Adaptive Adjustment Thin-Walled Irregular Part Fixture
By using a combination of hydraulic cylinders and pressure sensors in a thin-walled irregular part fixture, adaptive adjustment and real-time monitoring are achieved, solving the problem that existing fixtures cannot adaptively adjust, ensuring uniform clamping force and workpiece protection, and improving machining stability and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU HONGLIN DEJIA PRECISION MASCH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-26
AI Technical Summary
Existing fixtures for thin-walled irregular parts cannot be adaptively adjusted, making it difficult to meet the clamping requirements of different specifications. Furthermore, the lack of real-time monitoring and control of clamping force leads to workpiece deformation or damage.
Two mounting frames are symmetrically slidably installed on the top of the mounting plate, and six hydraulic cylinders are set inside the frames. The contact module and pressure sensor at the end of the piston rod monitor the clamping force in real time. Through the extension and retraction of the hydraulic cylinders and the adaptive adjustment of the guide rod, multi-directional uniform clamping is achieved. Combined with the cushioning of the sponge pad and soft silicone layer, clamping stability and accuracy are ensured.
It enables the application of multi-directional and uniform clamping force to thin-walled irregular parts, avoiding deformation or damage, improving clamping stability and accuracy, adapting to workpieces of different shapes and sizes, and enhancing the versatility and reliability of the fixture.
Smart Images
Figure CN224274790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of irregular part processing equipment, specifically to an adaptively adjustable thin-walled irregular part fixture. Background Technology
[0002] In the field of machining, thin-walled irregular-shaped parts are widely used in aerospace, automotive manufacturing, medical devices, and precision instruments due to their advantages such as light weight and compact structure. For example, aircraft engine blades, lightweight aluminum alloy automotive components, and complex-shaped medical device parts are all examples of thin-walled irregular-shaped parts.
[0003] Existing technology includes a patent with patent application number CN202320024585.5, which discloses a processing device for thin-walled irregular parts, relating to the technical field of irregular part processing devices. This utility model includes a base plate, with a fixing groove fixedly installed on the upper surface of the base plate. A first cylinder is fixedly installed in the fixing groove, and a push plate is fixedly installed at the output end of the first cylinder. The push plate and the first cylinder cooperate with each other. A second fixing block is fixedly installed on one side surface of the fixing groove, and a second support rod is rotatably installed in the second fixing block. A side plate is fixedly installed at one end of the upper surface of the base plate, and a cross plate is slidably installed between the two side plates. Through the cooperation of the first cylinder and the push plate, the push plate extends and retracts with the push rod, thereby causing the fixing plate to... The first and second support rods clamp the workpiece, preventing it from loosening during processing. The telescopic rod and spring reduce pressure on the workpiece during clamping, preventing damage. However, while this solution provides clamping force, it cannot adaptively adjust to the workpiece's shape and size, failing to meet the clamping requirements of thin-walled irregular parts of different specifications. Furthermore, some adjustable fixtures are complex to operate, making it difficult to quickly and accurately adjust to the appropriate clamping position. They also lack real-time monitoring and control of the clamping force, making it difficult to ensure clamping effectiveness while preventing workpiece deformation.
[0004] In view of this, we propose an adaptively adjustable fixture for thin-walled irregular parts. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an adaptively adjustable clamp for thin-walled irregular parts.
[0006] The technical solution of this utility model is:
[0007] An adaptive thin-walled irregular-shaped part clamping fixture includes a mounting plate. Two mounting frames are symmetrically slidably mounted on the top of the mounting plate. At least six first hydraulic cylinders are installed inside the mounting frames. The piston rods of the first hydraulic cylinders all point towards the center of the mounting plate. A contact module is fixedly mounted at the end of the piston rod of each hydraulic cylinder. The contact module includes a mounting block fixedly connected to the piston rod of the hydraulic cylinder. A pressure sensor is mounted on the outer wall of the mounting block. A support leg is fixedly mounted at each of the four corners of the bottom of the mounting plate. By symmetrically sliding two mounting frames on the top of the mounting plate and setting at least six first hydraulic cylinders pointing towards the center of the mounting plate within the mounting frames, multi-directional and uniform clamping force is applied to the thin-walled irregular-shaped part. The contact module and pressure sensor at the end of the piston rod of each hydraulic cylinder can monitor the clamping force in real time, avoiding deformation or damage to the thin-walled irregular-shaped part due to excessive clamping force. Simultaneously, the extension and retraction of the hydraulic cylinders can be flexibly adjusted according to the pressure data to adapt to thin-walled irregular-shaped parts of different shapes and sizes, ensuring clamping stability and accuracy. The four support legs at the bottom provide stable support for the entire clamp, ensuring that it will not wobble due to uneven force during clamping.
[0008] As a preferred technical solution, the mounting block is provided with an outer plate on its outer side, and a guide rod is installed at each of the four corners of the outer plate near the mounting block. The guide rods are plugged into and connected to the mounting block. This design allows the outer plate to adaptively adjust according to the surface shape of the workpiece when clamping thin-walled irregular parts, ensuring a good fit between the contact module and the workpiece surface, further improving the stability and reliability of clamping. At the same time, the guide rods play a guiding and limiting role, preventing the outer plate from shifting during sliding.
[0009] As a preferred technical solution, a sponge pad is fixedly installed on the outer wall of the outer panel, and a soft silicone layer is provided on the outer side of the sponge pad. This can play a role in buffering and shock absorption during the clamping process. When the first hydraulic cylinder pushes the contact module to clamp the thin-walled irregular part, the sponge pad and the soft silicone layer can effectively disperse the clamping force and avoid damage to the thin-walled part caused by local stress concentration.
[0010] As a preferred technical solution, a driving block is installed at the center of the bottom of the mounting block, and two mounting slots are symmetrically formed on the top of the mounting plate. The two driving blocks are slidably connected to the two mounting slots respectively. A drive motor drives a lead screw to rotate, which in turn drives the driving blocks to slide within the mounting slots, thereby achieving horizontal position adjustment of the contact module. This design allows the fixture to adapt to thin-walled irregular parts of different sizes and shapes. By adjusting the position of the contact module, workpieces of different specifications can be accurately positioned and clamped, improving the versatility and applicability of the fixture.
[0011] As a preferred technical solution, a lead screw is rotatably installed in each mounting slot, the drive block is threadedly connected to the lead screw, and a drive motor with its output shaft coaxially fixed to the lead screw is mounted on the outer wall of the mounting plate. This provides precise and stable power transmission for the position adjustment of the contact module.
[0012] As a preferred technical solution, the top of the drive block has two symmetrically integrally formed extension plates, each of which is equipped with a second hydraulic cylinder. The bottom of the mounting frame is fixedly connected to the piston rods of the two second hydraulic cylinders. When clamping thin-walled irregular parts of different heights, the height of the mounting frame and the internal first hydraulic cylinder can be adjusted by the extension and retraction of the second hydraulic cylinders, so that the contact module and the workpiece surface are in a suitable contact position.
[0013] As a preferred technical solution, the mounting plate has two symmetrically formed movable slots on its top, and the second hydraulic cylinder is located within one of these slots. The movable slots provide the hydraulic cylinder with space for left and right movement.
[0014] As a preferred technical solution, the guide rod remains attached to the mounting block during the movement of the outer panel, ensuring the stability and reliability of the connection between the outer panel and the mounting block.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention achieves multi-directional and uniform clamping force on thin-walled irregular parts by symmetrically sliding two mounting frames on the top of the mounting plate and setting at least six first hydraulic cylinders pointing towards the center of the mounting plate within the mounting frames. The contact module and pressure sensor at the piston rod end of each hydraulic cylinder can monitor the clamping force in real time, preventing deformation or damage to the thin-walled irregular parts due to excessive clamping force. Simultaneously, the extension and retraction of the hydraulic cylinders can be flexibly adjusted based on pressure data to accommodate thin-walled irregular parts of different shapes and sizes, ensuring clamping stability and accuracy. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the mounting frame, the first hydraulic cylinder, and the contact module in this utility model;
[0019] Figure 3 This is a schematic diagram of the contact module in this utility model;
[0020] Figure 4 This is a schematic diagram of the drive block in this utility model;
[0021] The meanings of the labels in the diagram are as follows:
[0022] 1. Mounting plate; 10. Movable slot; 11. Mounting slot; 12. Drive motor; 13. Lead screw; 2. Mounting frame; 3. Contact module; 30. Mounting block; 31. Pressure sensor; 32. Outer plate; 33. Sponge pad; 34. Soft silicone layer; 35. Guide rod; 4. First hydraulic cylinder; 5. Outrigger; 6. Drive block; 60. Extension plate; 61. Second hydraulic cylinder. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please refer to the accompanying drawings. This utility model provides a technical solution:
[0025] like Figure 1 and Figure 2 As shown, the adaptive thin-walled irregular part clamping fixture includes a mounting plate 1. Two mounting frames 2 are symmetrically slidably mounted on the top of the mounting plate 1. At least six first hydraulic cylinders 4 are installed inside the mounting frames 2. The piston rods of the first hydraulic cylinders 4 all point towards the center of the mounting plate 1. A contact module 3 is fixedly mounted at the end of the piston rod of each hydraulic cylinder. The contact module 3 includes a mounting block 30 fixedly connected to the piston rod of the hydraulic cylinder. A pressure sensor 31 is mounted on the outer wall of the mounting block 30. A support leg 5 is fixedly mounted at each of the four corners of the bottom of the mounting plate 1. By symmetrically sliding two mounting frames 2 on the top of the mounting plate 1 and setting at least six first hydraulic cylinders 4 pointing towards the center of the mounting plate 1 within the mounting frames 2, multi-directional and uniform clamping force is applied to the thin-walled irregular part. The contact module 3 and pressure sensor 31 at the end of the piston rod of each hydraulic cylinder can monitor the clamping force in real time, avoiding deformation or damage to the thin-walled irregular part due to excessive clamping force. Simultaneously, the extension and retraction of the hydraulic cylinders can be flexibly adjusted according to the pressure data to adapt to thin-walled irregular parts of different shapes and sizes, ensuring clamping stability and accuracy. The four support legs at the bottom provide stable support for the entire clamp, ensuring that it will not shake due to uneven force during clamping.
[0026] like Figure 3As shown in the preferred embodiment, the mounting block 30 has an outer plate 32 on its outer side. A guide rod 35 is installed at each of the four corners of the outer plate 32 near the mounting block 30, and the guide rods 35 are plugged into the mounting block 30. This design allows the outer plate 32 to adaptively adjust according to the workpiece surface shape when clamping thin-walled irregular parts, ensuring good contact between the contact module 3 and the workpiece surface, further improving the stability and reliability of the clamping. Simultaneously, the guide rods 35 serve as guides and limiters, preventing the outer plate 32 from shifting during sliding.
[0027] like Figure 3 As shown, in a preferred embodiment, a sponge pad 33 is fixedly installed on the outer wall of the outer plate 32, and a soft silicone layer 34 is provided on the outer side of the sponge pad 33. This can play a role in buffering and shock absorption during the clamping process. When the first hydraulic cylinder 4 pushes the contact module 3 to clamp the thin-walled irregular part, the sponge pad 33 and the soft silicone layer 34 can effectively disperse the clamping force and avoid damage to the thin-walled part caused by local stress concentration.
[0028] like Figure 1 As shown in the preferred embodiment, a drive block 6 is installed at the bottom center of the mounting block 30, and two mounting slots 11 are symmetrically formed on the top of the mounting plate 1. The two drive blocks 6 are slidably connected to the two mounting slots 11 respectively. The drive motor 12 drives the lead screw 13 to rotate, thereby driving the drive blocks 6 to slide within the mounting slots 11, realizing the horizontal position adjustment of the contact module 3. This design allows the fixture to adapt to thin-walled irregular parts of different sizes and shapes. By adjusting the position of the contact module 3, workpieces of different specifications can be accurately positioned and clamped, improving the versatility and applicability of the fixture.
[0029] like Figure 1 As shown, in a preferred embodiment, a lead screw 13 is rotatably installed in each mounting slot 11, and the drive block 6 is threadedly connected to the lead screw 13. A drive motor 12 with its output shaft coaxially fixed to the lead screw 13 is installed on the outer wall of the mounting plate 1. This provides precise and stable power transmission for the position adjustment of the contact module 3.
[0030] like Figure 4 As shown, in a preferred embodiment, the top of the drive block 6 has two symmetrically integrally formed extension plates 60, each extension plate 60 is equipped with a second hydraulic cylinder 61, and the bottom of the mounting frame 2 is fixedly connected to the piston rods of the two second hydraulic cylinders 61. When clamping thin-walled irregular parts of different heights, the height of the mounting frame 2 and the internal first hydraulic cylinder 4 can be adjusted by the extension and retraction of the second hydraulic cylinders 61, so that the contact module 3 is in a suitable contact position with the workpiece surface.
[0031] like Figure 1As shown, in a preferred embodiment, the mounting plate 1 has two symmetrically arranged movable slots 10 on its top, and the second hydraulic cylinder 61 is located within the movable slots 10. The movable slots 10 provide the hydraulic cylinder with space for left and right movement.
[0032] In this preferred embodiment, the guide rod 35 remains attached to the mounting block 30 during movement of the outer plate 32. This ensures the stability and reliability of the connection between the outer plate 32 and the mounting block 30.
[0033] In use, the adaptive adjustable thin-walled irregular part clamp of this utility model first places the thin-walled irregular part on the mounting plate 1. Then, the drive motor 12 is started, and the output shaft of the drive motor 12 drives the lead screw 13 to rotate. Since the drive block 6 is threadedly connected to the lead screw 13 and the drive block 6 is slidably connected to the mounting groove 11 on the top of the mounting plate 1, the drive block 6 will slide in the mounting groove 11 under the rotation of the lead screw 13, thereby driving the mounting block 30 and the contact module 3 to move in the horizontal direction. By adjusting their positions, the contact module 3 is initially aligned with the part of the thin-walled irregular part that needs to be clamped, so as to adapt to the positioning requirements of thin-walled irregular parts of different sizes and shapes.
[0034] Next, for thin-walled irregular parts of different heights, the height of the mounting frame 2 is adjusted by controlling the extension and retraction of the second hydraulic cylinder 61. The second hydraulic cylinder 61 is mounted on the extension plate 60 on the top of the drive block 6. The bottom of the mounting frame 2 is fixedly connected to the piston rod of the second hydraulic cylinder 61. When the second hydraulic cylinder 61 extends or retracts, it drives the mounting frame 2 to rise and fall vertically, so that the first hydraulic cylinder 4 and the contact module 3 inside the mounting frame 2 are at a suitable contact height with the surface of the thin-walled irregular part, ensuring that the contact module 3 can effectively contact the workpiece. During this process, the movable groove 10 on the top of the mounting plate 1 provides the second hydraulic cylinder 61 with a space for movement, ensuring that its extension and retraction process is smooth.
[0035] After initial adjustments to position and height, the first hydraulic cylinder 4 is activated, extending its piston rod and pushing the contact module 3 towards the thin-walled irregular part. Since at least six first hydraulic cylinders 4 are installed within the mounting frame 2, and their piston rods all point towards the center of the mounting plate 1, clamping force can be applied to the thin-walled irregular part from multiple directions, achieving uniform clamping. When the contact module 3 contacts the thin-walled irregular part, the outer plate 32 within the contact module 3, guided and limited by the guide rod 35, can adaptively adjust according to the surface shape of the thin-walled irregular part, ensuring good contact between the outer plate 32 and the workpiece surface, further enhancing the clamping effect.
[0036] Meanwhile, the pressure sensor 31 on the outer wall of the mounting block 30 monitors the clamping force applied to the thin-walled irregular part by the contact module 3 in real time and feeds back the data. If the clamping force is too large, the system can control the first hydraulic cylinder 4 to retract, reduce the clamping force, and prevent the thin-walled irregular part from deforming or being damaged due to excessive force; if the clamping force is insufficient, the system controls the first hydraulic cylinder 4 to continue to extend, increase the clamping force, and ensure the stability and accuracy of the clamping.
[0037] In addition, the sponge pad 33 and soft silicone layer 34 on the outer wall of the outer plate 32 play a buffering and shock-absorbing role during the clamping process, effectively dispersing the clamping force, preventing local stress concentration from causing damage to the thin-walled parts, and further protecting the thin-walled irregular parts.
[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 preferred examples and are not intended to limit the 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. An adaptively adjustable fixture for thin-walled irregular-shaped parts, characterized in that: The mounting plate (1) includes two mounting frames (2) symmetrically slidably mounted on the top of the mounting plate (1). At least six first hydraulic cylinders (4) are installed inside the mounting frames (2). The piston rods of the first hydraulic cylinders (4) all point to the middle side of the mounting plate (1). A contact module (3) is fixedly installed at the end of the piston rod of each hydraulic cylinder. The contact module (3) includes a mounting block (30) fixedly connected to the piston rod of the hydraulic cylinder. A pressure sensor (31) is installed on the outer wall of the mounting block (30). A support leg (5) is fixedly installed at each of the four corners of the bottom of the mounting plate (1).
2. The adaptively adjustable thin-walled irregular part fixture as described in claim 1, characterized in that: An outer plate (32) is provided on the outside of the mounting block (30). A guide rod (35) is installed at each of the four corners of the outer plate (32) near the mounting block (30). The guide rod (35) is inserted into the mounting block (30).
3. The adaptively adjustable thin-walled irregular part fixture as described in claim 2, characterized in that: A sponge pad (33) is fixedly installed on the outer wall of the outer panel (32), and a soft silicone layer (34) is provided on the outer side of the sponge pad (33).
4. The adaptively adjustable thin-walled irregular part fixture as described in claim 3, characterized in that: A drive block (6) is installed at the bottom center of the mounting block (30), and two mounting slots (11) are symmetrically opened on the top of the mounting plate (1). The two drive blocks (6) are slidably connected to the two mounting slots (11) respectively.
5. The adaptively adjustable thin-walled irregular part fixture as described in claim 4, characterized in that: Each of the mounting slots (11) is rotatably mounted with a lead screw (13), the drive block (6) is threadedly connected to the lead screw (13), and a drive motor (12) with its output shaft coaxially fixed to the lead screw (13) is mounted on the outer wall of the mounting plate (1).
6. The adaptively adjustable thin-walled irregular part fixture as described in claim 5, characterized in that: The top of the drive block (6) has two symmetrically integrally formed extension plates (60), and each extension plate (60) is equipped with a second hydraulic cylinder (61). The bottom of the mounting frame (2) is fixedly connected to the piston rods of the two second hydraulic cylinders (61).
7. The adaptively adjustable thin-walled irregular part fixture as described in claim 6, characterized in that: The mounting plate (1) has two symmetrically arranged movable slots (10) on its top, and the second hydraulic cylinder (61) is located in the movable slots (10).
8. The adaptively adjustable thin-walled irregular part fixture as described in claim 7, characterized in that: When the outer plate (32) moves, the guide rod (35) remains attached to the mounting block (30).