RU63282U1 - SPHERICAL COOLER FOR PROCESSING EXTERNAL SURFACES OF ROTATION BODY PARTS - Google Patents

Abstract

Spherical smoother for processing the outer surfaces of parts - bodies of revolution refers to the field of engineering technology and can be used to smooth the external surfaces of parts - bodies of revolution when machining on lathes using the method of smoothing with a rigid fastening of the tool. To ensure uniform wear of the working part of the tool, eliminating the possibility of the indenter not rotating, the spherical smoother for processing the outer surfaces of parts - bodies of revolution additionally includes an electric motor that is connected via a coupling to the shaft. During operation, the shaft is informed of forced rotation from the electric motor, as a result of which the contact of the working part of the indenter with the workpiece occurs uniformly and with the same frequency throughout the entire processing process.

Description

The invention relates to the field of mechanical engineering technology and can be used to smooth the outer surfaces of parts - bodies of revolution when machining on lathes using the method of smoothing with a rigid fastening of the tool.

A well-known tool used in the method of smoothing, which provides a rigid kinematic connection between the tool and the part (Smelyansky V.M., Study of the process of diamond smoothing with rigid fixing of the tool. - Thesis ... candidate of technical sciences. - Moscow, 1969. - 229 p.). In the method of smoothing proposed by V. Smelyansky, the contact of the working part of the smoothener with the workpiece is constantly on the same platform, which leads to fast and uneven wear of the working part of the tool.

As a prototype of the tool for smoothing, providing a rigid kinematic connection between the tool and the part, a smoother with a spherical shape of the working part of the indenter was chosen (SU 1459903 A1, 24 V 39/00, 02/23/1989, 5 pp.).

The smoother design comprises a holder connected to the housing with angular contact bearings housed in it, adjustable by a cover pressed by bolts, in which a spindle with an indenter fixed in it is mounted.

The disadvantage of this design is the dependence of the indenter speed on the processing conditions and its instability during processing, as a result of which the wear of the working part of the indenter is uneven. It is also possible, for example, with small ironing efforts, the absence of rotation of the indenter about its axis.

To ensure constant rotation of the indenter with a given frequency, therefore, uniform wear of the working part of the tool, the spherical smoother for processing the outer surfaces of parts - bodies of revolution additionally includes an electric motor, which is connected via a coupling to the shaft. During operation, the shaft is informed of forced rotation from the electric motor, as a result of which the contact of the working part of the indenter with the workpiece occurs uniformly and with the same frequency throughout the entire processing process.

Figure 1 shows the design of the inventive spherical smoother for processing the outer surfaces of parts - bodies of revolution.

The design of a spherical smoother for processing the outer surfaces of parts - bodies of revolution includes the following elements: indenter with a spherical working part 1, screw 2, shaft 3, adjusting nut 4, holder 5, coupling 6, electric motor 7, two angular contact bearings 8.

Using a screw 2, the indenter 1 is fixed in the Central hole of the shaft 3. The shaft 3 is mounted in angular contact bearings 8, which are installed in the cavity of the holder 5, which has in its design an element for fixing it in the tool holder of the machine. By means of an adjusting nut 4, twisted into the cavity of the holder 5, the angular contact bearings are adjusted. The shaft 3 is connected to an electric motor 7, a coupling 6.

Spherical smoother for processing the outer surfaces of parts - bodies of revolution (hereinafter smoother) operates as follows.

The smoother is set below (or above) the axis of the centers of the lathe. When it moves at the working feed, from the electric motor 7 to the shaft 3 s

the indenter 1 installed in it by means of the clutch 6 is transmitted forced rotational movement.

The inventive design of the smoother, allows for more uniform wear of the working part of the indenter, to exclude the possibility of lack of rotation of the indenter, compared with the prototype, due to its forced rotation with a certain constant predetermined frequency.

Claims (1)

Spherical smoothing device for processing the outer surfaces of parts-bodies of revolution, consisting of a holder, a shaft mounted in angular contact bearings, an indenter fixed with a screw on the shaft and an adjustment nut mounted in the holder for adjusting angular contact bearings, characterized in that it is equipped with an electric motor connected to the shaft by means of a coupling.