SU980911A1 - Shaping faces of rod-type parts - Google Patents

Description

54) DEVICE FOR FORMING THE END OF DETAILS OF ROD DCPM

The invention relates to the processing of metals by pressure and can be used in the manufacture of long rod-type parts with thickenings or chamfers at both ends.

A device for forming the ends of rod-type parts is known, comprising an upper plate with sidewalls rigidly fixed thereto, a lower plate with a clamping half-matrix fixed thereto, a housing associated with another clamping half-matrix, as well as movable forming punches 1.

However, the known device provides processing of parts only from a calibrated profile and does not provide from uncalibrated, which reduces performance.

The aim of the invention is to improve the molding quality and productivity.

This goal is achieved due to the fact that, in a device for forming the ends of rod-type parts, comprising an upper plate with side walls rigidly fixed on it, a lower plate with a clamping half-matrix fixed on it, a housing connected to another clamping half-matrix.

as well as movable forming punches, the body is movably mounted between the sides of the top plate, the corresponding semi-matrix is rigidly fixed on the case, the punches are coaxially located in the case and each of them is connected pivotally through the rod and the swing axis to the side plates of the upper plate.

ten

FIG. 1 shows the general view; in fig. 2 - the same in the working position.

A device for forming the ends of rod-type parts contains

15 upper plate 1, on which sidewalls 2 are rigidly fixed. Between the side walls 2 there is a movable body 3 with a clamping half-matrix 4, spring-loaded with springs 5 relative to the top 20 of the plate 1. In case 3, punches 6 are formed for molding the ends of the workpiece, which are harnessed by axes 7 The connecting rods 8 and the swing axes 9 are connected to the sidewalls 2. The upper 25 n plate 1 is connected through guide columns and bushings (not shown) to the lower plate 10, on which the second clamping half matrix is attached.

Claims (1)

The proposed device operates 30 as follows. The initial billet 12 is placed in the clamping matrix 11. A press slider (not shown) moves the top plate 1 down together with the bokina 2, the case 3 with the clamping matrix and the punches 6. This movement of the spring 5 depresses the case 3 from the top plate 1 and further its movement relative to the top plate 1 between the sidewalls 2 is limited by the forming punches b, the axle 7, the connecting rods 8 and the axle 9 installed in the side panels 2 and the connecting rods 8. When the clamping half-matrix 4 stops in the original workpiece 12, the housing 3 stops, but the upper plate is olzhaet downward movement. The sides 2, being lowered with the upper plate, lower the axles 9. In this case the rods 8 rotate and, since their length remains unchanged, they move in the direction of the research institute for deformation of the punches b. But the resistance of the workpiece material is 12 defo. Worldwide, the force created by it, decomposing, is transmitted to the body 3 and, consequently, to the compressive semi-matrix 4, which increases proportionally to the clamping of the original piece along its axis. Thus, the clamping of the original billet in the clamping half-matrix 4 and 11, as well as the molding of the ends of the billet, is carried out by differentiated forces (an increase in the resistance of the workpiece material to the deformation increases its clamping force along the axis and vice versa). Clamping the workpiece 12, regardless of the tolerances on its transverse dimension, is optimal, which prevents the workpiece from buckling the detail of the trace from clamping the semi-matrix and does not require polishing according to the longitudinal size of the workpiece after deformation. When the ends of the part are molded, the top plate of the device rises. For a certain period of time, the housing 3, remaining stationary by means of the springs 5, holds between the clamping half-matrices 4 and 11 the finished part 13, which, when moving the sidewalls 2 and the plate 1, ensures the removal of the punches b from the ends of the finished part 13. and the finished parts 13 are removed from the half-matrix 11. Then the cycle is repeated. The proposed device, in comparison with the prototype, makes it possible to improve the quality of molding and productivity by ensuring the processing of finished calibration workpieces. The invention of the device for forming the ends of rod-type parts, comprising a top plate with side walls rigidly fixed on it, a bottom plate with a clamping half matrix fixed on it, a housing connected to another clamping half-matrix, as well as movable forming punches, This means that, in order to improve molding quality and productivity, the casing is mounted between the sides of the upper plate, the corresponding half-matrix is rigidly fixed to the casing, the punches are located in the casing e and each of them is pivotally connected through a connecting rod and a swing axis with the sides of the upper plate. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 405640, cl. B 21 J 5/08, 1970 (prototype). // i .l. ./