Device for dispensing pipe ends

 

(57) Abstract:

The invention relates to a stamping parts from billets and can be used for distribution pipe ends. The device comprises a fixed rod, which has been consistently found to traverse the tube blank and the punch. For tubular workpiece coaxially and sequentially has two bushings without a gap between their inner surfaces and the outer surface of the workpiece. When applying effort on the traverse begins its movement along the rod together with the tube blank with sleeves. As you move the billet and the nearest to the punch sleeve is deformed. This increases the pressure of the sleeve on the workpiece normal to its outer surface, which prevents buckling of the pipe wall with her hand. 2 Il.

The invention relates to the processing of metals by pressure, namely, the stamping of parts of the billets, and can be used in aviation, shipbuilding and related industries.

A device for dispensing ends of the tubes containing the punch, guide post, a movable yoke and the tubular workpiece (N. Dist. Marin, Y. L. Willow is e, 1996, S. 71, Fig. 3.12).

A disadvantage of the known device is the limited technological capabilities due to loss of stability in the form of annular corrugations in the area of transmission.

The prototype of the present invention is a known device for dispensing pipe ends (RF patent N 2122913, B 21 D 41/02). The device comprises a yoke that is arranged to move along the fixed rod, intended for placing on her billet and carrying at the free end of the punch. Rod coaxially installed at least two billets, and the free space between them filled with a viscous mixture. On traverse set ring with the possibility of placing it between a pair of billets. When the shaping of the ends of the pipes with the help of this device reduces the likelihood of buckling of the pipe material in the area of power transmission, improving the quality of finished products at distribution of thin-walled pipes.

The disadvantage of this device is the limited technological capabilities, how to use it effectively can be provided that the production is sufficient nomenclature pipe parts with destanie aimed at expanding the technological capabilities of morphogenesis in the distribution of thin-walled pipe blanks.

This is achieved by a device for dispensing ends of the tubes containing the fixed rod, yoke, made with the possibility of movement along the rod, a punch mounted on the free end of the rod, unlike the prototype, on the rod coaxially and sequentially one after another, with no gap between the outer surface of the billet and the inner surface of the sleeves are two bushings. Closest to the punch sleeve is made of more plastic material than the material of the workpiece. When the movement of the movable beam along the rod pipe workpiece fixed on her sleeves and begins to encounter the punch. As you move the head plate billet and closest to the punch sleeve is deformed, and the pressure sleeve on the workpiece normal to its outer surface. This prevents buckling of the pipe wall with her hand, which reduces the likelihood of homeopathy billets. Consequently, increases and limit the degree of deformation process. Execution nearest to the punch sleeve from a material more ductile than the material of the workpiece, provides uniform compression of the workpiece.

The essence of the image in Fig. 2 - diagram of the device after the hand pipe ends.

The device comprises a rod 1, at the free end of which is mounted a punch 2 and the tubular billet 3. On the workpiece 3 coaxially and sequentially installed two sleeves 4 and 5, without a gap between the outer surface of the billet and the inner surface of the bushings. Closest to the punch sleeve 4 is made of more plastic material than the material of the workpiece. The mechanical part of both sleeves in contact with the movable head plate 6. The punch 2 set ring 7 for removal of the finished piece with sleeves.

The device operates as follows. On the guide rod 1 is installed sequentially traverse 6, the tubular billet 3, the sleeve 5 and 4, the punch 2. When applying a force P on the yoke 6 begins its movement along the rod 1 together with the tubular billet 3 and sleeves 4 and 5. As you move the billet 3 and sleeve 4 are deformed and accordingly increases the pressure of the sleeve on the workpiece normal to its outer surface. This prevents buckling of the pipe wall with her hand. After forming the force P on the yoke removed and applied force F on the ring, resulting in the material is the material AMG-2M, with an internal pipe diameter of 25 mm and wall thickness 1 mm For crimp sleeve was selected material is lead, the wall thickness of the sleeve 5 mm

As a result of application of the proposed device for dispensing pipe ends 20% increase in the value of the limit of deformation of pipes, without corrugations formed as a result of buckling of the pipe material.

Device for distribution of the ends of the tubes containing the fixed rod, designed for accommodation of pipe billets and carrying at the free end of the plug, yoke, made with the possibility of movement along the rod, characterized in that it is provided with two sleeves mounted on the workpiece coaxially and sequentially one after another without a gap between the outer surface of the billet and the inner surfaces, and the nearest to the punch sleeve is made from a material more ductile than the material of the tubular workpiece.

 

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