JPH07156028A - Hollow cylinder assembling device by divided parts - Google Patents

Abstract

PURPOSE:To automatically gather respective divided parts as they are arrayed toward a center jig simultaneously and assemble a hollow cylinder by synchronously press-operating respective parts holding means in a centripetal direction toward the center jig by a pressing means. CONSTITUTION:A rising/lowering table 23 is supported by a rising/lowering cylinder 16 and the cam followers 13 and 15 belonging to a parts holding means 21 are raised to a virtual line position where they are pressed to oppositely placed respective cams 12 and 14 in the condition that the position of each divided part 5 is regulated. The cam followers 13 and 15 are press-moved to the virtual line position in a centripetal direction by the cams 12 and 14 and thereby a vertical part 6b is stuck by pressing to the side peripheral surface of a center jig 11 with play and the position of the part holding jig 6 of each component holding means 21 is properly regulated on the outer surface of the center jig 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a split part in which a hollow cylinder is angle-divided, and is fitted with a recess provided on one of the adjoining joining surfaces and a projection provided on the other. The present invention relates to a hollow cylinder assembling apparatus using divided parts, which is used for joining, integrating and forming a hollow cylinder.

[0002]

2. Description of the Related Art In recent years, as miniaturization and higher performance of core parts such as motors have progressed, the difficulty of assembling work has increased, and the accuracy tends to vary if the operator's skill is relied upon. It takes a long time to work.

Therefore, there is an increasing demand for an automatic machine capable of assembling the divided parts forming the hollow cylinder such as the stator at high speed and with high precision, and the conventional apparatus and method for assembling the hollow cylinder as shown in FIG. 3 has been adopted. It has become so.

In this apparatus, a center jig 2 that serves as a reference for the inner surface when joining the hollow cylindrical divided parts 1 and the divided parts 1 gathered around the center jig 2 are tightened from the outside. The center jig 2 has upper and lower rings 3 and 4 for positioning the divided parts 1 at predetermined joint relational positions whose inner surface positions are regulated. The upper and lower rings 3 and 4 are of a split type, and the tightening is a split type that is performed by bringing the split parts together.

The concrete work of joining the divided parts 1 and assembling them into a hollow cylinder will be described. First, the upper ring 4
Is removed, and the split tightening by the lower ring 3 is loosened. Next, an operator fits the concave portions 1a and the convex portions 1b formed between the adjacent joint surfaces while arranging the divided parts 1 around the center jig 2 with reference to the side peripheral surface thereof. . In this work, the concave portion 1a and the convex portion 1b are fitted by laterally bringing the next split component 1 closer to the open joint surface of the split component 1 that is positioned around the center jig 2 in advance. It is carried out by bringing them into close contact with the side peripheral surface of the center jig 2 while adjusting them.

The last split component 1 has a space between both joint surfaces facing each other leaving a gap in which one split component 1 fits.
As shown in the figure, while inserting from above, the concave portions 1a and the convex portions 1b of the joint surfaces on both sides of the final divided component 1 and the joint surfaces facing each other to be joined are inserted. By fitting in the directions, the divided parts 1 are combined to form a temporary hollow cylinder.

However, in this case, the divided parts 1 still have gaps and play between each other and with the center jig 2, so that they do not satisfy proper joining relation positions. Therefore, by fitting the outer ring of each divided part 1 in which the upper ring 4 with the loosened tightening loosened is assembled from above, and by alternately splitting the lower ring 3 and the upper ring 4,
It is assembled into a hollow cylinder positioned with the center jig 2 as a reference, and joined and integrated by various methods such as adhesion and laser welding.

[0008]

However, in the method of assembling a hollow cylinder using the above-mentioned conventional device, there is still a lot of skilled work and manual work of the operator, so that the accuracy is likely to vary and the working time is still short. Not shortened enough.

Further, in the split tightening with the upper and lower rings 3 and 4, since the pressing force in the centripetal direction toward the center jig is not evenly applied to the divided parts 1, there is a problem that the cylindricity of the inner surface is difficult to be obtained. .

An object of the present invention is to solve such a conventional problem, and to automatically move the respective divided parts in a centripetal direction toward the center jig in synchronization with each other so that the joining surfaces of the parts are joined on the way. An object of the present invention is to provide an apparatus for assembling a hollow cylinder with divided parts that can be assembled into a predetermined hollow cylinder with high accuracy and high efficiency with the concavo-convex portions fitted together.

[0011]

In order to achieve the above object, the apparatus for assembling a hollow cylinder according to the present invention divides the hollow cylinder into angularly-divided parts, which are adjacent to each other. The concave portions provided on one of the joining surfaces and the convex portions provided on the other side are joined and integrated together,
In a hollow cylinder assembling apparatus that uses a hollow cylinder, a direction in which each divided part is held around a center jig that positions each divided part gathered in a predetermined joining relation position and is separated from and contacted with the center jig. The parts holding means that can be moved to the center jig is provided, and these parts holding means are pushed in synchronization with the centripetal direction toward the center jig side, and the divided parts held in the parts holding means are set by the center jig. It is characterized in that a pressing means for pressing to a predetermined joining relation position is provided.

[0012]

In the above construction of the hollow cylinder assembling apparatus by the divided parts of the present invention, the hollow cylinder is assembled only by individually holding each of the divided parts required for assembling the hollow cylinder by the respective part holding means. As many split parts as necessary can be arranged side by side around the reference center jig.

Each of the component holding means can be moved in a direction in which it comes in and out of contact with the center jig, and each of the component holding means is pushed by the pushing means in synchronism with the centripetal direction toward the center jig, thereby holding each of them. While automatically arranging each of the divided parts side by side toward the center jig at the same time, at the same time, by utilizing the fact that the joint surfaces come close to each other, one concave portion and one convex portion provided on these joint surfaces are used. It is possible to obtain a necessary joined state by automatically fitting the parts to each other and finally pressing and positioning them at a predetermined joining-related position which is regulated by the center jig.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hollow cylinder assembling apparatus for divided parts as an embodiment of the present invention will be described below with reference to FIGS.

The hollow cylinder assembling apparatus for the divided parts of the present embodiment is to assemble the divided parts 5 in the centripetal direction indicated by the arrow by assembling the divided parts 5 in the form of angled hollow cylinders as shown in FIG. The stator is formed in a hollow cylindrical shape for a motor at a predetermined joining relation position.

As shown in FIG. 1, the whole apparatus is provided with a center jig 11 as a reference for positioning each of the divided parts 5 at a predetermined joining relation position, which is erected at the center of the lifting table 23. Around the jig 11, component holding means 21 for individually sandwiching each divided component 5 from inside and outside are arranged by the same number as the required divided components 5.

Each of the component holding means 21 has a base 6a for receiving the lower surface of the split component 5, and a vertical portion 6b for standing up from the end of the base 6a on the side of the center jig 11 and receiving the rear face of the split component 5. The component holding jig 6 having the above and a base 6a of the component holding jig 6 are pivotally supported by a shaft 22 to clamp the split component 5 between the vertical part 6b and release the clamping. It is equipped with a clamp lever 7 that can The clamp lever 7 is urged in a direction in which the split component 5 is clamped by a spring 8 which works between the clamp lever 7 and the base 6a.

The clamp lever 7 is manually rotated against the spring 8 in a direction to release the clamping, and the vertical portion 6b is rotated.
Can be opened, and when the split component 5 is inserted between the clamp lever 7 and the vertical portion 6b in this open state and the hand is released from the clamp lever 7, the clamp lever 7 Since the spring 8 reciprocates in the clamping direction, the split component 5 is attached to the vertical portion 6b and the clamp lever 7.
It can be sandwiched between and from the inside and outside directions. However, the manual work can be automated if necessary.

The base 6a of the component holding means 21 is supported by a linear guide 9 radially arranged around the center jig 11 on the elevating table 23 so that the linear guide 9 can be brought into and out of contact with the center jig 11. The spring 10 biases the center jig 11 away from the center jig 11.

Therefore, the component holding means 21 is always positioned at the position shown in FIG. 1 which is apart from the center jig 11 by a predetermined distance, and the holding work of the divided component 5 is normally performed at this normal position, It is possible to hold a number of divided parts 5 so as to be lined up on the same circle around the center jig 11 and stand by.

The linear guide 9 can magnetically move each component holding means 21 holding the divided component 5 to the side of the center jig 11, and the linear guide 9 is electrically moved to control the movement. It is designed to be synchronized.

As a result, the divided parts 5 held by the respective parts holding means 21 are moved synchronously in the centripetal direction indicated by the arrow from the state shown in FIG. Since the adjacent ones lean toward each other while concentrating on the side of, the concave portions 5b and the convex portions 5c formed between the joining surfaces 5a that lean toward each other can be automatically fitted in the final state. When the vertical portion 6b of the component holding jig 6 comes into contact with the side peripheral surface of the center jig 11 and the position of the divided component 5 is substantially adjusted, the recesses 5b and the protrusions 5c of the respective split parts 5 are fitted to each other almost properly. The parts are substantially aligned through the component holding jig 6 so that they are aligned with each other and have a predetermined joining relationship position.

Each of the component holding means 21 is provided with cam followers 13 and 15 at the outer end of the base 6a of the respective component holding jig 6 and the upper end of the clamp lever 7. These cam followers 13 and 15 are arranged on two circles of large and small, respectively, and a cam 12 opposed to them is provided above the cam followers 13 arranged on a large circle, and arranged on a small circle. A cam 14 is provided above the formed cam follower 15 so as to face them.

Each cam 12, 14 is in a state in which the corresponding cam followers 13, 15 are divided into an appropriate number on the circumference so as to push the corresponding cam followers 13, 15 toward the center jig 11, that is, in the centripetal direction side to a predetermined position. It is provided in.

The elevating table 23 is supported by the elevating cylinder 16, and the cam followers 13 and 15 of the component holding means 21 are opposed to the cam followers 13 and 15 of the component holding means 21 in a state where the respective divided components 5 are substantially aligned. It is lifted up to the phantom line position of FIG.

When the cam followers 13 and 15 are pushed in the centripetal direction by the cams 12 and 14 to the imaginary line position at the raised position indicated by the imaginary line, the component holding jig 6 of each component holding means 21 is vertically moved. Part 6b is the center jig 11
The outer peripheral surface of the center jig 11 is pressed against the outer peripheral surface of the center jig 11 without any play, and is properly positioned on the outer surface of the center jig 11. Also, for the vertical portion 6b where the clamp lever 7 faces this,
The divided parts 5 held between the two are pressed so as to be in close contact with each other without play so that the vertical portion 6b properly positions the divided parts.

In short, each of the divided parts 5 is properly positioned by the side peripheral surface of the center jig 11 via the vertical portion 6b, and accordingly, without any variation or time-consuming work as in the case of manual operation. It is possible to efficiently and quickly obtain the assembled state of the hollow cylinder positioned with high accuracy so as to be in the joining relation position.

In this hollow cylinder assembled state, the adjacent joint surfaces of the divided parts 5 are adhered to each other, or the adjacent parts of the divided parts 5 are appropriately welded by using a laser, and It is possible to join and integrate while maintaining a highly accurate assembled state.

As the joining and unifying method, it is preferable to select one that satisfies the conditions required according to the application such as the bonding strength.

The divided parts 5 of the parts holding means 21
The specific structure for sandwiching and the specific structure for separating and contacting the component holding means 21 with respect to the center jig 11 can be variously designed. For example, in the case where a gap can be formed between adjacent portions such as the end portions of each divided component 5, or when such a shape can be formed, each divided component 5 is utilized by using such a gap.
Is sandwiched from both sides orthogonal to this, not in the inward / outward direction,
It is possible to directly or indirectly push the cam to directly contact the side peripheral surface of the center jig 11 for position adjustment. In the case where the pushing movement of the cam is exerted on the split component 5 via the lever as in the present embodiment, it is preferable to equip the inner surface side with the lower surface of the split component 5 and to sandwich it from both sides. Further, in this case, the split component 5 may be clamped in the vertical direction. Needless to say, any holding method other than sandwiching may be adopted as long as the divided component 5 can be held at a predetermined position and moved in the centripetal direction.

Further, in order to push the divided parts by the cam to press them against the center jig, the center jig and the parts holding means are raised in this embodiment, but the cam side may be lowered. Of course. In short, it suffices that both can relatively move in the axial direction of the center jig.

Further, the component holding means 21 is urged in the centripetal direction to press each divided component 5 to a predetermined joining relational position set by the center jig 11 and position the linear guide 9 and a cam. 12 and 14 may be replaced by another appropriate pressing means.

[0033]

According to the hollow cylinder assembling apparatus using the divided parts of the present invention, each of the divided parts necessary for assembling the hollow cylinder can be individually held by each part holding means, and the hollow cylinder can be held. The required number of divided parts are arranged around the center jig that is the basis for assembling the parts, and each part holding means is pushed by the pushing means in synchronization with the centering direction toward the center jig. Automatically gathering the divided parts side by side toward the center jig at the same time, and utilizing the fact that the joint surfaces are close to each other, the recesses and protrusions provided on the joint surfaces are automatically fitted. While
Finally, each divided part is pressed and positioned at a predetermined joining relationship position that is regulated by the center jig to obtain the required joining state, so there is no variation due to manpower, high precision and high speed without labor. Hollow cylinders can be assembled.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an apparatus for assembling a hollow cylinder with divided parts according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which a hollow cylinder is assembled by split parts in the apparatus of FIG.

FIG. 3 is an explanatory view showing a conventional apparatus and method for assembling a hollow cylinder.

[Explanation of symbols]

 5 split parts 9 linear guide 10 spring 11 center jig 12, 14 cam 13, 15 cam follower 16 lifting cylinder 21 parts holding means 23 lifting table

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshi Kitada 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A hollow component formed by dividing a hollow cylinder into an angle is integrally joined together by fitting a concave portion provided on one of the adjoining joining surfaces and a convex portion provided on the other, thereby forming a hollow portion. In a hollow-cylindrical assembling device that uses a cylinder, in the direction in which each divided part is held around the center jig that positions each divided part gathered in a predetermined joining relation position, and is separated from and attached to the center jig. Provided with a component holding means capable of moving, and pushing each of these component holding means in synchronization with the centripetal direction toward the center jig side,
A hollow cylinder assembling apparatus for divided parts, characterized in that a pressing means for pressing the divided parts held by the part holding means to a predetermined joining relational position set by a center jig is provided.