Stamp to obtain product type panela with ribs

 

The invention relates to the processing of metals by pressure and can be used in forging and stamping upon receipt of long panels with ribs. The stamp contains the stationary part connected to the console of the movable part of the hinge, the axis of which is perpendicular to the plane of its movement. Cantilever movable part is divided into sections preliminary molding, extrusion ribs and final moulding with successively increasing depth streams. The axis of the hinge is located eccentrically relative to the axis of rotation of the movable part. Specified movable part is divided into sections having longitudinal and transverse streams. The depth of the streams sequentially increases in a direction from the hinge. The result is the expansion of the functionality of the stamp. 3 Il.

The invention relates to the processing of metals by pressure and can be used in forging and stamping upon receipt of long panels with ribs.

Known sheet metallocene stamp to obtain products with ribs, containing the base, the lower stationary part (matrix), konsolen the real plane. The movement is in an arc of a circle that is drawn around an axis of rotation coincident with the attachment of the movable part to the stationary (Romanovsky, C. P. Handbook on the cold sheet metal stamping. L., engineering, S. 448).

The disadvantage of this device is its applicability to process only sheet blanks limited length Prototype of the proposed invention is a stamp for receiving articles such as panels with ribs, comprising a fixed part connected to the console of the movable part of the hinge, the axis of which is perpendicular to the plane of its movement, the cantilever movable part is divided into sections preliminary molding, extrusion ribs and final moulding with successively increasing depth streams (EN 2020021 C1, published. 30.09.94).

In the proposed invention is achieved technical result consists in expanding the functionality of the device by obtaining the ribs in two mutually orthogonal directions while simultaneously complete the design of the ribs in height.

This technical result is achieved as follows.

Stamp to obtain product type pan the hinge perpendicular to the plane of movement of the cantilever movable part. Cantilever movable part is divided into sections preliminary molding, extrusion ribs and final moulding with successively increasing depth streams.

The stamp difference is that the axis of the hinge is located relative to the axis of rotation of the cantilever movable part with eccentricity. Cantilever movable part is divided into sections having longitudinal and transverse streams, the depth of which increases sequentially in the direction from the hinge.

The invention is illustrated in the drawing, where Fig.1, 2, 3 shows the serial position of the original piece in the stamping process.

Stamp to obtain product type panels with ribs contains the stationary part 1, connected to the console of the movable part 2 hinge 3. The 4 swivel axis 3 perpendicular to the plane of movement of the cantilever movable part 2. Cantilever movable part 2 is divided into section 5 of the provisional molding, plot 6 extrusion of ribs and section 7 of the final moulding. Each parcel has longitudinal and transverse streams 8, the depth of which increases sequentially in the direction from the hinge.

Axis 4 of the hinge 3 is located eccentrically relative who works as follows.

Cantilever movable part 2 is raised to its original position.

The workpiece is fed into the gap between the movable part 2 and the fixed part 1 in the direction of arrow A (Fig.1) from the side of the hinge 3. Then, the movable part 2 is lowered and interacts with the original workpiece 10.

First, the initial portion of the workpiece 10 hits to the site 5, where it is pre-formed using 8 streams with the smallest depth.

Then, the workpiece 10 is moved through the gap in the direction of a step, the value of which is less than the length of the formatted area of the workpiece. The step size is 2/3-3/4 the length of this section. In this initial part of the workpiece 10 held preliminary forming, get on the site 6. The movable part 2 is lowered further and in this part of the workpiece 10 is squeezing the edges of streams 8, which has a depth greater than the depth of the streams on the site 5.

At the same time following the initial portion of the workpiece 10, getting on a plot of 5, is subjected to preliminary molding.

The workpiece 10 is moved through the gap in the direction And at the next step. The initial part of the workpiece 10 held the sections 5 and 6, and having respectively the pre-formok oshodi final molding using streams 8, having the greatest depth.

At this time the following for the initial part of the workpiece 10, which arrives at a site 6, the stage extrusion ribs, and on another part of the workpiece 10 within the die and located on section 5, is pre-formed.

Then, the movable part 2 under the action of the actuator rises to its original position.

The stamp is ready for the next cycle of operation. The workpiece 10 is moved through the gap in the direction And at the next step and is described above sequence of operations.

The presence of eccentricity provides preferential movement of the metal during deformation of the workpiece in a direction coincident with the direction of feed of the workpiece, and this in turn leads to the possibility of receiving the ribs in two mutually orthogonal directions while simultaneously complete the design of the ribs in height.

Claims

Stamp to obtain product type panels with ribs, comprising a fixed part connected to the console of the movable part of the hinge, the axis of which is perpendicular to the plane of its movement, the cantilever movable part is divided into sections predvaritelnoe streams, characterized in that the axis of the hinge is located relative to the axis of rotation of the movable part with eccentricity, with cantilever movable part is divided into sections having longitudinal and transverse streams, the depth of which increases sequentially in the direction from the hinge.

 

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FIELD: metal working.

SUBSTANCE: hard alloy matrix has casing, bushing pressed in the case and hard alloy insertion. Bushing has multifaced hole. Hard alloy insertion is composed by several sections made in form of trapezoidal-section prisms which have cut angles at their non-working edges. Number of sections corresponds to number of faces of item to be headed. Cuts of angles are made symmetrically to faces of working edge. Slits are made in several places of multifaced hole bushing at the ponts where faces cross each other.

EFFECT: improved resistance of matrix; simplified assembly.

3 cl, 1 dwg

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