SU1355408A1 - Device for scraping bright the working faces of electrodes of resistance welding machines - Google Patents

Abstract

The invention relates to machine-building, in particular to the production of devices for stripping the working end of the electrodes of contact machines, and can find application in the manufacture of welded structures, | made by iKOHTaKTHoft spot welding. The aim of the invention is to simplify the design and operation. The lower electrode 13 enters the slot of the guide abutment 3. With further compression on the insert 2 and the guide abutment 3, a force acts along the axis of the electrodes. Under the action of a component force, directed along the contact surface of the insert 2 and the stop 3, the movable insert 2 will move. The cutting surface of the liner, which has a notch, will process the end of the electrode 8. To clean the working end of the electrode 13, the device is removed from the electrode 8, turned over and put on the electrode 13. Using the device allows you to quickly and accurately sharpen the working ends of the electrodes without the cost of manual labor and without the use of, an additional drive. 2 Il. (L south of the joint venture 4 O 00 fig, 2

Description

The invention relates to mechanical engineering, in particular to the production of devices for stripping the working ends of electrodes of contact machines, and may find application in the manufacture of welded structures made by resistance spot welding. The aim of the invention is to simplify the design and operation.

Figure 1 shows the device, a longitudinal section, the position before the start of the stripping of the upper electrode, figure 2 - the same, during the stripping.

The device consists of a housing 1 in which a movable liner 2, a guide stop 3 and a return spring D are placed in a sleeve 5, moving in a threaded sleeve 6 closed by a plug 7. The device is fixed on the electrode 8 by a rod 9 by means of a spring 10 The guide rest 3 is attached to housing 1 with screws 1-1.

The housing 1 is closed by the cover 12. The socket of the guide rest 3 is intended for insertion of the electrode 13, which is paired to be processed. In the wall of the housing 1 there is a hole 14 for chip removal.

The device works as follows.

To clean the working ends of the electrodes 8 and 13 of the resistance welding machine, switch off the welding current, install the stripping device on the upper electrode 8 and fix it with the rod 9,

When you press the pedal to turn on the welding cycle, the electrodes begin to die. The lower electrode 13 enters the slot of the guide abutment 3. Upon further compression on the insert 2 and the guide abutment 3, a force is directed along the axis of the electrodes. Under the action of the component force directed along the inclined contact surface of the insert 2 and the stop 3, the movable insert 2 moving, acting on the sleeve 5 and compressing the spring 4.

In this case, the cutting surface of the insert 2, which has a notch, interacts with the end face of the electrode 8, processing it. Due to the fact that the device is fixed to the electrode 8 by the rod 9, the treated surface of the working end will be strictly horizontal. Processing will occur

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continue until the movable insert 2 is abutted into the housing 1, after which the electrodes begin to unclamp. When the electrodes 8 and 13 are released, the movable insert 2 under the action of the spring 4 returns to its original position.

The whole cycle is repeated as many times as necessary until the end of the electrode 8 is completely stripped. After sharpening the electrode, shavings are poured through a special hole.

To clean the working end of the electrode 13, the device is removed from the electrode 8, turned over and put on, the electrode 13, while the electrode 8 enters the slot of the guide rest 3.

The remaining operations are also performed 5 as when processing the electrode 8.

The use of the invention allows sharpening the working ends of the electrodes quickly and efficiently without the cost of manual labor and without the use of an additional drive. The device has a simple design.

Claims (1)

Formula of (Gaining A device for stripping the working end of the electrodes of contact machines, comprising a housing with a hole for inserting the electrode to be processed, a movable insert with a cutting working surface mounted with the possibility of reciprocating movement in the direction perpendicular to the orifice and, simplification of the structure and operation, the body is made with a hole coaxially with the hole for insertion of the electrode to be treated, and is provided with a guide rest, made with an inclined surface, facing The hole to the electrode to be machined, and the blind hole located on the opposite side to accommodate the unworked electrode, coaxially to the holes in the housing, the insert is made with an inclined surface opposite to the cutting working surface, is spring-loaded in the direction of its reciprocating movement and installed in the housing with the possibility of interaction with its tactile surface with the inclined surface of the guide abutment. / FIG. one