CN220144666U - V-shaped anvil block assembly - Google Patents
V-shaped anvil block assembly Download PDFInfo
- Publication number
- CN220144666U CN220144666U CN202321579875.2U CN202321579875U CN220144666U CN 220144666 U CN220144666 U CN 220144666U CN 202321579875 U CN202321579875 U CN 202321579875U CN 220144666 U CN220144666 U CN 220144666U
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- Prior art keywords
- shaped
- anvil block
- anvil
- shaped anvil
- blocks
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 4
- 238000005242 forging Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Forging (AREA)
Abstract
The utility model relates to a V-shaped anvil block assembly, which comprises two V-shaped anvil blocks; in the two V-shaped anvil blocks, one of the two V-shaped anvil blocks is a lower anvil block, the other anvil block is an upper anvil block, the lower anvil block is fixed on an outer workbench, the upper anvil block is fixed on a lifting device of an external press, and the upper anvil block is positioned right above the lower anvil block; the working surfaces of the two V-shaped anvil blocks are provided with V-shaped grooves, two side walls of each V-shaped groove are in columnar curved surface structures, and the columnar curved surface structures extend from the top of the side wall of each V-shaped groove to the bottom of the side wall of each V-shaped groove; the V-shaped anvil block is made of die steel. The utility model effectively eliminates the axial tensile stress during the drawing and avoids the generation of transverse cracks during the drawing.
Description
Technical Field
The utility model relates to the technical field of metal materials, in particular to a V-shaped anvil block assembly.
Background
In the actual production process, some steel ingots or billets with large deformation resistance and poor plasticity at high temperature inevitably generate transverse forging cracks in the drawing process, and the transverse forging cracks are expanded in the subsequent drawing process, so that forgings are scrapped. Typical materials are ferritic stainless steel, austenitic stainless steel, martensitic stainless steel, duplex stainless steel, wrought cast iron, and the like. Because of poor thermal conductivity, the materials have short columnar crystal length during crystallization, and the columnar crystal area is torn by transverse tensile stress during pulling, and enters a coarse equiaxed crystal area and cannot be cleaned.
In production practice, it is confirmed that when the upper and lower V-shaped anvils are pulled out, the transverse cracks are controlled to a certain extent, but the transverse crack problem cannot be thoroughly solved.
It is therefore desirable to provide a V-shaped anvil assembly that addresses the above-described problems.
Disclosure of Invention
The utility model aims to provide a V-shaped anvil block assembly, which effectively eliminates axial tensile stress during drawing and avoids transverse cracks during drawing.
In order to achieve the aim of the utility model, a V-shaped anvil block assembly is provided, which comprises two V-shaped anvil blocks;
in the two V-shaped anvil blocks, any one anvil block is a lower anvil block, the other anvil block is an upper anvil block, the lower anvil block is fixed on an outer workbench, the upper anvil block is fixed on a lifting device of an external press, and the upper anvil block is positioned right above the lower anvil block;
the working surfaces of the two V-shaped anvil blocks are provided with V-shaped grooves, the two side walls of the V-shaped grooves are in columnar curved surface structures, and the columnar curved surface structures extend from the top of the side walls of the V-shaped grooves to the bottom of the side walls of the V-shaped grooves;
the V-shaped anvil block is made of die steel.
Preferably, the included angle between the two side walls of the V-shaped anvil block is 90-135 degrees.
Further, the included angle between the two side walls of the V-shaped anvil block is 110 degrees.
Preferably, the top of the columnar curved structure is flush with the top of the V-shaped anvil block.
Specifically, the V-shaped anvil block is made of 5CrNiMo.
Compared with the prior art, the V-shaped anvil block assembly has the advantages that:
(1) The flat working surface of the V-shaped anvil block is changed into a cylindrical surface, and axial tensile stress is well changed into compressive stress during drawing, so that the axial tensile stress is eliminated, transverse cracks of blanks and steel ingots are avoided, the forging yield is improved, and the cost is reduced;
(2) Simple structure and convenient use.
Drawings
Fig. 1 is a schematic structural view 1 of a V-shaped anvil block in the present embodiment;
fig. 2 is a front view of the V-shaped anvil block in this embodiment;
fig. 3 is a schematic view of an operating state of a V-shaped anvil assembly according to the present embodiment;
fig. 4 is a schematic structural view 1 of a V-shaped anvil block in this embodiment.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples.
The V-shaped anvil block assembly comprises two V-shaped anvil blocks 1;
in the two V-shaped anvil blocks 1, any one anvil block is a lower anvil block, the other anvil block is an upper anvil block, the lower anvil block is fixed on a workbench outside, the upper anvil block is fixed on a lifting device of an external press, and the upper anvil block is positioned right above the lower anvil block.
The working surfaces of the two V-shaped anvil blocks 1 are provided with V-shaped grooves 2, as shown in fig. 1, two side walls of each V-shaped groove 2 are in a columnar curved surface structure 3, and the columnar curved surface structures 3 extend from the top of the side wall of each V-shaped groove 2 to the bottom of the side wall of each V-shaped groove 2.
The V-shaped anvil block 1 is made of die steel. Specifically, in this embodiment, the V-shaped anvil block 1 is made of 5CrNiMo.
In addition, as shown in fig. 2, the included angle beta between the two side walls of the V-shaped anvil block 1 is 90-135 degrees, which is due to the fact that the transverse cracking prevention performance is optimal when the included angle is 90-135 degrees, meanwhile, the diameter range of the 90-135 degrees anvil is large, the compaction effect is good, and the V-shaped included angle can be adjusted according to the high temperature plasticity, the compaction requirement and the forging diameter range requirement of the forging piece. In this embodiment, the angle β between the two sidewalls of the V-shaped anvil block is 110 °.
As shown in fig. 3, when the two V-shaped anvil blocks 1 of the present embodiment are used to forge the steel ingot 4, the axial tensile stress is well changed into compressive stress during drawing, so that the axial tensile stress is eliminated, the transverse cracks of the ingot and the steel ingot are avoided, the forging yield is improved, and the cost is reduced. When the traditional V-shaped anvil with a flat working surface is pressed down, the whole anvil width is simultaneously contacted with the blank, the lateral crack is controlled by the side fillet, the blank outside the anvil is not pressed down, a tension state and a counter-tension state are formed between the blank below the anvil and the unpressed material, and the side edge of the anvil forms the crack; the V-shaped anvil block in the embodiment is of a cylindrical curved surface structure, the top of the cylindrical curved surface structure starts to gradually press down when the anvil is pressed down, the problem of lateral downward pulling of the anvil does not exist, the anvil is gradually pressed down and widened along with the pressing down of the anvil in the axial direction, the state of free surface of pulling does not exist, and the anvil is in a state without axial tensile stress, so that the problem of transverse cracking is solved.
In this embodiment, as shown in fig. 4, the top of the columnar curved surface structure 3 is flush with the top of the V-shaped anvil block 1, and when forging the steel ingot meeting the minimum size of the V-shaped anvil block 1, the working surfaces of the two V-shaped anvil blocks 1 collide with each other, so that the top of the columnar curved surface structure 3 is effectively prevented from being damaged by collision, and the forging of the steel ingot is affected.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (5)
1. The V-shaped anvil block assembly is characterized by comprising two V-shaped anvil blocks;
in the two V-shaped anvil blocks, any one anvil block is a lower anvil block, the other anvil block is an upper anvil block, the lower anvil block is fixed on an outer workbench, the upper anvil block is fixed on a lifting device of an external press, and the upper anvil block is positioned right above the lower anvil block;
the working surfaces of the two V-shaped anvil blocks are provided with V-shaped grooves, the two side walls of the V-shaped grooves are in columnar curved surface structures, and the columnar curved surface structures extend from the top of the side walls of the V-shaped grooves to the bottom of the side walls of the V-shaped grooves;
the V-shaped anvil block is made of die steel.
2. A V-shaped anvil assembly according to claim 1 wherein the angle between the side walls of said V-shaped anvil is between 90 ° and 135 °.
3. A V-shaped anvil assembly according to claim 2 wherein the angle between the side walls of said V-shaped anvil is 110 °.
4. A V-shaped anvil assembly according to any one of claims 1-3 wherein the top of said cylindrical curved surface structure is flush with the top of said V-shaped anvil.
5. A V-shaped anvil assembly according to any one of claims 1-3 wherein said V-shaped anvil is of a material of 5CrNiMo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321579875.2U CN220144666U (en) | 2023-06-20 | 2023-06-20 | V-shaped anvil block assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321579875.2U CN220144666U (en) | 2023-06-20 | 2023-06-20 | V-shaped anvil block assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220144666U true CN220144666U (en) | 2023-12-08 |
Family
ID=89008687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321579875.2U Active CN220144666U (en) | 2023-06-20 | 2023-06-20 | V-shaped anvil block assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220144666U (en) |
-
2023
- 2023-06-20 CN CN202321579875.2U patent/CN220144666U/en active Active
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