RU148856U1 - OUTDOOR GRINDING DEVICE - Google Patents

Abstract

A device for external grinding of the radial surfaces of the product, containing a mandrel, characterized in that it is equipped with a drawstring located on the mandrel with a movable block, on which the holder for the workpiece is mounted, and the drawstring is made with through grooves, one of which is intended for attaching the curtain to the mandrel, and the other for fastening a movable block, which has the ability to be displaced to the axis of the mandrel to provide a given grinding radius.

Description

The utility model relates to mechanical engineering, in particular to the processing of various surfaces of products by means of a grinding tool.

A device for grinding convex surfaces of a small radius is known. There is a roller on the wings, which can be pressed against the cube by a bar. On the left end of the roller there is a vise, and on the right is a handle with which you can rotate the roller, vise and templates fixed in them. [Kosmachev I.G. Toolmaker, p. 144]. Grinding is carried out by the periphery of the circle. The largest radius depends on the elevation of the grinding wheel above the machine table and is usually 200 mm. The grinding accuracy is 0.01 mm. Check the radius with an indicator or a ruler mounted on a block of end measures of length.

Closest to the claimed utility model is a device for external grinding of products [Patent RU No. 62553 of 04/27/2007, B24B 27/04] consisting of a head and a spindle with adapter sleeves mounted on ball bearings, contains a pin made in the form of a hollow pipe with a ramrod placed in it, with a mandrel with a workpiece being placed on one side of the pinole, and a plug fixed on the rod side on the ramrod. The spindle adapter sleeves are designed so that the sleeve located on the mandrel side is fixed in the spindle by means of fasteners, and the sleeve located on the plug side by means of a Morse taper and a pin, and the pin is fixed in an additional adapter sleeve for transmitting torque from the adapter sleeve to the pin .

The disadvantages of the described device for external grinding is the inability to grind radius surfaces.

The objective of the proposed technical solution is to remedy these disadvantages, namely the possibility of grinding radius surfaces.

This technical result is achieved in that the device for external grinding of the radiused surfaces of the product, containing the mandrel, is equipped with a link located on the mandrel with a movable block on which the holder for the workpiece is mounted, and the link is made with through grooves, one of which is intended for attaching the link to the mandrel, and the other for mounting the movable unit, which has the ability to offset to the axis of the mandrel to provide a given grinding radius.

The link is made with through grooves A ₁ and A ₂ . The groove A ₁ has a width h ₁ and a length l ₁ , and A A _{2 has} a width h ₂ and a length l ₂ . Groove A _{1 is} intended for fastening the backstage to the mandrel, and A ₂ is designed for fastening the movable block, with the holder on which the workpiece is fixed, to the backstage. The movable block is a rectangular case with a height H, length L, width B. On one side of the movable block, a recess of width l ₃ , height h ₃ , length b _{3 is} made at an angle of 90 ° to form surfaces A and E. On the other side of the movable block at an angle of 90 °, a recess was made with a width of l _4, height h ₄ , length b ₃ to form surfaces D and C. At least two threaded holes with a diameter of d ₅ at a distance of h ₅ and a depth of l _{5 were} made on the movable block to secure the holder with clamps to the supporting surfaces A and E. On the other hand, by Vision unit 3 is configured of at least two threaded holes of diameter d ₆ at a distance and a depth of ₆ h l ₆ for fixing the movable block 3 to the rocker 2.

The holder in which the workpiece is fixed is based on the supporting surfaces A and E and is fixed with clamps, for example, bolts in holes for diameters d ₅ provided for fastening in the holes

The surface D is made at an angle of 45 ° to the base of the movable block and serves to reliably fix the holder with clamps, for example bolts in the provided holes d ₆ , to the supporting surface E.

In FIG. 1 shows a General view of the proposed device for external grinding.

In FIG. 2 shows a movable unit.

In FIG. 3 shows the backstage

The device for external grinding of products comprising a mandrel 1 on which is mounted a link 2 with a movable block 3, and a holder 4 located on it, on which the workpiece 5 is fixed. The link 2 is made with through grooves A ₁ and A ₂ . The groove A ₁ - has a width h ₁ and a length l ₁ , and A ₂ - a width h ₂ and a length l ₂ . Groove A ₁ - is intended for fastening the backstage to the mandrel, and A ₂ - is designed for fastening the movable unit, with the holder on which the workpiece is fixed, to the backstage. The movable unit 3 is a rectangular housing of height H, length L, width B. On one side of the movable unit 3, a recess of width l ₃ , height h ₃ , length b _{3 is} formed at an angle of 90 ° to form surfaces A and E. On the other side of the movable of the block at an angle of 90 °, a recess is made of width l ₄ , height h ₄ , length b ₃ with the formation of surfaces D and C. On the movable block 3, at least two threaded holes with a diameter of d ₅ at a distance of h ₅ and a depth of l _{5 are made} to secure the holder 4 clamps 6 to the supporting surfaces A and E. On the other hand, movable block 3, made at least two threaded holes with a diameter of d ₆ at a distance of h ₆ and a depth of l ₆ for mounting the movable block 3 to the wings 2.

The holder 4, in which the workpiece 5 is fixed, is based on the supporting surfaces A and E and is fixed by clamps 6, for example, by bolts in the diameters d ₅ provided for fastening in the holes. The surface D in is made at an angle of 45 ° to the base of the movable block 3 and serves to secure the holder 4 with clamps 6, for example, bolts in the provided holes d ₆ , to the supporting surface E.

The device for external grinding works as follows:

The link 2 is fixed on the mandrel 1 in the groove A ₁ , for example with a screw. The movable unit 3 is fixed on the link 2 in the groove A ₂ for example, with screws in the holes provided for fastening in the holes d ₆ , a holder 4 is mounted on which the reference plate is fixed, in the recess and with clamps 6 it is fixed to the supporting surfaces A and E, for example, with screws in the provided for mounting in holes d ₅ .

The top of the reference plate is mounted on the axis of rotation OO of the mandrel 1, for example, using the MPB-2 microscope (1120-57). Then, the movable block 3 is shifted to the axis of rotation OO of the mandrel 1 by the value of the specified grinding radius R _W. Remove the reference plate from the holder 4 and install the workpiece 5, for example, a carbide plate.

Turn on the machine. Grind the workpiece 5 grinding radius R _W After the grinding process, the processed product 5 is removed from the holder 4. The device is ready for further grinding of the next processed product.

The inventive design of the device provides: the possibility of fixing the workpiece 5 for grinding radius surfaces including carbide surfaces with the ability to quickly replace the workpiece after grinding.

Claims (1)

A tool for external grinding of the radial surfaces of the product, containing a mandrel, characterized in that it is equipped with a drawstring located on the mandrel with a movable block on which the holder for the workpiece is mounted, and the drawer is made with through grooves, one of which is designed for attaching the curtain to the mandrel and the other for fastening a movable block, which has the ability to be displaced to the axis of the mandrel to provide a given grinding radius.

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