Anti-deformation tool for thin-walled workpiece

Abstract

The utility model discloses an anti-deformation tool for a thin-wall part, which relates to the technical field of thin-wall part processing and comprises a processing table, fixed seats are fixedly arranged on the side surface of the processing table, and clamping units are fixedly arranged on the upper surface of the processing table; the clamping unit comprises a supporting frame, a pneumatic telescopic mechanism is fixedly installed on the supporting frame, and a composite damping assembly is fixedly installed at the telescopic end of the pneumatic telescopic mechanism. The clamping device has the beneficial effects that the sliding pieces and the movable seats which are arranged in an arrayed mode are matched, fitting clamping can be achieved according to the surface shape of a workpiece, the contact area is increased, clamping force is dispersed, flexible clamping is achieved, and local deformation of the workpiece caused by too large rigid clamping force is effectively avoided; vibration of different frequencies in the machining process can be effectively buffered and counteracted through the rubber damping plate, the honeycomb-shaped metal damping plate and the belleville spring set, the problems of machining surface vibration marks, size deviation and the like caused by vibration are reduced, and the machining precision and the surface quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled parts processing technology, and in particular to a tooling for preventing deformation of thin-walled parts. Background Technology

[0002] Thin-walled parts are metal materials with a wall thickness of less than 1 mm. When machining thin-walled cylindrical parts, due to their inherent disadvantages of poor rigidity and weak strength, it is difficult to control the clamping force of the fixture when clamping them. If the clamping force is too large, it is easy to cause deformation. If the clamping force is too small, displacement is likely to occur during the machining process, thus affecting the machining accuracy.

[0003] A search revealed that Chinese patent application CN222768745U discloses a tooling for preventing deformation of thin-walled parts. It mainly uses pressure blocks and mounting plates to clamp and fix the parts to prevent deformation.

[0004] Compared with existing technologies in related fields, it can be seen that when existing tooling fixtures clamp and limit the workpieces being processed, the clamping force is easily unevenly distributed due to the contact area during the processing. Vibration during processing can also easily cause processing deviations, affecting the processing quality. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for preventing deformation of thin-walled parts in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A tooling for preventing deformation of thin-walled parts includes a processing table, with fixed seats fixedly arranged on the side of the processing table and clamping units fixedly arranged on the upper surface of the processing table.

[0008] The clamping unit includes a support frame, on which a pneumatic telescopic mechanism is fixedly mounted. A composite damping component is fixedly mounted on the telescopic end of the pneumatic telescopic mechanism. A set of butterfly springs is fixedly arranged on the side of the composite damping component. A mounting base is fixedly connected to the butterfly springs. A mounting cavity is provided inside the mounting base. A sliding member is slidably arranged on the mounting base. An electromagnetic locking mechanism is fixedly mounted inside the mounting cavity. The electromagnetic locking mechanism is magnetically connected to the sliding member. A movable seat is rotatably mounted on the end of the sliding member. A return spring is sleeved on the sliding member. The end of the sliding member limits the movable seat. The two ends of the return spring are respectively connected to the mounting base and the movable seat.

[0009] Furthermore, the slider is square.

[0010] Furthermore, a flexible pad is fixedly installed on the movable seat.

[0011] Furthermore, a pressure sensor is fixedly installed at the connection between the movable seat and the flexible pad.

[0012] Furthermore, the composite damping assembly includes a rubber damping plate and a honeycomb metal damping plate. The rubber damping plate is fixedly installed on the telescopic end of the pneumatic telescopic mechanism, and the honeycomb metal damping plate is fixedly installed on the rubber damping plate. The honeycomb metal damping plate is fixedly connected to the disc spring assembly.

[0013] Furthermore, a guide rod is fixedly installed on the side of the rubber damping plate, and the guide rod is slidably connected to the support frame.

[0014] Furthermore, a shock-absorbing pad is fixedly installed on the lower surface of the processing table.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. By using rubber damping plates, honeycomb metal damping plates, and butterfly spring groups, vibrations of different frequencies during processing can be effectively buffered and offset, reducing problems such as surface texture and dimensional deviations caused by vibration, thereby improving processing accuracy and surface quality.

[0017] 2. By arranging the sliding parts in conjunction with the movable seat, the workpiece can be clamped according to its surface shape, increasing the contact area and dispersing the clamping force to achieve flexible clamping. This effectively avoids local deformation of the workpiece caused by excessive rigid clamping force, ensuring accurate workpiece positioning and stable clamping, and facilitating better workpiece processing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the first isometric structure of the anti-deformation tooling for thin-walled parts described in this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of a thin-walled anti-deformation tooling according to the present invention;

[0021] Figure 3 This utility model describes a tooling for preventing deformation of thin-walled parts. Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a partial cross-sectional structural diagram of a thin-walled anti-deformation tooling according to the present invention;

[0023] Figure 5This utility model describes a tooling for preventing deformation of thin-walled parts. Figure 4 Enlarged structural diagram at point B;

[0024] Figure 6 This is a schematic diagram of the second isometric structure of the anti-deformation tooling for thin-walled parts described in this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Processing table; 2. Fixed base; 301. Support frame; 302. Pneumatic telescopic mechanism; 303. Composite damping assembly; 3031. Rubber damping plate; 3032. Honeycomb metal damping plate; 304. Butterfly spring assembly; 305. Mounting base; 306. Electromagnetic locking mechanism; 307. Sliding component; 308. Return spring; 309. Movable base; 310. Pressure sensor; 311. Flexible pad; 312. Mounting cavity; 4. Guide rod; 5. Vibration damping pad. Detailed Implementation

[0027] like Figures 1-6 As shown, a tooling for preventing deformation of thin-walled parts includes a processing table 1, with fixed seats 2 fixedly arranged on the side of the processing table 1 and clamping units fixedly arranged on the upper surface of the processing table 1. The processing table 1 is placed on a processing device such as a machine tool, and the fixed seats 2 are fixedly installed on the processing device such as the machine tool by bolts to complete the fixation of the processing table 1. The workpiece to be processed is placed on the processing table 1, and the workpiece is clamped and fixed by the clamping units, which effectively prevents the workpiece from deforming during the processing.

[0028] like Figures 1-6As shown, the clamping unit includes a support frame 301, on which a pneumatic telescopic mechanism 302 is fixedly mounted. A composite damping assembly 303 is fixedly mounted on the telescopic end of the pneumatic telescopic mechanism 302. A butterfly spring assembly 304 is fixedly arranged on the side of the composite damping assembly 303. A mounting base 305 is fixedly connected to the butterfly spring assembly 304. A mounting cavity 312 is provided inside the mounting base 305. A sliding member 307 is slidably arranged on the mounting base 305. An electromagnetic locking mechanism 306 is fixedly mounted inside the mounting cavity 312. The electromagnetic locking mechanism 306 is magnetically connected to the sliding member 307. A movable seat 309 is rotatably mounted on the end of the sliding member 307. A sleeve is fitted on the sliding member 307. A return spring 308 is connected to the sliding member 307, which limits the movement of the movable seat 309. The two ends of the return spring 308 are connected to the mounting base 305 and the movable seat 309, respectively. When the workpiece is not clamped, the electromagnetic locking mechanism 306 does not clamp or fix the sliding member 307. Under the elastic force of the return spring 308, the return spring 308 drives the sliding member 307 through the movable seat 309, causing the sliding member 307 to extend. After the workpiece is placed on the processing table 1, the composite damping assembly 303 is moved by the pneumatic telescopic mechanism 302, enabling clamping of workpieces of different sizes. The composite damping assembly 303 is driven by the disc spring assembly 304. The mounting base 305 moves, and the mounting base 305 drives the movable base 309 to move via the sliding member 307, so that the movable base 309 moves to the position of the workpiece and fits against the outer surface of the workpiece. Due to the arrangement of the sliding members 307 and their rotatable connection to the movable base 309, the movable base 309 on different sliding members 307 can fit and clamp according to the shape of the workpiece surface, increasing the contact area during clamping, dispersing the clamping force, protecting the workpiece, reducing deformation during processing, and ensuring the quality of workpiece processing. When the movable base 309 fits against different positions on the workpiece, the movable base 309... The sliding member 307 moves in the opposite direction and compresses the return spring 308. The return spring 308 and the butterfly spring assembly 304 enable the movable seat 309 to make flexible contact with the workpiece, avoiding damage to the workpiece surface caused by hard contact. After the movable seat 309 is attached to the workpiece, the sliding member 307 is locked and fixed by the electromagnetic locking mechanism 306. During clamping, the butterfly spring assembly 304 enables the movable seat 309 to provide elastic support and clamping for the workpiece, achieving flexible clamping of the workpiece. This avoids local deformation of the workpiece due to excessive rigid clamping force, while dispersing the clamping force to make the workpiece more evenly stressed, reducing the risk of deformation during workpiece processing and ensuring the processing quality of the workpiece.

[0029] like Figure 3As shown, the slider 307 is square. The square design allows the slider 307 to slide better and prevents it from rotating, thereby better clamping and limiting the workpiece and avoiding deviations when clamping the workpiece.

[0030] like Figures 2-5 As shown, a flexible pad 311 is fixedly installed on the movable seat 309. The movable seat 309 clamps and limits the workpiece through the flexible pad 311. The flexible pad 311 can better fit the workpiece, increase the contact area, ensure better clamping and limiting of the workpiece, and reduce deformation. At the same time, the flexible pad 311 protects the surface of the workpiece, avoiding damage to the surface of the workpiece during clamping, thus protecting the workpiece.

[0031] like Figure 5 As shown, a pressure sensor 310 is fixedly installed at the connection between the movable seat 309 and the flexible pad 311. When the workpiece is clamped and limited, the movable seat 309 drives the pressure sensor 310 to adhere to the workpiece through the flexible pad 311. The pressure sensor 310 detects the clamping force to ensure that a suitable clamping force is applied to the workpiece during processing. This ensures the stability of the thin-walled part during clamping and prevents deformation of the workpiece caused by excessive clamping force, thus ensuring processing quality.

[0032] like Figure 1 , Figure 2 , Figure 4 As shown, the composite damping assembly 303 includes a rubber damping plate 3031 and a honeycomb metal damping plate 3032. The rubber damping plate 3031 is fixedly installed on the telescopic end of the pneumatic telescopic mechanism 302. The honeycomb metal damping plate 3032 is fixedly installed on the rubber damping plate 3031. The honeycomb metal damping plate 3032 is fixedly connected to the butterfly spring assembly 304. When the thin-walled workpiece vibrates during processing, the vibration is transmitted to the composite damping assembly 303. The rubber damping plate 3031 has good elasticity and energy dissipation characteristics and can absorb high-frequency vibration. At the same time, the honeycomb metal damping plate 3032 can generate frictional energy dissipation through its internal honeycomb structure, effectively attenuating low-frequency vibration. The rubber damping plate 3031 and the honeycomb metal damping plate 3032 buffer and cancel the vibration during processing, effectively reducing the impact of different frequency vibrations on the processing quality of the thin-walled workpiece during processing, reducing problems such as surface texture and dimensional deviation caused by vibration, and improving processing accuracy and surface quality.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 6As shown, a guide rod 4 is fixedly installed on the side of the rubber damping plate 3031. The guide rod 4 is slidably connected to the support frame 301. When the workpiece is clamped and fixed, the rubber damping plate 3031 is moved by the pneumatic telescopic mechanism 302. The rubber damping plate 3031 drives the guide rod 4 to move. The guide rod 4 slides on the support frame 301. The guide rod 4 guides and limits the rubber damping plate 3031, ensuring that the rubber damping plate 3031 and other components move smoothly in a straight line, avoiding deviation when clamping the workpiece, and improving the accuracy and reliability of the clamping action.

[0034] like Figure 1 , Figure 6 As shown, a vibration damping pad 5 is fixedly installed on the lower surface of the processing table 1. During the processing and production process, the vibration generated by the machine tool and other equipment is transmitted to the processing table 1 through the vibration damping pad 5. The vibration damping pad 5 absorbs and buffers the energy of the vibration through its own elastic deformation, effectively reducing the impact of the vibration under the processing table 1 on the processing of thin-walled parts, thereby improving the stability of the processing process and ensuring the processing accuracy of thin-walled parts.

[0035] Working principle: such as Figure 1 , Figure 6 As shown, the processing table 1 is placed on the processing device such as a machine tool by means of shock-absorbing pad 5, and the fixing seat 2 is fixedly installed on the processing device such as a machine tool by means of bolts to complete the fixing of the processing table 1, and the workpiece to be processed is placed on the processing table 1.

[0036] like Figures 1-6 As shown, the composite damping assembly 303 is moved by the pneumatic telescopic mechanism 302, and the composite damping assembly 303 is guided by the guide rod 4. The composite damping assembly 303 moves the mounting base 305 by the butterfly spring group 304. The mounting base 305 moves the movable base 309 by the sliding member 307, so that the movable base 309 moves the flexible pad 311 to fit the workpiece according to the shape of the workpiece. The force during clamping is detected by the pressure sensor 310. The movable base 309 moves the sliding member 307 in the opposite direction and compresses the return spring 308. The sliding member 307 is locked and fixed by the electromagnetic locking mechanism 306.

[0037] like Figures 1-6 As shown, during the workpiece processing, the movable seat 309 is elastically supported by the butterfly spring assembly 304, so that the movable seat 309 fits against the workpiece. At the same time, the vibration during the processing is buffered and offset by the rubber damping plate 3031 and the honeycomb metal damping plate 3032. The shock-absorbing pad 5 absorbs and buffers the energy of vibration through its own elastic deformation, effectively reducing the impact of different frequency vibrations on the processing quality of thin-walled parts during processing.

[0038] 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 illustrative of the 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.

Claims

1. A thin-walled part anti-deformation tooling, characterized in that, Includes a processing table (1), with fixed seats (2) fixedly arranged on the side of the processing table (1), and clamping units fixedly arranged on the upper surface of the processing table (1); The clamping unit includes a support frame (301), on which a pneumatic telescopic mechanism (302) is fixedly mounted. A composite damping assembly (303) is fixedly mounted on the telescopic end of the pneumatic telescopic mechanism (302). A butterfly spring assembly (304) is fixedly arranged on the side of the composite damping assembly (303). A mounting base (305) is fixedly connected to the butterfly spring assembly (304). A mounting cavity (312) is provided inside the mounting base (305). Sliding elements are slidably arranged on the mounting base (305). (307) An electromagnetic locking mechanism (306) is fixedly installed in the mounting cavity (312). The electromagnetic locking mechanism (306) is magnetically connected to the sliding member (307). A movable seat (309) is rotatably installed at the end of the sliding member (307). A return spring (308) is sleeved on the sliding member (307). The end of the sliding member (307) limits the movable seat (309). The two ends of the return spring (308) are respectively connected to the mounting base (305) and the movable seat (309).

2. The anti-deformation tooling for thin-walled parts of claim 1, wherein: The slider (307) is square.

3. The anti-deformation tooling for thin-walled parts of claim 1, wherein: A flexible pad (311) is fixedly installed on the movable seat (309).

4. The anti-deformation tooling for thin-walled parts of claim 3, wherein: A pressure sensor (310) is fixedly installed at the connection between the movable seat (309) and the flexible pad (311).

5. The anti-deformation tooling for thin-walled parts of claim 1, wherein: The composite damping assembly (303) includes a rubber damping plate (3031) and a honeycomb metal damping plate (3032). The rubber damping plate (3031) is fixedly installed on the telescopic end of the pneumatic telescopic mechanism (302). The honeycomb metal damping plate (3032) is fixedly installed on the rubber damping plate (3031). The honeycomb metal damping plate (3032) is fixedly connected to the butterfly spring assembly (304).

6. The anti-deformation tooling for thin-walled parts of claim 5, wherein: A guide rod (4) is fixedly installed on the side of the rubber damping plate (3031), and the guide rod (4) is slidably connected to the support frame (301).

7. The anti-deformation tooling for thin-walled parts of claim 1, wherein: A shock-absorbing pad (5) is fixedly installed on the lower surface of the processing table (1).

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