SU1505647A1 - Compound die for bending and cutting parts - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular, to rods for the bending and trimming of parts such as the leads of radioelements. The purpose of the invention is to improve the quality of the product by increasing the uniformity of the pressing of the leads of the product and their calibration. The stamp contains bending and cutting tools, a composite clamp with calibrating plates and a shock-absorbing unit. The clamp is made of composite pressure plates by the number of outputs of radio elements. The shock-absorbing unit is made in the form of two sections, consisting of alternating gears and friction disks. Each gear is connected to a rail that interacts with one of the pressure plates. During the working stroke, bending and trimming of the product leads occur. In this case, the slats push the pressure plates, which press down the leads of the product. The clamping force is constant in magnitude and is determined by the compression force of the gears and friction discs. Independent movement of each rail with constant force ensures reliable clamping of each output. 1 hp ff, 3 ill.

Description

H

(L

SP

about sd

05 4

Dov radioelements. The purpose of the invention is to improve the quality of the product by increasing the uniformity of the pressing of the leads of the product and their calibration. The stamp contains bending and cutting tools, a composite clamp with calibrating plates and a shock-absorbing unit. The clamp is made of composite pressure plates by the number of outputs of radio elements. The shock-absorbing unit is made in the form of two sections, consisting of alternating gears and friction disks. Gear

associated with a rail that interacts with one of the pressure plates. During the working stroke, bending and trimming of the product leads occur. In this case, the slats push the pressure plates, which press down the leads of the product. The clamping force is constant in magnitude and is determined by the compression force of the gears and friction discs. Independent movement of each

with a constant force of the slats ensures reliable clamping of each output. 1 hp f-ly, 3 ill.

The invention relates to the processing of metals by pressure, in particular to dies for the bending and cutting of parts such as the terminals of radioelements.

The purpose of the invention is to improve the quality of the product by increasing the uniformity of the pressing of the leads of the product and their calibration.

FIG. 1 shows a stamp, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The stamp comprises a universal block including upper and lower parts connected by guide units 1, in which interchangeable working parts are installed; flexible 2 and immersion 3 dies, flexible i-punches 4, springs 5 and limiting i 6 located in the casing 7, crepe - I sliding to the lower plate 8 with sticking hooks 9. I In the upper part of the universal block there is an upper plate 10, In the central hole of which the yoke 1 1 is installed with the stops 12 on the springs 13, the hollow holder I 14 with the sections 15 of the amortization unit is attached to the upper plate 10 with the possibility of moving them horizontally using i screws 16 and nuts 17, in the lower part of the der; Zatel 14 fixed punch 18 with a cutting; edge, the central insert 19, in its ver-; ticking slots are located on both sides of the part of the pressure plates 20, on both sides of the insert 19 are mounted on the shoulder gauge plates 21, spring-loaded springs 22 to the punch 18. Brackets 23 are fixed on the side ends of the holder 14, axles 24 are mounted on a wedge 25, pressed by springs 26. The sections of the damping assembly include a body 27, a fixed axle 28, gears 29 and lath 30 lath gears, installed inter-; do gears 29, and from the outer sides of the extreme gears friction discs 31, bearing washers 32, spring 33, axially movable sleeve 34, adjusting nuts 35 and locking bar 36.

The stamp works as follows. During the working stroke of the stamp, the conclusions of the radio elements are clamped between the workers

The 0 ends of the parts of the pressure plates 20 and the upper plane of the bending die 2. Despite their different thickness, all the leads of the radio elements are reliably pressed, as the pressing force is transmitted from each

5 rails 30 sections 15 of the damping assembly through the pressure plates 20 to each terminal.

The clamping force is determined by the compression force between the gears 29 and the friction discs 31, which creates a certain and constant force on the rail 30 as it moves upwards while lowering the upper part of the die downwards due to the friction of the side surfaces of the gears 29 rotating around a fixed axis 28 o side surfaces of the friction discs 31,

5, which are mounted on a fixed axis 28 without the possibility of rotation around it, but are limitedly moving along the possibility of rotation around it, but are limitedly moving along it along with gears 29 on them under the action of spring 33 force that is controlled by nuts 35.

Independent relative to each other movement of each rail 30 under the action of parts of pressure plates 20 on them ensures reliable clamping of each output, regardless of its thickness and errors within the tolerances of manufacturing the assembly parts and its assembly, as well as the errors of the equipment on which it is installed.

Upon further movement of the upper part

0 wedge punch 25 moves 45 ° bending punch 4, which bends the outputs of the radio elements. Moving the bending punches 4 at an angle of 45 ° while bending reduces the axial force in the leads.

 and avoid breaking the coating on them due to the reduction of the frictional forces between the leads and the bending punches 4. After the end of the bending of the radio element

bending punches 4 move away from the matrix 2 under the action of springs 5, calibrating plates 21 come into operation, which fix the calibrated pins of the radio element in the bending position and then cut the pins with the cutting edge of the punch 18. .

The stamp provides effective clamping of each output of the product, which allows them to be securely fixed in the process of bending and cutting. This reduces the tensile stresses in the product leads.

Claims (2)

1. Combined action stamp for bending and cutting parts such as the outputs of radio elements, comprising a top plate with a central hole, a holder mounted on the top plate, a shock-absorbing unit, a hollow punch with a cutting edge, a composite clamp placed in the cavity of the punch and made in the form of pressure plates according to the number of pairs of product leads, the bending and cutting matrix, mounted on the bottom plate, characterized in that, in order to improve the quality of the product by increasing the uniformity of clamping of the product leads and their calibration of it is provided with a return node of clamping plates arranged in the central opening of the upper plate and made as a spring-loaded yoke for limited axial movement, the punch is provided with longitudinal rising 0 five 0 five 0 With grooves on the sides according to the number of leads of the product and two gauge plates spring-loaded to it, placed on both sides of the insert, the pressure plates are made composite, each part is installed in the corresponding insert groove with axial movement, the holder is made with a cavity in the upper part, the damping assembly is made in the form of two sections, which are symmetrically placed relative to the die axis in the holder cavity, each section of the damping assembly is made of a body with vertical directions The outer grooves on the inner surface of the side walls from the side of the punch axis, the longitudinal axis with the threaded end fixed in the opposite walls of the housing, are brushed by the number of product leads placed on the said axis with the possibility of vrasen and axial movement interconnected with the corresponding gear racks mounted vertically in the guide slots of the housing with the ability of the upper ends to interact with the spring-loaded traverse bottom ends with the corresponding parts of the pressure plates and fricks Ion disks mounted on the axis between the gears and on the outer sides of the extreme gears with the possibility of axial movement together with the gear and the pressure assembly mounted on the threaded end of the axis. 2. A stamp in accordance with claim 1, characterized in that the pressure assembly is made in the form of a spring-loaded sleeve and adjustment nuts.