SU1307617A1 - Die for bending and cutting leads of electronic components - Google Patents

Abstract

This invention relates to the field of radio electronics. The goal is to increase productivity in the work of the punch for bending and cutting the conclusions of radio elements and improving its operational capabilities due to the fact that it has a self-adjustment mechanism in the form of an eccentric 4 with a lever 15 and a spring-loaded slider 9, which are located in the upper plate, and a spring-loaded rod 36 in the bottom plate 7il. 3 18 27fS p / J 14 / / / / s In cl co o cr JS

Description

1 13 The invention relates to radio electronics and can be used in instrument making and mechanical engineering in the preparation of electrical and radio elements (ERE) for installation.

The purpose of the invention is to improve productivity and improve the operational capabilities of the stamp due to the fact that it is equipped with a self-tuning mechanism, implemented in the form of an eccentric with a lever and spring-loaded slider, placed in the upper plate, and a spring-loaded rod, placed on the lower plate.

Figure 1 shows the stamp in the lowest position with the treated ERE incision; in fig. 2 shows a section A-A in FIG. on fig.Z - stamp in the extreme upper position with the installed ERE, incision; figure 4 - section bb in fig.Z; fig.Z - processed ERE with curved terminals located

at a distance ht-j- from its reference

l with.

surface; figure 6 - the same, with curved leads located at the level of the supporting surface of the housing; 7 - the same, with the bent pins located below the support surface.

The stamp contains in the upper part a composite flexible punch, consisting of relatively movable in the direction of movement of the punch inner 1 and outer 2 parts. The inner part 1 of the composite bending punch has profiled lower protrusions 3 and a non-profiled end 4, a hole 5 in which the rod 6 is placed, spring-loaded 7, a groove 8 in which a slide 9 is installed with the possibility of horizontal movement and interaction of one outer side surface 10 with a stop 11, a spring-loaded spring 12, another surface 13 with an eccentric 14 connected to the lever 15, and an internal side corrugated inclined surface 16 with a corresponding corrugated side The anvil 17 of the outer part 2 of the composite bending punch installed in the groove 18 of the inner part 1 of the composite bending punch. The outer part 2 of the composite bending punch has an opening I9 in which the spring 20 and the upper part 21 of the rod 6 are placed

,

fO

20

076 5

,

 2

thirty

35

40

45

55

172

by adjusting the length of the rod 6. by means of the nut 22 and the screw 23, and the profiled lower lugs 24.

The inner part 1 of the composite bending punch is placed in the plate 25 and with its non-profiled end 4 rests on the lining 26.

The stamp in the ntshny part contains a plate 27, cutting-matrix 28, in which the placement: spring-loaded spring 29 punch-matrix 30 with upper ends 31, spring-loaded spring 32 clamp 33 with profiled protrusions 34 and spring-loaded spring 35 rod 36 with adjusting upper 37 and lower 38 nut 1 and washers 39, interacting with the eccentric 14 by means of its lever 15.

In the initial upper position of the upper part of the die, the lateral surface 10 of the slider 9 is spring-loaded with the stop 11 against the eccentric 14. In this case, the lateral corrugated inclined surfaces 16 and 17 of the slider 9 and the outer part 2 of the composite bending punch are installed with a gap (the value of which is chosen structurally), and the profiled protrusions of the spring 33 clamped by the spring 32 and the upper ends 31 of the spring-loaded spring 29 of the punch-matrix 30 are exposed from the mirror of the cutting matrix 28 to the height necessary for the eccentricity to operate ika 14 and jamming the inner 1 and outer 2 parts by composite mandrel polzushki 9 with fixed rod by actual measurement of the height from the supporting surface to the housing space ERE termination of its conclusions.

In addition, in the drawings, the bottom end surface 40 of the rod 6, the support base surface 41 of the ERE housing, the terminals ERE 42, the radio element 43 and the end surfaces 44 of the profiled lower projections 24 of the outer part 2 of the composite bending punch are indicated.

The force of the spring 12 is adjusted by the stopper 45 screwed into the plate 25, the force of the spring 20 by a nut 46 screwed into the hole 19 of the outer part 2 of the Composite bending punch, the force of the spring 7 by the nut 22 screwed into the upper part 21 of the rod 6, the force of the springs 29 and 32 - respectively sample 3130

kami 47 and 48, screwed into the plate 27, and the force of the spring 35 - adjusting nuts 37 and 38, screwed into the rod 36.

To adjust (if necessary) the working width of the rod 36 are the washers 39, mounted in the rod 36.

Dp protect the findings of the 42 ER.E. from the see these profiled lugs 34 of the clamp and the upper ends of the 31 punch-dies are made with grooves whose depth is equal to the thickness of the material of the wedge ERE.

The height is flexible from the supporting surface 41 of the ERE housing to the bent ends of the terminals 42, denoted by h. and the height of the housing ERE from its supporting (base) surface 41 to the place of sealing its conclusions - h,.

The stamp works as follows.

Before installation on the press, when removing the lower part, the stamp is adjusted to a given height of bending. To do this, a screwdriver rotates the rod 6 from the side of the lower end surface 40 and sets the size of the desired height between the end surfaces 44 of the profiled lower lugs 24 of the outer part 2 of the composite bending punch and the bottom end surface 40 of the rod 6. Then the rod 6 screwed into the nut -22, stopper with screw 23. sf

Since the rod 6 allows to adjust the stamp to different heights, its length and the spring stroke 7 must be calculated taking into account the maximum tolerance for the size of the height from the supporting surface 41 of the ERE body to the location of its terminals. After that, the upper and lower parts of the stamp are connected and placed on the press.

The stroke of the press slide is chosen from the ease of installation and removal of the ERE body from the profiled protrusions 3 of the clamp 33, the stroke of the lever 15 with the eccentric 14 and the wedging of the inner 1 and outer 2 parts of the composite bending punch by means of the slider 9 and the spring-loaded rod 36.

Next, the ERE set on the profiled protrusions 34 of the clamp 33 and lower the upper part of the stamp. In this case, the following interaction of its parts occurs. Spring loaded 74

7, the rod 6 with its lower end surface 40 abuts against the supporting surface 4 of the ERE housing, and the rod 6, squeezing the spring 7 with the lower end and with the nut 22 screwed into its upper end spring 20, simultaneously with the outer part 2 of the composite bending punch rises, while maintaining the initially adjusted height dimension is flexible between the lower end surface 40 of the rod 6 and the profiled lower lugs 24 of the outer part 2 of the composite bending punch. At the same time, the profiled lower protrusions 3 of the inner part I of the composite bending punch, while continuing to move down, abut the ERE terminals 42 installed on the profiled protrusions 34 of the presser 33, making a path equal in magnitude to the actual height of the ERE body from the place of embedding the optics in the body to the curved ends of the electrodes .

At this time, the lever 15, resting against the lower adjustment nut 38, under the action of the springs 35 mounted on the rod 36, turns the eccentric 14 upwards, which, interacting with the lateral outer surface 13 of the slider 9, makes contact of the internal inclined surface 16 of the slider 9 s corresponding inclined surface 17 of the outer part 2 of the composite bending punch and, thus, wedges the inner 1 and outer 2 parts of the composite bending punch and adjusts the inner 1 and outer 2 parts of the composite bending punch to the actual size of the height of the housing ERE from the place of sealing its findings to their curved ends, i.e. a punch self-tuning occurs at a constant, initially predetermined height are flexible from the reference (base) surface of the ERE body to the bent ends of its conclusions before the start of the operation the outputs 42 are flexible,

Upon further movement of the upper part of the punch down, the profiled lower projections 3 of the inner part I of the composite bending punch enter the cavity of the punch — the matrices 30 and perform a U-shaped bending of the pins 42. Then the end surfaces 44 of the profiled lower projections 24 of the outer part 2 of the composite bending punch The pins 42 abut against the upper ends 31 of the punch-matrix 5 13 cs 30 and under the action of the force of the spring 29, the final bending of the pins 42 of the ERE takes place.

At the end of the stroke of the die, the shaped lower protrusions 24 of the outer part 2 of the composite bending punch, abutted against the upper ends 31 of the spring-loaded punch matrix 30, are moved downward and, with their cutting edges, cut off the excess ERE pins 42 through the cutting matrix 28,

After cutting the leads 42 during the return of the press slide with the upper part of the punch, the upper (initial) position of the punch-die 30 and the presser 33 with the treated ERE, under the action of their springs 29 and 32, rise and set to the initial position, and the inner and outer 2 parts The composite bending punch, being in a wedged position, continues to move upward until the lever 15 stops against the upper adjusting nut 37, screwed into the rod 36. At this time, the stop P under the action of the spring 2 moves the slider 9 to the horizontal In this direction, its inner side inclined surface 16 moves away from the sloping surface 17 of the outer part 2 of the composite bending punch. The outer part 2 of the composite punch and the rod 6 under the action of the spring 7 and its own weight return to the initial position S while maintaining the initially adjusted bending height dimension. .

. After that, the processed ERE is removed from the profiled outputs 34 of the clamp 33, the leads are removed from the mirror of the cutting matrix 28 and the stamp is again ready for further work without any additional adjustment,

When the inner 1 and outer 2 parts of the composite bending punch are wedged at the time of contacting the side corrugated surfaces 6 and 17 of the slider 9 of the outer part 2 of the composite bending punch by means of the eccentric 14, the grooved tops of the grooves do not coincide and, as a result, the outer part 2 moves

17, 6

composite bending punch and stern 6, which is its lower end surface 40 in contact with the bearing surface of the housing ERE, up or down by an amount not more than a pitch of corrugation,

When the outer part 2 of the composite bending punch is moved downwards, the rod 6 with its lower end surface 40 presses on the ERE body and may cause its damage, and moving upwards is reflected in the accuracy of the bending height setting. To compensate for this possible movement of the rod 6 and ensure safety. The ERE housing to the constant of the size of the height of the flexible in the hole 19 of the outer part 2 of the composite bending punch over the nut 46, screwed into the upper part 21 of the rod b, is placed a spring 20.

Formula;; -the inventor

A punch for bending and cutting off the radioelements j contains the upper plate, on which the composite bending punch is installed, the morning and outer parts of which are movable one relative to the other rod mounted in the hole of the composite bending punch, the lower plate on which the podgr tknnenka is installed punch-die with clamping, characterized in that, in order to increase productivity in operation and improve operational capabilities j, it is equipped with a self-tuning mechanism 5 made. in the form of an eccentric with a lever and a sprung rubber slider placed on the top plate and a spring-loaded stem placed on the nyls slab g, the eccentric with the lever mounted to interact with the spring-loaded stem, and the slider mounted to allow horizontal movement and interaction of the outer surface with the eccentric , and the internal surface, made inclined, is the outer surface of the composite flexible punch corresponding to it

IS

jt-jt

ipt / tit

a

Editor A. Ogar

Compiled by V.Titov Tehred V.Kadar

Order 1643/57 Circulation 802 Subscription

VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, st. Project, 4

Proofreader A.Zimokosov

Claims (1)

A stamp for bending and segments of conclusions of radioelements, comprising an upper plate on which a composite bending punch is installed, the inner and outer parts of which are movable relative to one another, a rod installed in the hole of the composite bending punch, a lower plate on which a spring-loaded punch matrix with clamp, characterized in that, in order to increase productivity and improve operational capabilities, it is equipped with a self-tuning mechanism made in the form of an eccentric with a lever and a spring-loaded creep located in the upper plate and a spring-loaded rod located on the lower plate, the eccentric with the lever mounted to interact with the spring-loaded rod, and the creeper installed with the possibility of horizontal movement and interaction of the outer surface with the eccentric, and the inner surface, made inclined, - C. corresponding to the outer surface of the composite bending punch,