Spinning forming device for thin-wall plate blank

Abstract

The utility model provides a spinning forming device for a thin-wall plate blank, which is arranged on a machine tool workbench and comprises a rotary supporting mechanism, two roller mechanisms and a temperature control mechanism, specifically, the rotary supporting mechanism comprises a rotary disc, a core mold and a tail ejection assembly. The rotating disc is fixedly connected with the transmission shaft, the core mold and the rotating disc are fixedly connected with the same center shaft, the tail jacking assembly, the core mold and the rotating disc are arranged with the same center shaft, and a thin-wall plate blank is arranged between the core mold and the tail jacking assembly and is pressed by the core mold and the tail jacking assembly; the two roller mechanisms are symmetrically arranged on the two sides of the central axis of the rotary supporting mechanism, form included angles with the rotary supporting mechanism respectively and are used for carrying out feeding rolling on the thin-wall plate blank; and the temperature control mechanisms are arranged on the two sides of the rotary supporting mechanism, are spaced from the thin-wall plate blank and are used for controlling the surface temperature of the thin-wall plate blank.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure forming, and specifically, relates to a spin forming device for thin-walled plate blanks. Background Art

[0002] With the rapid development of industries such as automobiles, aviation, and high-speed rail, the demand for conical or cylindrical thin-walled parts has become increasingly prominent. These parts usually require high precision and high strength to meet the needs of high-performance equipment. Existing spin forming methods are mostly manual or semi-automatic, relying on the operator's experience and skills, which limits production efficiency and part consistency. In addition, existing spin forming devices require manual surface heating and temperature measurement of thin-walled parts during the spin forming process, which is inefficient and difficult to achieve precise temperature control, which may lead to unstable material properties and inconsistent molding quality.

[0003] Therefore, there is an urgent need to develop a spin forming device for thin-walled plate blanks that overcomes the above-mentioned defects. Utility Model Content

[0004] The utility model provides a spinning forming device for thin-walled plate blanks, which at least solves the problems of low forming efficiency, low forming quality and large material loss of the existing spinning forming device for thin-walled plate blanks.

[0005] To achieve the above-mentioned purpose, the present invention provides a spinning forming device for thin-walled plate blanks, which is installed on a machine tool workbench. The spinning forming device includes:

[0006] The rotary support mechanism includes: a rotary disk, a core mold, and a tail top assembly; the rotary disk is fixedly connected to the transmission shaft, the core mold and the rotary disk are fixedly connected coaxially, the tail top assembly is arranged coaxially with the core mold and the rotary disk, and the thin-walled plate blank is arranged between the core mold and the tail top assembly and is pressed by the core mold and the tail top assembly;

[0007] Two roller mechanisms, the two roller mechanisms are symmetrically arranged on both sides of the central axis of the rotating support mechanism, respectively forming an angle with the rotating support mechanism, for feeding and rolling the thin-walled plate blank;

[0008] The temperature control mechanism is arranged on both sides of the rotating support mechanism and has a distance from the thin-walled plate blank, so as to control the surface temperature of the thin-walled plate blank.

[0009] Furthermore, the two roller mechanisms include:

[0010] A roller feed assembly comprising a radial guide rail, an axial guide rail, a radial drive device and an axial drive device, wherein the radial guide rail is mounted on the machine tool worktable parallel to the central axis of the rotary support mechanism, and the axial guide rail is mounted on the radial guide rail perpendicular to the central axis of the rotary support mechanism;

[0011] The roller support assembly is mounted on the axial guide rail, the axial drive device drives the roller support assembly to move axially along the axial guide rail, and the radial drive device drives the axial guide rail to move radially along the radial guide rail;

[0012] A roller, mounted on the roller bracket assembly;

[0013] The turning tool is mounted on the roller bracket assembly.

[0014] Furthermore, the roller support assembly includes:

[0015] A roller base, slidably connected to the axial guide rail;

[0016] A roller stand, the roller stand being vertically mounted on the roller base;

[0017] A roller tool holder, the roller tool holder is rotatably connected to the roller stand and is horizontally arranged with the roller base, and forms an angle with the axis of the rotation support mechanism. The roller tool holder has a roller groove at one end and a turning tool groove at the other end. The roller is installed in the roller groove, and the turning tool is installed in the turning tool groove.

[0018] The roller drive motor is installed on the top of the roller tool holder to drive the roller and the turning tool to rotate.

[0019] Furthermore, the temperature control mechanism includes: a heating component and a temperature measuring component, and the heating component is electrically connected to the temperature measuring component.

[0020] Furthermore, the heating component includes:

[0021] A flamethrower base is horizontally mounted on the machine tool workbench;

[0022] A flame-spraying chamber, the flame-spraying chamber being vertically mounted on the flame-spraying base, and a combustion assembly being mounted in the flame-spraying chamber;

[0023] A flame spray head is connected to the flame spray chamber through a flame spray tube.

[0024] Furthermore, the temperature measurement component includes:

[0025] A temperature measuring base is horizontally mounted on the machine tool workbench;

[0026] A temperature measuring stand, the temperature measuring stand being vertically mounted on the temperature measuring base;

[0027] A temperature measuring head is mounted at the end of the temperature measuring stand.

[0028] Furthermore, a bracket mechanism is further included, the central axis of the bracket mechanism being consistent with the central axis of the rotation support mechanism and being installed below the thin-walled plate blank, comprising:

[0029] A bracket base is horizontally mounted on the machine tool workbench;

[0030] A lifting frame, the lifting frame is vertically mounted on the bracket base, and two bracket rod mounting holes are opened on the top of the lifting frame;

[0031] An adjusting rocker, mounted on the bracket base, for adjusting the height of the lifting frame;

[0032] Two bracket rods are installed on the lifting frame through the bracket rod mounting holes and are arranged horizontally with the bracket base.

[0033] Furthermore, the tail top assembly includes: a tail top, a tail top hydraulic rod and a tail top motor; one side of the tail top is tightly attached to the thin-walled plate blank, and one side is connected to the tail top hydraulic rod; the tail top and the tail top hydraulic rod are both driven by the tail top motor installed at the other end of the tail top hydraulic rod to press the thin-walled plate blank.

[0034] Furthermore, hydraulic pipe holes are opened at the center positions of the rotating disk and the core mold, and the hydraulic pipe is passed through the hydraulic pipe holes and sequentially passes through the rotating disk and the core mold to input hydraulic oil into the thin-walled plate blank.

[0035] Furthermore, the core mold is fixedly connected to the rotating disk through a flange.

[0036] Compared with the existing technology, the advantages and positive effects of the present invention are: the present invention provides a spinning forming device for thin-walled plate blanks, which can be used in large quantities of thin-walled conical or circular blind holes or through holes. The spinning process is convenient and fast, which greatly improves the spinning forming efficiency of thin-walled parts.

[0037] The utility model is a spin forming device for thin-walled plate blanks. The size of the spin-formed parts can be controlled within a single-side margin of 1 mm, thereby reducing the loss of raw materials.

[0038] The utility model is a spinning forming device for thin-walled plate blanks, which integrates an automatic temperature control device and a single-side allowance turning device, thereby further improving the spinning efficiency and the precision of formed parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1This is a schematic structural diagram of a spin forming device for thin-walled plate blanks according to the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of the roller bracket assembly of the utility model;

[0041] Figure 3 This is a schematic diagram of the structure of the heating component of the utility model;

[0042] Figure 4 This is a schematic diagram of the structure of the temperature measurement component of the utility model;

[0043] Figure 5 This is a schematic diagram of the bracket mechanism structure of the utility model.

[0044] In the above picture:

[0045] 1. Rotating disk; 2. Mandrel; 3. Tail top assembly; 31. Tail top; 32. Tail top hydraulic rod; 33. Tail top motor; 4. Roller mechanism; 41. Radial guide rail; 42. Axial guide rail; 43. Radial drive device; 44. Axial drive device; 45. Roller bracket assembly; 46. Roller; 47. Turning tool; 451. Roller base; 452. Roller stand; 453. Roller tool holder; 454. Roller drive motor; 5. Heating assembly; 51. Flame base; 52. Flame chamber; 53. Flame head; 6. Temperature measuring assembly; 61. Temperature measuring base; 62. Temperature measuring stand; 63. Temperature measuring head; 7. Bracket mechanism; 71. Bracket base; 72. Lifting frame; 73. Adjustment rocker; 74. Bracket rod; 8. Hydraulic pipe; 9. Flange; 10. Thin-walled plate blank; 11. Machine tool worktable. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0047] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "liquid level", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0049] The utility model provides a spinning forming device for thin-walled plate blanks, which is installed on a machine tool workbench 11. The spinning forming device includes: a rotating support mechanism, two roller mechanisms 4 and a temperature control mechanism. Figure 1-Figure 5 The spin forming device for thin-walled plate blanks and the structure of each component are described in detail.

[0050] like Figure 1 As shown, the utility model provides a spin forming device for thin-walled plate blanks, comprising:

[0051] The rotary support mechanism includes: a rotary disk 1, a core mold 2, and a tail top assembly 3; the rotary disk 1 is fixedly connected to the drive shaft, the core mold 2 is fixedly connected to the rotary disk 1 coaxially, the tail top assembly 3 is arranged coaxially with the core mold 2 and the rotary disk 1, and the thin-walled plate blank 10 is arranged between the core mold 2 and the tail top assembly 3 and is pressed by the core mold 2 and the tail top assembly 3; when the spinning forming device is started, the drive shaft can drive the core mold 2 and the thin-walled plate blank 10 to rotate at a uniform speed;

[0052] In some embodiments, the core mold 2 can be easily replaced according to different production requirements;

[0053] Two roller mechanisms 4 are symmetrically arranged on both sides of the central axis of the rotating support mechanism, respectively forming an angle with the rotating support mechanism, for feeding and rolling the thin-walled plate blank 10;

[0054] The temperature control mechanism is disposed on both sides of the rotating support mechanism and has a distance from the thin-walled plate blank 10 to control the surface temperature of the thin-walled plate blank 10 .

[0055] Figure 2 This is a schematic diagram of the structure of the roller bracket assembly 45 of the utility model. Figure 2 The specific structure of the roller bracket assembly 45 in the present invention is described in detail.

[0056] like Figure 2 As shown, preferably, the two roller mechanisms 4 include:

[0057] The roller feed assembly includes a radial guide rail 41, an axial guide rail 42, a radial drive device 43, and an axial drive device 44. The radial guide rail 41 is mounted on the machine tool worktable 11 parallel to the central axis of the rotation support mechanism, and the axial guide rail 42 is mounted on the radial guide rail 41 perpendicular to the central axis of the rotation support mechanism. In some embodiments, the axial drive device 44 and the radial drive device 43 both include a drive motor and a screw.

[0058] The roller support assembly 45 is mounted on the axial guide rail 42. The axial drive device 44 drives the roller support assembly 45 to move axially along the axial guide rail 42. The radial drive device 43 drives the axial guide rail 42 to move radially along the radial guide rail 41.

[0059] The roller 46 is mounted on the roller bracket assembly 45;

[0060] The turning tool 47 is mounted on the roller support assembly 45;

[0061] In some embodiments, the spinning device is started, and the two roller mechanisms 4 perform axial and radial feeding according to a preset spinning program to achieve rolling of the thin-walled plate blank 10.

[0062] Preferably, the roller support assembly 45 includes:

[0063] The roller base 451 is slidably connected to the axial guide rail 42;

[0064] The roller stand 452 is vertically mounted on the roller base 451;

[0065] The roller tool holder 453 is rotatably connected to the roller stand 452 and is arranged horizontally with the roller base 451, and forms an angle with the axis of the rotating support mechanism. The roller tool holder 453 has a roller groove at one end and a turning tool 47 groove at the other end. The roller is installed in the roller groove, and the turning tool 47 is installed in the turning tool 47 groove.

[0066] The roller drive motor 454 is mounted on the top of the roller tool holder 453 to drive the roller and the turning tool 47 to rotate. In specific use, the roller 46 or the turning tool 47 can be put into working state according to needs.

[0067] Figure 3 This is a schematic diagram of the structure of the heating component 5 of the utility model. Figure 4 This is a schematic diagram of the structure of the temperature measuring component 6 of the present invention. Figure 3-Figure 4 , describe in detail the specific structure of the temperature control component in this utility model.

[0068] Preferably, the temperature control mechanism includes: a heating component 5 and a temperature measuring component 6 , and the heating component 5 is electrically connected to the temperature measuring component 6 .

[0069] Preferably, the heating assembly 5 includes: a flame spray base 51 mounted horizontally on the machine tool worktable 11; a flame spray chamber 52 mounted vertically on the flame spray base 51, wherein a combustion assembly is mounted; and a flame spray head 53 connected to the flame spray chamber 52 via a flame spray tube. The flame spray head 53 of the heating assembly 5 is generally positioned approximately 1 meter from the thin-walled plate blank 10.

[0070] Preferably, the temperature measuring assembly 6 comprises a temperature measuring base 61 mounted horizontally on the machine tool worktable 11; a temperature measuring stand 62 mounted vertically on the temperature measuring base 61; and a temperature measuring head 63 mounted at the end of the temperature measuring stand 62. The temperature measuring head 63 of the temperature measuring assembly 6 is typically positioned approximately 1 meter from the thin-walled sheet metal workpiece 10. The heating assembly 5 can control heating based on the surface temperature of the thin-walled sheet metal workpiece 10 measured by the temperature measuring assembly 6, thereby maintaining the surface temperature of the thin-walled sheet metal workpiece 10 at a preset temperature.

[0071] Figure 5 This is a schematic diagram of the structure of the bracket mechanism 7 of the present invention. Figure 5 , the specific structure of the bracket mechanism 7 in the present utility model is described in detail.

[0072] Preferably, the machine further includes a bracket mechanism 7, whose central axis is aligned with the central axis of the rotary support mechanism and is mounted below the thin-walled plate blank 10. The bracket mechanism 7 comprises: a bracket base 71 mounted horizontally on the machine tool worktable 11; a lifting frame 72 mounted vertically on the bracket base 71, with two mounting holes for bracket rods 74 defined at the top of the lifting frame 72; an adjustment rocker 73 mounted on the bracket base 71 for adjusting the height of the lifting frame 72; and two bracket rods 74 mounted on the lifting frame 72 through the mounting holes for the bracket rods 74. The two bracket rods 74 are mounted on the lifting frame 72 through the mounting holes for the bracket rods 74 and are arranged horizontally with the bracket base 71 to support the thin-walled plate blank 10. In some embodiments, the lifting frame 72 of the bracket mechanism 7 is provided with a measuring scale. By adjusting the rocker 73, the center of the thin-walled plate blank 10 can be easily aligned, thereby improving operating efficiency and clamping safety.

[0073] In some embodiments, a hydraulic pipe 8 hole is provided at the center of both the rotating disk 1 and the core mold 2. The hydraulic pipe 8 is passed through the hydraulic pipe 8 hole and sequentially passes through the rotating disk 1 and the core mold 2 to input hydraulic oil into the thin-walled plate blank 10. This allows the thin-walled part to be removed from the core mold 2 smoothly without damage after spinning.

[0074] In some embodiments, the core mold 2 is fixedly connected to the rotating disk 1 via a flange 9 .

[0075] In some embodiments, the tail top assembly 3 includes: a tail top 31, a tail top hydraulic rod 32 and a tail top motor 33; one side of the tail top 31 is tightly attached to the thin-walled plate blank 10, and one side is connected to the tail top hydraulic rod 32; the tail top 31 and the tail top hydraulic rod 32 are both driven by the tail top motor 33 installed at the other end of the tail top hydraulic rod 32 to press the thin-walled plate blank 10 so that it will not loosen or dislocate during the spinning process.

[0076] Preferably, in specific use, the method of using the above-mentioned spin forming device for thin-walled plate blank 10 is as follows:

[0077] First, the core mold 2 is fixedly connected to the rotating disk 1 through the flange 9, and is aligned using a dial indicator so that the circumferential runout of the core mold 2 does not exceed 0.05 mm. After adjustment, the hydraulic pipe 8 is sequentially passed through the hydraulic pipe 8 hole through the rotating disk 1, flange 9 and core mold 2 to input hydraulic oil into the thin-walled plate blank 10 to prevent the processed thin-walled parts from being unable to be smoothly removed from the core mold 2. Secondly, the thin-walled plate blank 10 is placed on the bracket rod 74 of the bracket mechanism 7, and the height of the lifting frame 72 is adjusted by adjusting the rocker 73 so that the center of the thin-walled plate blank 10 is aligned with the center of the above-mentioned core mold 2. At this time, the tail top 31 is placed on the tail top hydraulic rod 32. The two are driven by the tail top motor 33 to press the thin-walled plate blank 10 and the core mold 2 tightly. The spinning process is initiated, causing the two roller tool holders 453 to move axially and radially, driven by the axial drive device 44 and the longitudinal drive device. The thin-walled sheet blank 10 is symmetrically fed and rolled according to the preset spinning process. Once the preset feed depth is reached, the first round of spinning is completed. The heating assembly 5 is activated to spray-heat the surface of the thin-walled sheet blank 10. When the temperature of the temperature measuring assembly 6 reaches a preset temperature, such as 300°C, the second round of spinning begins. Simultaneously, the heating assembly 5 controls the surface temperature of the thin-walled sheet blank 10 based on the temperature feedback from the temperature measuring assembly 6, maintaining it at the preset temperature of 300°C. Upon completion of the spinning process, the thin-walled sheet blank 10 is spun. To further ensure the precision of the spun thin-walled part, the roller tool holder 453 is rotated to engage the end equipped with the turning tool 47, without disassembling the thin-walled part. The turning process is initiated, and the turning tool 47 turns the outer edge of the thin-walled part, keeping its tolerance within the preset range. Due to thermal expansion and contraction of parts, thin-walled parts may be fixed on the core mold 2 and difficult to remove normally. By inputting hydraulic oil into the thin-walled parts through the hydraulic pipe 8, the thin-walled parts can be smoothly separated from the core mold 2 by hydraulic pressure, and finally the thin-walled plate blank 10 can be spun into thin-walled tapered or straight cylindrical parts with high quality and high precision.

[0078] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A spin forming device for thin-walled plate blanks, mounted on a machine tool workbench, characterized in that: The spin forming device comprises: The rotary support mechanism includes: a rotary disk, a core mold, and a tail top assembly; the rotary disk is fixedly connected to the transmission shaft, the core mold and the rotary disk are fixedly connected coaxially, the tail top assembly is arranged coaxially with the core mold and the rotary disk, and the thin-walled plate blank is arranged between the core mold and the tail top assembly and is pressed by the core mold and the tail top assembly; Two roller mechanisms, the two roller mechanisms are symmetrically arranged on both sides of the central axis of the rotating support mechanism, respectively forming an angle with the rotating support mechanism, for feeding and rolling the thin-walled plate blank; The temperature control mechanism is arranged on both sides of the rotating support mechanism and has a distance from the thin-walled plate blank, so as to control the surface temperature of the thin-walled plate blank.

2. The spin forming device for thin-walled plate blanks according to claim 1, characterized in that The two roller mechanisms include: A roller feed assembly comprising a radial guide rail, an axial guide rail, a radial drive device and an axial drive device, wherein the radial guide rail is mounted on the machine tool worktable parallel to the central axis of the rotary support mechanism, and the axial guide rail is mounted on the radial guide rail perpendicular to the central axis of the rotary support mechanism; The roller support assembly is mounted on the axial guide rail, the axial drive device drives the roller support assembly to move axially along the axial guide rail, and the radial drive device drives the axial guide rail to move radially along the radial guide rail; A roller, mounted on the roller bracket assembly; The turning tool is mounted on the roller bracket assembly.

3. The spin forming device for thin-walled plate blanks according to claim 2, characterized in that: The roller bracket assembly includes: A roller base, slidably connected to the axial guide rail; A roller stand, the roller stand being vertically mounted on the roller base; A roller tool holder, the roller tool holder is rotatably connected to the roller stand and is horizontally arranged with the roller base, and forms an angle with the axis of the rotation support mechanism. The roller tool holder has a roller groove at one end and a turning tool groove at the other end. The roller is installed in the roller groove, and the turning tool is installed in the turning tool groove. The roller drive motor is installed on the top of the roller tool holder to drive the roller and the turning tool to rotate.

4. The spin forming device for thin-walled plate blanks according to claim 1, characterized in that The temperature control mechanism includes: a heating component and a temperature measuring component, and the heating component is electrically connected to the temperature measuring component.

5. The spin forming device for thin-walled plate blanks according to claim 4, characterized in that: The heating assembly comprises: A flamethrower base is horizontally mounted on the machine tool workbench; A flame-spraying chamber, the flame-spraying chamber being vertically mounted on the flame-spraying base, and a combustion assembly being mounted in the flame-spraying chamber; A flame spray head is connected to the flame spray chamber through a flame spray tube.

6. The spin forming device for thin-walled plate blanks according to claim 4, characterized in that The temperature measurement component includes: A temperature measuring base is horizontally mounted on the machine tool workbench; A temperature measuring stand, the temperature measuring stand being vertically mounted on the temperature measuring base; A temperature measuring head is mounted at the end of the temperature measuring stand.

7. The spin forming device for thin-walled plate blanks according to claim 1, characterized in that The invention also includes a bracket mechanism, the central axis of which is consistent with the central axis of the rotating support mechanism and is installed below the thin-walled plate blank, including: A bracket base is horizontally mounted on the machine tool workbench; A lifting frame, the lifting frame is vertically mounted on the bracket base, and two bracket rod mounting holes are opened on the top of the lifting frame; An adjusting rocker, mounted on the bracket base, for adjusting the height of the lifting frame; Two bracket rods are installed on the lifting frame through the bracket rod mounting holes and are arranged horizontally with the bracket base.

8. The spin forming device for thin-walled plate blanks according to claim 1, characterized in that The tail top assembly includes: a tail top, a tail top hydraulic rod and a tail top motor; one side of the tail top is tightly attached to the thin-walled plate blank, and the other side is connected to the tail top hydraulic rod; the tail top and the tail top hydraulic rod are both driven by the tail top motor installed at the other end of the tail top hydraulic rod to press the thin-walled plate blank.

9. The spin forming device for thin-walled plate blanks according to claim 1, characterized in that: The rotating disk and the core mold are both provided with hydraulic pipe holes at their center positions. The hydraulic pipes are passed through the hydraulic pipe holes and sequentially pass through the rotating disk and the core mold to input hydraulic oil into the thin-walled plate blank.

10. The spin forming device for thin-walled plate blanks according to claim 1, characterized in that The core mold is fixedly connected to the rotating disk through a flange.

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