JPH079576U - Electrode cleaner with tip guide - Google Patents

Abstract

(57) [Summary] [Purpose] To easily and efficiently remove deposits on the electrode surface in a short time to finish the surface cleanly, improve welding quality, extend the life of the electrode and improve economic efficiency. An electrode cleaner with a tip guide is provided. [Structure] A polishing rotary member 4 having a polishing paper 5 is supported by a rotary shaft 3 on an electrode cleaner body 1 with a tip guide. The electrode guide 6 is attached to the electrode cleaner body 1 with a tip guide. A guide hole 10 is formed in the electrode guide 6 to regulate the position of the electrode so as not to be displaced while being in contact with the polishing paper 5 of the rotating polishing body 4 that rotates the electrode. The electrode guide 6 is configured such that the center of the electrode coincides with the center of the polishing rotor 4 or is eccentric. As an example thereof, guide holes 10a and 10b are formed in the electrode guide 6, or one guide hole 10 is formed.
The electrode guide 6 having the above is attached so as to be adjustable in position, or supported by a gear mechanism so as to perform a crank motion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electrode cleaner with a tip guide used for resistance spot welding in which metal steel plates are superposed and welded to clean the surface of the electrode.

[0002]

[Prior art]

 In conventional spot welding, metal steel sheets are superposed and sandwiched by a pair of electrodes, and welding current is applied to both electrodes while pressing both electrodes. If oxide or the like that induces electrode wear is attached to the surface of the electrode used for this resistance spot welding, it is necessary to remove the attached substance and clean it.

Conventionally, an electrode polishing device or an electrode shaping device is used to remove the deposits on the surface of the electrode as described above.

[0004]

[Problems to be solved by the device]

 However, in the conventional electrode polishing device and electrode shaping device, the polishing portion and the shaping cutting portion are formed so as to be coincident with the center of the electrode tip portion, and moreover, to match the electrode tip shape. Therefore, even if there is a small amount of deposits on the surface of the electrode, and even if it is localized, it is necessary to polish or shape unnecessary parts according to the shape of the electrode to remove it. . Therefore, not only is it time-consuming to remove the deposits, but the electrodes are wastefully consumed, which is uneconomical. In addition, since it is limited to polishing or shaping a certain shape, there is a problem that a dedicated tool that matches the shape of the electrode is required.

The present invention solves the above-mentioned conventional problems, and the deposits on the electrode surface can be removed easily and efficiently in a short time to finish the surface cleanly. The purpose of the present invention is to provide an electrode cleaner that can improve the welding quality by cleaning the electrode to a minimum level, and at the same time, prevent wasteful consumption of the electrode to prolong the service life and improve the economical efficiency. It is what

[0006]

[Means for Solving the Problems]

 The technical means of the present invention for achieving the above-mentioned object is to prevent an electrode cleaner body having a rotating function of an electrode cleaning function from being rotatably provided, and an electrode cleaner body from being displaced in a state where the electrode is in contact with the rotating body. And an electrode guide having a guide hole for position regulation, the electrode guide being configured so that the center of the electrode coincides with the center of the rotating body or is eccentric.

Then, the guide hole of the electrode guide is formed at a position coinciding with the center of the rotating body and an eccentric position, or the electrode guide is attached to the electrode cleaner main body in a positionally adjustable manner. The center is made to coincide with or eccentric to the center of the rotating body, or the electrode guide is continuously driven by the driving means so that the center of the guide hole is made to coincide with or eccentric to the center of the rotating body. can do .

[0008]

[Action]

 With this configuration, the electrode having an oxide or the like attached to the tip surface is inserted into the guide hole of the electrode guide so that the centers of the electrodes and the rotating body having the electrode cleaning function are rotating. Alternatively, by contacting so as to be eccentric, the deposits on any part of the surface of the tip can be removed from the rotating body. Then, by inserting the electrode into the guide hole of the electrode guide, it is possible to prevent the electrode from slipping while it is in contact with the rotating body, so that the deposits on the electrode surface can be removed easily and efficiently in a short time. The surface can be finished cleanly.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. First, a first embodiment of this invention will be described. FIG. 1 (a) is a plan view showing a first embodiment of the electrode cleaner of the present invention, and FIG. 1 (b) is a partial cutaway side view showing the electrode cleaner.

As shown in FIGS. 1 (a) and 1 (b), in the electrode cleaner body 1, the rotary shaft 3 is projected upward at the end of the case 2, and the polishing rotary body is attached to the projected end of the rotary shaft 3. 4 are integrally provided. The polishing rotator 4 has on its upper surface a polishing paper 5 for polishing and removing deposits on the tip surface of an electrode (not shown) to finish it clean. A drive device (not shown) is housed in the case 2, and the rotary shaft 3 and the polishing rotator 4 can be rotated by the drive device.

Electrode guides 6 are attached to the case by screws 9 so as to cover the polishing rotor 4 by using attachment holes 7 and 8 formed on both short side edges thereof. Two guide holes 10 a and 10 b are formed on the polishing rotator 4 in the middle of the electrode guide 6. Both guide holes 10a and 10b are formed so as to have a diameter slightly larger than the electrode diameter, and one guide hole 10a is formed at a position where the center thereof coincides with the center C of the polishing rotor 4 and the other guide hole 10a. 10b is formed at a position eccentric from the center of the polishing rotator 4 at a distance L, and both guide holes 10a and 10b have a shape in which a part thereof overlaps.

In the above-mentioned configuration, the usage procedure will be described below. The rotating shaft 3 and the polishing rotator 4 are rotated by a driving device, and the electrode having an oxide or the like attached to the tip surface is inserted into the guide hole 10a or the guide hole 10b, and the center of the electrode is the center of the polishing rotator 4. To contact the polishing paper 5 so that the center of the electrode is eccentric from the center of the polishing rotator 4 and contact the polishing paper 5. At this time, since the electrode is supported by the guide hole 10a or 10b, the blur due to the rotation of the polishing rotator 4 is prevented, and the displacement is prevented. Then, the electrode is inserted into the guide hole 10b, decentered from the center of the polishing rotator 4 and brought into contact with the polishing paper 5, so that the adhered matter at the center of the tip of the electrode can be satisfactorily polished and removed. On the other hand, the electrode is inserted into the guide hole 10a and brought into contact with the polishing paper 5 so as to be aligned with the center of the polishing rotator 4, so that the tip surface of the electrode is uniformly polished to remove deposits and clean. It can be finished in a perfect state.

Next, a second embodiment of the present invention will be described. FIG. 2 (a) is a plan view of an essential part showing a second embodiment of the electrode cleaner of the present invention, and FIG. 2 (b) is a cutaway side view of the essential part showing the electrode cleaner.

In this embodiment, as shown in FIGS. 2 (a) and 2 (b), one guide hole 10 is formed in the electrode guide 6, and mounting holes 7a and 7b are formed at two positions on one side. A mounting hole 8 consisting of an elongated hole is formed on the other side, and either one of the mounting hole 7a or 7b and the mounting hole 8 is selectively mounted to the case 2 by a screw 9. As a result, the guide hole 10 is arranged so that its center coincides with the center of the polishing rotator 4, or is arranged so as to be eccentric from the center of the polishing rotator 4 by a distance L, and the position can be adjusted. It was done. The rest of the configuration and the usage procedure are the same as those of the first embodiment, so the description thereof will be omitted.

Next, a third embodiment of the present invention will be described. FIG. 3 (a) is a plan view of the essential parts showing a third embodiment of the electrode cleaner of the present invention, and FIG. 3 (b) is a partially cutaway side view of the essential parts showing the same electrode cleaner.

In this embodiment, as shown in FIGS. 3 (a) and 3 (b), the polishing rotary member 4 is formed in the shape of a gear having a large number of teeth 11 on the outer circumference, and the polishing rotary member 4 has a case. The spur gear 12, which is rotatably supported by 2, is engaged with each other, one guide hole 10 is formed in the middle portion of the electrode guide 6, and the guide hole 13 formed of an elongated hole is formed on one short side edge side. A connecting hole 15 is movably supported by a guide pin 14 protruding from the case 2, and a connecting hole 15 formed on the other short side edge side of the electrode guide 6 is connected to a connecting pin 16 projecting at an eccentric position of the spur gear 12. ing. Then, the spur gear 12 is rotated by the rotation of the polishing rotator 4, and the eccentric rotation of the connecting pin 16 causes the electrode guide 6 to be cranked by guiding its guide hole 13 by the guide pin 14. The hole 10 is configured to be continuously moved between a position where its center coincides with the center of the polishing rotary member 4 and a position eccentric from the center of the polishing rotary member 4 by a distance L. The moving frequency of the guide hole 10 is determined by the gear ratio between the spur gear 12 and the toothed polishing rotary body 4, and the moving distance of the guide hole 10 is the mounting position of the connecting pin 16 (from the center of the polishing rotary body 4). Distance). The rest of the configuration and the usage procedure are the same as in the first embodiment described above, so a description thereof will be omitted.

[0017]

[Effect of device]

 As described above, according to the present invention, the electrode with the oxide or the like attached to the tip surface is inserted into the guide hole of the electrode guide, and the center of both is aligned with the rotating body having the electrode cleaning function that rotates the electrode. By making contact with each other in an eccentric or eccentric manner, the attached matter on any part of the tip surface can be removed by the rotating body. Then, by inserting the electrode into the guide hole of the electrode guide, it is possible to prevent the electrode from slipping while it is in contact with the rotating body, so that the deposits on the electrode surface can be easily and efficiently in a short time. It can be removed to clean the surface. Therefore, it is possible to improve the welding quality by cleaning the electrode surface at an early stage, prevent wasteful consumption of the electrode, and prolong the service life and improve the economical efficiency. In particular, electrodes used for spot welding of plated steel sheets and aluminum alloys have a high frequency of plating and oxide adhesion, so they are effective when used for clean finishing of these electrodes.

[Brief description of drawings]

FIG. 1A is a plan view showing a first embodiment of an electrode cleaner with a tip guide of the present invention. (B) is a partially cutaway side view showing the electrode cleaner with a tip guide.

FIG. 2 (a) is a plan view of essential parts showing a second embodiment of the electrode cleaner with a tip guide of the present invention. (B) is a partially cutaway side view showing the electrode cleaner with a tip guide.

FIG. 3 (a) is a plan view of essential parts showing a third embodiment of the electrode cleaner with a tip guide of the present invention. (B) is a partially cutaway side view showing the electrode cleaner with a tip guide.

[Explanation of symbols]

 1 Electrode Cleaner Main Body 2 Electrode Main Body Case 3 Rotating Shaft 4 Polishing Rotating Body 5 Polishing Paper 6 Electrode Guide 7, 7a, 7b Mounting Hole 8 Mounting Hole 9 Screw (Bolt) 10 Guide Hole 10a Guide Hole (Rotation Center Position) 10b Guide Hole (Position decentered from the center of rotation) 11 Toothed rotating body 12 Spur gear 13 Elongated hole (guide hole) 14 Guide pin 15 Connecting hole 16 Connecting pin C Center of polishing rotating body

Claims (4)

[Scope of utility model registration request] 1. An electrode cleaner body in which a rotating body having an electrode cleaning function is rotatably provided, and an electrode having a guide hole for regulating a position of the electrode so as not to shift when the electrode is in contact with the rotating body. An electrode cleaner with a tip guide, wherein the electrode guide is configured so that the center of the electrode coincides with the center of the rotating body or is eccentric. 2. The guide hole of the electrode guide is formed at a position where it coincides with the center of the rotating body and an eccentric position.
Electrode cleaner with the described tip guide. 3. The electrode cleaner with a tip guide according to claim 1, wherein the electrode guide is attached to the electrode cleaner main body so that the center of the guide hole coincides with the center of the rotating body or is eccentric to the electrode cleaner body. 4. The electrode cleaner with a tip guide according to claim 1, wherein the electrode guide is continuously driven so that the center of the guide hole coincides with the center of the rotating body or is eccentric.