Machining grinding tool for welding neck flange vertical ring rolling mill

Abstract

The utility model provides a machining grinding tool for a welding neck flange vertical ring rolling mill, and belongs to the technical field of forging equipment. Comprising a driving roller assembly and a flange blank, the driving roller assembly comprises a first baffle, a second baffle, a driving roller, first through openings and second through openings, the driving roller is fixed to one end of the first baffle, the second baffle is fixed to the end, away from the first baffle, of the driving roller, and the second through openings and the multiple first through openings penetrate through the two ends of the driving roller assembly; the driving roller assembly is used for rolling a flange blank, the third through openings penetrate through the two ends of the flange blank, the first roller shaft is a driving shaft, the second roller shaft is a driven shaft, the driving shaft does driving rotating motion, and the driven shaft does radial feeding and driven rotating motion. Under the combined action of the driving roller and the pressing roller, the flange blank is continuously clamped into a closed rolling hole pattern formed by the driving roller and the pressing roller, and continuous local plastic deformation is generated.

Description

Technical Field

[0001] The utility model relates to the technical field of forging equipment, in particular to a processing grinding tool for a high-neck flange vertical ring rolling machine. Background Art

[0002] Neck flange, also known as long neck flange, is a disc-shaped part, mainly used to connect pipes. High neck flange is an integral flange, and the presence of the neck greatly improves its own rigidity. It has been widely used in petrochemical, urban water supply systems, and power companies.

[0003] High-neck flanges are generally produced by sand casting, but flanges with cast structures are prone to defects such as looseness, making it difficult to ensure their mechanical properties. At the same time, because the neck of the high-neck flange is high and thin, and the upper and lower cross-sections are very different, it is difficult to form. Therefore, this application provides a processing mold for a high-neck flange vertical ring rolling machine to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a processing mold for a high-neck flange vertical ring rolling machine to solve the problem that the existing high-neck flange is generally produced by a sand casting method, but the flange with a cast structure is prone to defects such as looseness, and it is difficult to ensure its mechanical properties. At the same time, because the neck of the high-neck flange is high and thin, and the upper and lower cross-sections are quite different, the forming is difficult.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a processing mold for a high-neck flange vertical ring rolling machine, including a driving roller assembly and a flange blank, the driving roller assembly including a first baffle, a second baffle, a driving roller, a first opening, and a second opening, a driving roller is fixed to one end of the first baffle, and a second baffle is fixed to the end of the driving roller away from the first baffle, both ends of the driving roller assembly are penetrated by the second opening and a plurality of first openings, and first openings are arranged on both sides of the second opening, the driving roller assembly is used for rolling the flange blank, and both ends of the flange blank are penetrated by the third opening.

[0006] Preferably: the driving roller assembly is fixed by the transmission assembly, the transmission assembly includes a fixed disk, a first roller shaft, a rotating shaft, a threaded rod, a limit disk, and a bolt. One end of the rotating shaft is fixedly connected to the connecting piece, and the end of the rotating shaft away from the connecting piece is transmission-connected to the first roller shaft. One end of the shaft body of the first roller shaft is fixedly connected with the fixed disk, and a limit disk is provided at the end of the shaft body of the first roller shaft away from the fixed disk. One end of a plurality of threaded rods is fixedly connected to the fixed disk, and the other end of the threaded rod is threadedly connected to the limit disk, and a bolt is provided at the end of the threaded rod close to the limit disk.

[0007] Preferably, one end of the connecting member is fixedly connected to one end of the lifting cylinder, and one end of the lifting cylinder away from the moving member is fixedly connected to the frame.

[0008] Preferably: a second roller is provided at the bottom end of the transmission assembly, and the second roller is fixed to one side of the frame, and the second roller is used to place the flange blank.

[0009] Preferably: a plurality of roller holding devices are arranged on one side of the frame close to the second roller shaft, and the plurality of roller holding devices are used to prevent the flange blank from jumping due to the preformed non-round surface.

[0010] Preferably: a base is fixedly connected to the bottom end of the frame, a sliding groove is provided on a side of the base close to the frame, and the sliding groove is arranged in a T-shape.

[0011] Preferably: the sliding groove is slidably connected to the limit assembly, the limit assembly includes a moving plate, a limit ring, a block, a notch, a fixing piece, and a limit rod, one side of the moving plate is fixedly connected to the limit ring, a block is fixed at one end of the moving plate close to the sliding groove, a notch is provided on the side of the moving plate away from the limit ring, the notch is clamped with the limit rod, and the limit rod passes through the fixing piece fixed to the moving plate at the bottom.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects:

[0013] 1. The first roller is the driving shaft, and the second roller is the driven shaft. The driving shaft performs active rotational motion, and the driven shaft performs radial feeding and passive rotational motion. Under the joint action of the driving roller and the pressing roller, the flange blank continuously bites into the closed rolling pass formed by the driving roller and the pressing roller, producing continuous local plastic deformation. The first baffle is the upper baffle, and the second baffle is the lower baffle. The upper and lower baffles limit the axial flow of the metal, which ultimately reduces the wall thickness of the blank, expands the diameter, and expands the cross-section.

[0014] 2. Due to the high precision of rolled flanges, the cross-sectional shape of the rolled workpiece is closer to the finished product. Forging has many forming steps and usually requires 7-8 heating times, while rolling has fewer forming steps and only requires heating once. Therefore, the production cost of rolled flanges is lower; the metal fibers of the rolled flange are continuously distributed in the circumferential direction, which is adapted to the force and wear during use, and has better strength, wear resistance and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the processing tool used for the high-neck flange vertical ring rolling machine.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the processing tool of the high-neck flange vertical ring rolling machine in the working state.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the transmission assembly in the processing mold used in the high-neck flange vertical ring rolling machine.

[0019] Figure 4 The schematic diagram is a structural diagram of a flange blank assembly and a driving roller assembly in a processing mold for a high-neck flange vertical ring rolling machine.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting component in the processing mold used in the high-neck flange vertical ring rolling machine.

[0021] [Reference Signs]

[0022] 1. Base; 2. Frame; 3. Connecting parts; 4. Lifting cylinder; 5. Transmission assembly; 51. Fixed plate; 52. First roller shaft; 53. Rotating shaft; 54. Threaded rod; 55. Limiting plate; 56. Bolt; 6. Second roller shaft; 7. Roller holding device; 8. Limiting assembly; 81. Moving plate; 82. Limiting ring; 83. Block; 84. Notch; 85. Fixed parts; 86. Limiting rod; 9. Sliding groove; 10. Driving roller assembly; 101. First baffle; 102. Second baffle; 103. Driving roller; 104. First opening; 105. Second opening; 11. Flange blank; 12. Third opening.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The following is a detailed description of the processing tool for the high-neck flange vertical ring rolling machine provided by the utility model in combination with the drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0025] like Figure 2 and Figure 4As shown, the embodiment of the utility model provides a processing tool for a high-neck flange vertical ring rolling machine, including a driving roller assembly 10 and a flange blank 11. The driving roller assembly 10 includes a first baffle 101, a second baffle 102, a driving roller 103, a first opening 104, and a second opening 105. The driving roller 103 is fixed to one end of the first baffle 101, and the second baffle 102 is fixed to the end of the driving roller 103 away from the first baffle 101. The two ends of the driving roller assembly 10 are penetrated by the second opening 105 and a plurality of first openings 104, and the first openings 104 are arranged on both sides of the second opening 105. Part 10 is used for rolling flange blank 11, both ends of flange blank 11 are penetrated by third opening 12, first roller 52 is driving shaft, second roller 6 is driven shaft, driving shaft performs active rotation motion, driven shaft performs radial feeding and passive rotation motion, flange blank 11 is continuously bitten into the closed rolling pass formed by driving roller 103 and pressing roller under the joint action of driving roller 103 and pressing roller, and produces continuous local plastic deformation, wherein first baffle 101 is upper baffle, second baffle 102 is lower baffle, upper and lower baffles restrict the axial flow of metal, and finally make the wall thickness of blank thinned, diameter enlarged, and cross-section rolled and formed.

[0026] like Figure 1 , Figure 3 and Figure 5 As shown, the driving roller assembly 10 is fixed by the transmission assembly 5, and the transmission assembly 5 includes a fixed plate 51, a first roller shaft 52, a rotating shaft 53, a threaded rod 54, a limit plate 55, and a bolt 56. One end of the rotating shaft 53 is fixedly connected to the connecting member 3, and the end of the rotating shaft 53 away from the connecting member 3 is transmission-connected to the first roller shaft 52. One end of the shaft body of the first roller shaft 52 is fixedly connected to the fixed plate 51, and the end of the shaft body of the first roller shaft 52 away from the fixed plate 51 is provided with a limit plate 55. A plurality of threaded rods are provided. One end of 54 is fixedly connected to the fixed plate 51, and the other end of the threaded rod 54 is threadedly connected to the limit plate 55, and a bolt 56 is provided at one end of the threaded rod 54 close to the limit plate 55. The first roller shaft 52 is the driving shaft, and the second roller shaft 6 is the driven shaft. After the heated flange blank 11 is installed on the driven shaft, the lifting cylinder 4 on the frame 2 pushes the driving wheel assembly to move downward, and the driving roller assembly 10 on the main shaft squeezes the flange blank 11 downward, causing the heated flange blank 11 to deform.

[0027] The vertical ring rolling machine is a special equipment for expanding the holes of cylindrical forgings and long-neck flanges. It is used to roll the punched blank into cylindrical forgings. The cylindrical forgings rolled by this machine have precise dimensions, good surface finish, and almost no oxide scale on the surface of the forgings. They can be directly tempered and heat treated without affecting the heat treatment performance of the forgings.

[0028] One end of the connecting part 3 is fixedly connected to one end of the lifting cylinder 4, and the end of the lifting cylinder 4 away from the moving part is fixedly connected to the frame 2. The plunger pump is driven by an electric motor, and oil filters are set on the suction oil, pressure oil and return oil to ensure the cleanliness of the oil.

[0029] A second roller 6 is provided at the bottom end of the transmission assembly 5, and the second roller 6 is fixed on one side of the frame 2. The second roller 6 is used to place the flange blank 11. A clamping roller is provided on the second roller 6. The transmission assembly 5 is driven by an electric motor through a coupling to drive a reducer, and the reducer drives the main shaft to rotate through a universal coupling.

[0030] A plurality of roller holding devices 7 are arranged on one side of the frame 2 close to the second roller shaft 6. The plurality of roller holding devices 7 are used to prevent the flange blank 11 from jumping due to the preformed non-round surface. The roller holding devices 7 firmly and reliably attach the side rollers to the outer cylindrical surface of the flange blank 11. If the wall thickness of the flange blank 11 is very thin, the flange blank 11 must be straightened and finely rolled into a perfect circular shape.

[0031] The bottom end of the frame 2 is fixedly connected with a base 1, and a sliding groove 9 is opened on the side of the base 1 close to the frame 2. The sliding groove 9 is set to be T-shaped. The sliding groove 9 allows the limit assembly 8 to move therein, and the limit assembly 8 is moved close to the second roller shaft, and the limit rod 86 is pulled out from the groove 84 in the transmission direction, so that it slides downward from the fixing part 85, and then inserted into the sliding groove 9 to limit its limit assembly 8 to prevent the limit assembly 8 from moving.

[0032] The sliding groove 9 is slidably connected to the limit assembly 8, and the limit assembly 8 includes a moving plate 81, a limit ring 82, a block 83, a notch 84, a fixing piece 85, and a limit rod 86. One side of the moving plate 81 is fixedly connected to the limit ring 82, and a block 83 is fixed on the end of the moving plate 81 close to the sliding groove 9. A notch 84 is provided on the side of the moving plate 81 away from the limit ring 82. The notch 84 is engaged with the limit rod 86, and the limit rod 86 passes through the fixing piece 85 fixed to the moving plate 81 at the bottom end. When the flange blank 11 forging is installed on the second roller 6, the limit assembly 8 is moved to the vicinity of the second roller 6 through the sliding groove 9, and the limit ring 82 is sleeved on the second roller 6 to prevent the flange blank 11 from moving out of the second roller 6 during processing.

[0033] The utility model provides a technical solution, the first roller 52 is a driving shaft, the second roller 6 is a driven shaft, the driving shaft performs active rotational motion, the driven shaft performs radial feeding and passive rotational motion, the flange blank 11 is continuously bitten into the closed rolling hole formed by the driving roller 103 and the pressing roller under the joint action of the driving roller 103 and the pressing roller, and produces continuous local plastic deformation, wherein the first baffle 101 is an upper baffle, the second baffle 102 is a lower baffle, the upper and lower baffles restrict the axial flow of the metal, and finally the wall thickness of the blank is thinned, the diameter is enlarged, and the cross-section is rolled and formed. Due to the high precision of the rolled flange, the cross-sectional shape of the rolled workpiece is closer to the finished product, the forging forming process is more, usually 7-8 times of heating is required, while the rolling forming process is less, and only one heating is required, so the production cost of the rolled flange is lower; the metal fibers of the rolled flange are continuously distributed along the circumferential direction, adapted to the stress and wear during its use, and have better strength, wear resistance and service life.

[0034] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A processing tool for a high-neck flange vertical ring rolling machine, characterized in that: The invention comprises a driving roller assembly (10) and a flange blank (11), wherein the driving roller assembly (10) comprises a first baffle (101), a second baffle (102), a driving roller (103), a first opening (104), and a second opening (105); the driving roller (103) is fixed to one end of the first baffle (101); the second baffle (102) is fixed to the end of the driving roller (103) away from the first baffle (101); both ends of the driving roller assembly (10) are penetrated by the second opening (105) and a plurality of first openings (104); both sides of the second opening (105) are provided with first openings (104); the driving roller assembly (10) is used for rolling the flange blank (11); and both ends of the flange blank (11) are penetrated by the third opening (12).

2. The processing tool for a high-neck flange vertical ring rolling machine according to claim 1 is characterized in that: The driving roller assembly (10) is fixed by a transmission assembly (5), wherein the transmission assembly (5) comprises a fixed disk (51), a first roller shaft (52), a rotating shaft (53), a threaded rod (54), a limiting disk (55), and a bolt (56); one end of the rotating shaft (53) is fixedly connected to the connecting member (3); one end of the rotating shaft (53) away from the connecting member (3) is transmission-connected to the first roller shaft (52); one end of the shaft body of the first roller shaft (52) is fixedly connected to the fixed disk (51); one end of the shaft body of the first roller shaft (52) away from the fixed disk (51) is provided with a limiting disk (55); one end of a plurality of threaded rods (54) is fixedly connected to the fixed disk (51); the other end of the threaded rod (54) is threadedly connected to the limiting disk (55); and one end of the threaded rod (54) close to the limiting disk (55) is provided with a bolt (56).

3. The processing tool for a high-neck flange vertical ring rolling machine according to claim 2 is characterized in that: One end of the connecting member (3) is fixedly connected to one end of the lifting cylinder (4), and one end of the lifting cylinder (4) away from the moving member is fixedly connected to the frame (2).

4. The processing tool for a high-neck flange vertical ring rolling machine according to claim 2 is characterized in that: A second roller (6) is provided at the bottom end of the transmission assembly (5), and the second roller (6) is fixed to one side of the frame (2), and the second roller (6) is used to place the flange blank (11).

5. The processing tool for a high-neck flange vertical ring rolling machine according to claim 4 is characterized in that: A plurality of roller holding devices (7) are arranged on one side of the frame (2) close to the second roller shaft (6), and the plurality of roller holding devices (7) are used to prevent the flange blank (11) from jumping due to the preformed non-round surface.

6. The processing tool for a high-neck flange vertical ring rolling machine according to claim 5 is characterized in that: The bottom end of the frame (2) is fixedly connected to a base (1), and a sliding groove (9) is provided on a side of the base (1) close to the frame (2), and the sliding groove (9) is arranged in a T-shape.

7. The processing tool for a high-neck flange vertical ring rolling machine according to claim 6 is characterized in that: The sliding groove (9) is slidably connected to the limiting assembly (8), and the limiting assembly (8) comprises a moving plate (81), a limiting ring (82), a clamping block (83), a notch (84), a fixing piece (85), and a limiting rod (86). One side of the moving plate (81) is fixedly connected to the limiting ring (82), an end of the moving plate (81) close to the sliding groove (9) is fixed with a clamping block (83), and a side of the moving plate (81) away from the limiting ring (82) is provided with a notch (84), the notch (84) is clamped with the limiting rod (86), and the limiting rod (86) passes through the fixing piece (85) fixed to the moving plate (81) at the bottom end.

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