Blacksmith's pane for drawing of large-size shell

FIELD: metallurgy.

SUBSTANCE: invention concerns forgings and can be used while manufacturing of large-size rings and shells on press. Blacksmith's pane for drawing is implemented in the form of pane body with operational partc. Pane body corresponds plate with ribbed stiffener. Stiffeners are located from the side of operational part of pane parallel to it. From one side stiffeners are restricted by press column, and from below - cylindrical surface, corresponding to external surface of finished forging. Plate can be outfitted by additional transversal ribbed stiffener, located on its ends or out of working space of pane.

EFFECT: consequently it is provided reduction of forging labour-intensiveness and improvement of forged pieces.

3 cl, 4 dwg

 

The invention relates to forging production and can be used for the production of large diameter and the length of rings and shells.

Known for forging die used for rolling of rings and shells on the mandrel (Semenov E.I., Kondratenko V.G., Lyapunov NI "Technology and equipment of forging and die forging), mechanical engineering, 1978, p.64, RIS, b). The disadvantage of this striker is that they can forge a small length forgings, since the size of a striker in the plan are relatively small and do not exceed the size of the upper beam of the press.

Known for forging die containing the body of a striker and a working part that is located parallel to the axis of the forging and the mandrel, and used for rolling large rings and rings on the mandrel (Semenov E.I., Kondratenko V.G., Lyapunov NI "Technology and equipment of forging and die forging), mechanical engineering, 1978, p.64, is, in). The dimensions of such a striker in the plan may exceed the dimensions of the upper beam. The disadvantage of this blacksmith's striker is that in the forging of large diameter rings and shells height striker is very limited and is determined by the distance between the forging and the upper crosshead of the press. The small height of the striker with a relatively large length dramatically reduces its rigidity, which leads to bending of the edges of the striker in the forging process and reduces Rav is alrnost and the quality of the deformation work and degrades the product configuration.

The objective of the invention is to reduce the complexity of forging and improving the quality of forgings by improved design Raskatov striker thus, to provide the necessary rigidity for a great length and relatively small height of the tool.

The problem is solved due to the fact that the striker body is made in the form of a plate with ribs, which are located on the side of the working part parallel to it. While ribs are limited in the side columns of the press, and at the bottom of a cylindrical surface corresponding to the outer surface of the finished forging.

The rigidity of the proposed striker can be increased due to the additional transverse stiffeners placed on the ends of the plate or outside the working space is brisk.

The invention is illustrated by the following drawings:

1 shows a forging die for rolling large shells, where 1 is the body of the striker 2 - ribs, 3 - working part of the striker 4 is the attachment point to traverse the press.

Figure 2 presents a forging die for rolling in the work, where 5 - forging hammer for flattening, 6 - pin, 7 - piece (shell).

Figure 3 - forging hammer for flattening, where 8 is a transverse ribs located at the ends of the plate.

Figure 4 - the blacksmith's hammer for flattening, where 9 is transverse ribs are the stiffness, located outside the workspace brisk.

Does the proposed device is as follows.

Forging die 5 is attached to the upper cross beam of the press in attachment 4. Dimensions striker exceed the size of the attachment and to avoid bending it stiffeners. Due to the location of the ribs 2 in the workspace or outside the die (8 and 9)is the minimum height the volume in the working space of the press that allows you to forge them large as the diameter and the length of the shell. For forging shell 7 of the mandrel 6 is placed in the workspace. Next is to justify forging sizes by reductions procurement brisk and santovac shell on the mandrel. The layout tool and forging the forging process is shown in figure 2.

The technical result to be obtained by the use of the invention is to increase productivity and improve the quality of forgings.

1. Forging hammer for flattening large shells on the press, made in the form of striker body with working parts, characterized in that the striker body is made in the form of a plate with ribs, which are located on the side of the working part in parallel, laterally limited by the columns of the press, and the lower cylindrical surface corresponding to the outer surface of the finished pokok the large shell.

2. The hammer according to claim 1, characterized in that the plate is made with additional lateral ribs, located at its ends.

3. The hammer according to claim 1, characterized in that the plate is made with additional lateral ribs located outside the workspace brisk.



 

Same patents:

FIELD: technological processes.

SUBSTANCE: processed part is opened in core area with the help of serial forging deformations displaced at the angle relative to each other around part axis and simultaneously is placed on piercer. At that in process of forging deformations processed part is pressed to piercer with previously specified force, and piercer is moved towards this axial force, and in intervals between forging deformations following one after another it is returned in initial position synchronously with axial feed of processed part. Method is realised in device that comprises at least two forging tools that are diametrically opposite in relation to processed part, grip head with end support, axial feed and rotary drives. There is also piercer that moves axially with the help of actuator from the side of forging tools, and also working cylinder that serves for support of processed part.

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FIELD: technological processes.

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11 cl, 2 dwg, 1 ex

FIELD: technological processes.

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4 dwg

FIELD: technological processes.

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FIELD: technological processes.

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FIELD: technological processes.

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5 cl, 4 ex, 3 dwg

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FIELD: technological processes.

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FIELD: technological processes.

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5 cl, 4 ex, 3 dwg

FIELD: technological processes.

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EFFECT: improved quality of obtained item.

3 dwg

FIELD: technological processes.

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EFFECT: expansion of technological resources.

2 cl, 4 dwg

FIELD: technological processes.

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6 cl, 4 dwg, 3 ex

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EFFECT: provision of process capability widening of used equipment with serviceability and economic feasibility preservation.

20 cl, 12 dwg

FIELD: metallurgy.

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12 dwg, 6 ex

FIELD: pressure shaping; manufacture of blanks from materials at preset structure including submicro-crystalline structure and nano-crystalline structure at respective level of physico-mechanical properties.

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9 cl, 4 dwg, 1 tbl, 1 ex

FIELD: technological processes.

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EFFECT: higher quality of prepared blanks due to elimination of crack formation during upset.

2 cl, 5 dwg

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