RU2038888C1 - Cutting and molding die for manufacturing parts by elastic medium - Google Patents

Abstract

FIELD: plastic working of metals. SUBSTANCE: die has container with plunger, elastic matrix and locking mechanism. Container has closed working chamber and is provided with axial joint line for placing workpiece and replaceable associated equipment into working chamber. Locking mechanism is made in the form of casing connected with press cross-piece. Introduction of die for manufacturing large-sized parts allows working hours for manufacture of parts to be reduced by 1.5-2 times, cost of production of associated equipment to be reduced by 5-7 times, metal usage to be reduced by 1.5 times. EFFECT: simplified mechanism for retaining container against axial displacement in the process of manufacturing large-sized parts by elastic medium. 1 dwg

Description

 The invention relates to sheet stamping of parts with an elastic medium on press equipment.

 Known stamp for cutting and forming parts with an elastic medium, containing a container with a working cavity and placed in the last elastic matrix, a plunger installed with the possibility of interaction with the matrix, and a punch.

 In stamps of this type, when a plunger is introduced, vertical forces arise, which tend to move the container upward relative to the plate with the punch and workpiece mounted on it. The magnitude of this force is determined by the product of pressure on the difference between the area of the working area and the area of the plunger.

 In the aforementioned stamp design for holding the container from axial movement relative to the plate with the punch and the workpiece mounted on it, there is a mechanism made in the form of movable creepers interacting with the side surfaces of the container. The horizontal movement of the crawls is carried out by means of wedges associated with the press slider.

 This design has a limited scope.

 An object of the invention is the creation of a stamp design in which the mechanism for holding the container from axial movement relative to the plate on which the punch with the workpiece is mounted is excluded.

 To solve the aforementioned technical problem, a stamp for cutting and molding parts with an elastic medium containing a container with a working cavity and placed in the last elastic matrix, a plunger installed with the possibility of interaction with the said matrix, and a punch is provided with a holder made with a conical surface, and the container is made in the form of two identical parts with the plane of the connector along the axis of the stamp closed by the working cavity to accommodate the elastic matrix, the punch and the workpiece, and also with a conical surface for interacting with said casing surface, the latter being mounted to move along a similar surface of the container.

 The drawing shows the proposed stamp.

 The stamp consists of a container 1 with a vertical connector, covering its clips 2, suspended on spring-loaded bolts 3 to the top plate 4, and an elastic matrix 5.

 The container 1 assembly has a hollow cavity with a flat bottom for installing an interchangeable punch 6 with a flat blank 7. In the upper part of the container 1, a hole for the plunger 8 is made.

 For ease of installation of the workpiece 7 and removal of the finished part, the left half of the container 1 is fixed motionless with bolts 9 to the bottom plate 10 of horizontal movement.

 In the initial position, the upper plate 4 of the stamp with the plunger 8 and the holder 2 fixed on it is raised up, and the container 1 is opened.

 After installing the package, consisting of a punch 6, the workpiece 7 and the elastic matrix 5, the left and right parts of the container 1 are closed and fixed with a pin 11. When the yoke moves, the press holder 2 lowers into close contact with the conical surface 12 of the container 1 and stops in a spring-loaded state. With further movement of the traverse, the plunger 8 is introduced into the elastic matrix 5, creating a working pressure in it.

 After the stamping operation, the clip 2 with the plunger 8 rises, the container 1 is opened and the finished part is removed. Then the cycle of work is repeated. The design of the stamp is compact, reliable and allows to obtain ultrahigh pressures with large sizes of working areas on low-pressure presses.

 The technical and economic effect of the introduction of the stamp for cutting and molding parts with an elastic medium is achieved by simplifying the mechanism of holding the container, namely: eliminating the complicated in construction and laborious in the manufacture of plates, crawlers, wedges and replacing them with a clip.

 The introduction of the stamp for the manufacture of large-sized parts allows to reduce the complexity of 1.5-2 times, reduce the cost of manufacturing equipment by 5-7 times, reduce the metal consumption of the stamp by 1.5 times, equipment by 10-30 times.

Claims (1)

 A STAMP FOR CUTTING AND FORMING DETAILS OF AN ELASTIC ENVIRONMENT, containing a container with a working cavity with an elastic matrix placed in it, a plunger installed to interact with the matrix, a punch, characterized in that the stamp is provided with a holder made with a conical surface, and the container is made in the form two identical parts with the plane of the connector along the axis of the stamp closed by the working cavity to accommodate the elastic matrix, the punch and the workpiece and with a conical surface for interaction with the conical surface ohm, while the latter is installed with the ability to move on a similar surface of the container.

Images