RU182139U1 - MILLING NUT FOR ANGULAR GRINDING MACHINE - Google Patents

Abstract

The utility model relates to devices that provide the operation of angle grinders (angle grinders). With its help, a cutting tool or grinding discs are fixed.

Due to the application of a layer of abrasive material on the end surface of the clamping nut-mill, the material is cut and grinding is performed without changing the tool. On the side surface of the nut-cutter there are recesses for the convenience of loosening the nut-mill by the hand of the operator, as well as holes for unscrewing the nut-mill with the help of a hand tool.

The combination of the functions of a clamping nut and a mill in one part allows two different operations, namely cutting and grinding, to be performed without changing the working tool.

This provides significant time savings on preparatory operations associated with the change of tool. That is, immediately after the operation of cutting the material, without removing the cutting disc with the angle grinder, an operation is performed to grind the surface of the material using the applied layer of abrasive material on the end surface of the nut-cutter. Then again, without changing the tool, you can perform a cutting operation.

The utility model is manufactured and tested at DI-STAR LLC.

Production is being prepared for the serial production of a clamping nut-mill for an angle grinder.

Description

1. The technical field

The utility model relates to devices that provide the operation of angle grinders (angle grinders). With its help, a cutting tool or grinding discs are fixed. At the moment when the clamping nut is put on the spindle, one part is pressed against the disk, and the other part rotates, forcing the bottom of the nut to press the disk more and more (https://storgom.ua/novosti/vse-o-prizhimnyh-gaikah-u- bolgarok-osobennosti-raznovidnosti-minusy-i-preimushchestva.html).

2. The level of technology

Angle grinder using cutting wheels provides the operation of cutting ceramic tiles, granite, marble, artificial stone and other materials. When cutting on the surface of the material being cut, chips, bumps are formed, which are leveled by grinding with the help of mills.

After cutting the angle grinder material, for installing the mill in the angle grinder, the cutting disc is removed and the mill is fixed using the angle grinder. The clamping nut is self-tightening. After the lower surface of the clamping nut is in contact with the fixed tool, further tightening of the clamping nut occurs during rotation of the tool in the angle grinder. Unscrew the nut using a special key.

The prototype is the design of a clamping nut manufactured by Makita. Typically, the clamping nut has a diameter of 45 mm.

Figure 1 shows an image of a Ml4 nut manufactured by Makita, which is similar to most clamping nuts that are made for angle grinders with Ml4 spindle threads (http://www.toool.ru/catalogue/zajimnie_gaiki_dlya_ushm/). Using a special key, which is inserted into the holes on the surface of the nut (1, Figure 1), the clamping nut is unscrewed.

3. Disclosure of utility model

The task is to create the design of a clamping nut for angle grinders so that the nut with its end part serves as a milling cutter. Thus, after the cutting operation of the material, there is no need to replace the angle grinder for further operations on grinding the surface of the cut material. The essence of the utility model is expressed in the aggregate of essential features sufficient to achieve the technical result provided by the utility model, namely the placement on the end surface of the clamping nut-cutter (2, Fig. 2) of a layer of abrasive material, due to which the previously cut surface of the material is ground, and the location on the side surface of the nut-cutter recesses for ease of unscrewing the nut-cutter by the hand of the operator, as well as holes for unscrewing the nut-cutter using druchnogo tool.

The combination of the functions of a clamping nut and a mill in one part allows two different operations, namely cutting and grinding, to be performed without changing the working tool. This provides significant time savings on preparatory operations associated with the change of tool. That is, immediately after the operation of cutting the material, without removing the cutting disc with the angle grinder, an operation is performed to grind the surface of the material using the applied layer of abrasive material on the end surface of the nut-cutter. Then, again without changing the tool, you can perform a cutting operation.

To achieve the result, the clamping nut must protrude in height beyond the size of the standard casing of the angle grinder so that the standard casing does not interfere with the grinding operation.

The diameter of the cutter nut is limited only by the required cutting depth of the material. Experimental work showed that for practical use the optimal range of the clamping nut-cutter is 30-60 mm.

The clamping nut-mill is unscrewed by the hand of the operator or when the nut-mill is tightly clamped - using an improvised tool (for example, a screwdriver) when inserting it into the holes on the side surfaces of the nut-mill (3, Fig. 2).

The experimental work carried out by the authors of the utility model at DI-STAR LLC showed high labor productivity and the corresponding quality of work when using the clamping nut-mill.

4. A brief description of the drawings.

Figure 1 - image of a clamping nut manufactured by Makita, where:

1 - holes for a special key.

Figure 2 - clamping nut mill for an angle grinder, where:

2 - a layer of abrasive material located on the end surface of the clamping nut-mill angle grinder;

3 - holes for loosening the clamping nut-cutter with a hand tool;

4 - recesses for convenience, unscrew the clamping nut-mill by hand.

5. Implementation of a utility model.

The utility model is manufactured and tested at DI-STAR LLC.

Production is being prepared for the serial production of a clamping nut-mill for an angle grinder.

Claims (1)

A clamping nut for fixing the tool on the spindle of an angle grinder, having holes for unscrewing the clamping nut, characterized in that a layer of abrasive material is applied to its end surface, and said holes and recesses are made on the side surface of the clamping nut for unscrewing, while the clamping nut has a diameter of 30 to 60 mm.

Images