JPS6332573B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an assembly transport jig used for automatically assembling products on an automatic transport line.

Conventionally, as a conveyance jig, for example,
In the parts feeding device of No. 103768, a carrier having a holding chamber that matches the shape and size of the parts to be fed and legs that fit into a strip-shaped supply belt is placed at a constant pitch on the supply belt on the strip. It is known that a configuration in which a suitable number of devices are installed.

However, with the above configuration, although it is possible to simply transport the supplied articles, it is not possible to hold the articles so that they can be assembled, and the articles cannot be removed or inspected by air injection. Nakatsuta.

This invention was devised as a result of intensive research in view of the above circumstances. The jig base is provided with a hole for passing air injection from below to the cylindrical article, and a hole for inserting a push-up pin is provided in the jig base to hold the cylindrical article after assembly. An object of the present invention is to provide a jig for assembling and conveying which can be pulled out.

In order to solve the above-mentioned problems, the present invention provides the following features: (a) An outer circumference of the proximal end of a cylindrical body forming one engaging part on the inner circumferential wall above the hole provided at the center of the axis. (b) an assembly and transport jig for removably holding a cylindrical article provided with an outward flange extending substantially horizontally, and for transporting the cylindrical article by placing it on an automatic conveyance path; (c) providing a cylindrical article holding pin made of a shaft-like member that is set to have substantially the same cross section and that can be inserted into the hole; (c) vertically extending along the axial center of the cylindrical article holding pin; (d) A vertical section of the lower end of the air conduction hole is provided with a tapered opening that gradually widens toward the lower end; (e) Above the cylindrical article holding pin, an air conduction hole is provided. (f) the cylindrical article holding pins are raised at regular intervals in the longitudinal direction to engage the cylindrical article; (g) providing a jig base consisting of a longitudinal member that is removably attached; (g) mounting of the cylindrical article on the upper surface of the jig base adjacent to a cylindrical article holding pin attached to the jig base; A technical measure is taken to provide a push-up pin introduction guide hole that opens in the range of the contact surface with the outward facing flange piece and passes through the upper and lower sides when worn.

Thereby, the hole of the cylindrical article is externally fitted onto the cylindrical article holding pin provided upright on the jig base.

At that time, the outward flange of the cylindrical article collides with the surface of the jig base to form a stopper, and one engaging portion formed in the hole and the other formed on the cylindrical article holding pin The engaging portion is removably engaged with the concave and convex portions.

Therefore, the cylindrical article is reliably engaged with the cylindrical article holding pin, and there is no risk of the cylindrical article wobbling even when an assembly operation is performed on the cylindrical article.

In addition, since the pin for holding a cylindrical article has an air conduction hole passing through it vertically, air can be introduced into the hole of the cylindrical article by appropriately jetting air from below. Since it has a tapered opening, it is possible to set the air injection nozzle at the center of the air passage hole.

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

The jig 1 of the present invention consists of a jig base 2 forming the main body, and a set number of cylindrical article holding pins (hereinafter referred to as article holding pins) 3 implanted in the base. .

The jig base 2 is made of an integrally molded piece of hard synthetic resin, and has a set number of pin holes 2a drilled in rows at regular intervals along the longitudinal direction of the center of the upper wall surface, and each pin hole in the vicinity of the pin holes 2a. A push-up pin introduction guide hole 2b for product removal is bored at a position sandwiching each of the two in plan view, and tapered surfaces 2c and 2d are formed as precision positioning function element parts in the longitudinal direction on both sides.
It has a shape and configuration.

On the other hand, the article holding pins 3 are made of precision machined metal pins made of stainless steel or other superalloys, and are removably fitted into each pin hole 2a of the jig base 2 and stand upright on the base. .

This article holding pin 3 has a cylindrical article (hereinafter referred to as an article) 4 (a third article) fitted into the pin.
A locking function part 3a as one of the engaging parts that releasably locks the pin (see figure) by a concave-convex engagement, and a compressed air injection hole 3b that passes through each pin shaft center.
and an automatic centripetal function section 3c for centering the article (Fig. 3,
(see Fig. 4).

In the illustrated example, the lock function section 3a is connected to the pin 3.
consisting of an annular engagement groove formed on the head side, and
The automatic centripetal function section 3c consists of a tapered hole section formed on the proximal opening side of the compressed air injection hole 3b.

Further, as a removable fitting means for the article holding pin 3 into the pin hole 2a, an annular locking groove 3d (see FIG. 4) is provided on the inner peripheral wall surface of the pin hole 2a.
Further, annular locking protrusions 3e are integrally formed on the outer periphery of each pin 3.

By press-fitting the pin 3 into the pin hole 2a from below, the annular locking protrusion 3e fits and locks into the annular locking groove 3d, and the pin 3 is inevitably locked. The lock is released by hitting the pin 3 in the opposite direction to the press-fitting direction, thereby allowing the pin 3 to be removed.

By being able to remove the expensive pin 3 made of precision machined metal in this way, when the jig base 2 wears out, only the base needs to be replaced with a new one.
Therefore, there is an advantage that the expensive pin 3 can be used repeatedly.

The jig 1 having the above structure is placed on an automatic transport device, for example, a loop transfer, and is automatically transported by the transfer.

During the transportation process, an article to be assembled 4 as shown in FIG. 3 is fitted into each pin 3 of the jig 1.

In this case, the article 4 is made of a cylindrical body made of synthetic resin or the like, and the cross section of the hole provided at its axis is set to be approximately the same size as the cross section of the article holding pin 3. Therefore, it is necessary that the article holding pin 3 can be fitted onto the outside without any gaps in the circumferential direction, and in the case of the illustrated example, an extremely small diameter through hole 4a is provided at the center of the upper wall.

Further, the cylindrical article 4 is integrally formed in the middle part of the inner circumferential surface, and the annular engagement groove 3a of the article holding pin 3 is formed integrally with the inner peripheral surface.
It is equipped with an annular engagement step part 4b as the other engagement part for engaging and disengaging, and an outward flange piece 4c integrally formed at the lower end opening edge, and in the case of the illustrated example, a needle-like through hole is provided. The ultra-fine article 5 having the cylindrical article 4 is fitted into and coupled to the ultra-small diameter through hole 4a of the cylindrical article 4.

The cylindrical article 4 is fitted into the article holding pin 3 of the jig by automatic mechanical means at the cylindrical article automatic setting position during the automatic conveyance process of the jig 1 by a transfer or the like.

At the time of fitting, the annular engagement step portion 4b of the cylindrical article 4
The cylindrical article 4 is held in a locked state by the pin 3 by removably fitting into and engaging with the annular engagement groove 3a of the pin 3.

In this state, the outward flange piece 4c at the lower end of the cylindrical article 4 is inserted into the push-up pin introduction guide hole 2 of the jig base 2.
The position of the hole 2b is set in advance so as to block at least a portion of the hole 2b.

In this way, when the jig 1 in which the cylindrical articles 4 are removably fitted into all the article holding pins 3 is automatically conveyed to the needle-like article automatic setting position for the next process, the jig 1 is automatically transported to the needle-like article automatic setting position for the next process. At this step, the proximal end of the needle-like article 5 is press-fitted into the extremely small-diameter through-hole 4a of the upper cylindrical article 4 of the jig by automatic mechanical means.

As a result, a completed assembled product of the cylindrical article 4 and the needle-like article 5 is obtained, and the finished product is automatically inspected for clogging, etc. at the quality inspection position in the next process, and then transferred to the next capping position. The protective cap 6 is automatically fitted.

As described above, at each setting position, quality inspection position, capping position, etc. in the automatic article assembly line, the jig 1 is temporarily clamped by automatic mechanical means. , 2d automatically perform precision positioning of the jig, and at the same time, automatic centripeting is performed by the tapered hole portion 3c of each pin 3.

In addition, at the quality inspection position, a compressed air injection nozzle is applied to the tapered hole 3 of each pin 3 by automatic mechanical means.
automatic centripetal alignment by fitting into and aligning the pins 3, and automatic clogging inspection of the assembled finished product by air jetting from the nozzles to the air jet holes 3b of each pin 3;
Air cleaning of the finished product can be performed almost simultaneously.

Furthermore, the finished product on the jig is produced by automatically and mechanically pushing up the outward flange piece 4c at the lower end of the cylindrical article 4 through the pushing-up pin introduction hole 2b of the jig base 2 with a pushing-up pin (not shown). removed.

As described above, the assembly and conveyance jig of the present invention has a holding function for removably fitting and locking cylindrical articles, a precision positioning function and an automatic centripetal function during automatic article setting and automatic quality inspection, and a compressed air injection function. It has all the functions necessary for automatic product assembly on an automatic transport line, such as holes and push-up pin introduction guide holes for removing assembled finished products, and greatly contributes to improved maintenance and productivity of the line.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the present invention, and FIG. 1 is a perspective view of the jig, FIG. 2 is a plan view thereof, and FIG. FIG. 4, which shows the added state, is an exploded sectional view of the jig. 1 is a jig, 2 is a jig base, 2a is a pin hole, 2
b is a push-up pin introduction guide hole, 2c and 2d are tapered surfaces exemplified as precision positioning function elements, 3 is an article holding pin, 3a is a locking function part, 3b is a compressed air injection hole, and 3c is an automatic centripetal function part , 4 are articles.

Claims (1)

[Scope of Claims] 1. An outward flange extending outward and substantially horizontally on the outer periphery of the base end of the cylindrical body forming one engaging portion on the inner circumferential wall above the hole provided at the center of the axis. An assembly and transport jig for removably holding a cylindrical article provided with a piece and placing it on an automatic conveyance path for conveyance, the cross section being set to be substantially the same as the cross section of the hole of the cylindrical article; A cylindrical article holding pin made of a shaft-shaped member that can be inserted into the hole; an air conduction hole that penetrates vertically along the axial center of the cylindrical article holding pin; and a longitudinal section of the lower end side of the air conduction hole. a tapered opening whose surface gradually widens toward the lower end; and the other engagement portion formed above the cylindrical article holding pin and engaged with one engagement portion formed on the cylindrical article in a concave-convex manner. a jig base comprising a longitudinal member to which the cylindrical article holding pins are vertically erected at regular intervals and removably attached to the jig base; It is characterized by comprising a push-up pin introduction guide hole that is adjacent to the cylindrical article holding pin and that penetrates vertically and opens within the range of the contact surface with the outward facing collar piece when the cylindrical article is attached. Jig for assembly and transportation.