Clamping device for blade disc machining

Abstract

The utility model relates to the technical field of blade disc machining, and discloses a clamping device for blade disc machining, which comprises a base, supporting legs are fixedly connected to the bottom of the base in a front-back and left-right symmetrical mode, a height adjusting mechanism is arranged at the bottom of the base, a clamping mechanism is arranged at the top of the height adjusting mechanism, and the clamping mechanism comprises a fixing frame. The fixing frame is arranged at the top of the height adjusting mechanism, and guide rods are fixedly connected to the left and right sides of the inner wall of the fixing frame in an up-down and front-back symmetrical mode. The clamping mechanism utilizes a second hydraulic cylinder to push a sliding block on the right side to move, due to the structure that a first rack, a second rack and a gear are meshed with each other, the sliding blocks on the left side and the right side can synchronously and reversely move, and the blade disc is rapidly and stably clamped. The friction force between the clamping plates and the blade disc is increased through the arc-shaped rubber pads, displacement of the blade disc in the machining process can be prevented, damage to the surface of the blade disc can be avoided, and the machining precision and the completeness of the blade disc are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of bladed disk processing technology, specifically to a clamping device for bladed disk processing. Background Technology

[0002] Bladed disks, as a key component, are widely used in high-end equipment such as aero engines and gas turbines. Bladed disks typically have complex curved surface structures and high precision requirements, and their machining quality directly affects the performance and reliability of the entire equipment. Therefore, the clamping process is crucial in the machining of bladed disks. It not only needs to ensure the stable positioning of the bladed disk during machining but also needs to minimize deformation and damage caused by clamping to guarantee machining accuracy and surface quality.

[0003] Existing clamping equipment mostly adopts a single fixed structure, which is difficult to adapt to the size differences and complex contours of different models of bladed disks. Frequent tooling changes not only increase production costs but also lead to low production efficiency. Some clamping devices rely on single-sided clamping or simple mechanical structures, which can easily cause uneven force on the bladed disk, resulting in deformation during processing and seriously affecting the accuracy of the blade profile and assembly quality. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device for processing impeller disks, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clamping device for processing impeller disks, comprising a base, wherein support legs are symmetrically and fixedly connected to the bottom of the base in the front, back, left and right directions, a height adjustment mechanism is provided at the bottom of the base, and a clamping mechanism is provided at the top of the height adjustment mechanism;

[0006] The clamping mechanism includes a fixed frame, which is disposed on top of the height adjustment mechanism. Guide rods are symmetrically fixedly connected to the left and right sides, top and bottom, front and back of the inner wall of the fixed frame. Sliders are symmetrically slidably connected to the surfaces of the guide rods. Fixed plates are fixedly connected to the tops of the two sliders. Arc-shaped clamping plates are fixedly connected to the tops of the fixed plates. Arc-shaped rubber pads are fixedly connected to the outer walls of the two arc-shaped clamping plates. A second hydraulic cylinder is fixedly connected to the right side of the fixed frame. Rotating shafts are symmetrically rotatably connected to the front and back sides of the inner wall of the fixed frame. Gears are fixedly connected to the surfaces of the rotating shafts. A first fixing block is fixedly connected to the front and back sides of the slider near the right side of the inner wall of the fixed frame. A first rack is fixedly connected to the other end of the first fixing block. A second fixing block is fixedly connected to the front and back sides of the slider near the left side of the inner wall of the fixed frame. A second rack is fixedly connected to the other end of the second fixing block.

[0007] Preferably, the output end of the second hydraulic cylinder is fixedly connected to the right side of the slider near the right side of the inner wall of the fixed frame.

[0008] Preferably, both the first rack and the second rack mesh with a gear, with the first rack located below the second rack.

[0009] Preferably, the fixing frame has slots on both the left and right sides, and the first and second racks pass through and slide left and right in the slots.

[0010] Preferably, the height adjustment mechanism includes a fixed base, which is fixedly connected to the bottom of the base. A first hydraulic cylinder is fixedly connected to the bottom of the fixed base. A lifting plate is fixedly connected to the output end of the first hydraulic cylinder. Slide rods are symmetrically fixedly connected to the top of the lifting plate, and a rectangular ring is fixedly connected to the top of the slide rods.

[0011] Preferably, the top of the base has a hole that matches the slide rod, and the slide rod is connected to the hole by sliding up and down through the surface of the slide rod.

[0012] Preferably, the top of the rectangular ring is fixedly connected to the bottom of the fixed frame.

[0013] Compared with the prior art, the present invention provides a clamping device for processing impeller disks, which has the following beneficial effects:

[0014] The clamping device for machining this impeller uses a second hydraulic cylinder to move the right-side slider. Due to the meshing structure of the first and second racks and gears, the left and right sliders can move synchronously in opposite directions, quickly and stably clamping the impeller. The arc-shaped rubber pad increases the friction between the clamping plate and the impeller, preventing displacement during machining and avoiding damage to the impeller surface, thus ensuring machining accuracy and the integrity of the impeller.

[0015] The clamping device for this impeller machining system features a first hydraulic cylinder in its height adjustment mechanism that drives a lifting plate to move up and down, causing a sliding rod to slide within a hole in the base. This allows for precise adjustment of the height of the fixed frame and the impeller above it. This design adapts to the height requirements of different processing equipment and allows operators to adjust the impeller height according to their processing techniques and operating habits, effectively improving the device's versatility and ease of operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the height adjustment mechanism of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 4 This is a front sectional perspective view of the fixing frame of this utility model.

[0021] In the diagram: 1. Base; 2. Support leg; 3. Height adjustment mechanism; 31. Fixed seat; 32. First hydraulic cylinder; 33. Lifting plate; 34. Slide rod; 35. Rectangular ring; 4. Clamping mechanism; 41. Fixed frame; 42. Guide rod; 43. Slider; 44. Fixed plate; 45. Arc-shaped clamping plate; 46. Arc-shaped rubber pad; 47. Second hydraulic cylinder; 48. Rotating shaft; 49. Gear; 411. First rack; 412. Second rack; 413. First fixing block; 414. Second fixing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] This utility model provides the following technical solution: Example

[0025] Please see Figure 1-4 This utility model provides a technical solution: a clamping device for processing impellers, including a base 1, with support legs 2 symmetrically fixedly connected to the bottom of the base 1 in the front, back, left and right directions, a height adjustment mechanism 3 is provided at the bottom of the base 1, and a clamping mechanism 4 is provided at the top of the height adjustment mechanism 3.

[0026] The clamping mechanism 4 includes a fixed frame 41, which is located on top of the height adjustment mechanism 3. Guide rods 42 are symmetrically fixedly connected to the left and right sides, top and bottom, front and back of the inner wall of the fixed frame 41. Slider 43 is symmetrically slidably connected to the surface of the guide rods 42. Fixed plates 44 are fixedly connected to the top of the two sliders 43. Arc-shaped clamping plates 45 are fixedly connected to the top of the fixed plates 44. Arc-shaped rubber pads 46 are fixedly connected to the outer walls of the two arc-shaped clamping plates 45. A second hydraulic cylinder 47 is fixedly connected to the right side of the fixed frame 41. Rotating shafts 48 are symmetrically rotatably connected to the front and back sides of the inner wall of the fixed frame 41. Gears 49 are fixedly connected to the surface of the rotating shafts 48. A first fixing block 413 is fixedly connected to the front and back sides of the slider 43 near the right side of the inner wall of the fixed frame 41. A first rack 411 is fixedly connected to the other end of the first fixing block 413. A second fixing block 414 is fixedly connected to the front and back sides of the slider 43 near the left side of the inner wall of the fixed frame 41. A second rack 412 is fixedly connected to the other end of the second fixing block 414.

[0027] The output end of the second hydraulic cylinder 47 is fixedly connected to the right side of the slider 43 near the right side of the inner wall of the fixed frame 41.

[0028] Both the first rack 411 and the second rack 412 mesh with the gear 49, with the first rack 411 located below the second rack 412.

[0029] The fixed frame 41 has slots on the left and right sides, and the first rack 411 and the second rack 412 pass through and slide in the slots. Example

[0030] Please see Figure 1-2 Furthermore, based on Embodiment 1, a height adjustment mechanism 3 is obtained.

[0031] The height adjustment mechanism 3 includes a fixed base 31, which is fixedly connected to the bottom of the base 1. A first hydraulic cylinder 32 is fixedly connected to the bottom of the fixed base 31. A lifting plate 33 is fixedly connected to the output end of the first hydraulic cylinder 32. A sliding rod 34 is symmetrically fixedly connected to the top of the lifting plate 33 in all directions. A rectangular ring 35 is fixedly connected to the top of the sliding rod 34.

[0032] The top of the base 1 has a hole that matches the slide bar 34, and the slide bar 34 is connected to the hole by sliding up and down through the surface of the slide bar 34.

[0033] The top of the rectangular ring 35 is fixedly connected to the bottom of the fixed frame 41.

[0034] In actual operation, when this device is in use, the height adjustment mechanism 3 uses the first hydraulic cylinder 32 as its power source. When it is necessary to adjust the height of the clamping device, the first hydraulic cylinder 32 is activated, and its output end pushes the lifting plate 33 to move up or down. The slide bar at the top of the lifting plate 33 slides up and down in the corresponding hole at the top of the base 1, which plays a guiding and stabilizing role and prevents deviation during the lifting process. The rectangular ring 35 connected to the top of the slide bar is fixedly connected to the bottom of the fixed frame 41, thereby driving the fixed frame 41 and its clamping mechanism 4 and impeller to adjust the height to adapt to the height requirements of different processing equipment or the usage needs of operators.

[0035] The clamping mechanism 4 is powered by the second hydraulic cylinder 47. After the second hydraulic cylinder 47 is activated, its output pushes the slider 43 on the right side of the inner wall of the fixed frame 41 to move to the right. The right slider 43 drives the first rack 411 to move synchronously via the first fixed block 413. Since the first rack 411 meshes with the gear 49, the gear 49 rotates around the shaft 48. When the gear 49 rotates, it meshes with the second rack 412 on the other side, driving the second rack 412 to move to the left, which in turn pulls the left slider 43 to the left via the second fixed block 414. The synchronous movement of the left and right sliders 43 in opposite directions causes the arc-shaped clamping plates 45 fixed to the top of the slider 43 to move away from each other. The contact and friction between the arc-shaped rubber pad 46 and the impeller surface stably clamp the impeller. During this process, the guide rods 42 symmetrically arranged on the left and right sides of the inner wall of the fixed frame 41 guide and limit the sliding of the slider 43, ensuring smooth movement of the slider 43 and enabling the arc-shaped clamping plates 45 to accurately and stably clamp the impeller.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A clamping device for machining of a bladed disc comprising a base (1), characterised in that: The base (1) has symmetrically fixed support legs (2) at the bottom, front, back, left and right. The base (1) has a height adjustment mechanism (3) at the bottom and a clamping mechanism (4) at the top. The clamping mechanism (4) includes a fixed frame (41), which is located on top of the height adjustment mechanism (3). Guide rods (42) are symmetrically fixedly connected to the left and right sides, top and bottom, front and back of the inner wall of the fixed frame (41). Slider blocks (43) are symmetrically slidably connected to the surface of the guide rods (42). Fixed plates (44) are fixedly connected to the top of the two sliders (43). Arc-shaped clamping plates (45) are fixedly connected to the top of the fixed plates (44). Arc-shaped rubber pads (46) are fixedly connected to the outer walls of the two arc-shaped clamping plates (45). A second hydraulic system is fixedly connected to the right side of the fixed frame (41). The cylinder (47) has a rotating shaft (48) symmetrically connected to the front and rear sides of the inner wall of the fixed frame (41). A gear (49) is fixedly connected to the surface of the rotating shaft (48). A first fixing block (413) is fixedly connected to the front and rear sides of the slider (43) near the right side of the inner wall of the fixed frame (41). A first rack (411) is fixedly connected to the other end of the first fixing block (413). A second fixing block (414) is fixedly connected to the front and rear sides of the slider (43) near the left side of the inner wall of the fixed frame (41). A second rack (412) is fixedly connected to the other end of the second fixing block (414).

2. A clamping device for blisk machining as claimed in claim 1, characterized in that: The output end of the second hydraulic cylinder (47) is fixedly connected to the right side of the slider (43) near the right side of the inner wall of the fixed frame (41).

3. The clamping device for blisk machining according to claim 1, characterized in that: The first rack (411) and the second rack (412) both mesh with the gear (49), with the first rack (411) located below the second rack (412).

4. The clamping device for blisk machining according to claim 1, characterized in that: The fixed frame (41) has slots on the left and right sides, and the first rack (411) and the second rack (412) pass through and slide in the slots.

5. The apparatus of claim 1 wherein: The height adjustment mechanism (3) includes a fixed seat (31), which is fixedly connected to the bottom of the base (1). A first hydraulic cylinder (32) is fixedly connected to the bottom of the fixed seat (31). A lifting plate (33) is fixedly connected to the output end of the first hydraulic cylinder (32). A sliding rod (34) is fixedly connected to the top of the lifting plate (33) symmetrically in the front, back, left and right. A rectangular ring (35) is fixedly connected to the top of the sliding rod (34).

6. A clamping device for blisk machining according to claim 5, characterized in that: The base (1) has a hole at the top that matches the slide rod (34), and the slide rod (34) is connected to the hole by sliding up and down through the surface of the slide rod (34).

7. The clamping device for blisk machining according to claim 5, characterized in that: The top of the rectangular ring (35) is fixedly connected to the bottom of the fixed frame (41).

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