SU893373A1 - Method of producing parts such as flanged sleeve - Google Patents

Description

Ieo6rvten1uyu refers to the processing of metals by pressure in can be used when making parts such as a sleeve with a flange. A known method of manufacturing parts such as a sleeve with ({a trench, including shaping the side surface of the sleeve using a punch and die, punching the hole and extruding the DJ flave.) The disadvantage of the known method is the low accuracy of the parts to be made, because The inner bore hole is in different positions, which does not ensure high precision in the alignment of the sphere ({trench relative to the inner bore. The purpose of the invention is to improve the accuracy of parts. Delivered The goal is achieved in the method of manufacturing parts such as a sleeve with ({a trench, including shaping the side surface of the sleeve using a punch and die, punching the hole and mounting t of the flange, ({forming the side surface of the tongue in the punch cavity, and simultaneously By extruding the flange, the hole is calibrated with the same punch. In Fig. 1, the method of volumetric punching of a sleeve-type part with ({trench, (in operations); in fig. 2 is a tool setup diagram for a U1 position. For example. The manufacture of a nut with an external hexagon and a C ({) serial ({trench. The part is made mainly in a cold state from a bar, which in the 1st operation is rubbed onto workpieces with diameter d and height b. At the 11th operation, the ends of the workpiece are aligned obtaining a diameter d, height Vi, at the same time they are chamfering. In the sixth step, a direct extrusion is made from the neck of the granulator 5, the size of six to 38 facets of the finished product, leaving a small flange with a diameter of 3 and a height of 0. The operation is forced to extrude to form a glass. internal diameter (3 (x. gaining flange height g and product height H) At the U operation, the bottom was punched to obtain a diameter (3. In operation VI, the formation of a spherical flani with a diameter O and height b was performed and simultaneous calibration internal holes with a diameter of efj, obtaining the height of the part N. The spherical flange is molded and the internal hole is calibrated simultaneously by the same tool, punch 1 and at the VI position (Fig. 2 The shaping of the flange sphere is made in the cavity of the punch 1, the finger 2 of the punch calibrates the inner tube. . In this case, the hexagonal part is located in the matrix 3, and the part is supported on the ejector 4. The flange beats relative to the inner diameter only depends on the quality of the tool. In order to have a minimum beating, it is necessary to withstand the minimum mixing of the axes of the punch 1 and the finger 2 of the punch. The proposed method was tested in the laboratory under the {{preparing the wheel mounting nut). Nut material steel 15 kp, GSHL 1O7O2-78. 1 operation Cutting billets 31 and 18.5 Power 28 tons P operations Alignment of ends 34 Force C operation Straight extrusion S 27 Nc 7 4 Force RMS 120 t State operation Reverse extrusion "32 18.5 1 9.5 H 31 Power". 130 t In operation Punch bottom d 18,3 Effort VI operation Draft flange, hole calibration D 38 dj 32 "Jaf 18,7 LA 9 S 27 EFFORT 98 t Received correspond to the technical conditions and requirements of the drawing. The proposed method of die stamping of parts such as a sleeve with a flash head allows one to obtain parts of higher accuracy and makes it possible to eliminate subsequent machining, i.e., to reduce the labor intensity of manufacturing. The invention The method of pre-fabricating parts such as a sleeve with a flange, including shaping the side surface of the sleeve using a punch and die, 1 forming the hole and pressing the flap, characterized in that, in order to improve the accuracy of the parts produced, the flange side surface was formed and simultaneously with extruding the flange, the hole is calibrated with the same punch. Sources of information taken into account in the examination 1. Golovin V. A. and others. Technologists of cold forming by pressing. M., Mashinostroenie, 197O, p. 1O5, ris.386.

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Claims (1)

The claims ₃ θ. Method of manufacturing sleeve-type parts with a flange, comprising shaping the side surfaces of the bushing using the punch and die, punching and squeezing flange, characterized in that from ³⁵ to improve the accuracy of manufactured parts, shaping the side surface of the flange is performed in a cavity of the punch, and simultaneously with extruding the flange calibrates from ⁴⁰ versts with the same punch.