Instrumental node to trim the bolt head

 

(57) Abstract:

The invention relates to the processing of metals by pressure and can be used on trim and multi-position cold machines. Instrumental node to trim the bolt head includes a housing with an aperture, a support sleeve and edged matrix. The tool Assembly is provided with an intermediate split sleeve with a conical outer surface. The hole in the body has a response intermediate split sleeve conical surface. The result is a reduction in the consumption of expensive tool material by reducing the outer diameter trimming matrix, creating conditions backlash-free mounting trim matrix in the body and increase the durability of the casing. 1 Il.

The invention relates to the processing of metals by pressure and can be used on trim and multi-position cold machines.

Famous instrumental node to trim the bolt head, which edged the matrix is fixed in the axial direction of the collar.with. The USSR 1013076, class B 21 K 1/50, 1983).

A disadvantage of the known construction is that the working tool has a collar, which uvelichivshimisya is instrumental node to trim the bolt head, comprising a housing, a support sleeve and edged matrix with thrust collar (Forging and stamping. The Handbook. Ed., A. Navrotsky, T. 3. - M.: Mashinostroenie, 1987, S. 53, Fig.15).

Famous instrumental node has the following disadvantages:

1) high intensity cutoff matrix due to the presence of the clamp;

2) cut between the matrix and the housing there is a gap;

3) the relatively rapid failure of the casing due to wear of the landing diameter under edged matrix.

The technical result of the invention is to reduce the consumption of expensive material, reaching for manufacturing trim matrix, by reducing its outer diameter and the creation of conditions backlash-free mounting trim matrix in the body, more durable chassis.

This technical result is achieved by the fact that instrumental node to trim the bolt head, comprising a housing with an aperture, a support sleeve and edged matrix according to the invention provided with an intermediate split sleeve with a tapered outer surface, the opening in the housing has a response intermediate split sleeve conical surface.

The invention is illustrated in the drawing.

Instrumental node to trim the bolt head includes a housing 1 with a tapered bore, the anchor sleeve 2, edged matrix 3 and the intermediate split sleeve 4 with a conical outer surface.

Installation tool node is as follows.

Edged matrix 3 is inserted in the intermediate split sleeve 4 and is mounted to the side of the supporting sleeve 2. Then at the intermediate split sleeve with cut matrix and the bearing sleeve is lowered body 1 to complete the contact between the mating conical surfaces (with a slight kick). The collected node is inserted in the mounting slot of the cut or multi-position cold machine.

Application of the proposed instrumental node significantly reduces the cost of the instrument, which in the end results of the bolt head, comprising a housing with an aperture, a support sleeve and edged matrix, characterized in that it has an intermediate split sleeve with a tapered outer surface, the opening in the housing has a response intermediate split sleeve conical surface.

 

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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.

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