RU23267U1 - GRINDING DEVICE - Google Patents

Description

GRINDING DEVICE.

The utility model relates to the field of machine tools and can be used for grinding internal spherical surfaces on parts.

A device for grinding, containing a table on which a grinding head is mounted vertically with the possibility of axial displacement is known. In the case of the grinding head with the possibility of mounted a pincher pin, on which a pivot pin is fixed for machining the part. The spindle drive is driven in the form of a belt drive, one pulley of which is mounted on the spindle, and the other on the output shaft of the electric motor.

(see A.S. USSR No. 1556876, class B24B5 / 00, 1990) - the closest analogue.

As a result of the analysis of the design of the known device for grinding, it should be noted that it is very difficult in terms of the mixing mechanism; the spindle axially.

In addition, this device allows you to process conical surfaces by adjusting its kinematic scheme, and spherical surfaces due to the shape of the grinding wheel, which is inconvenient, reduces processing performance, and in addition, it requires frequent editing of the shaping surface of the grinding wheel.

The objective of the present utility model is to develop a device for grinding hfostoy constructively and allowing grinding of spherical surfaces with high performance.

The task is ensured by the fact that in the grinding device containing a table with a vertically mounted grinding head supporting the grinding pin, as well as spindle and axial displacement drives w: grinding head, the new thing is that the device is equipped with a device for installation to be processed the part and the plate, vertically behind the bottom of the table, the grinding head is mounted on the plate with the spindle up, and its spindle is passed through the hole, completely:

MPKV24V11 / 00

the table, and protrudes beyond the upper plane of the table, the spindle rotational drive motor is mounted on the plate and kinematically connected to the spindle, the axial displacement of the grinding head is made in the form of a cross member connected to w 1 grinding head and through a cardan gear with a traction element, and the installation tool the part to be processed is made in the form of a base fixed on the upper plane of the table with racks located on both sides relative to the spindle, and there are elements on the racks To set the parts to be treated.

The developed device is simply constructive. The installation of the grinding head from the bottom of the table allows convenient access to the device for installing the part to be processed and to ensure its rotation relative to the installation elements. Processing with a non-profiled grinding wheel improves the accuracy of machining the spherical surfaces of parts.

When conducting patent research, the applicant did not find solutions identical to the claimed utility model, and therefore, it meets the criterion of "novelty.

We believe that the information presented in the application materials is sufficient for the practical implementation of the utility model.

The essence of the utility model is illustrated by graphic materials on which:

in FIG. 1 - device for grinding, General view;

in FIG. 2 - device for grinding, side view.

The encryption device comprises a table 1 with supports 2 connected by cross members 3.

From below, a plate 4 is vertically attached to the table 1, on which a plate 5 is mounted with vertical guides (not shown) vertically mounted on it. In the guide plate with the possibility of reciprocating movement, a grinding head 6 is installed, bearing a spindle 7 with a grinding fug

8. The drive of rotation of the spindle 7 is completed in the form of a pulley fixed to the last

9, connected by a belt 10 with a pulley 11 mounted on a shaft of an electric motor 12 located on a plate 4.

The grinding head 6 is installed vertically from the bottom of the table, with the grinding wheel 8 up, which is located above the surface of table 1. For this, a hole is made in table 1 (not indicated by position) through which spindle 7 is passed.

The mechanism of vertical shifting of the grinding head is made in the form of a cross member 13 connected by a bar 14 with a grinding head 6 and through a cardan gear 15 with a helical gear (not shown). The helical gear is made in a known manner, for example, a screw (traction element) can be connected to a cardan shaft, and a nut with the possibility of rotation can be mounted on table 1 or support 2.

On table 1, a fixture is fixed for installing the workpiece (not shown). The fixture is made in the form of a base 16 with two racks 17 located on both sides relative to the spindle 7. On the racks there are elements 18 for installing parts.

The grinding device operates as follows.

We consider the work on the example of grinding spherical belts on parts with base holes.

The part to be processed is installed in the elements 18 (for example, mandrels) with the base surfaces made on the part. The component 11b installed in the elements 18 has the ability to swing (carried out manually or by means of a mechanism - not shown).

The electric motor 12 is turned on, the rotation from the output shaft of which is transmitted through the belt drive (pulley 11 - belt 10 - pulley 9) to the spindle 7 and to the grinding wheel 8 mounted on it. By swinging the parts in the elements 18, the machined surface is brought into contact with the rotating circle 8, providing a surface treatment of the part along the radius.

If it is necessary to adjust the position of the grinding wheel (for example, due to wear of the latter), the nut of the screw mechanism is rotated, giving the screw axial movement, which is transmitted through the cardan drive 15 to the cross member 13 and through the rod 14 to the grinding head 6, which moves along the guide plates 5. After the adjustment

the position of the grinding wheel 8, the grinding head can be fixed in a new position by fasteners (not shown).

Claims (1)

A grinding device comprising a table with a vertically mounted grinding head supporting the grinding spindle, as well as spindle rotation drives and axial displacement of the grinding head, characterized in that the device is equipped with a device for mounting the workpiece to be machined and a plate vertically fixed at the bottom of the table, grinding the head is mounted on the plate with the spindle up, and its spindle is passed through the hole made in the table and protrudes beyond the upper plane of the table, the electric motor the spindle of the spindle rotation drive is placed on the plate and kinematically connected to the spindle, and the axial movement of the grinding head is made in the form of a cross member connected to the spindle head and through the cardan drive with a traction element, and the device for installing the part to be processed is made in the form of a fastened on the upper the plane of the base table with racks located on both sides relative to the spindle, and on the racks there are elements for installing the part to be processed.