment means that can be detached from the claw portion. (5) The mounting device according to claim 4, wherein a regulating means capable of regulating the protrusion length of the elongated body inserted therein is provided on the insertion path of the elongated body to be attached.