A thin-walled conical cabin section shell rapid self-centering positioning device

Abstract

This utility model provides a rapid self-centering positioning device for thin-walled conical compartment shells, relating to the field of conical compartment shell clamping technology. It includes a support plate, a positioning cylinder on the right side of the support plate, a limiting plate on the outer side of the positioning cylinder, a first positioning component extending outward from the inside of the positioning cylinder, a protective component on the outer side of the first positioning component, and a second positioning component extending outward and located to the right of the first positioning component inside the positioning cylinder. This rapid self-centering positioning device for thin-walled conical compartment shells enables rapid positioning of the large and small ends of the thin-walled conical compartment shell. It can quickly conform to the inner contour of the compartment, and the spring buffering effect prevents deformation of the thin wall due to excessive local pressure. Furthermore, it can be appropriately adjusted according to the large and small ends of the thin-walled conical compartment shell, effectively improving the applicability and flexibility of the device.

Description

Technical Field

[0001] This utility model relates to the field of conical compartment shell clamping technology, and in particular to a rapid self-centering positioning device for thin-walled conical compartment shells. Background Technology

[0002] With the rapid development of manufacturing technology, casting, as a process with few or no cutting operations, has been widely used in fields such as machinery, metallurgy, and aerospace. It can cast various high-strength, precision, thin-walled castings with complex shapes. Casting thin-walled shells has gradually replaced welding, riveting, or forging shells, which can not only significantly reduce costs and shorten the manufacturing cycle, but also ensure the strength of the shell and improve its processing performance.

[0003] A search revealed Chinese Patent Publication No. CN207087406U, which discloses a rapid self-centering positioning device for a thin-walled conical compartment shell. This device includes a shaft mounted on a chuck's three jaws and a positioning support portion mounted on the shaft. The positioning support portion comprises a small-end positioning support portion and a large-end positioning support portion. The small-end positioning support portion includes a small-end end face pressing disc and a small-end positioning disc. In use, this technical solution requires multiple nuts to engage with the threads of the positioning disc to complete the assembly of each module, thereby fixing the positions of the large and small ends of the conical compartment. However, this structure involves frequent threaded locking and adjustment of nuts during the positioning process, making the operation cumbersome and time-consuming. Furthermore, disassembly also requires loosening the nuts one by one, increasing operational complexity and severely impacting processing efficiency, failing to meet usage requirements. Therefore, a rapid self-centering positioning device for a thin-walled conical compartment shell is proposed to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a rapid self-centering positioning device for thin-walled conical compartment shells to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rapid self-centering positioning device for a thin-walled conical compartment shell includes a support plate, a positioning cylinder on the right side of the support plate, a limiting disk on the outside of the positioning cylinder, a first positioning component extending to its outside inside the positioning cylinder, a protective component on its outside outside the first positioning component, and a second positioning component extending to its outside and located to the right of the first positioning component inside the positioning cylinder. The first positioning component includes a fixed sleeve, which is fixedly installed on the outside of the positioning cylinder and located on the right side of the limiting plate. A rotating rod that extends through to the left side of the support plate is rotatably installed inside the positioning cylinder. A first bevel gear is fixedly installed at one end of the rotating rod inside the positioning cylinder. Several threaded posts that extend into the fixed sleeve are rotatably installed inside the positioning cylinder. A second bevel gear that meshes with the first bevel gear is fixedly installed at one end of the threaded post inside the positioning cylinder. A threaded sleeve that extends through to the outside of the fixed sleeve is threadedly installed on the outside of the threaded post. A first pressing block is fixedly installed at one end of the threaded sleeve outside the fixed sleeve.

[0006] Preferably, the protective component includes a compression pad, which is movably installed inside the first compression block and extends to its outer side. A first anti-slip groove is provided on the side of the compression pad away from the first compression block, and a first spring fixedly installed inside the compression pad and fixedly connected to the first compression block.

[0007] Preferably, the second positioning component includes a bidirectional screw, which is rotatably mounted inside the positioning cylinder and extends to its right side at one end. The bidirectional screw is located to the right of the rotating rod. A turntable is fixedly mounted at the end of the bidirectional screw located outside the positioning cylinder. Two threaded blocks located inside the positioning cylinder are threadedly mounted on the outer side of the bidirectional screw. Several pushing blocks that penetrate to the outer side of the positioning cylinder are rotatably mounted on the outer side of the threaded blocks. A second pressing block located outside the positioning cylinder is rotatably mounted between the pushing block on the left and the pushing block on the right. An inner support pad is movably mounted on the side of the second pressing block away from the pushing block.

[0008] Preferably, a guide plate that is sleeved on the outside of the threaded post is fixedly installed at one end of the threaded sleeve located inside the fixed sleeve.

[0009] Preferably, the push block has an inclined structure design, and connecting plates that are fixedly connected to the threaded block and the second extrusion block are rotatably installed on both sides of the push block. The outer side of the positioning cylinder has through holes that are adapted to the moving trajectory of the push block and the connecting plates.

[0010] Preferably, the inner support pad has several second anti-slip grooves on the side away from the second extrusion block, and several second springs are fixedly installed between the inner support pad and the interior of the second extrusion block.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This rapid self-centering positioning device for thin-walled conical compartment shells achieves rapid positioning of the small end of the thin-walled conical compartment shell by using a limiting plate, a first positioning component, and a protective component in combination. The first positioning component utilizes bevel gear transmission (meshing between the first and second bevel gears) and thread transmission (the threaded column and threaded sleeve engage). By simply rotating the rotating rod, multiple first extrusion blocks can be driven to expand outward synchronously. In conjunction with the extrusion pad and first spring of the protective component, it can quickly conform to the contour of the small end of the compartment and prevent the thin wall from deforming due to excessive local pressure through the buffering effect of the spring. At the same time, it can be appropriately adjusted according to the small end of the thin-walled conical compartment shell.

[0012] This rapid self-centering positioning device for thin-walled conical compartment shells utilizes a second positioning component. This component, through the threaded engagement of a bidirectional screw and a threaded block, allows the rotating disc to drive the push blocks on both sides to move synchronously. This causes the second pressing block and the inner support pad to apply force evenly to the inner wall of the large end of the compartment, achieving stable inner support positioning of the large end. Furthermore, the device can be appropriately adjusted according to the large end of the thin-walled conical compartment shell, effectively improving its applicability and flexibility. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of a rapid self-centering positioning device for a thin-walled conical compartment shell provided by this utility model; Figure 2 A perspective view of the main positioning structure of a rapid self-centering positioning device for a thin-walled conical compartment shell provided by this utility model; Figure 3 A three-dimensional structural view of the first positioning component of a rapid self-centering positioning device for a thin-walled conical compartment shell provided by this utility model; Figure 4 A three-dimensional structural view of a protective component of a rapid self-centering positioning device for a thin-walled conical compartment shell provided by this utility model; Figure 5 A three-dimensional view of the second positioning component structure of a rapid self-centering positioning device for a thin-walled conical compartment shell provided by this utility model; Figure 6 A perspective view of the second spring structure of a rapid self-centering positioning device for a thin-walled conical compartment shell provided by this utility model.

[0014] Legend: 1. Support plate; 2. Positioning cylinder; 3. Limiting plate; 4. First positioning component; 41. Fixing sleeve; 42. Rotating rod; 43. First bevel gear; 44. Threaded column; 45. Second bevel gear; 46. Threaded sleeve; 461. Guide plate; 47. First pressing block; 5. Protective component; 51. Pressing pad; 52. First anti-slip groove; 53. First spring; 6. Second positioning component; 61. Bidirectional screw; 62. Turntable; 63. Threaded block; 64. Pushing block; 641. Connecting plate; 642. Through hole; 65. Second pressing block; 66. Inner support pad; 661. Second anti-slip groove; 662. Second spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Example like Figures 1-6As shown, this utility model provides a technical solution: a rapid self-centering positioning device for a thin-walled conical compartment shell, including a support plate 1, which serves as the installation base and stable support structure of the device. A positioning cylinder 2 is fixedly installed on the right side of the support plate 1, which is the core bearing structure. A limiting disk 3 is fixedly installed on the outer side of the positioning cylinder 2. The limiting disk 3 is mainly used to limit the axial position of the compartment.

[0020] The positioning cylinder 2 has a first positioning component 4 extending to its outer side, which is movably installed inside. The first positioning component 4 includes a fixing sleeve 41, which is fixedly installed on the outer side of the positioning cylinder 2 and located on the right side of the limiting plate 3. A rotating rod 42 extending through to the left side of the support plate 1 is rotatably installed inside the positioning cylinder 2. A first bevel gear 43 is fixedly installed at one end of the rotating rod 42 inside the positioning cylinder 2. Several threaded pins 44 extending into the fixing sleeve 41 are rotatably installed inside the positioning cylinder 2. The fixing sleeve 41 serves as the mounting base for the threaded pins 44. A first bevel gear 43 is fixedly installed at one end of the threaded pin 44 inside the positioning cylinder 2. The second bevel gear 45 meshes with the bevel gear 43. A threaded sleeve 46 is threaded on the outer side of the threaded column 44 and extends to the outer side of the fixed sleeve 41. A guide plate 461 is fixedly installed on the outer side of the threaded column 44 at one end of the threaded sleeve 46 located inside the fixed sleeve 41. The guide plate 461 restricts the threaded sleeve 46 to move only along the axial direction of the threaded column 44. A first pressing block 47 is fixedly installed on the outer side of the threaded sleeve 46 located outside the fixed sleeve 41. The rotational motion is converted into linear motion through threaded transmission. The first pressing block 47 expands synchronously with the threaded sleeve 46, directly contacts the outer wall of the small end of the compartment and applies pressure to complete the radial positioning of the small end.

[0021] A protective component 5 is movably mounted on the outer side of the first positioning component 4. The protective component 5 includes a compression pad 51, which is movably mounted on the inner side of the first compression block 47 and extends to its outer side. A first anti-slip groove 52 is provided on the side of the compression pad 51 away from the first compression block 47. A first spring 53, which is fixedly connected to the first compression block 47, is fixedly installed inside the compression pad 51. This rapid self-centering positioning device for the thin-walled conical cabin section shell, through the cooperative use of the limiting plate 3, the first positioning component 4, and the protective component 5, achieves the positioning of the thin-walled conical... The small end of the conical compartment shell is quickly positioned. The first positioning component 4 uses bevel gear transmission (first bevel gear 43 meshes with second bevel gear 45) and thread transmission (threaded column 44 engages with threaded sleeve 46). By simply rotating the rotating rod 42, multiple first extrusion blocks 47 can be driven to expand outward synchronously. In conjunction with the extrusion pad 51 and the first spring 53 of the protective component 5, it can quickly fit the contour of the small end of the compartment and prevent the thin wall from deforming due to excessive local pressure through the buffering effect of the spring. At the same time, it can be appropriately adjusted according to the small end of the thin-walled conical compartment shell.

[0022] A second positioning component 6, extending outwards and located to the right of the first positioning component 4, is movably installed inside the positioning cylinder 2. The second positioning component 6 includes a bidirectional screw 61, which is rotatably installed inside the positioning cylinder 2 with one end extending to its right side. The bidirectional screw 61 is located to the right of the rotating rod 42. A turntable 62 is fixedly installed at the end of the bidirectional screw 61 located outside the positioning cylinder 2. Two threaded blocks 63 are threadedly installed on the outer side of the bidirectional screw 61 and located inside the positioning cylinder 2. Several threaded blocks 63 are rotatably installed on the outer side of the threaded blocks 63 and penetrate into the positioning cylinder. The outer push block 64, the left push block 64 and the right push block 64 are rotatably mounted with a second extrusion block 65 located on the outer side of the positioning cylinder 2. The push block 64 is designed with an inclined structure. The two sides of the push block 64 are rotatably mounted with connecting plates 641 that are fixedly connected to the threaded block 63 and the second extrusion block 65 respectively, serving as a force transmission bridge. The outer side of the positioning cylinder 2 is provided with through holes 642 that are adapted to the movement trajectory of the push block 64 and the connecting plate 641, providing movement space, while restricting the push block 64 and the connecting plate 641 to move only radially.

[0023] An inner support pad 66 is movably installed on the side of the second extrusion block 65 away from the push block 64. Several second anti-slip grooves 661 are formed on the side of the inner support pad 66 away from the second extrusion block 65. Several second springs 662 are fixedly installed between the inner support pad 66 and the interior of the second extrusion block 65. Both the extrusion pad 51 and the inner support pad 66 are made of rigid elastic material (such as polyurethane). This thin-walled conical compartment shell quick self-centering positioning device, by setting the second positioning component 6, the second positioning component 6, through the threaded engagement of the bidirectional screw 61 and the threaded block 63, can drive the push blocks 64 on both sides to move synchronously by rotating the turntable 62, thereby driving the second extrusion block 65 and the inner support pad 66 to apply force evenly to the inner wall of the large end of the compartment, realizing the stable inner support positioning of the large end. It can also be appropriately adjusted according to the large end of the thin-walled conical compartment shell, effectively improving the applicability and flexibility of the device.

[0024] The working process of this utility model: Step 1: By rotating the rotating rod 42 (located inside the positioning cylinder 2 and extending to the left side of the support plate 1), the rotating rod 42 drives the first bevel gear 43 at one end to rotate synchronously; the first bevel gear 43 meshes with the second bevel gear 45 (fixed to the inside of the threaded column 44), driving the threaded column 44 to rotate; the threaded sleeve 46 on the outside of the threaded column 44 (fitted inside the threaded column 44, with the first extrusion block 47 fixed on the outside) moves away from the center of the positioning cylinder 2 due to the threaded transmission, pushing the first extrusion block 47 to expand outward until the extrusion pad 51 (movably installed inside the first extrusion block 47) contacts the outer wall of the small end of the compartment; under the buffering effect of the first spring 53 (fixed between the extrusion pad 51 and the first extrusion block 47), the extrusion pad 51 evenly conforms to the contour of the small end of the compartment, completing the flexible positioning of the small end; Step two: By rotating the turntable 62 (fixed to the right end of the bidirectional screw 61), the bidirectional screw 61 rotates inside the positioning cylinder 2, and the two threaded blocks 63 on its outer side (symmetrically distributed on both sides of the bidirectional screw 61) move away from each other. The threaded blocks 63 push the inclined push block 64 (located outside the positioning cylinder 2) to move outward synchronously through the connecting plate 641 (both ends are rotatably connected to the threaded block 63 and the push block 64 respectively). The push block 64 further drives the second extrusion block 65 to expand outward through another set of connecting plates 641. The second extrusion block 65 pushes the inner support pad 66 (movably installed on the outside of the second extrusion block 65) to fit against the inner wall of the large end of the compartment. The second anti-slip groove 661 of the inner support pad 66 increases the friction with the inner wall of the compartment. At the same time, the second spring 662 (fixed between the inner support pad 66 and the second extrusion block 65) provides buffering to avoid excessive inner support force causing thin-wall deformation. Finally, the rigid inner support positioning of the large end is completed, which effectively facilitates the user to process and position the conical compartment shell.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid self-centering positioning device for a thin-walled conical cabin section shell, comprising a support plate (1), a positioning cylinder (2) disposed on the right side of the support plate (1), and a limiting disk (3) disposed on the outer side of the positioning cylinder (2), characterized in that: The positioning cylinder (2) is provided with a first positioning component (4) extending to its outer side, and a protective component (5) is provided on the outer side of the first positioning component (4). The positioning cylinder (2) is provided with a second positioning component (6) extending to its outer side and located to the right of the first positioning component (4). The first positioning component (4) includes a fixed sleeve (41), which is fixedly installed on the outside of the positioning cylinder (2) and located on the right side of the limiting plate (3). A rotating rod (42) is rotatably installed inside the positioning cylinder (2) and extends to the left side of the support plate (1). A first bevel gear (43) is fixedly installed at one end of the rotating rod (42) inside the positioning cylinder (2). A number of threaded columns (44) extending into the fixed sleeve (41) are rotatably installed inside the positioning cylinder (2). A second bevel gear (45) meshing with the first bevel gear (43) is fixedly installed at one end of the threaded column (44) inside the positioning cylinder (2). A threaded sleeve (46) extending to the outside of the fixed sleeve (41) is threadedly installed on the outside of the threaded column (44). A first pressing block (47) is fixedly installed at one end of the threaded sleeve (46) outside the fixed sleeve (41).

2. The rapid self-centering positioning device for a thin-walled conical compartment shell according to claim 1, characterized in that: The protective component (5) includes a compression pad (51), which is movably installed on the inner side of the first compression block (47) and extends to its outer side. A first anti-slip groove (52) is provided on the side of the compression pad (51) away from the first compression block (47). A first spring (53) is fixedly installed inside the compression pad (51) and fixedly connected to the first compression block (47).

3. The rapid self-centering positioning device for a thin-walled conical compartment shell according to claim 1, characterized in that: The second positioning component (6) includes a bidirectional screw (61), which is rotatably installed inside the positioning cylinder (2) and extends to its right side. The bidirectional screw (61) is located to the right of the rotating rod (42). A turntable (62) is fixedly installed at one end of the bidirectional screw (61) outside the positioning cylinder (2). Two threaded blocks (63) are threaded on the outside of the bidirectional screw (61) and located inside the positioning cylinder (2). Several push blocks (64) are rotatably installed on the outside of the threaded blocks (63) and extend to the outside of the positioning cylinder (2). A second pressing block (65) located outside the positioning cylinder (2) is rotatably installed between the push block (64) on the left and the push block (64) on the right. An inner support pad (66) is movably installed on the side of the second pressing block (65) away from the push block (64).

4. The rapid self-centering positioning device for a thin-walled conical compartment shell according to claim 1, characterized in that: The threaded sleeve (46) is fixedly installed at one end inside the fixed sleeve (41) with a guide plate (461) sleeved on the outside of the threaded post (44).

5. The rapid self-centering positioning device for a thin-walled conical compartment shell according to claim 3, characterized in that: The push block (64) is designed with an inclined structure. The two sides of the push block (64) are rotatably mounted with connecting plates (641) that are fixedly connected to the threaded block (63) and the second extrusion block (65), respectively. The outer side of the positioning cylinder (2) is provided with through holes (642) that are adapted to the moving trajectory of the push block (64) and the connecting plate (641).

6. The rapid self-centering positioning device for a thin-walled conical compartment shell according to claim 3, characterized in that: The inner support pad (66) has several second anti-slip grooves (661) on the side away from the second extrusion block (65), and several second springs (662) are fixedly installed between the inner support pad (66) and the interior of the second extrusion block (65).

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