Anti-deformation clamping device for thin-wall shell machining

Abstract

The utility model discloses an anti-deformation clamping device for thin-wall shell processing, which relates to the technical field of thin-wall shell deformation prevention and comprises a base, a workbench is fixedly connected to the middle of the upper end of the base, and fixing blocks are fixedly connected to four corners of the upper end of the base. Two-way threaded rods are rotationally installed between the left fixing block and the right fixing block, the left end and the right end of the outer surface of each two-way threaded rod are in threaded connection with a movable plate, a buffer pad is arranged on the inner side of a clamping plate, clamping force can more evenly act on the thin-wall shell, and meanwhile through cooperation of a telescopic cylinder and a spring, the clamping force can be more evenly exerted on the thin-wall shell. The clamping plates have certain buffering capacity when making contact with the thin-wall shell, deformation of the thin-wall shell caused by instant too large clamping force is further prevented, after the thin-wall shell is clamped, the positioning plates are fastened in the fixing frame through the fixing pieces, the thin-wall shell can be prevented from shaking in the machining process, and the machining efficiency is improved. And therefore, the thin-wall shell can be prevented from being deformed in the machining process.

Description

Technical Field

[0001] This utility model relates to the field of anti-deformation technology for thin-walled shells, specifically to a clamping device for anti-deformation processing of thin-walled shells. Background Technology

[0002] Thin-walled shells refer to shell structures with a relatively small wall thickness compared to their overall size. Thin-walled shells are characterized by their light weight and high strength. Rectangular thin-walled shells are often used to encapsulate internal components or containers for liquids and gases. Due to their simplicity, ease of manufacture, and high space utilization, they are widely used in various storage containers, gas or liquid storage tanks, and other equipment. During the processing of rectangular thin-walled shells, whether it is milling, drilling, or boring, precise positioning is required. Therefore, using a clamping device to limit their position can ensure that the thin-walled shell remains in the position required by the design during the processing.

[0003] Most clamping devices clamp parts directly using clamping plates. However, due to the characteristics of thin-walled shells, if the clamping force is not well controlled during the clamping process, the thin-walled parts can easily be deformed due to excessive clamping force, resulting in the scrapping of the thin-walled shell and causing unnecessary economic losses. Based on this, this solution provides a deformation-resistant clamping device for processing thin-walled shells to solve the above-mentioned problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, a deformation-resistant clamping device for thin-walled shell processing is provided. This technical solution addresses the problem that most clamping devices mentioned in the background technology often clamp the parts directly through clamping plates. However, due to the characteristics of thin-walled shells, if the clamping force is not well controlled during the clamping process, the thin-walled parts can easily be deformed due to excessive clamping force, resulting in the scrapping of the thin-walled shell and causing unnecessary economic losses.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a thin-walled shell processing anti-deformation clamping device, including a base, a worktable fixedly connected to the upper middle part of the base, a fixing block fixedly connected to each of the four corners of the upper end of the base, a bidirectional threaded rod rotatably installed between the left and right fixing blocks, a movable plate threadedly connected to the left and right ends of the outer surface of the bidirectional threaded rod, and a clamping assembly provided between the front and rear movable plates;

[0006] The clamping assembly includes a connecting plate, the front and rear sides of which are fixedly connected to the inner sides of two movable plates, a plurality of telescopic cylinders are fixedly connected to the inner side of the connecting plate, a clamping plate is fixedly connected to the inner side of the plurality of telescopic cylinders, a spring is sleeved on the outer surface of the plurality of telescopic cylinders, the left and right ends of the springs are fixedly connected to the inner side of the connecting plate and the outer side of the clamping plate, respectively, a buffer pad is provided on the inner side of the clamping plate, a pressure sensor is provided in the middle of the inner side of the clamping plate, and a positioning plate is fixedly connected to both the front and rear ends of the clamping plate.

[0007] Preferably, a limiting rod is fixedly connected between the left and right fixed blocks and above the bidirectional threaded rod, and the two movable plates are slidably connected to the outer surface of the limiting rod.

[0008] Preferably, two support plates are fixedly connected to the upper front and rear sides of the base. The upper ends of the two support plates are provided with fixing components. The fixing components include fixing frames, and the lower left and right sides of the fixing frames are fixedly connected to the upper ends of the two support plates respectively.

[0009] Preferably, the fixed frame has rectangular openings at both the top and bottom ends, the outer end of the positioning plate is slidably connected to the inside of the fixed frame, and sliders are fixedly connected to both the top and bottom ends of the positioning plate. The sliders are slidably connected to the inside of the rectangular openings, and the positioning plate and sliders are fastened to the inside of the fixed frame by fasteners.

[0010] Preferably, the right ends of the two bidirectional threaded rods are fixedly connected to a connecting rod, the right end of the connecting rod extends through to the right side of the fixing block and is fixedly connected to a pulley, and the two pulleys are provided with protective covers, the left end of the protective cover is fixedly connected to the right ends of the two fixing blocks on the right side on the front and rear sides respectively.

[0011] Preferably, a belt is connected between the two pulleys for transmission, and a rotating rod is fixedly connected to the right side of the front pulley. The right end of the rotating rod extends to the outside of the protective cover and is fixedly connected to a rotating wheel.

[0012] Compared with the prior art, this utility model provides a deformation-resistant clamping device for thin-walled shell processing, which has the following advantages:

[0013] This invention utilizes a buffer pad on the inner side of the clamping plate to distribute the clamping force more evenly onto the thin-walled shell. Simultaneously, the combination of the telescopic cylinder and spring provides the clamping plate with a certain buffering capacity when in contact with the thin-walled shell, further preventing deformation due to excessive clamping force. Furthermore, after clamping the thin-walled shell, the positioning plate is secured inside the fixing frame using fasteners, preventing the shell from shaking during processing and thus preventing deformation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the fixing block in this utility model;

[0016] Figure 3 This is a schematic diagram of the clamping component in this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing component in this utility model;

[0018] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle;

[0019] Figure 6 for Figure 2 A magnified view of a portion of point B in the middle.

[0020] The numbers on the map are:

[0021] 1. Base; 2. Workbench; 3. Fixing block; 4. Bidirectional threaded rod; 5. Limiting rod; 6. Moving plate; 7. Clamping assembly; 701. Connecting plate; 702. Telescopic cylinder; 703. Clamping plate; 704. Spring; 705. Buffer pad; 706. Pressure sensor; 707. Positioning plate; 8. Support plate; 9. Fixing assembly; 901. Fixing frame; 902. Rectangular opening; 903. Fixing component; 904. Slider; 10. Connecting rod; 11. Pulley; 12. Belt; 13. Rotating rod; 14. Rotating wheel; 15. Protective cover. Detailed Implementation

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0023] Reference Figures 1-6As shown, a thin-walled shell processing anti-deformation clamping device includes a base 1. A worktable 2 is fixedly connected to the upper middle part of the base 1. Fixing blocks 3 are fixedly connected to the four corners of the upper end of the base 1. A bidirectional threaded rod 4 is rotatably installed between the left and right fixing blocks 3. A limit rod 5 is fixedly connected between the left and right fixing blocks 3 and above the bidirectional threaded rod 4. Two movable plates 6 are slidably connected to the outer surface of the limit rod 5. Movable plates 6 are threaded to the left and right ends of the outer surface of the bidirectional threaded rod 4. A clamping assembly 7 is provided between the moving plates 6. The clamping assembly 7 includes a connecting plate 701. The front and rear sides of the connecting plate 701 are respectively fixedly connected to the inner sides of the two moving plates 6. A plurality of telescopic cylinders 702 are fixedly connected to the inner side of the connecting plate 701. A clamping plate 703 is fixedly connected to the inner side of the plurality of telescopic cylinders 702. Springs 704 are sleeved on the outer surface of each of the plurality of telescopic cylinders 702. When the clamping plate 703 contacts the thin-walled shell, the plurality of springs 704 are gradually compressed, and the resulting elastic force is applied to the thin-walled shell through the clamping plate 703. Meanwhile, the telescopic cylinder 702 can extend and retract within a certain range, providing guidance and support for the spring 704, ensuring that the elastic force acts evenly and stably on the thin-walled shell. The left and right ends of the spring 704 are fixedly connected to the inner side of the connecting plate 701 and the outer side of the clamping plate 703, respectively. The inner side of the clamping plate 703 is provided with a buffer pad 705, made of polyurethane rubber, which has good elasticity and wear resistance, effectively dispersing the clamping force and preventing scratches on the surface of the thin-walled shell. A pressure sensor 706 is located in the middle of the inner side of the clamping plate 703. The sensor 706 can be a BP350 model. Any existing pressure sensor 706 capable of performing this function can be used without restriction. The pressure sensor 706 is electrically connected to an external control unit. The clamping force is adjusted based on the data fed back by the pressure sensor 706. The operator can determine whether the clamping force is appropriate based on the data from the pressure sensor 706 and adjust the clamping force by rotating the rotating wheel 14, effectively preventing deformation of the thin-walled shell due to excessive clamping force, ensuring processing accuracy and product quality. Positioning plates 707 are fixedly connected to both the front and rear ends of the clamping plate 703.

[0024] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, two support plates 8 are fixedly connected to the front and rear sides of the upper end of the base 1. A fixing component 9 is provided at the upper end of the two support plates 8. The fixing component 9 includes a fixing frame 901. The lower left and right sides of the fixing frame 901 are fixedly connected to the upper ends of the two support plates 8 respectively. Rectangular openings 902 are provided at both the upper and lower ends of the fixing frame 901. The outer end of the positioning plate 707 is slidably connected to the inside of the fixing frame 901. Slider 904s are fixedly connected to both the upper and lower ends of the positioning plate 707. The slider 904s are slidably connected to the inside of the rectangular openings 902. The positioning plate 707 and slider 904 are fastened to the inside of the fixing frame 901 by a fixing member 903, which includes a fastening bolt and a nut. The two sliders 904 and the positioning plate 707 each have threaded grooves that match the fastening bolts. When the clamping plate 703 clamps the thin-walled shell, the positioning plate 907... Positioning plate 707 and slider 904 slide to a suitable position inside fixed frame 901. At this time, fastening bolts are inserted into the threaded groove and nuts are used to fasten positioning plate 707 and slider 904 inside fixed frame 901, thereby preventing clamping plate 703 from shaking or shifting during processing and ensuring stable clamping of thin-walled shell. Connecting rods 10 are fixedly connected to the right ends of the two bidirectional threaded rods 4. The right ends of the connecting rods 10 extend to the right side of fixed block 3 and are fixedly connected to pulleys 11. Protective covers 15 are provided on the outside of the two pulleys 11. The left end of the protective cover 15 is fixedly connected to the right ends of the two fixed blocks 3 on the right side, respectively. A belt 12 is connected between the two pulleys 11. A rotating rod 13 is fixedly connected to the right side of the front pulley 11. The right end of the rotating rod 13 extends to the outside of the protective cover 15 and is fixedly connected to a rotating wheel 14.

[0025] The working principle and usage process of this utility model are as follows: In use, the thin-walled shell to be processed is placed on the upper center of the workbench 2. Then, the rotating wheel 14 is rotated. The rotating wheel 14 drives the front pulley 11 to rotate via the rotating rod 13. The front pulley 11 drives the rear pulley to rotate via the belt 12. This, in turn, drives the two bidirectional threaded rods 4 to rotate via the two connecting rods 10. The rotation of the two bidirectional threaded rods 4 respectively drives the moving blocks connected by threads on their outer surfaces to move towards the thin-walled shell. The movement of the moving blocks towards the thin-walled shell can drive the clamping assembly 7 between the two moving blocks to move towards the thin-walled shell, thereby adjusting the distance between the two clamping plates 703 to clamp thin-walled shells of different sizes. When the clamping plates 703 contact the thin-walled shell, the spring 704 gradually enters a compressed state. Simultaneously, the telescopic cylinder 702 can extend and retract within a certain range, providing guidance and support for the spring 704. The clamping force is evenly and stably applied to the thin-walled shell by a support, and a buffer pad 705 is used to further distribute the clamping force to prevent excessive local stress on the thin-walled shell. At the same time, a pressure sensor 706 installed on the inner side of the clamping plate 703 monitors the clamping force in real time and feeds the data back to the operator. The operator can judge whether the clamping force is appropriate based on the data fed back by the pressure sensor 706. The operator can fine-tune the clamping force by rotating the rotating wheel 14 to prevent deformation of the thin-walled shell due to excessive clamping force. After the thin-walled shell is clamped, the positioning plates 707 at both ends of the clamping plate 703 slide to the corresponding positions inside the fixed frame 901. Then, the positioning plates 707 are fastened to the inside of the fixed frame 901 by the fastener 903 to prevent the clamping plate 703 from shaking or shifting during processing, ensuring stable clamping of the thin-walled shell, which can then be processed.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deformation-preventing clamping device for processing thin-walled housings, characterized in that: The utility model relates to a kind of workbench, including pedestal (1), the upper end middle part of the pedestal (1) is fixedly connected with workbench (2), the upper end four corners position of the pedestal (1) is fixedly connected with fixed block (3), left and right two The bidirectional screw rod (4) is rotatably installed between the fixed block (3), the outer surface left and right ends of the bidirectional screw rod (4) is threadedly connected with moving plate (6), clamping assembly (7) is equipped between front and rear two The moving plate (6); Wherein, the clamping assembly (7) includes connecting plate (701), the front and back sides of the connecting plate (701) are fixedly connected with the inner side of two moving plates (6), the inner side of the connecting plate (701) is fixedly connected with a plurality of telescopic cylinders (702), the inner side of a plurality of telescopic cylinders (702) is fixedly connected with clamping plate (703), the outer surface of a plurality of telescopic cylinders (702) is all equipped with spring (704), the left and right ends of the spring (704) are fixedly connected with the inner side of connecting plate (701) and the outer side of clamping plate (703), the inner side of the clamping plate (703) is equipped with buffer pad (705), the inner side middle part of the clamping plate (703) is equipped with pressure sensor (706), the front and back ends of the clamping plate (703) are fixedly connected with positioning plate (707).

2. A deformation-preventing clamping device for processing a thin-walled shell according to claim 1, characterized in that: The left and right two fixed blocks (3) are fixedly connected with the upper of bidirectional screw rod (4) between the fixed block (3) and the bidirectional screw rod (4), and the outer surface of two moving plates (6) is slidably connected with the limit rod (5).

3. The anti-deformation clamping device for thin-walled shell machining according to claim 1, characterized in that: The upper end of the pedestal (1) is fixedly connected with two support plates (8), and the upper end of the two support plates (8) is provided with a fixing assembly (9).

4. A deformation-preventing clamping device for processing thin-walled shells according to claim 3, characterized in that: The upper and lower ends of the fixed frame (901) are provided with rectangular openings (902), the outer end of the positioning plate (707) is slidably connected to the inside of the fixed frame (901), the upper and lower ends of the positioning plate (707) are fixedly connected with sliding blocks (904), the sliding blocks (904) are slidably connected to the inside of the rectangular openings (902), and the positioning plate (707) and the sliding blocks (904) are fastened to the inside of the fixed frame (901) by the fixing pieces (903).

5. The anti-deformation clamping device for thin-walled shell machining according to claim 1, characterized in that: The right ends of the two bidirectional screw rods (4) are fixedly connected with a connecting rod (10), the right end of the connecting rod (10) penetrates to the right side of the fixed block (3) and is fixedly connected with a belt wheel (11), the outer part of the two belt wheels (11) is provided with a protective cover (15), and the left end of the protective cover (15) is fixedly connected with the right end of the two fixed blocks (3) on the left and right sides.

6. A deformation-preventing clamping device for processing thin-walled shells according to claim 5, characterized in that: The two belt wheels (11) are transmissionally connected with a belt (12), the right side of the front belt wheel (11) is fixedly connected with a rotating rod (13), and the right end of the rotating rod (13) extends to the outside of the protective cover (15) and is fixedly connected with a rotating wheel (14).

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