JPS58199671A - Method of welding movable spring to terminal board - Google Patents

Abstract

PURPOSE:To improve easily the accuracy in positioning for welding, by positioning a terminal board and a movable spring respectively in the state of a terminal hoop and a movable spring hoop having pilot holes in the stage of welding. CONSTITUTION:A terminal hoop 1 and a movable spring hoop 2 are fed in the direction intersecting orthogonally with each other by utilizing pilot holes 12, 22, respectively and are positioned by means of positioning pins inserted into the holes 12, 22. One end of the hoop 2 and the part of the hoop 1 near the part where both are to be welded to each other are superposed by means of a pair of upper and lower dies which are both driven vertically and are held energized by means of springs in the directions where both are in contact with each other. A pair of upper and lower electrodes for welding sandwich and weld the movable spring 20 at one end of the hoop 2 and the terminal board 10 of the hoop 1 in the superposed state.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of welding a movable spring to a terminal plate, which is the next step in welding a movable spring to a terminal plate.

Generally, movable springs and terminal plates are formed by punching each from a metal plate, but in Karai, the terminal plates are continuously formed by first dividing the movable springs into individual movable springs and positioning them after transportation. The terminal hoop is welded in place. Secondly, the positioning and movement of the individual movable springs requires a complicated structure and is expensive, and the positioning accuracy is only about ±0.15 m.

The present invention has been developed in view of these points, and it is an object of the present invention to provide a method for welding a movable spring to a terminal plate, which can easily achieve high welding positioning accuracy (±0.05 .mu.).

To explain the present invention, the present invention provides a movable spring two' having a pilot hole and continuously forming a plurality of movable springs.
5 in one direction, and a terminal hoop in which a large number of terminal plates are successively formed with pilot holes is fed in a direction substantially perpendicular to the above direction, and the terminal hoop is moved to the terminal plate at the intersection of both feeds. The terminal during welding is characterized in that the movable spring at one end of the spring is welded, and then the welded movable spring in the movable spring hoop is removed from the movable spring hoop in the gap in the terminal. The positioning of the plate and movable spring is carried out with the terminal hoop and movable spring hoop each having a pilot hole, and after welding, the welded movable spring metal is separated so that the next positioning and welding can be carried out. The details will be explained below based on the drawings.As shown in Fig. 1, (1) terminal hoop,
(2) is a movable spring hoop, and a terminal hoop (1, 1 has a movable spring) is welded to the terminal board (1, 1) which serves as a common terminal to which a movable spring is to be welded.
101 and a terminal plate (11) which becomes a normally open or normally closed terminal that comes into contact with the movable contact sill at the open end of the movable spring are connected at both side edges and are alternately and continuously formed. Pilot holes 112J −/)i at regular intervals? It is set up. The terminal hoop (2) has movable spring pins formed in a continuous manner, and pilot holes are bored at regular intervals on the side edges, and pilot holes are drilled at regular intervals on the side edges of the terminal hoop (2). Spring 4 is connected. These naruko hoop (1) and movable screw hoop ('2)' are then fed in directions perpendicular to each other using pilot holes and screw holes, respectively, and as shown in FIG. 02
The molds (4) and (5) are positioned by a positioning biscuit (3) inserted into the mold 1, and the molds (4) and (5) are both driven vertically and are spring-biased in the direction of contact with each other. 5 so that one end of the movable spring hoop (2) and the terminal hoop f1+ overlap near the parts to be welded together, and in this overlapping state, the pair of upper and lower welding electrodes +61 and +7i are Then, the movable spring (2o) at one end of the movable spring hoop (2) and the terminal plate (lO) of the terminal hoop (1) are sandwiched and welded. The welding location is indicated by (8) in the figure. When this welding is completed, the cutting pusher (9) is then lowered to connect the terminal hoop i.
The connected portion of the movable spring head located in the punched gap 03) at 1 is cut between it and the mold (5), and the welded movable spring head is separated from the movable spring hoop (2). After this, the mold +n t5; is carefully moved up and down, and the positioning screw (3) is also lowered to feed the terminal hoop (1) and the 7-movement spring hoop (2) one pitch each. Further, positioning by the positioning screw (3), clamping of the terminal tool (tl) and the movable spring hoop (2) by the mold f4) (6), welding, and cutting are performed in sequence.

For manufacturing reasons, if you have to individually separate and weld the movable spring (201t) to the terminal plate (10), which has already been molded with the molded body 05)K, do the following. In other words, as shown in Fig. 3, a pair of Ishijiku Starshita tables (11 (i7)) are provided which are driven to rotate intermittently around axes that are perpendicular to each other, and one Ishijiku Starshita table (11 (i7)) is provided. Classic 419 that holds the chuck that holds Haneya (beak, body α5 on the other y9 starship table Uη)
1, a number of each are provided. And the spring and syringe ■1
), the movable spring 4) held by chuck 08I, which is opened and closed by By moving forward with the end of the chuck through the C force, insert 6 between the normally open terminals in the body 05) and overlap one end with the terminal plate (lO), and place a welding electric rod (not shown) ) to connect the movable spring and terminal board (10
+, and after welding is completed, pre-rotate both Ishidex star table U clause (+7i by 1 h・ν) and then weld the movable spring force held at the end of the next chuck and the next clamp "j" (I9 )
The terminal plate (1O) of the body 1J5) held by the terminal plate (lO) is welded to the body 1J5). If the Classic 09) is capable of holding two body hazes at the same time as shown in Figure 4, and the chuck 08) is also capable of holding two movable springs ■ as shown in Figure 5, then this The feature of Ishijik Starshi Table OQOη is that it has multiple chuck ends and Clasive 0! Movable spring by lI
In conjunction with continuous supply to the welding position of and body 05),
This will greatly improve processing power.

As described above, the present invention supplies the terminal hoop and the movable spring to the welding position in the form of a terminal hoop and a movable spring, each of which has a pilot hole, and whose feeding directions are substantially orthogonal to each other. Since the welded movable spring is separated immediately after welding, feeding and positioning are easy and the positioning accuracy is extremely high.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an example of the terminal hoop and movable spring hoop in the present invention, Fig. 2 is a sectional view showing an example of the welding and cutting device same as above, and Fig. 3 is a plan view showing an example of the terminal hoop and movable spring hoop in the present invention. FIG. 4 is a front view of the above clamp, and FIG. 5 is a perspective view of the child jack. (1) is a terminal hoop, (2) is a movable spring hoop, #'i terminal board, 0 is a pilot hole, 0
The tassel indicates a void, the minus symbol indicates a movable spring, and the solid symbol indicates a pilot hole. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] (1) A movable spring hoop with a pilot hole and a large number of movable springs continuously formed is sent in one direction, and a large number of terminal plates with pilot holes are successively formed, and the next terminal hoop is fed in one direction. The movable spring at one end of the movable spring hoop is welded to the terminal plate of the terminal hoop at the intersection of both feeds, and then the welded movable spring in the movable spring hoop is A method for welding a movable spring to a terminal plate, which is characterized by separating the movable spring from the movable spring.