JPS59147785A - Resistance welding method - Google Patents

Abstract

PURPOSE:To improve productivity by holding a cap with a clamping device and positioning an electronic part when the lead wires of a base are inserted into the lead wire inserting port of the lead wires of a lower electrode while the welding part of the electronic part is brought into contact with the base. CONSTITUTION:When lead wires 5 are inserted into the lead wire inserting port 9 of lower electrode 2 while the welding point of a base 4 is brought into contact with the welding point of a cap 6, a clamping device 10 operates to hold the cap 6 of a crystal vibrator 3 thereby positioning the vibrator 3. Then an upper electrode 1 lowers and at the same time, the cap 6 is inserted into the cap inserting port 11 formed to the electrode 1. The device 10 detaches from the cap 6 in succession and the base 4 of the vibrator 3 and the cap 6 are welded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resistance welding method for welding the base and cap of an electronic component. Conventionally, when welding the base and cap of an electronic component such as a crystal oscillation element, the method shown in FIG. upper electrode 1
Make the distance between the lead wire 5 and the lower electrode 2 shorter than the length of the lead #5 provided on the crystal oscillation element 60 pace 4, and first connect the lead wire 5 with the welded parts of the base 4 and the welded parts of the cap 6. Insert the upper part into the lead wire insertion lower formed in the pole 1, then insert the cap 6 of the crystal oscillation element 6 into the camp insertion hole 8 formed in the lower electrode to fix the crystal oscillation element 6, and then After one electrode was lowered, upper electrode 1 and lower electrode 2 were used to apply pressure to the crystal oscillator element and weld.

However, in this conventional welding method, when the lead wire 5 is bent, it takes time and effort to insert the lead wire 5 into the lead wire insertion lower, which is very inefficient.

The present invention provides a novel resistance welding method that eliminates all of the above drawbacks.

FIG. 2 is a diagram for fully explaining one embodiment of the present invention. In the figure, the distance between the upper side 1 and the lower electrode 2 is set to be sufficiently longer than the length of the cap of the all-crystal oscillation element 6. First, the welding part of the base 4 and the bath contact part of the cap 6 and all contacts ζ
When the lead wire 5 is inserted into the lead wire insertion opening 9 formed in the lower part 7112 while holding the lead wire 5, the clamp device 10 operates to grip the cap 6 of the crystal oscillation element 6 and position the crystal oscillation element 3. Next, the pole 1 moves on the upper part and begins to descend, and eventually the cap insertion opening 1 formed in the upper electrode 1
The camp 6 of the crystal oscillation element 6 begins to be inserted into the cap 1, and when the cap 6 is inserted halfway into the cap insertion opening 11, a protection circuit (not shown) operates and the clamp device 10 closes the crystal oscillation element. Stay away from 6. Next, the crystal oscillation element 3 is pressurized by the upper electrode 1 and the lower electrode 2 to completely weld the base 4 and the cap 6 together. In this way, in the resistance welding method of the present invention, it is extremely easy to position the crystal oscillation element 6 to the predetermined location of the lower electrode 20, and the predetermined welding is automatically performed after positioning the crystal oscillation element, thereby increasing efficiency. The time required for very good welding work can be shortened and productivity can be improved. In particular, it is not necessary to insert the crystal oscillation element 6 into both the gold upper electrode 1 and the lower electrode 20 as in the conventional case, and the length is sufficient to insert it into the lower electrode 2.
By adding it to the pressure-receiving electrode part of a turntable type automatic welding machine, etc., the electrode structure can be completely simplified.

In the above embodiments, a crystal oscillation element was described as an electronic component to be welded, but the same method can be applied to other electronic components.

As described above, the present invention provides a resistance welding method for welding the base and cap of an electronic component, in which the lead wire of the base is inserted into the lead wire insertion hole formed in the lower electrode while contacting all the welding points of the electronic component. When inserted, the clamp device first grasps the cap and positions the electronic component, then the upper electrode is lowered and the cap is inserted into the cap insertion opening formed in the upper electrode, and then the clamp device This is a resistance welding method characterized in that the base of the electronic component is completely welded to the cap while the base of the electronic component is separated from the cap. Since the present invention has all of these features, it is extremely easy to position all the lower electrodes of the electronic component at predetermined locations, and efficiency is greatly improved, making it possible to improve productivity.

In particular, if it is added to the pressure-receiving electrode part of a T-N type automatic welding machine, etc., the electrode structure can be completely simplified.

[Brief explanation of the drawing]

FIG. 1 is a diagram for explaining a conventional resistance bath welding method, and FIG. 2 is a diagram for explaining an embodiment of the present invention. 142. Upper electrode 2...lower electrode 6...
Crystal oscillation element 4...Base 5...! J-Do 8
6...Cap 7.9...Lead wire insertion port 8.11...Cap insertion port 10...Clamp device Patent applicant Origin Electric Co., Ltd. No. 2 Figure 1

Claims (1)

[Claims] In the resistance welding method for welding the base and cap of an electronic component, when the electronic component is inserted into the lead wire insertion hole formed in the lower part of the lead wire assembly of the base while keeping the welded parts of the electronic component in contact with each other, the lead wire is first clamped. The device grips the cap and positions the electronic component, and then the upper electrode is lowered and the cap is inserted into the cap insertion opening formed in the upper electrode, and then the clamp device locks the electronic component in place. A resistance welding method characterized by welding the base and cap of an electronic component apart from each other.