SU1350768A1 - Method of working joints of segments of body units of hydraulic power set - Google Patents

Abstract

The invention relates to the technology of hydraulic units and can be used in electrical and power engineering. The purpose of the invention is to improve accuracy, simplify the process and increase productivity. On the cast or welded billets of segments 1, basic risks are applied: circular 2, vertical and horizontal, on the upper flange, 5 radial, corresponding to the machined butt face. The points 6 of the intersection of the scratches 2 and 5 are blinded. Marked preforms of segments 1 at least two are placed on the rotary table 7 of a horizontal boring machine 8. Rotation sets the table so that the chord of one of the segments connecting points 6 is parallel to the machine guide, which is checked with a needle installed in spindle 12, points 6. Note on the pitch limb the position of the angle indicator of the top plate of the table at the pitch limb at an angle of 90 ° amp; - --- from the marked position of the pointer, having the plane of one of the joints of the segment parallel to the machine guide. The first joint is milled. Then turn the table plate in the opposite direction 180 degrees from the marked position of the angle indicator and mill the second joint. Similarly, the second segment is ground and processed. 5 il. 6 s (L o o ate o O) 00

Description

The invention relates to a technology for the manufacture of hydraulic units, in particular, to a method for treating the surfaces of joints of round-sized circular connector parts consisting of separate segments (three or more), to which the stators-capsule hydrogenerators, lids and the seal body of the submersible baths belong. tures of hydrogenerators, stators, enclosures of guide apparatus, upper and lower caps of the hydro- turbine ring, etc., and can be insular 10

in addition, they are fastened with spacer beams 10 with bolts 11 that perform the functions of the supplied supports, and the position of segments 1 must not be disturbed in the vertical and horizontal planes.

Rotate the table in such a position as Fig. A) so that the chord of one of the segments (alignment line), connecting the intersection point 6 of the circular 2 and radial 5 marks, is parallel to the machine guide, which is checked with a needle - and the power machine-IB in the shpinindl 12 of the machine, on points 6. I note on the dividing limb the position of the angle of rotation (not shown) of the upper plate of the table. Turn the top) table glitter of FIG. 1, shows a segment with a 2 dividing limb at an angle (90 ° ---) from the marked position of the decree of the bodies (figure 5) angle, having the plane of one of the leading segment in packs, view A fig „1 | FIG. 3 is segmented in parallel with the machine guide, and

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The purpose of the invention is to improve accuracy, simplify the process and increase productivity.

vertical and horizontal axial marking risks, side view; figure 2 - the same, with circular and radial drawings, mounted on a turntable at a horizontal boring machine and secured with expansion beams; figure 4 - view B in fig.Z; figure 5 is a rotary table with segments installed in the processing position of one of the joints relative to the horizontal boring machine.

The method of processing the joints of the segments of the hull units of the hydraulic unit is carried out as follows.

Basic risks are put on cast and welded billets of segments 1 (Figures 1 and 2): circular 2, located at the largest diameter, vertical 3 and horizontal 4 at the joints and on the upper flange radial 5 corresponding to the machined butt face. The points of intersection 6 are circular, 2 and radial 5 rice are turning yellow.

Then, the marked billets of segments 1, two pieces each from h-four, are mounted on the rotary table 7 (fig. 3 and 4) of the horizontal boring machine 8 on the measuring pads 9. With the help of jacks (not shown) on the vertical 3 and horizontal 4 risks, Segments 1 are on turntable 7 and attached to the table. For a more reliable attachment of high segment workpieces and no vibration when machining butt surfaces, segments 1 with each other

in addition, they are fastened with spacer beams 10 with bolts 11 that perform the functions of the supplied supports, and the position of segments 1 must not be disturbed in the vertical and horizontal planes.

Rotate the table in such a position as Fig. A) so that the chord of one of the segments (alignment line) connecting the intersection point 6 of circular 2 and radial 5 marks, is located parallel to the machine guide, which is checked by a needle,

the first joint is milled. Then turning the table plate in the opposite direction 180 - o1 from the marked position of the angle indicator, mills the second joint of the first segment a - the central angle of the segment, processing and BI. ; er in the same way the second segment.

Due to the fact that the chord length (along the alignment line) between the points 6 of the intersection of the circumferential and radial risks is several times greater than the length of the radial risks 5, the error of the central angle of the segment decreases accordingly. repeatedly.

Thus, the application of the proposed method provides an increase in the processing accuracy of the butt surfaces of the segments.

In addition to TorOj, the proposed method makes it possible to simplify and mechanize the process of reconciliation, exclusion. intermediate assembly operations and reduction, in connection with this, of the production cycle, the release of the production areas required for the manufacture of these parts, as well as a significant reduction in the lifting and transport equipment j and is applicable to ring-shaped detachable parts consisting of any number of segments.

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The method of processing joints of segments of hull units of a hydraulic unit, including marking the basic risks of circular, radial and vertical alignment relative to the guides of the horizontal boring machine and milling of the cutting surface, is different because, in order to improve accuracy, simplify the process and productivity increase-, before alignment, segments, at least two, are placed on the turntable with a dividing device, the alignment of each

1350768

the segment is made by rotating the table to the location of the intersection points of the radial and circular riser pp line, parallel to the guide machine, then fix the pointer relative to the scale of the dividing device, and before milling the surface of one joint, the turning table

turn at an angle of 90 - - before milling the surface y) of the last joint, the table is turned in the opposite direction by an angle of 180 l, where d is the central angle of the segment.

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Editor A. Kozoriz

Compiled by G. Mayorova

Tehred M. Khodanich Proofreader L. Pilipenko

Order 5294/54 Circulation 659 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production

printing company, Uzhgorod, Projecto st., 4

FIG A

Claims (1)

Claim A method of processing joints of segments of hull units of a hydraulic unit, including marking up basic patterns of circular, radial and vertical, aligning with the guides of a horizontal boring machine and milling a joint surface, characterized in that, in order to improve accuracy, simplify the process and increase productivity, segments are reconciled , at least two, placed on the rotary table. with a dividing device, the alignment of each segment is carried out by turning the table to the location of the intersection points of the radial of the second and circular notches of the PP line, which is parallel to the machine guide, then fix the pointer relative to the scale of the dividing device, and before turning the surface of one joint, turn the table (Uvayu at an angle of 90 ° - ---, and before milling the surface / other joint, turn the table in in the opposite direction at an angle of 180 ° -d, where d is the central angle of the segment. FIG. / view A