The stamp for the manufacture of molded products

 

(57) Abstract:

The invention relates to the processing of metals by pressure, and in particular to equipment for manufacturing of details of the type of profile bracket, and can be used in stamping. The stamp contains the upper plate installed it the first bending punch, bottom plate located therein with the possibility of vertical movement on pins and return to its original position by the elastic element to the first bending matrix, insert with groove for lateral and axial fixing of the workpiece mounted on the bottom plate; the first bending punch has a cutting surface and interacts with moving through the wedge mechanism in the horizontal plane matrix, the depth of the working surface which exceeds the speed of the second bending punch to hold the workpiece while moving the matrix helps to remove product from the zone stamp. The technical result is to increase the reliability of the stamp due to the exclusion of his jamming and improving the quality of manufactured parts due to the fixation of workpieces. 3 Il.

The invention relates to the processing of metals by pressure, namely Konecny stamp includes installed at the bottom of the stamp support for the workpiece and located in a groove of a support with the possibility of rotation of the bending die with a work area, mounted in the upper part of the die and movable toward the pole bending punch and the return mechanism, the bending of the matrix to its original position, characterized in that, with the aim of improving the quality of products with curved edges, bending the matrix is made in the form of a cylinder with an axial groove, with a working area of the matrix is placed on the upper wall of the axial groove and the bending punch is made with working insert, mounted with the possibility of accommodation in the axial groove of the matrix and education of the working gap with its working area.

Signs matching: matrix with curved work area, the return mechanism, the bending matrix (see author's certificate N 2004370, 5 B 21 D 22/02, N 45-46, 1993).

This stamp has a lack of efficiency and accuracy, which reduces the quality of the products.

Known for using this stamp contact action, containing the movable top plate with built in her punch, and a stationary bottom plate placed on it the spring-loaded matrix, characterized in that csname recesses, matrix made pie, punch - in the form of a guide element for centering the workpiece, and engravings in the sector matrices made less than the height of the workpiece. Signs matching: the punch cooperates with the spring-loaded matrix (see author's certificate N 2090295, 6 B 21 J 13/02, bull. N 26, ch. II, 1997 ).

Reasons preventing the task, when running parts with high precision, there is no possibility to make the details of the type of profile brackets.

Famous stamp for the manufacture of molded articles containing the bending punch, and installed in the hole of the die-holder bending matrix, including rotary volumetric made in the form of two shoulders arms, on some shoulders are shaping surface, while others are mounted with the possibility of interaction with the spring-loaded plungers, characterized in that, in order to improve the accuracy of product and reliability, it is equipped with node segments of the workpiece, polimetrica made with support surfaces is placed with the opportunity to interact with the bottom of the die-holder, and each plunger is made with the guide posted with the opportunity to interact with a vertically movable arise is utricularietea, the bending punch profile (see author's certificate N 2013170, 5 B 21 D 37/08, bull. N 9, 1994).

Reasons preventing the task in design is an opportunity to consider the high accuracy of the springback of the material, especially with a high coefficient of springback, which does not allow to obtain products of high quality and accuracy.

Famous stamp for the manufacture of molded articles containing mounted at the top plate has a first bending punch with cutting surface mounted on the bottom plate of the first bending matrix, the second bending punch and die, which can be adopted for the prototype (see Skvortsov, D. fundamentals of design of dies for cold forming. M: mechanical engineering, 1972, S. 333 - 334, Fig. 314). The interaction of the bending punch with a cutting surface with a matrix allows a segment of the workpiece and its removal.

However, it is possible jamming of the stamp.

The objective of the invention is to improve the reliability of the work of the stamp and quality products.

The technical result is achieved by the fact that the stamp contains mounted at the top plate has a first bending punch with cutting surface mounted on the bottom plate of the first giboreau fixation of the workpiece, matrix mounted for movement mechanism and removal of the product from the zone stamp, depth working surface which exceeds the speed of the second bending punch, with the first bending punch is mounted for engagement with the said matrix, and the first bending matrix is installed on the pins with the possibility of vertical movement and return to its original position by the elastic element.

The presence of insert with groove and holding the second workpiece bending punch allows reliable and easy to fix its width and length in the process, as well as the height, and the use of the working surface of the said matrix is greater move of the first bending punch avoids jamming of the stamp.

The proposed stamp is illustrated by drawings, where Fig. 1 depicts a stamp in section; Fig. 2 - section a-a of Fig. 1; Fig. 3 - section b-B of Fig. 1.

The stamp contains the upper plate (1) mounted inside the first bending punch (2), bottom plate (4) located in it with the possibility of vertical movement on the pins (8) and return to its original position by the elastic element (6) of the first bending matrix (7), insert (5) with groove for baculoviral and interacts with moving through the drive mechanism (10) in the horizontal plane matrix (9), the depth of the working surface which exceeds the speed of the second bending punch (3) to hold the workpiece while moving the matrix (9) helps to remove product (11) from the zone stamp.

The operation of the stamp.

The stamp is mounted in a press (not shown), in the open position of the stamp on the groove of the insert (5) is blank (12) (strip and wire), in the course of down horizontally moving through the drive mechanism (10) the matrix (9) is the source position, and the first bending punch (2) moving down, presses the workpiece (12) to the matrix (7), moving the pins (8) and mounted on an elastic element (6), when moving down the punch (2) interacts with moving in the horizontal plane matrix (9) - is the segment of the workpiece, while the second bending punch (3) holds the workpiece, preventing its displacement up in the next, interacting with the matrix (9), completes the bending process of the product (11), and matrix (7) is in contact with the bottom plate (4) is the calibration of the workpiece (12). During the reverse course of the stamp is revealed, the first bending punch (2) with the matrix (7), hold the workpiece (12), moves upward due to the elastic element (6), horizontal product (11), the second bending punch (3), moving up, is released from the workpiece (11), which through a window in the bottom plate (4) falls from the working area of the stamp, at the end of the first bending punch (2) releases the workpiece (12), and it can be made to the stamp.

The stamp for the manufacture of molded articles containing mounted at the top plate has a first bending punch with cutting surface mounted on the bottom plate of the first bending matrix, the second bending punch and the matrix, characterized in that it has installed on the bottom plate insert with groove for lateral and axial fixing of the workpiece, the matrix is mounted for movement in a horizontal plane from the drive mechanism and removal of the product from the zone stamp, depth working surface which exceeds the speed of the second bending punch, with the first bending punch is mounted for engagement with the said matrix, and the first bending matrix is installed on the pins with the possibility of vertical movement and return to its original position by the elastic element.

 

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