JPS5982164A - Brazing device for small parts to long sized object - Google Patents

Abstract

PURPOSE:To braze small parts to a pipe, etc. with ease by providing receiving parts for the long-sized object and arms for holding the small parts at a prescribed interval on a conveyor and providing means for heating and brazing the same with plural burner devices. CONSTITUTION:Receiving parts 3 on which long-sized objects are horizontally placed and arms 5 for holding small parts are provided at an equal interval on a conveyor 2. A pipe P, etc. are horizontally held in the V-groove 4 in each receiving part 3, and a small part is inserted into the holding hole 5a of each arm 5. The parts are fed successively toward a burner 8 and a brazing material is supplied from a wire feeder 23. The burner 8 injects a flame to the brazing position of the pipe P positioned right below the burner thereby performing heating and brazing. At the same time, the holding arm of the burner 8 is moved back and forth in the longitudinal direction of the pipe P to heat uniformly the circumferential edge in the brazing part. The working environment is improved by the above-mentioned method and the uniformity in brazing is maintained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to an apparatus H for rationally brazing small parts such as an outer guide for holding a brake wire to a pipe constituting a bicycle frame.

Conventionally, the work of brazing small DtFa products as described above involves first cutting an object to be brazed, such as a pipe, into a predetermined length, and fixing both ends of it to an appropriate jig. The small parts were placed on the target location, heated with a hand burner while being held down appropriately, and brazing was performed without supplying a wire-shaped brazing material thereto.

However, in the case of the above-mentioned conventional method, uniform brazing around small parts is difficult and requires a lot of skill, which not only increases costs but also makes it difficult to mass-produce. When brazing multiple small parts, such as the above-mentioned outer guide, to a target object, it is important to check the directionality of the wire to be passed through it or the mutual balance of the through holes. This must be raised as a particularly sensitive issue.

The present invention has been devised to solve the various problems mentioned above, and specifically includes a conveyor that runs in a narrow end shape, and long brazing pairs placed on the conveyor at predetermined intervals. In
A plurality of holders are attached to horizontally mount the ＋, and the holders are attached to the brazing parts of the object to be brazed (a small part holding arm for contacting and holding the small parts, and a small parts holding arm for holding the small parts in contact with each other). It consists of a burner device that heats and brazes the brazing parts and small parts of the object to be brazed, and if necessary, the above-mentioned receiver is one side edge of the part, and the plate object to be brazed is horizontally mounted. Same as the abutment piece facing the position where
The receiver is characterized by the addition of a means for moving a long object in the longitudinal direction, which is provided at a position on one side edge of the part after brazing is completed.

The specific contents of the present invention will be explained below based on the illustrated embodiments. 2. There is a pair of left and right! J1a, 1
It shows a tact conveyor wound around btTtl, and the conveyor 2 is integrally equipped with small parts holding arms 5 having V-shaped h4 at equal intervals and with holding holes 5a facing the V-shaped grooves 4. The receiver has a plurality of parts 3, and two or more parts 3 are arranged in parallel in a symmetrical manner in the left-right direction, respectively, in accordance with the brazing position of the pipe.

The conveyor 2 is rotated counterclockwise in FIG. 1 by a drive mechanism (not shown), and in the case of this embodiment, the adjacent receivers move by the distance between the parts 3, pause for a certain period of time, and then move by the same distance again. The structure is such that it repeats a cycle of pauses.

Using the V-shaped groove 4, the pipe P, which is the object to be brazed, is sequentially moved by the shilling -7 and the pipe is moved by the abutting plate 6. After fixing the installation position 1ff of P, the small part P□ to be brazed is fitted into the holding hole 5a of the small part holding arm 5, and is held between it and the outer peripheral surface of the pipe P. Let's do it.

The held pipe P temporarily stops at a position where it has advanced three steps, and during this time, the periphery of the small part P□ set on the pipe P at the brazing position is heated by the burner device 8.

That is, the burner device 8 consists of a fire pit 8a and a copper vibrator 8b, and by arbitrarily bending the copper pipe 8b, each vent 8a can discharge flame evenly around the circumference of the small part P1. Moreover, its base is connected to the supply pipe 8c.

Furthermore, the supply vibrator 8c is held by a swing holding mechanism shown in FIG.

That is, the mechanism causes the holding part 9 to tighten and hold the supply vibrator 8c on the arm 10 with the tightening screw 11, and
The arm 10 is movably held through the vibrator P installed between the parts 3 and 3 along two bars 138 and 13b fixed to the support 12 so as to be made of raw bamboo. The upper end portion is fixed to a swinging rod 17 with a bolt 14 via a stopper fitting 15 and a set screw 16.

(One end of 4i11J rod 17 is universal joint 1.
The rod end 19 is rotatably connected to the upper end surface of the crankshaft 2o at a position offset from the center thereof via a pin 19a. Note that 2o is a motor for driving the crankshaft 20, and is fixed to the support column via a support plate 22.

Further, reference numeral 23 denotes a feeder, which approaches the heated brazing location to supply a linear brazing material 23a, and retreats again after brazing is completed.

Reference numeral 24 denotes a pushing means, which is attached so as to be able to move forward and backward in the longitudinal direction of the vibrator P by utilizing the expansion and contraction action of the cylinder 25, and is thereby able to push out the vibrator P that has completed the brazing work a certain distance in the longitudinal direction. .

In the above configuration, the V-shaped groove 4.4 of the receiver VA3.3
After horizontally hanging the vibrators P that should not be soldered one by one using the
A is inserted and held between the vibrator P and the outer circumferential surface of the vibrator P, and then sequentially sent toward the burner device @8a. The vibrator P located directly below the burner unit R8 is heated by injecting fire from the burner unit N8 to the brazing moxibustion position.At this time, when the drive motor 21 is activated at the same time, the crankshaft 20 The rod end 19 attached to the eccentric position as the rod rotates as the swing rod 17 rotates.
is reciprocated along the longitudinal direction of the vibrator P, thereby causing the holding arm of the burner 8 to repeatedly reciprocate over a certain distance along the longitudinal direction of the object to be brazed, and thereby This heats the periphery uniformly.

Further, FIG. 4 shows a partially deformed structure of the small component holding arm 5, in which the holding arm 26 having a holding hole 26a at its tip has its base 26b in an oblique direction as shown in the figure. The structure is such that it can be slid on the mounting jig 27, and is slidably fitted into the sliding groove 28 of the mounting jig 27.
By interposing a spring 29 on the rear side of EfB 26b, the base EfB 26b is constantly biased toward the lower left in the figure.

Therefore, the small parts holding arm 26 having such a structure
For example, if the holding hole 26 close to the vibrator P is used,
Small in a! ! This not only simplifies the work of fitting the lJ part P1, but also when the burner 8 heats the small part P1 to the center of the vibrator P, the vibrator P gradually attaches to the small part holding arm. After the holding arm 26 is bent toward the 26 side and comes into contact with the holding arm, the holding arm 26 can be made to escape backwards against the elastic force of the spring 29, so there is no risk of damaging the holding arm.

With the above-described configuration, the present invention significantly simplifies the brazing work of small parts that are attached to the vibrator G, does not require special skill, improves the work environment, and heats the parts to be brazed. As a result, the uniformity of brazing is maintained, and it has beneficial effects such as being suitable for mass production.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the main parts of a brazing device that is an embodiment of the present invention, Fig. 2 is a partially enlarged perspective view of the burner (heated part), and Fig. 3 is a holding and swinging mechanism for the burner. Fig. 4 is an enlarged sectional view of another small parts holding arm. 2... Tact conveyor, 3... Receiving section, 4... V
5...Small parts holding arm,
5a... Holding hole, 6... Abutting plate, 7
... cylinder, 8... bar +-it, 10...
Arm, 12-O-post, 13a, 13b
--- Bar, 17... Swinging rod, 19... Lot end, 19a... Bin, 20--
, crankshaft. No. 21...motor, 23...gum. 24... Extrusion means, 25... Cylinder, 26
...Holding arm, 27...iA, 28...Sliding groove, 29.0.Spring, Inventor: 2 Chi Sun Yi Patent applicant
Miyata Industries Co., Ltd.

Claims (6)

[Claims] (1) A conveyor that runs endlessly, a plurality of receivers attached to the conveyor for horizontally placing long objects to be brazed at predetermined intervals of rlJ1, and a receiver attached to the section. A long arm consisting of a small part holding arm that holds and holds a small W part in contact with the brazing part of the object to be brazed, and a burner device that heats and brazes the small part and the part to be brazed of the object to be brazed. Equipment for brazing small parts on large items. (2) A conveyor that runs endlessly, and a plurality of receivers that are attached to the conveyor to horizontally place long objects to be brazed at predetermined intervals. The receiver is attached to the brazing piece 9 of the brazing object.
A small part holding arm that holds a small part in contact with the holder, an abutting piece that faces the position where the object to be brazed is placed horizontally on one side edge of the part, and a holder that is located on one side of the part and facing the position where the object to be brazed is placed horizontally. A means for longitudinally moving a long object placed on a side edge at a position after completion of brazing, and a burner device for heating and brazing the brazing portion of the object to be brazed and small parts. A brazing device for small parts for long items consisting of. (3) 'f? Claim No. (1) (2J) In the burner device for heating and brazing the brazing portion of the object to be brazed and the small parts, the holding arm of the burner is positioned along the longitudinal direction of the object to be brazed. 1. An apparatus for brazing small parts for long objects, characterized by having means for repeating reciprocating motion over a certain distance along a direction. (4) In the item described in claims (1) to (3), the small part holding arm has a small part holding recess at a position facing the object to be brazed, and at least the holding recess has a small part holding recess. An apparatus for brazing small parts for long objects, characterized in that a part thereof is movable toward and away from an object to be brazed, and is always biased to approach the object to be brazed. (5) In the item described in claim (2), the abutting piece extends in the longitudinal direction of the object to be brazed in order to arbitrarily finely adjust the distance from the edge of the object to be brazed. A brazing device for small parts for long objects, which is characterized by being able to move forward and backward. (6) Claims (2) and (5) of the claim 8 provide that the means for moving the elongated object in the longitudinal direction is installed at a position close to one edge of the object to be brazed. 1. An apparatus for brazing small parts for long objects, characterized in that the long objects are pushed out in the longitudinal direction by a cylinder.