SU1685694A1 - Machine for diamond burnishing of surfaces - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in the surface-plastic deformation of the surface of shaped cylindrical parts, in particular the type of necks of crankshafts. The purpose of the invention is the expansion of technological capabilities in the processing of shaped surfaces of parts. The device comprises a housing 1 and a rod 2 accommodated therein with a deforming element 3 in the form of a sphere, a means of loading, a turning unit. The rod 2 with the deforming element 3 is fixed on the frame 11 with the possibility of axial movement in its plane and is kinematically connected with the compression spring 5. The axis of symmetry of the deforming element 3 stands for the axis of rotation of the frame 11 by the amount of tension on the spring. Ram 11 is associated with a turning unit. 2 Il.

Description

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The invention relates to devices for strengthening the surfaces of parts by the method of surface plastic deformation of complex surfaces, mainly parts like crankshafts.

The purpose of the invention is the expansion of technological capabilities by providing processing of complex surfaces.

Figure 1 shows a diagram of the device to configure; figure 2 - the same, after setting.

The horizontal arrow in Figures 1 and 2 with the designation So is the axial feed movement with a speed equal to S0, and the circular arrow with the designation w is the rotational movement with speed (o.

The device contains a corus 1, a rod 2, a deforming element (spherical tip) 3, a pin 4, a spring 5, a stop 6, a spring 7, gears 8, a control handle 9, a kerchief 10 for mounting the device in a tool holder (not shown) frame 11 with side walls and upper and lower shelves, rod 12 and stop 13, workpiece 14. At this, deforming element 3 is fastened to one of the ends of rod 2. Rod 2 is mounted on rod 12 with the possibility of reciprocating axial movement. The rod 12 is rigidly fixed to the frame 11. The frame 11 is mounted in the housing 1 with the possibility of rotation about the axis AA. Case 1 has a kerchief 10 rigidly fixed on it for mounting the device in the tool holder (not shown). The rod 2 has a pin 4 and is mounted in the plane of the frame

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11 .. A spring 5 is mounted on the rod 2, which is compressed by the plane of the frame 11 and a fixed stop 13 mounted on the rod 2. On the frame 11 spring limiter 6 is mounted with spring-loaded 7 rotation of one of the gears of conical gear teeth 8, which are also mounted on frame 11 One of the gears of the gear bevel gear 8 has a handle 9 of the manual drive. The position of the anvil 13 on the rod 2, which determines the compression of the spring 5. is fixed.

The device works as follows.

The device is installed with the gusset plate 10 in the machine tool holder (not shown) so that the axis of symmetry of the rod 12 intersects the axis of symmetry of the part 14. After that, the machine drive is activated, indicating the rotation of the part 14 and the movement of the device feed. The deforming tool 3 is brought into contact with the workpiece 14 with a tension corresponding to the minimum tension of the spring 5, if the hardening starts from a smaller radius to a larger one, and vice versa. The spring 5 is chosen so that the oscillations of one Odinus of the part 14 provide a fluctuation of the strength of strengthening within 1-2 kg. The pin 4 on the rod 2 serves to limit the axial movement of the rod 2. Before operating, the device with the pin 4 is adjusted so that the symmetry axis of the deforming tool 3 protrudes beyond the axis of rotation of the frame 11 by the amount of tension of the spring 5. As the deforming element 3 approaches the end surface of the part 14, it is necessary to press out the stop 6 and, turning the handle 9, to achieve that the axis of symmetry of the element 3 is oriented along the normal to the surface of the part 14 (see Fig.2). After element 3 reaches that zone of part 14, when it is necessary to switch the supply So from longitudinal to transverse to strengthen the end surface of part 14, the spring 5 is compressed for the time required to switch the direction of supply So- Next, the orientation of the symmetry axis of the element is corrected 3 with respect to the reinforced surface of the part 14 by means of the handle 9, having previously squeezed the stopper 6. During operation of the device, the spring 5 is compressed by the required tension r when the element 3 contacts the treated part 14. As a result, the axes of rotation of the axis of the deforming element 3 and the axis of rotation of the frame 11 are combined. The axis of rotation of the frame 11 and the axis of symmetry of the sphere

element 3 is caused by the fact that when the frame 11 is rotated, the feed rate So element 3 of the element 3 may be changed, which leads to a decrease in the stability of the quality parameters of the surface layer of the part 14. And this undesirably affects the performance properties of the part 14. Tooth gears 8 must be made small-model

for a more accurate adjustment of the orientation of the tool 3, This value is designated as LH. In this way, the required force of hardening during compression of the spring as a result of moving the device together with the tool holder of the machine is provided. It is necessary that the vertical axis of the element 3 be constantly on the axis of rotation of the frame 11. This is because only in this case, when the frame 11 is rotated

hardening force does not change. When changing the position of the vertical axis of the element 3 relative to the axis of rotation of the frame 11, the operation of the device will disrupt the strength mode of hardening, i.e. in this case

It makes impossible the strengthening treatment in one operation of various surfaces (face, radius, cylindrical) of shaped cylindrical parts. So going on

strengthening treatment in one operation face, radius and cylindrical surfaces of parts. As the deforming tool 3, hard alloys, diamond, etc. can be selected. Using

The proposed device allows to process the face, radial and cylindrical surfaces of shaped cylindrical parts in one operation. Using the proposed device

for hardening the surface of drill pipes used to drill the sea shelf, can increase the corrosion resistance of the surface and as a result, a significant economic effect can be achieved.

Claims (1)

Apparatus of the Invention A device for diamond smoothing of surfaces of parts such as crankshaft necks, comprising a housing mounted in it with the possibility of returning an axial movement of the stem carrying the deforming element, the loading means and the turning unit of the deforming element, characterized in that, in order to expand technological capabilities by providing processing of complex surfaces, it is equipped with a rotary having a side wall and an upper and bottom shelf frame, mounted in housing associated with uz1 11