Oxygen lance nozzle forging and pressing die

Abstract

The utility model belongs to the technical field of forging and pressing processing, and particularly relates to an oxygen lance nozzle forging and pressing die which comprises a lower die fixing frame, the lower die fixing frame is connected with an upper die fixing plate in a sliding mode through a positioning assembly, an upper die is fixedly connected below the upper die fixing plate, a lower die assembly is fixedly connected above the lower die fixing frame, and the lower die assembly comprises a lower die fixing base. The lower die fixing base is fixedly connected with the lower die fixing frame, a lower die block is fixedly connected into the lower die fixing base, a center block is arranged in the center of the lower die block, a plurality of oxygen column blocks are arranged between the lower die block and the center block, and the center block can move up and down to drive the oxygen column blocks to be away from or close to the lower die block. The oxygen lance nozzle demoulding device has the advantages that the conception is ingenious, the structure is reasonable, the oxygen lance nozzle which is light in weight, cannot cause overweight of products and does not need to be subjected to subsequent processing to remove redundant materials can be produced, and the demoulding problem of the oxygen lance nozzle is ingeniously solved.

Description

Technical Field

[0001] This utility model belongs to the field of forging and pressing technology, and in particular relates to an oxygen lance nozzle forging die. Background Technology

[0002] The oxygen lance is one of the key pieces of equipment in converter steelmaking. As the core component of the oxygen lance, the quality of the oxygen lance nozzle directly affects the steelmaking effect and efficiency. During the manufacturing process of the oxygen lance nozzle, the forging process is crucial. To facilitate the demolding of the blank, the oxygen column of the oxygen lance nozzle is typically designed as... Figure 10 The structure shown has an oxygen column designed vertically near the center of the nozzle for easy demolding. However, this structure not only increases the weight of the copper material in the oxygen lance nozzle, raising material costs and resulting in an overweight product, but also requires the removal of excess copper blanks through machining, significantly increasing processing costs. Furthermore, subsequent processing leads to inconsistent quality and difficulty in controlling precision in the oxygen lance nozzles, directly affecting their performance. Therefore, a reasonable design of the oxygen lance nozzle forging die structure is crucial for forging and producing... Figure 9 The problem to be solved is to improve the structure of the oxygen lance nozzle and ensure that the oxygen lance nozzle can be smoothly detached from the mold cavity. Utility Model Content

[0003] The main technical problem to be solved by this utility model is to provide an oxygen lance nozzle forging die that can produce oxygen lance nozzles with reasonable structure, light weight, no excessive product weight, and no need for subsequent processing to remove excess material.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] An oxygen lance nozzle forging die includes a lower die fixing frame. An upper die fixing plate is slidably connected to the lower die fixing frame via a positioning component. An upper die is fixedly connected below the upper die fixing plate. A lower die assembly is fixedly connected above the lower die fixing frame. The lower die assembly includes a lower die fixing seat, which is fixedly connected to the lower die fixing frame. A lower module is fixedly connected inside the lower die fixing seat. A center block is set at the center of the lower module. Multiple oxygen columns are arranged in a ring around the center block. The center block can move up and down to move the oxygen columns away from or closer to the lower module. A lower die blocking block is slidably connected between each pair of oxygen columns. The lower die fixing frame is provided with an ejection component for ejecting the center block upwards and a moving component for moving the lower die blocking blocks up and down.

[0006] The following are further optimizations of the above technical solution by this utility model:

[0007] A second arc surface is provided on the side of the oxygen column block away from the center block. A first arc surface is provided at the position corresponding to the second arc surface of the lower module. The first arc surface and the corresponding second arc surface together form an oxygen column cavity for forging the oxygen column.

[0008] Further optimization: The center block has an inverted frustum-shaped structure, and the oxygen column block is slidably connected to the center block through a guide assembly.

[0009] Further optimization: The guide component includes a slider, which is fixedly connected to the oxygen column block. A groove is provided on the outer circular surface of the center block at a position corresponding to the slider, and the slider is slidably connected to the groove.

[0010] Further optimization: Each position in the lower module corresponding to the oxygen column block is provided with a receiving hole, and a tension spring is installed in the receiving hole. One end of the tension spring is fixedly connected to the lower module, and the other end is fixedly connected to the corresponding oxygen column block.

[0011] Further optimization: The lower mold fixing frame includes a lower mold base plate, and a lower mold support plate is fixedly connected to the upper part of the lower mold base plate through a connecting plate. The lower mold fixing seat is fixedly connected to the lower mold support plate.

[0012] Further optimization: The ejection assembly includes an ejection rod, which is slidably connected to the lower mold fixing frame. The upper end of the ejection rod passes through the lower mold fixing seat and the lower module and extends to the bottom of the center block.

[0013] Further optimization: The moving component includes a support weight, which is located between the lower mold base plate and the lower mold support plate. The lower end of the lower mold block passes through the lower module, the lower mold fixing seat and the lower mold support plate and is fixedly connected to the support weight. The lower mold block is slidably connected to the lower module, the lower mold fixing seat and the lower mold support plate.

[0014] Further optimization: A lifting ring is set below the lower mold base plate, and more than four lifting columns are fixed to the top surface of the lifting ring. The upper end of the lifting columns passes through the lower mold base plate and extends to the bottom of the supporting weight.

[0015] Further optimization: A support block is slidably connected to the top surface of the lower mold base plate.

[0016] This utility model adopts the above-mentioned technical solution, with ingenious conception and reasonable structure. It can produce a lightweight oxygen lance nozzle that does not cause the product to be overweight and does not require subsequent processing to remove excess material. It also cleverly solves the demolding problem of the oxygen lance nozzle. After forging, the upper die is raised, and the supporting block moves away from the supporting weight. Under its own weight, the supporting weight drives the lower die block to move downward, thereby forming a gap between the oxygen column blocks. The ejector rod moves upward, which in turn pushes the center block upward. While ejecting the oxygen lance nozzle, the center block can also drive the oxygen column block away from the lower die, thereby increasing the space of the oxygen column cavity. This ensures that the tilted oxygen column can be smoothly removed from the oxygen column cavity, and finally the oxygen lance nozzle can be successfully removed.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the forging structure in an embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional view of the demolded structure in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the lower mold assembly in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the central block in an embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the oxygen column block in an embodiment of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the moving component in an embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of the lower mold fixing frame in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the oxygen gun nozzle in an embodiment of this utility model;

[0027] Figure 10 This is a schematic diagram of the structure of the old oxygen lance nozzle in an embodiment of this utility model.

[0028] In the diagram: 1-Lower mold fixing frame; 101-Lower mold base plate; 102-Connecting plate; 103-Lower mold support plate; 104-Support column; 2-Positioning component; 201-Positioning sleeve; 202-Positioning column; 3-Upper mold fixing plate; 4-Upper mold; 5-Lower mold component; 501-Lower mold fixing seat; 502-Lower module; 5021-First arc surface; 503-Center block; 5031-Slide groove; 504-Oxygen column block; 5041-Second arc surface; 5042-Slider; 505-Lower mold blocking block; 506-Tension spring; 6-Ejection component; 601-Ejection rod; 7-Moving component; 701-Support weight; 702-Lifting column; 703-Lifting ring; 8-Lifting block; 9-Oxygen gun nozzle; 901-Oxygen column. Detailed Implementation

[0029] like Figure 1-9As shown, an oxygen lance nozzle forging die includes a lower die fixing frame 1. The lower die fixing frame 1 is slidably connected to an upper die fixing plate 3 via a positioning component 2. An upper die 4 is fixedly connected below the upper die fixing plate 3. A lower die component 5 is fixedly connected above the lower die fixing frame 1. A die cavity for forging an oxygen lance nozzle 9 is provided between the upper die 4 and the lower die component 5.

[0030] In use, the lower die fixing bracket 1 is installed on the forging press platform, and the upper die fixing plate 3 is installed on the press head of the forging press.

[0031] The lower mold assembly 5 includes a lower mold fixing seat 501, which is fixedly connected to the lower mold fixing frame 1. A lower module 502 is fixedly connected inside the lower mold fixing seat 501. A central block 503 is provided at the center of the lower module 502. Five oxygen pillar blocks 504 are provided between the lower module 502 and the central block 503. The five oxygen pillar blocks 504 are arranged in a ring around the central block 503.

[0032] The number of oxygen column blocks 504 matches the number of oxygen columns 901 in the oxygen lance nozzle 9. In addition to this embodiment, the number of oxygen column blocks 504 can also be three, four or more.

[0033] A second arc surface 5041 is provided on the side of the oxygen column block 504 away from the center block 503. A first arc surface 5021 is provided at the position corresponding to the second arc surface 5041 on the lower module 502. The first arc surface 5021 and the corresponding second arc surface 5041 together form an oxygen column cavity for forging the oxygen column 901.

[0034] The center block 503 has an inverted frustum-shaped structure, and the oxygen column block 504 is slidably connected to the center block 503 through a guide assembly.

[0035] With this design, the central block 503 can move up and down, which can move the oxygen column block 504 away from or closer to the lower module 502. This makes it easier to forge the oxygen lance nozzle 9 when the oxygen column block 504 is close to the lower module 502, and to increase the space of the oxygen column cavity when the oxygen column block 504 is away from the lower module 502, thereby ensuring that the oxygen lance nozzle 9 can be easily removed from the lower mold assembly 5.

[0036] The guide assembly includes a slider 5042, which is fixedly connected to the oxygen column block 504. A groove 5031 is provided on the outer circular surface of the center block 503 at a position corresponding to the slider 5042, and the slider 5042 is slidably connected to the groove 5031.

[0037] Both slider 5042 and groove 5031 have a "T" shaped cross-section.

[0038] The oxygen column blocks 504 are slidably connected to each other by a lower mold block 505.

[0039] With this design, when the oxygen column 504 is close to the lower module 502, the lower mold blocking block 505 is used to block the gap between each pair of oxygen column 504.

[0040] Each of the lower module 502 has a receiving hole at a position corresponding to the oxygen column block 504. A tension spring 506 is installed in the receiving hole. One end of the tension spring 506 is fixedly connected to the lower module 502, and the other end is fixedly connected to the corresponding oxygen column block 504.

[0041] This design ensures that the oxygen column block 504 remains close to the lower module 502 during the up-and-down movement of the central block 503.

[0042] The lower mold fixing frame 1 is provided with an ejection component 6 for ejecting the center block 503 upward and a moving component 7 for moving the lower mold blocking block 505 up and down.

[0043] The lower die fixing frame 1 includes a lower die base plate 101, which is fixedly installed on the forging press platform. A lower die support plate 103 is fixedly connected above the lower die base plate 101 via a connecting plate 102. The lower die fixing seat 501 is fixedly connected to the lower die support plate 103.

[0044] Multiple support columns 104 are fixedly connected between the lower mold base plate 101 and the lower mold support plate 103, thereby enhancing the strength of the lower mold fixing frame 1.

[0045] The ejector assembly 6 includes an ejector rod 601, which is slidably connected to the lower mold fixing frame 1. The upper end of the ejector rod 601 passes through the lower mold fixing seat 501 and the lower module 502 and extends to the bottom of the center block 503.

[0046] The forging press platform is equipped with a first drive device for driving the ejector rod 601 to move up and down.

[0047] The first driving device is a linear drive device such as a pneumatic cylinder or a hydraulic cylinder.

[0048] The moving component 7 includes a support weight 701, which is located between the lower mold base plate 101 and the lower mold support plate 103. The lower end of the lower mold block 505 passes through the lower module 502, the lower mold fixing seat 501 and the lower mold support plate 103 and is fixedly connected to the support weight 701. The lower mold block 505 is slidably connected to the lower module 502, the lower mold fixing seat 501 and the lower mold support plate 103. The support weight 701 can drive the lower mold block 505 to move downward, so that the lower mold block 505 is disengaged from the gap between the oxygen column blocks 504.

[0049] A lifting ring 703 is provided below the lower mold base plate 101. Four lifting columns 702 are fixed to the top surface of the lifting ring 703. The upper ends of the lifting columns 702 pass through the lower mold base plate 101 and extend to the bottom of the support weight 701.

[0050] In addition to this embodiment, the number of lifting columns 702 can also be three or four or more.

[0051] A second drive device is installed on the forging press platform to drive the lifting ring 703 to move up and down. The lifting ring 703 moves upward and then drives the lower die block 505 to move upward through the lifting column 702 and the support weight 701.

[0052] The second drive device is a linear drive device such as a pneumatic cylinder or a hydraulic cylinder.

[0053] A lifting block 8 is slidably connected to the top surface of the lower mold base plate 101.

[0054] A third drive unit is installed on the forging press platform to drive the horizontal movement of the lifting block 8.

[0055] The third driving device is a linear drive device such as a pneumatic cylinder or a hydraulic cylinder.

[0056] With this design, after the lifting column 702 lifts the supporting weight 701, the third drive device drives the lifting block 8 to move between the lower die base plate 101 and the supporting weight 701, thereby forming an effective lifting support for the lower die block 505, which can withstand greater pressure during the forging process of the oxygen lance nozzle 9.

[0057] The surfaces of the supporting weight 701 and the lifting block 8 that are close to each other are both inclined surfaces.

[0058] When in use, the oxygen lance nozzle blank is placed into the mold cavity. At this time, the lifting block 8 is located below the support weight block 701, which forms an effective lifting support for the lower mold block 505. The forging press then operates to perform the forging operation.

[0059] After forging is completed, the upper die 4 is lifted, the lifting block 8 moves away from the supporting weight block 701, and the supporting weight block 701 moves the lower die blocking block 505 downward under its own weight, thereby forming gaps between the oxygen column blocks 504.

[0060] The first driving device drives the ejector rod 601 to move upward, which in turn presses the center block 503 to move upward. Since the center block 503 has an inverted truncated cone structure, while ejecting the oxygen lance nozzle 9, the center block 503 can drive the oxygen column block 504 away from the lower module 502, thereby increasing the space of the oxygen column cavity. This ensures that the inclined oxygen column 901 can smoothly detach from the oxygen column cavity, and finally the oxygen lance nozzle 9 can be successfully removed.

[0061] Before the re-forging, the first drive device drives the ejector rod 601 away from the center block 503, presses the center block 503 back into the lower module 502, and drives the oxygen column blocks 504 closer to the lower module 502. A gap is generated between the oxygen column blocks 504 and the gap gradually increases until it can accommodate the lower die block 505 to seal it.

[0062] The second drive device drives the lifting ring 703 to move upward, which in turn drives the lifting column 702 to lift the support weight 701. The support weight 701 drives the lower mold block 505 to move upward, so that its upper part enters the gap between the oxygen column blocks 504. The third drive device drives the lifting block 8 to move below the support weight 701, which forms an effective lifting support for the lower mold block 505.

[0063] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. An oxygen lance nozzle forging die, comprising a lower die fixing frame (1), wherein the lower die fixing frame (1) is slidably connected to an upper die fixing plate (3) via a positioning component (2), characterized in that: An upper mold (4) is fixedly connected to the lower part of the upper mold fixing plate (3), and a lower mold assembly (5) is fixedly connected to the upper part of the lower mold fixing frame (1). The lower mold assembly (5) includes a lower mold fixing seat (501), which is fixedly connected to the lower mold fixing frame (1). A lower module (502) is fixedly connected inside the lower mold fixing seat (501). A center block (503) is provided at the center of the lower module (502). A space is provided between the lower module (502) and the center block (503). There are multiple oxygen columns (504), which are arranged in a ring around the central block (503). The central block (503) can move up and down to move the oxygen columns (504) away from or closer to the lower module (502). The oxygen columns (504) are slidably connected to each other by a lower mold block (505). The lower mold fixing frame (1) is provided with an ejection component (6) for ejecting the central block (503) upward and a moving component (7) for moving the lower mold block (505) up and down.

2. The oxygen lance nozzle forging die according to claim 1, characterized in that: The oxygen column block (504) has a second arc surface (5041) on the side away from the center block (503). The lower module (502) has a first arc surface (5021) at the position corresponding to the second arc surface (5041). The first arc surface (5021) and the corresponding second arc surface (5041) together form an oxygen column cavity for forging the oxygen column (901).

3. The oxygen lance nozzle forging die according to claim 2, characterized in that: The central block (503) has an inverted frustum structure, and the oxygen column block (504) is slidably connected to the central block (503) through a guide assembly.

4. The oxygen lance nozzle forging die according to claim 3, characterized in that: The guide assembly includes a slider (5042), which is fixedly connected to the oxygen column block (504). A groove (5031) is provided on the outer circular surface of the center block (503) at a position corresponding to the slider (5042), and the slider (5042) is slidably connected to the groove (5031).

5. The oxygen lance nozzle forging die according to claim 4, characterized in that: The lower module (502) has a receiving hole at the position corresponding to the oxygen column block (504). A tension spring (506) is installed in the receiving hole. One end of the tension spring (506) is fixedly connected to the lower module (502), and the other end is fixedly connected to the oxygen column block (504) corresponding to it.

6. The oxygen lance nozzle forging die according to claim 5, characterized in that: The lower mold fixing frame (1) includes a lower mold base plate (101), and a lower mold support plate (103) is fixedly connected above the lower mold base plate (101) via a connecting plate (102). The lower mold fixing seat (501) is fixedly connected to the lower mold support plate (103).

7. The oxygen lance nozzle forging die according to claim 6, characterized in that: The ejection assembly (6) includes an ejection rod (601), which is slidably connected to the lower mold fixing frame (1). The upper end of the ejection rod (601) passes through the lower mold fixing seat (501) and the lower module (502) and extends to the bottom of the center block (503).

8. The oxygen lance nozzle forging die according to claim 7, characterized in that: The moving component (7) includes a support weight (701), which is located between the lower mold base plate (101) and the lower mold support plate (103). The lower end of the lower mold block (505) passes through the lower module (502), the lower mold fixing seat (501) and the lower mold support plate (103) and is fixedly connected to the support weight (701). The lower mold block (505) is slidably connected to the lower module (502), the lower mold fixing seat (501) and the lower mold support plate (103).

9. The oxygen lance nozzle forging die according to claim 8, characterized in that: A lifting ring (703) is provided below the lower mold base plate (101). Four or more lifting columns (702) are fixed to the top surface of the lifting ring (703). The upper end of the lifting column (702) passes through the lower mold base plate (101) and extends to the bottom of the support weight (701).

10. The oxygen lance nozzle forging die according to claim 9, characterized in that: The top surface of the lower mold base plate (101) is slidably connected to a support block (8).

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