A vertical large-arc spinning equipment

Abstract

A vertical large-arc spinning machine, relating to the technical field of spinning equipment, includes a worktable. A die rotary table is located in the middle of the left side of the worktable. A die is mounted above the die rotary table, and a speed reducer is connected below. Several auxiliary roller conveyors are arranged around the die rotary table on the left side of the worktable. A fixed guide assembly is provided on one side of the die rotary table. A support slide is located on the right side of the worktable, and a movable support is mounted on the support slide. The upper end of the movable support is hinged to the rear end of the main hydraulic cylinder adjusting rod, and a punch is mounted at the front end of the main hydraulic cylinder adjusting rod. One end of the auxiliary hydraulic cylinder adjusting rod is hinged to one side of the front end of the main hydraulic cylinder adjusting rod, and the other end of the auxiliary hydraulic cylinder adjusting rod is hinged to the lower end of the movable support. The extension and retraction direction of the auxiliary hydraulic cylinder adjusting rod is perpendicular to the axis of rotation. A hydraulic control system and a main control box are electrically connected to one side of the worktable. This utility model adapts to various workpiece specifications through replaceable molds and an adjustable guide structure, improving processing accuracy and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of spinning equipment technology, and in particular to a vertical large-arc spinning equipment. Background Technology

[0002] Currently, most spinning machines on the market are suitable for spinning thin plates or conventional materials. However, they generally suffer from insufficient processing capacity when dealing with thick plates, special materials, or workpieces with complex curvatures, failing to meet usage requirements. These machines often use fixed spinning dies, making it difficult to flexibly adapt to workpieces of different diameters and thicknesses, resulting in low production efficiency and inconsistent product quality. Among existing spinning technologies, fixed-die spinning machines generally suffer from poor adaptability, low precision, and insufficient flexibility. While multi-axis CNC spinning machines offer higher precision, they are expensive and complex to operate; semi-automatic spinning machines rely excessively on manual intervention, resulting in limited production efficiency and unstable forming accuracy.

[0003] Therefore, there is an urgent need for a new type of spinning equipment to solve the above-mentioned technical bottlenecks and meet the requirements of high-precision, high-adaptability and high-efficiency spinning production. Utility Model Content

[0004] The purpose of this invention is to provide a vertical large-arc spinning device to solve the technical problem that the existing technology cannot adapt to the processing of workpieces of different sizes and shapes.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a vertical large-arc spinning device, including a worktable, which is divided into left and right parts. A die rotating platform is set in the middle of the left part of the worktable. A die is installed above the die rotating platform and a speed reducer is connected below to drive the die rotating platform to rotate. Several auxiliary roller tracks are also set around the die rotating platform on the left part of the worktable to support and guide the workpiece to be processed to rotate synchronously with the die rotating platform. A fixed guide assembly is also set on one side of the die rotating platform to clamp and adapt to workpieces of different diameters. A support slide is set on the right part of the worktable. A movable support is movably set on the support slide. The upper end of the movable support is hinged to the rear end of the cylinder body of the main hydraulic cylinder adjusting rod through a rotating shaft. This allows the main hydraulic cylinder adjusting rod to open and close around the rotation axis. A punch is mounted on the front end of the piston rod of the main hydraulic cylinder adjusting rod, used to work in conjunction with the die to spin-form the workpiece. One end of the auxiliary hydraulic cylinder adjusting rod is hinged to one side of the piston rod end of the main hydraulic cylinder adjusting rod, and the other end of the auxiliary hydraulic cylinder adjusting rod is hinged to the lower end of the movable bracket. The extension and retraction direction of the auxiliary hydraulic cylinder adjusting rod is perpendicular to the axial direction of the rotation axis, used to precisely adjust the horizontal position of the punch. A hydraulic control system and a main control box are also electrically connected to one side of the worktable. The main control box is used to control the operation of the speed reducer and the hydraulic control system. The hydraulic control system is used to receive instructions from the main control box and drive the linkage of the main hydraulic cylinder adjusting rod and the auxiliary hydraulic cylinder adjusting rod.

[0006] As a preferred embodiment, the punch and the die are interchangeable matching mold sets.

[0007] As a preferred embodiment, the end of the movable bracket is provided with a bracket adjustment screw, which drives the movable bracket to slide along the bracket slide rail.

[0008] As a preferred embodiment, the fixed guide assembly includes a first fixed guide assembly and a second fixed guide assembly. One end of the first fixed guide assembly and the second fixed guide assembly is provided with a handle for radial telescopic adjustment, and the other end is connected to a guide wheel. The working surface of the guide wheel has a V-shaped groove structure, which forms a line contact clamping with the outer wall of the workpiece to be processed.

[0009] As a preferred embodiment, four auxiliary roller conveyors are provided, which are arranged at an angle of 30° to 45° relative to the axis of the die rotary table, forming a conical self-centering support structure for the workpiece to be processed, and are used for auxiliary support for the feeding and unloading of the workpiece.

[0010] As a preferred embodiment, the hydraulic control system includes a hydraulic power unit, a hydraulic valve assembly, and a motor. The hydraulic valve assembly integrates a proportional flow valve and a directional valve, and the motor is connected to the hydraulic power unit to provide power to the hydraulic power unit.

[0011] As a preferred embodiment, the main control box is electrically connected to the motor, the gear reducer, and the hydraulic valve assembly.

[0012] As a preferred embodiment, the integrated speed reducer outputs a speed of 5 to 20 rpm and achieves stepless speed regulation through the main control box.

[0013] Based on the above technical solution, the beneficial effects of this utility model are: 1. This utility model has strong adaptability and a wide processing range. By adopting a set of replaceable punches and dies, combined with a fixed guide assembly with radial telescopic adjustment and an inclined auxiliary roller conveyor forming a self-centering support structure, it can flexibly adapt to workpieces of different diameters, thicknesses and tapers, and is compatible with the spinning forming requirements of thick plates, special materials and complex curvatures. It effectively overcomes the problem of the limited applicability of traditional fixed die spinning machines and can meet the processing requirements of various types of workpieces.

[0014] 2. This utility model boasts high forming precision and stable, reliable product quality. It employs a structural design with main and auxiliary hydraulic cylinder adjusting rods operating in a positive-cross-acting manner. The auxiliary hydraulic cylinder allows for precise fine-tuning of the punch's horizontal position. Combined with an integrated proportional valve hydraulic control system, it achieves high-precision, coordinated control of the two cylinders, ensuring continuous and stable contact between the punch and the workpiece during the spinning process. The auxiliary roller conveyor and V-groove guide wheels jointly limit workpiece offset, significantly improving the processing accuracy and surface consistency for thick plates and special material workpieces, and avoiding quality fluctuations caused by manual operation.

[0015] 3. This utility model features a high degree of automation and convenient operation. The main control box centrally controls the integrated reducer, motor, and hydraulic valve assembly, achieving coordinated operation between workpiece rotation and punch feed, significantly reducing operational difficulty and labor intensity. The movable support can be quickly adjusted via a lead screw drive, shortening clamping and debugging time. The overall machine structure is rationally designed, easy to operate, and greatly improves production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Top view; Figure 3 for Figure 1 A perspective view; Figure 4 for Figure 1 The right view.

[0017] The markings in the diagram are: 1. Workbench, 2. Reducer, 3. Die rotary table, 4. Die, 5. Punch, 6. Main hydraulic cylinder adjusting rod, 7. Auxiliary hydraulic cylinder adjusting rod, 8. Movable support, 9. Support slide, 10. Support adjusting screw, 11. Auxiliary roller conveyor, 12. First fixed guide assembly, 13. Hydraulic station, 14. Hydraulic valve assembly, 15. Motor, 16. Main control box, 17. Second fixed guide assembly. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should fall within the scope of the technical content disclosed in this utility model.

[0020] Furthermore, it should be noted that, unless otherwise stated, "several" means two or more; the terms "upper," "lower," "left," "right," "front end," "rear end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 4 As shown, a vertical large-arc spinning equipment includes a worktable 1, a speed reducer 2, a die rotary table 3, a die 4, a punch 5, a main hydraulic cylinder adjusting rod 6, an auxiliary hydraulic cylinder adjusting rod 7, a movable support 8, a support slide rail 9, a support adjusting screw 10, an auxiliary roller conveyor 11, a first fixed guide assembly 12, a hydraulic station 13, a hydraulic valve assembly 14, a motor 15, a main control box 16, and a second fixed guide assembly 17.

[0022] The workbench 1 is divided into left and right parts. A die rotation table 3 is set in the middle of the left part of the workbench 1. A die 4 is installed above the die rotation table 3 and a speed reducer 2 is connected below to drive the die rotation table 3 to rotate.

[0023] Several auxiliary roller tracks 11 are also provided around the left side of the worktable 1 and around the die rotation table 3 to support and guide the workpiece to be processed to rotate synchronously with the die rotation table 3. In this embodiment, there are four auxiliary roller tracks 11. The auxiliary roller tracks 11 are arranged at an angle of 30° to 45° relative to the axis of the die rotation table 3 to form a conical self-centering support structure for the workpiece to be processed, which is used for auxiliary support for the feeding and discharging of the workpiece.

[0024] A fixed guide assembly is also provided on one side of the die rotary table 3 for clamping and adapting workpieces of different diameters. In this embodiment, the fixed guide assembly includes a first fixed guide assembly 12 and a second fixed guide assembly 17. One end of the first fixed guide assembly 12 and the second fixed guide assembly 17 is provided with a handle for radial extension and retraction adjustment. By rotating the handle, the entire assembly can be driven to achieve radial extension and retraction adjustment. The other end of the first fixed guide assembly 12 and the second fixed guide assembly 17 is connected to a guide wheel. The working surface of the guide wheel is a V-shaped groove structure, which forms a line contact clamping with the outer wall of the workpiece to be processed, ensuring that the workpiece does not shift during the spinning process.

[0025] A support slide 9 is provided on the right side of the worktable 1. A movable support 8 is movably mounted on the support slide 9. The movable support 8 includes two vertically arranged obtuse-angled folded plates, with their obtuse-angled openings facing the die rotary table 3. A support adjusting screw 10 is provided at the end of the movable support 8, which drives the movable support 8 to slide along the support slide 9. The support slide 9 and the support adjusting screw 10 constitute a precision displacement mechanism, achieving high-precision positioning of the movable support 8. The upper end of the movable bracket 8 is hinged to the rear end of the main hydraulic cylinder adjusting rod 6 via a rotating shaft, allowing the main hydraulic cylinder adjusting rod 6 to open and close 90° around the rotating shaft, controlling the vertical height of the punch 5. The punch 5 is mounted on the front end of the piston rod of the main hydraulic cylinder adjusting rod 6, and is used to work in conjunction with the die 4 to spin-form the workpiece to be processed. The punch 5 and the die 4 are a replaceable matching mold set.

[0026] One end of the piston rod of the main hydraulic cylinder adjusting rod 6 is hinged to one end of the auxiliary hydraulic cylinder adjusting rod 7, and the other end of the auxiliary hydraulic cylinder adjusting rod 7 is hinged to the lower end of the movable bracket 8. The extension and retraction direction of the auxiliary hydraulic cylinder adjusting rod 7 is perpendicular to the axis of the rotating shaft, and is used to precisely adjust the horizontal position of the punch 5. The main hydraulic cylinder adjusting rod 6 and the auxiliary hydraulic cylinder adjusting rod 7 work together to adjust the spatial position of the punch.

[0027] A hydraulic control system and a main control box 16 are electrically connected to one side of the workbench. The hydraulic control system includes a hydraulic station 13, a hydraulic valve assembly 14, and a motor 15. The hydraulic valve assembly 14 integrates a proportional flow valve and a directional valve, used to receive commands from the main control box 16 and control the linkage trajectory of the main hydraulic cylinder adjusting rod 6 and the auxiliary hydraulic cylinder adjusting rod 7, so that the punch maintains constant pressure contact with the workpiece in real time during the spinning process. The motor is driven by the hydraulic station and provides power to the hydraulic station.

[0028] The main control box is electrically connected to the motor, the integrated reducer, and the hydraulic valve assembly. The main control box 16 is used to control the rotational movement of the integrated reducer 2 and to control the hydraulic valve assembly 14 to drive the main hydraulic cylinder adjusting rod 6 and the auxiliary hydraulic cylinder adjusting rod 7 to achieve coordinated movement.

[0029] The integrated speed reducer 2 outputs a speed of 5 to 20 rpm, and stepless speed regulation is achieved through the main control box 16.

[0030] The working process of this utility model: First, the tapered tube workpiece to be processed is placed on the die rotary table 3. The first fixed guide assembly 12 and the second fixed guide assembly 17, which are arranged on both sides of the workpiece circumference, are adjusted by rotating the handle so that the V-shaped groove structure of the guide wheel clamps the outer wall of the workpiece to accommodate workpieces of different diameters. Four sets of inclined auxiliary rollers 11 evenly distributed on the worktable surface jointly support the workpiece, forming a self-centering and stable support structure.

[0031] Centrally controlled by buttons on the main control box 16, the reducer 2 drives the die rotary table 3 to rotate at a steplessly adjustable speed within the range of 5-20 rpm, simultaneously rotating the workpiece. At the same time, the motor 15 and hydraulic valve assembly 14 work in concert under the control of the main control box 16, driving the main hydraulic cylinder adjusting rod 6 to rotate around the rotation axis. The piston cylinder pushes the punch 5 to press down on the workpiece, while the auxiliary hydraulic cylinder adjusting rod 7 performs real-time precise micro-adjustments to the horizontal position of the punch. The hydraulic valve assembly 14 precisely controls the linkage action of the main hydraulic cylinder adjusting rod 6 and the auxiliary hydraulic cylinder adjusting rod 7, ensuring that the punch maintains a high-precision fit with the workpiece surface throughout the spinning process, gradually achieving workpiece forming.

[0032] Furthermore, this utility model allows for the replacement of the punch 5 and die 4 according to processing requirements, thus adapting to workpieces of different shapes, sizes, and process requirements. Overall operation is convenient and production efficiency is high.

[0033] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A vertical large-arc spinning machine, comprising a workbench (1), characterized in that: The worktable (1) is divided into left and right parts. A die rotation table (3) is set in the middle of the left part of the worktable (1). A die (4) is installed above the die rotation table (3) and a speed reducer (2) is connected below to drive the die rotation table (3) to rotate. Several auxiliary roller tracks (11) are also set around the die rotation table (3) on the left side of the worktable (1) to support and guide the workpiece to be processed to rotate synchronously with the die rotation table (3). A fixed guide assembly is also set on one side of the die rotation table (3) to clamp and adapt to workpieces of different diameters. A support slide (9) is provided on the right side of the workbench (1). A movable support (8) is movably provided on the support slide (9). The upper end of the movable support (8) is hinged to the rear end of the cylinder of the main hydraulic cylinder adjusting rod (6) through a rotating shaft, so that the main hydraulic cylinder adjusting rod (6) can open and close around the rotating shaft. A punch (5) is installed at the front end of the piston rod of the main hydraulic cylinder adjusting rod (6) for working with the die (4) to spin-form the workpiece to be processed. One end of the piston rod of the main hydraulic cylinder adjusting rod (6) is hinged to one end of the auxiliary hydraulic cylinder adjusting rod (7), and the other end of the auxiliary hydraulic cylinder adjusting rod (7) is hinged to the lower end of the movable support (8). The extension and retraction direction of the auxiliary hydraulic cylinder adjusting rod (7) is perpendicular to the axis of the rotating shaft, and is used to precisely adjust the horizontal position of the punch (5). A hydraulic control system and a main control box (16) are electrically connected to one side of the workbench. The main control box (16) is used to control the operation of the speed reducer (2) and the hydraulic control system. The hydraulic control system is used to receive the instructions from the main control box (16) and drive the linkage of the main hydraulic cylinder adjusting rod (6) and the auxiliary hydraulic cylinder adjusting rod (7).

2. The vertical large-arc spinning equipment according to claim 1, characterized in that: The punch (5) and the die (4) are interchangeable matching mold sets.

3. The vertical large-arc spinning equipment according to claim 1, characterized in that: The end of the movable bracket (8) is provided with a bracket adjustment screw (10), which drives the movable bracket (8) to slide along the bracket slide (9).

4. The vertical large-arc spinning equipment according to claim 1, characterized in that: The fixed guide assembly includes a first fixed guide assembly (12) and a second fixed guide assembly (17). One end of the first fixed guide assembly (12) and the second fixed guide assembly (17) is provided with a handle for radial telescopic adjustment, and the other end is connected to a guide wheel. The working surface of the guide wheel is a V-shaped groove structure, which forms a line contact clamp with the outer wall of the workpiece to be processed.

5. A vertical large-arc spinning equipment according to claim 1, characterized in that: The auxiliary roller conveyor (11) is provided in four sections. The auxiliary roller conveyor (11) is arranged at an angle of 30° to 45° relative to the axis of the die rotating table (3) to form a conical self-centering support structure for the workpiece to be processed, which is used for auxiliary support for the feeding and discharging of the workpiece.

6. A vertical large-arc spinning equipment according to claim 1, characterized in that: The hydraulic control system includes a hydraulic station (13), a hydraulic valve assembly (14), and a motor (15). The hydraulic valve assembly (14) integrates a proportional flow valve and a directional valve. The motor (15) is connected to the hydraulic station (13) and provides power to the hydraulic station (13).

7. A vertical large-arc spinning device according to claim 6, characterized in that: The main control box (16) is electrically connected to the motor (15), the speed reducer (2), and the hydraulic valve assembly (14).

8. A vertical large-arc spinning equipment according to claim 1, characterized in that: The integrated speed reducer (2) outputs a speed of 5 to 20 rpm and achieves stepless speed regulation through the main control box (16).

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