CN202240131U

CN202240131U - Capacitor and electrode tip connecting structure of capacitor type spot welder

Info

Publication number: CN202240131U
Application number: CN201120351977XU
Authority: CN
Inventors: 黄宏友; 曾铭智
Original assignee: SHENGQUAN CO Ltd
Current assignee: SHENGQUAN CO Ltd
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2012-05-30
Anticipated expiration: 2021-09-15

Abstract

The utility model discloses a capacitor and an electrode tip connecting structure of a capacitor type spot welder, wherein the positive electrode of a first capacitor is connected with a first electrode tip, the negative electrode of the first capacitor is connected with a second electrode tip, the positive electrode of the second capacitor is connected with a second electrode tip, the negative electrode of the second capacitor is connected with the first electrode tip, conduction switches are arranged on the outputs of the positive electrodes of the first capacitor and the second capacitor, and discharging spot welding operation is executed under the control of a driver module; the driver module controls the conduction switch of the first capacitor, so as to enable electric energy to be discharged by the first electrode tip and flow back to the first capacitor to accomplish the first time spot welding operation, and then the conduction switch of the second capacitor is controlled so as to enable the second electrode tip to discharge and flow back to the second capacitor through the first electrode tip. Therefore, the function of spot welding in the negative direction of the first time spot welding operation can be achieved.

Description

The electric capacity of condenser type spot welding machine and electrode tip syndeton

Technical field

The utility model relates to a kind of condenser type spot welding machine, relates in particular to a kind of electrode tip interlace conversion polarity of utilizing and carries out spot welding, to solve electric capacity and the electrode tip syndeton that positive and negative electric flux difference produces the condenser type electric welding machine of the problem that spot size differs.

Background technology

Capacitor discharge welding is meant that utilization stores up the energy in capacitor lentamente from power supply; And directly weld to the welded piece discharge through electrode tip at short notice by capacitor; Its principle is carried out the short time welding for the big electric current of utilization, and heating concentrates characteristic to make the external form of electrode tip good and more not yielding.Capacitor discharge welding requires little to power supply capacity, when welding same material and structure, required power supply capacity is merely 1/10th of AC resistance electric welding machine, and is less relatively to the impact of electrical network, and can effectively utilize electric power, to reach purpose of power saving.

See also Fig. 1 and shown in Figure 2; Capacitor discharge welding is in pinpoint welding procedure, by the electric energy of positive electricity cartridge 91 output capacitances 9, and is back to electric capacity 9 through negative electricity cartridge 92 and does disposable spot welding; It accounts for 70% electric energy through positive electricity cartridge 91; Negative electricity cartridge 92 about 30% electric energy so the heat energy of the energy generation inequality of positive electricity cartridge 91 and negative electricity cartridge 92 is also different, make the solder joint 93 of positive and

negative electrode head

91,92 that situation not of uniform size arranged.See also the parallel spot welding that is shown in Figure 1, the problem of these solder joint 93 sizes can influence the attractive in appearance and welding quality of product.See also the vertical spot welding that is shown in Figure 2, the 94 overlapping welding of two weldering plates are fixed, be adhesively fixed so that solder joint 93 is fused mutually, and the solder joint 93 cementation areas that cause not of uniform size are unequal, remote-effects are to the soundness of welding.

In view of this, the applicant still has the great space of improving to aforesaid drawbacks, and further investigation design and improvement obtain a kind of condenser type spot-welded structures practical and convenience that has concurrently.

The utility model content

The purpose of the utility model provides a kind of electric capacity and electrode tip syndeton of condenser type spot welding machine, to solve the potential difference of prior art positive electricity cartridge and negative electricity cartridge in pinpoint welding procedure, and the problem that causes the spot size of positive and negative electrode head to differ.

For reaching the main purpose of the utility model, the technical scheme that is adopted is:

A kind of electric capacity of condenser type spot welding machine and electrode tip syndeton comprise:

One first capacitor, in order to receive the input power supply with store electrical energy, its positive electrode connects first electrode tip, and negative electrode connects the spot welding operation of discharging of second electrode tip; And

One second capacitor, in order to receive the input power supply with store electrical energy, its positive electrode connects second electrode tip, and negative electrode connects the spot welding operation of discharging of first electrode tip.

According to the electric capacity and the electrode tip syndeton of the described condenser type spot welding machine of the utility model, wherein: the positive electrode output of said first capacitor and second capacitor also is provided with an actuating switch.

According to the electric capacity and the electrode tip syndeton of the described condenser type spot welding machine of the utility model, wherein: also comprise one in order to set and the driver module of controlling this actuating switch, it is connected with this actuating switch.

Owing to adopted above technical characterictic, make the utility model than prior art, have following advantage and good effect:

Condenser type spot welding machine electric capacity that the utility model provides and electrode tip syndeton; When carrying out the spot welding operation; The actuating switch that driver module is controlled first capacitor is conducting state, makes the electric energy of first capacitor be transferred to assembly to be welded by first electrode tip, is back to first capacitor to accomplish the operation of spot welding for the first time through second electrode tip again; This driver module begins to count the blanking time of actuating switch start; After counting finishes, carry out the spot welding operation second time, the actuating switch that driver module is controlled second capacitor is conducting state, makes the electric energy of second capacitor be transferred to assembly to be welded by second electrode tip; Be back to second capacitor through first electrode tip again, to reach the function of carrying out spot welding in the other direction with the operation of spot welding for the first time.First, second electrode tip interlace conversion polarity of the utility model utilization is carried out spot welding to solve positive and negative end pad situation not of uniform size with same potential, and its integral body is convenient more in the execution utilization.

Description of drawings

Fig. 1: be the parallel spot welding work sketch map of prior art capacitor discharge welding;

Fig. 2: be the vertical spot welding work sketch map of prior art capacitor discharge welding;

Fig. 3: be the parallel spot welding Organization Chart of the utility model;

Fig. 4: be the spot welding work first time sketch map of the utility model;

Fig. 5: be the spot welding work second time sketch map of the utility model;

Fig. 6: be the vertical spot welding work sketch map of the utility model.

The specific embodiment

See also shown in Figure 3ly, the utility model is a kind of electric capacity and electrode tip syndeton of condenser type spot welding machine, and it comprises:

One first capacitor 1; It is in order to receive input power supply 7 with store electrical energy; The positive electrode 11 of this first capacitor 1 connects first electrode tip 3, and negative electrode 12 connects second electrode tip 4, also is provided with actuating switch 13 between its positive electrode 11 outputs and first electrode tip 3 with control discharge spot welding operation.

One second capacitor 2, it receives input power supply 7 with store electrical energy, and the positive electrode 21 of this second capacitor 1 connects second electrode tip 4, and negative electrode 22 connects first electrode tip 3, also is provided with actuating switch 23 between its positive electrode 21 outputs and second electrode tip 4.

One driver module 5; It is connected with above-mentioned

actuating switch

13,23; This driver module 5 is a microcomputer control unit; This microcomputer control unit adopts programmable logic controller (PLC), and (Programmable LogicController PLC), imports power supply 7 voltages in order to setting and the ON time of

control actuating switch

13,23, the blanking time and the adjustment of

actuating switch

13,23 actions.

See also shown in Figure 4; The utility model is when carrying out parallel spot welding operation; When first capacitor 1 and second capacitor, 2 store electrical energy reach the setting of driver module 5, first electrode tip 3 and second electrode tip 4 are fixed on the assembly 6 to be welded, the actuating switch 13 of its driver module 5 controls first capacitor 1 is conducting state; Make the electric energy of first capacitor 1 be transferred to assembly 6 to be welded by first electrode tip 3; Be back to first capacitor 1 to accomplish the operation of spot welding for the first time through second electrode tip 4 again, its driver module 5 begins to count the blanking time of

actuating switch

13,23 actions, after counting finishes, carries out the spot welding operation second time.See also shown in Figure 5; The actuating switch 23 of driver module 5 controls second capacitor 2 is conducting state; Make the electric energy of second capacitor 2 be transferred to assembly 6 to be welded by second electrode tip 4; Be back to second capacitor 2 through first electrode tip 3 again, thereby reach the function of carrying out spot welding in the other direction with the operation of spot welding for the first time.

See also shown in Figure 6ly, the utility model can be fixing with 6 welding of two assemblies to be welded through vertical spot welding, and its solder joint 61 sizes are identical, can strengthen the stable degree of welding so that the area of molten cementation is average mutually.

In sum; The utility model uses first electrode tip 3 and second electrode tip, 4 interlace conversion polarity; Make solder joint 61 all carry out spot welding through same potential; To solve positive and negative end pad 61 situation not of uniform size, help to improve the attractive in appearance and welding quality of 61 pairs of products of solder joint, it is whole implements utilization and goes up convenient.

Claims

1. the electric capacity of a condenser type spot welding machine and electrode tip syndeton is characterized in that: comprising:

One first capacitor, in order to receive the input power supply with store electrical energy, its positive electrode connects first electrode tip, and negative electrode connects second electrode tip; And

One second capacitor, in order to receive the input power supply with store electrical energy, its positive electrode connects second electrode tip, and negative electrode connects first electrode tip.

2. the electric capacity of condenser type spot welding machine according to claim 1 and electrode tip syndeton, it is characterized in that: the positive electrode output of said first capacitor and second capacitor also is provided with an actuating switch.

3. the electric capacity of condenser type spot welding machine according to claim 2 and electrode tip syndeton is characterized in that: also comprise one in order to set the driver module with this actuating switch of control, it is connected with this actuating switch.