Internal expansion fixing rotary structure for circular workpieces

Abstract

The utility model discloses a kind of circular workpiece inner expansion fixed rotary structure, it is related to machining technical field, including rack, motor, lifting hook, rotary gear, guide rail, toothed plate, inner expansion cylinder, inner expansion rod body, circular workpiece body and inner groove;The motor is fixedly connected in the right side of rack;The lifting hook is fixedly connected in the top end of rack;The rotary gear is fixedly connected in the output end of motor;Clamping and fixing are carried out from the inner side wall of circular workpiece body by inner expansion cylinder, both avoid the extrusion damage of traditional outer periphery clamping to coiled material edge, and can realize stable and reliable fixed effect, while the structure of inner expansion rod body can be adapted to different inner diameter size circular coiled material, greatly improve the versatility of device;The transmission structure of cooperation motor, rotary gear, guide rail, toothed plate can accurately drive circular workpiece body to rotate, without artificial pushing or relying on external friction drive, while reducing safety hazard, reduce time cost and manpower cost in production process.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a rotating structure for fixing the internal expansion of a circular workpiece. Background Technology

[0002] Large circular rolls are basic workpieces widely used in industrial production. They are usually formed by rolling materials such as metals, plastics, and textiles. They have a closed circular structure with a pre-drilled hole in the center. They are commonly found in industries such as steel rolling, film production, and textile printing and dyeing. They are the core processing objects for subsequent processing steps such as cutting, laminating, and splicing.

[0003] In existing technologies, when moving large circular rolls, cranes are often used in conjunction with slings for lifting and transporting, forklifts for lifting and transferring, or manual pushing with pry bars. In some scenarios, pallets, roller frames, and other auxiliary tools are used. When rotating the roll, it is usually necessary to first clamp and fix it from the outer periphery of the roll with a clamp, and then drive the clamp to rotate the roll with a motor. Alternatively, the edge of the roll can be pushed manually to rotate it around its own central axis. A few specialized devices use external support rollers that contact the outer periphery of the roll, and the roll is rotated by friction from the rotation of the rollers.

[0004] Because large circular rolls generally have a large diameter and weight, their large size and heavy weight lead to significant limitations in existing operating methods. During movement, not only is it necessary for multiple people to work together, but positioning accuracy is also difficult to control, and safety hazards such as roll slippage and displacement are prone to occur. During rotation, the outer peripheral clamping fixation can easily cause squeezing damage to the edges of the roll, the manual pushing method is labor-intensive and has poor rotational stability, and the external roller drive is not adaptable enough due to the limitation of the outer diameter of the roll. These problems all result in poor convenience of moving and rotating large circular rolls, which in turn affects the efficiency of subsequent processing steps and increases the time and labor costs of production operations. Utility Model Content

[0005] The purpose of this utility model is to provide a rotating structure for fixing the internal expansion of a circular workpiece, so as to solve the technical problems in the prior art where large circular rolls generally have a large diameter and weight, and their large volume and heavy mass make it difficult to control the positioning accuracy during movement, and the rolls are prone to slippage, displacement and other safety hazards.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution: A circular workpiece internal expansion and fixing rotation structure includes a frame, a motor, a hook, a rotating gear, a guide rail, a toothed plate, an internal expansion cylinder, an internal expansion rod, a circular workpiece body, and an inner groove. The motor is fixed to the right side of the frame; the hook is fixed to the top of the frame; the rotating gear is fixed to the output end of the motor and rotatably connected inside the frame; the guide rail is rotatably connected inside the frame; the toothed plate is fixed to the outer wall of the guide rail and meshes with the rotating gear; the internal expansion cylinder is fixed to the inner wall of the guide rail; the internal expansion rod is fixed to the right side of the internal expansion cylinder; the circular workpiece body is disposed on the internal expansion rod; an inner groove is formed inside the circular workpiece body, and the circular workpiece body is nested on the internal expansion rod body through the inner groove.

[0007] As a further embodiment of this utility model: the inner sidewall of the frame is rotatably connected to a limiting roller; a convex guide plate is fixedly connected to the top of the guide rail, and the convex guide plate corresponds to the limiting roller.

[0008] The beneficial effects of this utility model are as follows: The internal expansion cylinder clamps and fixes the circular workpiece from its inner side wall, avoiding the squeezing damage to the edge of the roll material caused by traditional external clamping, while achieving a stable and reliable fixing effect. Simultaneously, the structure of the internal expansion cylinder can adapt to circular roll materials of different inner diameters, significantly improving the versatility of the device. Combined with the transmission structure of the motor, rotating gear, guide rail, and toothed plate, it can precisely drive the circular workpiece to rotate without manual pushing or reliance on external friction drive, effectively reducing labor intensity and improving the stability and positioning accuracy of the rotation operation. The ingenious overall structural design integrates clamping and rotation driving functions, solving the problem of inconvenient movement and rotation caused by the large volume and weight of large circular rolls, simplifying the operation process, improving the efficiency of subsequent processing steps, reducing safety hazards, and lowering time and labor costs in the production process. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal expansion rod structure in this utility model; Figure 3 This is a utility model Figure 1 Enlarged view of point A in the middle; In the diagram: 1. Frame; 2. Motor; 3. Hook; 4. Rotary gear; 5. Guide rail; 6. Gear plate; 7. Internal expansion cylinder; 8. Internal expansion rod; 9. Circular workpiece; 10. Inner groove; 11. Convex guide plate; 12. Limiting roller. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0012] like Figures 1-3 As shown, a circular workpiece internal expansion and fixing rotation structure includes a frame 1, a motor 2, a hook 3, a rotating gear 4, a guide rail 5, a toothed plate 6, an internal expansion cylinder 7, an internal expansion rod 8, a circular workpiece body 9, and an inner groove 10. The motor 2 is fixed to the right side of the frame 1; the hook 3 is fixed to the top of the frame 1; the rotating gear 4 is fixed to the output end of the motor 2 and is rotatably connected inside the frame 1; the guide rail 5 is rotatably connected inside the frame 1; the toothed plate 6 is fixed to the outer wall of the guide rail 5 and meshes with the rotating gear 4; the internal expansion cylinder 7 is fixed to the inner wall of the guide rail 5; the internal expansion rod 8 is fixed to the right side of the internal expansion cylinder 7; the circular workpiece body 9 is disposed on the internal expansion rod 8; the circular workpiece body 9 has an inner groove 10 inside, and the circular workpiece body 9 is nested on the internal expansion rod 8 through the inner groove 10.

[0013] During operation, the hook 3 is moved and raised by a sling. It moves into the inner groove 10 inside the circular workpiece 9 via the inner expansion rod 8. The inner expansion cylinder 7 causes the inner expansion rod 8 to expand, clamping and fixing the inner groove 10. First, it moves upward in conjunction with the sling device of the hook 3. At this time, the motor 2 causes the rotating gear 4 to rotate, which in turn causes the toothed plate 6 to rotate, thereby causing the guide rail 5 and the inner expansion cylinder 7 to rotate together, completing the rotation operation of the circular workpiece 9. Then, it moves again in conjunction with the sling device of the hook 3. The expansion of the inner expansion rod 8 ends by the inner expansion cylinder 7, releasing the inner expansion rod 8 from the fixing control of the circular workpiece 9. The inner sidewall of the frame 1 is rotatably connected to a limiting roller 12; the top end of the guide rail 5 is fixedly connected to a convex guide plate 11, and the convex guide plate 11 corresponds to the limiting roller 12.

[0014] The rolling engagement of the rotating gear 4 with the toothed plate 6 causes the guide rail 5 to rotate. The rotation of the guide rail 5 causes the convex guide plate 11 to rub against the limiting roller 12. The rotation of the limiting roller 12 and the engagement with the convex guide plate 11 can limit the stability of the position of the guide rail 5 and prevent the toothed plate 6 from derailing from the rotating gear 4 during rotation. The working principle of this utility model is as follows: During operation, the hook 3 is moved and raised / lowered by a sling. The inner expansion rod 8 moves into the inner groove 10 inside the circular workpiece 9. The inner expansion cylinder 7 expands the inner expansion rod 8, clamping and fixing the inner groove 10. First, it moves upwards in conjunction with the sling device of the hook 3. At this time, the motor 2 rotates the rotating gear 4, which in turn rotates the toothed plate 6, causing the guide rail 5 and the inner expansion cylinder 7 to rotate together, thus completing the lifting operation. The circular workpiece 9 is rotated and moved in conjunction with the lifting cable device of the hook 3. The expansion of the inner expansion rod 8 is terminated by the inner expansion cylinder 7, which releases the inner expansion rod 8 from the fixed control of the circular workpiece 9. The rolling action of the rotating gear 4 and the toothed plate 6 causes the guide rail 5 to rotate. The rotation of the guide rail 5 causes the convex guide plate 11 to rub against the limiting roller 12. The rotation of the limiting roller 12 and the action of the convex guide plate 11 can limit the stability of the guide rail 5 position and prevent the toothed plate 6 from derailing from the rotating gear 4 during the rotation.

[0015] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A rotating structure for fixing an internally expanding circular workpiece, characterized in that, It includes a frame (1), a motor (2), a hook (3), a rotating gear (4), a guide rail (5), a toothed plate (6), an internal expansion cylinder (7), an internal expansion rod body (8), a circular workpiece body (9), and an inner groove (10). The motor (2) is fixed to the right side of the frame (1); The hook (3) is fixed to the top of the frame (1); The rotating gear (4) is fixed to the output end of the motor (2), and the rotating gear (4) is rotatably connected inside the frame (1); The guide rail (5) is rotatably connected to the inside of the frame (1); The toothed plate (6) is fixed to the outer wall of the guide rail (5), and the toothed plate (6) is meshed with the rotating gear (4); The internal expansion cylinder (7) is fixed to the inner wall of the guide rail (5); The inner expansion rod (8) is fixed to the right side of the inner expansion cylinder (7); The circular workpiece body (9) is mounted on the inner expansion rod body (8); The circular workpiece body (9) has an inner groove (10) inside, and the circular workpiece body (9) is nested on the inner expansion rod body (8) through the inner groove (10).

2. The circular workpiece internal expansion fixing rotation structure according to claim 1, characterized in that, The inner sidewall of the frame (1) is rotatably connected to a limiting roller (12); the top end of the guide rail (5) is fixedly connected to a convex guide plate (11), and the convex guide plate (11) corresponds to the limiting roller (12).

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