SU1465151A1 - Die for bending sheet blanks - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to the tooling for bending sheet blanks. The goal is to increase the convenience of servicing the stamp. The stamp contains a matrix and a punch (P), in the slots of which are placed interconnected and spring-loaded one to another plate of the end draft (PTO). In П, the mechanisms for the introduction of the VET into the working position are also mounted, each of which includes a two-sided wedge with a spring-loaded cross-member attached to it, interacting with the VET. The drive of the PTO entry mechanisms is made in the form of rotary supports fixed on the axis and fitted with a handle. During the first run of the press, P performs the bending of the part when moving out of the working area of the supports and closed VET. During the second press run, the supports are introduced into the work area. The traverses, when they come into contact with the supports, move the wedge upwards and open the VET, transfer them to the working position, and the latter, acting on the ends of the workpiece, produce a draft. Then, the part is calibrated when the VET is closed, 5 or more. o (l

Description

one

The invention relates to the processing of metals by pressure, in particular to the tooling for bending sheet blanks.

The purpose of the invention is to improve serviceability.

FIG. 1 shows the matrix in the plan; in fig. 2 shows a section A-A in FIG. 1, a stamp in the position of upsetting the part along the ends; in fig. 3 - the same, the stamp in the position of the flexible parts; figure 4 - punch, top view; in fig. 5 is a section BB in FIG. 4, the punch in the position of precipitation details On the ends.

The stamp contains a matrix 1 with bending edges 2 and an adjustable stop 3 for fixing the workpiece, as well as a punch 4 with grooves 5, made under its supporting part 6 parallel to the bending edges 2 of the matrix 1. In the grooves 5 there are plates of end seam 7, for example, U-shaped forms interconnected and spring-loaded to each other by springs 8. In the punch 4 there are mounted driving mechanisms for inserting plates of end face precipitation 7 into the working position, each of which is made in the form of a double-sided wedge 9 mounted with the possibility of Stand with plates 7, and fixed on the wedge with screws 10 traverse 11, spring-loaded spring 12 to the punch 4. The support part 6 of the latter is made with a width that exceeds the width of its working part in the direction

four

ABOUT

listened to

the bending edges 2 of the matrix 1; Two peripheral holes 14 are made in the peripheral portions 13 of the support part 6 of the punch 1; these holes are secured from blocking by the guard 15. The drive of the mechanisms for inserting the plates 7 into the working position includes two rotating supports 16, The assembly of the punch provides the convenience of its maintenance, as well as reliable insertion of the plates into the working position and withdrawal from HerOj, which allows for high-quality stamping of the part. Invention Formula

Stamp for bending sheet slag

Interoperable, containing a matrix, a punch with the corresponding traverse 11 and rigidly connected with the edges of the axis 17 fixed in the matrix 1. To turn the supports 16, there is a handle 18.

Shtamp) works as follows ..

The workpiece 19 is laid on the matrix 1 up to the stop 3. The handle 18 draws the support 1b to the right. During the upward traverse of the press, the billet 19 of the vtsu-20 is spring-loaded, one to the other, the support falls in contact with the punch 4, and the part is flexible. At this moment, the plates 7 are in the closed position under the influence of the springs 12, and the wedge is placed in the connector of the plates 7. When lowering the crosshead of the press, the punch 4 leaves the die 1. Turning the handle 18 to the left, install the supports 16 under the corresponding crossbars 11. the second course of the traverse of the press upward support 16, impact on the traverse 11, move-. wedge 9. up. who are pushing the plates 7, translating them into

working position. The plates 7 of the entry sediment in the working position extend 3 contact with the ends of the part, especially in the form fixed in the matrix. The third stroke of the press, the axle and pivot bearings, are rigidly connected with the axles mounted on the edges and installed by the frames 16, which are calibrated by means of punches, made under its supporting part along the bending edges of the die, and placed in the grooves face precipitation plates with drive 15 mechanisms for their introduction into the working position, characterized in that, in order to improve serviceability, the end face precipitation plates are connected to one another and

a part of the punch is made with a width exceeding the width of its working part in the direction of the bending edges of the matrix, and two holes located in its peripheral areas. Each mechanism for inserting the end face plates into the working position is made in the form of a two-sided wedge placed in the corresponding the hole of the punch with the possibility of contact with the plasters of face precipitation, and the traverse mounted on the wedge, spring-loaded to the punch, and the drive of the insertion mechanisms of the torus30

Sleep 4 details 19.

with the possibility of interaction with the corresponding traverses.

wok containing matrix punch with

spring-loaded one .to another, supporting

grooves made under its supporting part along the bending edges of the die, and placed in the grooves by the plates of the end draft with the driving mechanisms for their entry into the working position, characterized in that, in order to increase the serviceability, the end fall plates are connected to each other and

spring-loaded one .to another, supporting

sludge to the working position is completely in the form of an axis fixed in the matrix and rotary supports rigidly connected to the edges of the axis and installed

a part of the punch is made with a width exceeding the width of its working part in the direction of the bending edges of the matrix, and two holes placed in its peripheral areas., each mechanism for inserting the end face plates into the working position is made in the form of a two-sided wedge placed in the corresponding hole a punch with the possibility of engaging with plasters of face precipitation, and a traverse attached to the wedge attached to the wedge, which is spring-loaded to the plunger, and the drive of the insertion mechanisms of the torus

 precipitation into the working position is complete in the form of an axis fixed in the matrix and rotary supports rigidly connected to the edges of the axis and installed

with the possibility of interaction with the corresponding traverses.

and

N

6 7,

19 4

FIG. 2

Fig.Z

13

B: ±. 15

Claims (1)

SUMMARY OF THE INVENTION A stamp for bending sheet blanks containing a die, a punch with grooves made under its supporting part along the bending edges of the matrix, and end-upset plates placed in the grooves with drive mechanisms for their entry into the working position, characterized in that, in order to increase convenience servicing, face upsetting plates are connected to each other and spring loaded one. to the other, the supporting part of the punch is made with a width exceeding the width of its working part in the direction of the bending edges of the matrix, and two holes By means of the components located on its peripheral sections, each mechanism for introducing end-upset plates into the working position is made in the form of a two-sided wedge placed in the corresponding hole of the punch with the possibility of interaction with the end-upset plungers, and a traverse mounted on the wedge spring-loaded to the punch, and the drive mechanisms input plate mechanical upsetting in the working position is made in the form of an axis fixed in the matrix and rotary bearings, rigidly connected with the edges of the axis and installed with the possibility of interaction with sponds traverses. b £ 7 AA-4/5 Fig Fie 5