SU1445926A1 - Arrangement for vibration roll forming of prismatic surfaces - Google Patents

Abstract

The invention relates to the cold processing of metals and alloys by the method of plastic deformation and can be used for the finishing treatment of the flat prismatic surfaces of large-sized parts by vibro-rolling. The goal is to increase the processing performance of prismatic surfaces of large-sized guide parts by processing them in a single pass and expanding technological capabilities. The device is equipped with two housings that are hingedly interconnected by means of a hollow axis fixed in the frame. The motor is mounted on the frame. The device has a mechanism for fixing the position of the housing. The drive shaft of an electric motor with a gear wheel is installed inside the hollow axis coaxially with it. The toothed wheel is kinematically associated with eccentrics. In both carriages installed adjusting screws connected to the mechanism of reciprocating movements of the carriages. The tapered end of the fixing screws rests on one of the walls of the grooves made on the end of one of the outer hinges of the hinged connection of the housings. This ensures fast fixation of the housings in any working position with respect to prismatic surfaces. 6 Il. with

Description

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The invention relates to the field of cold processing of metals and alloys by the method of plastic deformation and can be used for the finishing treatment of the flat prismatic surfaces of large-sized parts by vibro-rolling.

The purpose of the invention is to increase productivity by processing large-sized parts in a single pass and expanding technological capabilities by processing prismatic surfaces angled.

FIG. 1 shows a diagram of the proposed device; in fig. 2 is a view A of FIG. one; in fig. 3 is a view B in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a section of YYD in FIG. four; in fig. 6 is a setup diagram of the device when processing prismatic surfaces with edges of different width and located at different angles to the horizon.

The device consists of a welded frame 1 (Fig. 1), which is attached to a caliper of a longitudinal milling machine or a longitudinal planing machine (not shown). An axle 3 is fixed to the lugs 2 of the frame 1 on the floor of frame I. On the frame I, an electric motor 4 is mounted, on which a gear wheel 6, kinematically connected with gears 7 and 8, conical pairs 9 and with adjustable eccentrics 10, is fixed kinematically. With t 11, which, in turn, are pivotally connected to the axis 12, rigidly connected with the adjusting screws 13 installed in the carriages 14 with the rolling heads 15 (Fig. 2). The gigs 11 with eccentrics 10 and pairs 9 form the mechanism of reciprocating movements of the carriages 14. The latter are installed with the possibility of reciprocating movements in the guides 16 of the housings 17 and 18. At the same time, on the casing 18 there is an internal hinge loop 19, - two external hinge hinges 20 and 21. In hinges x 19-21, holes are axially drilled into which an axle 3 is inserted into the floor, forming a hinge connection between the housings 17 and 18. Thus, the axes of the lugs 2, loops 19-21, the hollow axis 3, the drive shaft 5 with a gear wheel 6 with fall.

On the outer end surface of the loop 20 there are three evenly spaced threaded holes in which three fixing screws 22 are installed (FIGS. 3 and 5), the ends of which are made in the form of cones. On the end surface of loop 19 (on the side of the inner end surface of loop 20), grooves 23 are made (Fig. 4), arranged so that the bsieva passing through the centers of the screws 22 (Fig. 4, in dotted lines) is located in the square bounded by the groove contour 23.

The grooves 23 form, in mutual intersection, a hexagonal shape (FIG. 4), the outer and inner sides of which are arcs of concentric circles with radii, for example, R and R, whose centers are located at the vertices I, K, M, H, P (Fig. 4) the right pentogonal (Fig. 4, dashed line). The points I, K, L, M, H, P belong to a circle whose diameter is equal to the diameter of the outer surface of the inner hinge loop 19. When the positions of the housings 17 and 18 are fixed, the cones of the screws 22 are in contact with one of the walls of the grooves 23 ( sides of the hexagonal figs gurus, fig. 4). The grooves 23 arranged in a special way (Fig. 4) on the front surface of the hinge 19 and three screws 22, evenly located on the hinge 20, form a mechanism for fixing the position of the housings 17 and 18. On the axis 3 from

0 loop 20 is installed nonius 24 with a scale of angles, and at the end of axis 3 (on the same side) there is a zero risk (not shown). On the housing 18, on the side of the loop 19, a scale of 25 angles is fixed, and on the outer end surface of the loop 20 (on the same side) there is a zero risk (not shown). Gears 8 are connected with handwheels 26. The device operates as follows. The position of the housings 17 and 18 is preliminarily set at the required angle equal to the angle between the edges of the prismatic surface being machined. At the same time, the rotation of the handwheels 26 rotates the gears 8, which transmit the rotation of the scissors 7. Last, making a planetary movement around the gear wheel 6 (along arrows D, Fig. 2), turn the housings 17 and 18 with knurled heads 15. Angle of rotation Shells 17 and 18 are controlled on a scale on a nonius 24 and on a scale of 25, respectively. Then with

By means of the position fixing mechanism of the housings 17 and 18, the position of the housings 17 and 18 fixed for the treatment of a certain prismatic surface is fixed.

g screws 22 until they stop their cones in one of the walls of the grooves 23. (Fig. 5). Next, by measuring the width of the faces of the prismatic surface being machined (dimensions E and F, Fig. 6), the necessary eccentricity of the eccentrics 10 is established and

0 carriage 14 with knurled heads 15 to the position when the center of the machined face (dimensions E / 2 and W / 2, Fig. 6) coincides with the axial axes (axes of symmetry) of the knurled heads 15 located in the middle of their stroke (ei, and e2 - values

5 eccentricities of eccentrics 10, FIG. 6). The adjusting movement of the carriages 14 with knurled heads 15 in the middle of their code is made by rotating the adjusting

screws 13. Then, the caliper of the longitudinal milling (or longitudinal planing) machine (not shown) with the device fixed on it is lowered until the required working force of the deforming elements (not shown) of the rolling heads 15 with the edges of the prismatic surface to be processed is created.

After switching on the electric motor 4, the rotation from the drive shaft 5 with the gear wheel 6 is transmitted to gear 7 and 8, to the conical pairs 9 to adjustable eccentrics 10. The rotation of the eccentrics 10 tons 11 and 11 is converted into reciprocating movement of the carriages 14 with roll heads 15 with deforming elements (not shown), the oscillations of which, in combination with the movement of the machine table feeds (not shown), form a partially regular microrelief in a single pass on the prismatic surface to be processed.

The application of the proposed device allows one-pass processing of prismatic guides of large-sized parts with symmetric and asymmetrical arrangement of faces with different angles at the top of the prism.

Claims (1)

Invention Formula A device for vibro-rolling of prismatic surfaces of parts, containing a knurled head mounted on a carriage mounted with the possibility of reciprocating movements along the body guides, the mechanism of reciprocating movements of the carriage with an eccentric, electric motor and frame, in order to increase productivity due to processing of large-sized parts in a single pass and expansion of technological capabilities due to processing of prismatic surfaces, located angled, it is provided with an additional housing containing a knurled head mounted on the carriage, and a mechanism for its reciprocating movement with an eccentric, a housing fixing mechanism with screws having a tapered end, positioned in the carriage adjusting screws and a gear wheel mounted on an electric motor shaft The housing is interconnected by a hinge joint consisting of a hollow axis, an inner and two outer hinges, the gear wheel being kinematically connected with eccentrics the shaft is placed coaxially in the hollow axis, and the latter is on the frame, the gear wheel is kinematically connected with the eccentrics, while at the end of one of the outer hinges there are threaded holes for screws with a tapered end, and at the end of the inner hinge there are slots forming a hexagon, for the interaction of their walls with the conical ends of the screws. in-in Phie. Fig.Z Yr AND 22 20 1B FIG. five Fie.b