Turbine blade machining profile milling clamp convenient to disassemble and assemble

Abstract

The utility model discloses a turbine blade machining profile milling clamp convenient to disassemble and assemble, and relates to the technical field of turbines. Comprising a base; the bottom of the adjusting structure is fixedly connected with the top of the base; the bottom of the fixing structure is fixedly connected with the top of the adjusting structure; the fixing structure comprises a first stabilizing block, the inner wall of the first stabilizing block is slidably connected with a fixing block, the outer wall of the first stabilizing block is fixedly connected with a stabilizing spring and a sliding rod, and the end, away from the first stabilizing block, of the stabilizing spring is fixedly connected with a second stabilizing block. Pre-compression elastic force is provided through the stabilizing springs to achieve the primary clamping foundation, the first stabilizing block and the second stabilizing block are locked or unlocked through cooperation of the fixing rods, the inserting holes and the fixing grooves, the fixing blocks are convenient to mount and demount, and manpower input and time consumption are reduced.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, specifically to a milling fixture for steam turbine blades that is easy to disassemble and assemble. Background Technology

[0002] Blades are key components of steam turbines, and among the most delicate and important. They withstand extremely harsh conditions, including high temperature, high pressure, immense centrifugal force, steam force, steam excitation force, corrosion and vibration, and the combined effects of water droplet erosion in wet steam zones. Their aerodynamic performance, machining geometry, surface roughness, installation clearance, operating conditions, and scaling all affect the efficiency and output of the steam turbine. Traditional fixtures are not convenient to assemble and disassemble. After blade machining or during fixture maintenance, the complex fixing structure makes disassembly extremely cumbersome, requiring specialized tools, multiple steps, and significant manpower and time costs. Frequent disassembly can also cause fixture wear and deformation, affecting subsequent positioning and clamping accuracy, and ultimately reducing blade machining quality. Therefore, to solve these problems, improve the efficiency and quality of steam turbine blade machining, and reduce losses, this utility model was developed. Utility Model Content

[0003] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a milling fixture for turbine blade machining that is easy to assemble and disassemble, comprising: a base; an adjusting structure, the bottom of which is fixedly connected to the top of the base; a fixing structure, the bottom of which is fixedly connected to the top of the adjusting structure; the fixing structure includes a first stabilizing block, a fixing block slidably connected to the inner wall of the first stabilizing block, a stabilizing spring and a sliding rod fixedly connected to the outer wall of the first stabilizing block, and a second stabilizing block fixedly connected to the end of the stabilizing spring away from the first stabilizing block.

[0004] Preferably, the bottom of the first stabilizing block is fixedly connected to the top of the slider, the inner wall of the second stabilizing block is rotatably connected to a fixed rod, and the outer wall of the sliding rod is slidably connected to the inner wall of the second stabilizing block.

[0005] Preferably, the outer wall of the first stabilizing block has an insertion hole, and the outer wall of the insertion hole has a fixing groove.

[0006] Preferably, the outer wall of the fixing rod is slidably connected to the inner wall of the insertion hole, the fixing groove matches the fixing rod, and the pre-compression elastic force provided by the stabilizing spring realizes the initial clamping foundation. The first stabilizing block and the second stabilizing block are locked or unlocked by the cooperation of the fixing rod, the insertion hole and the fixing groove, making the operation convenient when installing and removing the fixing blocks.

[0007] Preferably, the adjustment structure includes a support frame, the bottom of which is fixedly connected to the top of the base, a drive motor is fixedly connected to the outer wall of the support frame, a bidirectional lead screw is fixedly connected to the output shaft of the drive motor, a slider is threadedly connected to the outer wall of the bidirectional lead screw, and a stabilizing rod is slidably connected to the inner wall of the slider.

[0008] Preferably, the inner wall of the support frame is rotatably connected to the outer wall of the bidirectional lead screw, and the inner wall of the support frame is fixedly connected to the outer wall of the stabilizer. The drive motor, bidirectional lead screw, slider, and stabilizer in the adjustment structure work together. The rotation of the bidirectional lead screw drives the slider to move horizontally towards or away from each other under the limiting guidance of the stabilizer.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. This utility model features a cleverly designed fixing structure. A stabilizing spring provides pre-compression force to achieve initial clamping. The fixing rod, along with the insertion hole and fixing groove, locks or unlocks the first and second stabilizing blocks. This makes the installation and removal of the fixing blocks convenient, eliminating the need for numerous professional tools and complex steps, thus reducing manpower and time consumption.

[0011] 2. This utility model, by setting up an adjustment structure, in which the drive motor, bidirectional lead screw and slider, and stabilizer bar work together, the rotation of the bidirectional lead screw drives the slider to move horizontally in opposite directions or in opposite directions under the limiting guidance of the stabilizer bar. It can flexibly adjust the position according to the turbine blades of different sizes, meet diverse processing needs, and has good adaptability, laying the foundation for efficient blade processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the adjusting structure of this utility model;

[0014] Figure 3 This is a schematic diagram showing the internal structure of the fixed structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the internal structure of the first stabilizing block of this utility model.

[0016] In the diagram: 1. Base; 2. Adjustment structure; 3. Fixing structure; 21. Support frame; 22. Drive motor; 23. Two-way lead screw; 24. Slider; 25. Stabilizer; 31. Fixing block; 32. First stabilizer; 33. Second stabilizer; 34. Stabilizing spring; 35. Sliding rod; 36. Fixing rod; 321. Insertion hole; 322. Fixing groove. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0018] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a milling fixture for machining turbine blades that is easy to assemble and disassemble, comprising: 1. A milling fixture for machining turbine blades that is easy to assemble and disassemble, characterized in that it comprises: a base 1; an adjusting structure 2, the bottom of the adjusting structure 2 being fixedly connected to the top of the base 1; a fixing structure 3, the bottom of the fixing structure 3 being fixedly connected to the top of the adjusting structure 2; the fixing structure 3 includes a first stabilizing block 32, a fixing block 31 being slidably connected to the inner wall of the first stabilizing block 32, a stabilizing spring 34 and a sliding rod 35 being fixedly connected to the outer wall of the first stabilizing block 32, and a second stabilizing block 33 being fixedly connected to the end of the stabilizing spring 34 away from the first stabilizing block 32.

[0019] The bottom of the first stabilizing block 32 is fixedly connected to the top of the slider 24, the inner wall of the second stabilizing block 33 is rotatably connected to the fixed rod 36, and the outer wall of the sliding rod 35 is slidably connected to the inner wall of the second stabilizing block 33.

[0020] The outer wall of the first stabilizing block 32 has an insertion hole 321, and the outer wall of the insertion hole 321 has a fixing groove 322.

[0021] The outer wall of the fixing rod 36 is slidably connected to the inner wall of the insertion hole 321, and the fixing groove 322 matches the fixing rod 36. In use, the fixing structure 3 is responsible for firmly fixing the turbine blade. The first stabilizing block 32 and the second stabilizing block 33 are connected by the stabilizing spring 34. In the initial state, the stabilizing spring 34 is pre-compressed to provide a spring force basis for subsequent clamping. The blade is placed between them, and the sliding rod 35 assists the second stabilizing block 33 to slide stably, ensuring smooth clamping. The fixing rod 36 is rotated so that it passes through the insertion hole 321 on the outer wall of the first stabilizing block 32 and is inserted into the fixing groove 322. Utilizing the matching characteristics of the two, the first stabilizing block 32 and the second stabilizing block 33 are locked. With the spring force of the stabilizing spring 34, the fixing block 31 is firmly fixed between the first stabilizing block 32 and the second stabilizing block 33, avoiding loosening and displacement during processing. When it is necessary to disassemble the fixing block 31, simply press the fixing rod 36 and rotate it to slide it out of the insertion hole 321. At this time, the fixing block 31 can be removed. The installation is done in reverse.

[0022] The adjustment structure 2 includes a support frame 21, the bottom of which is fixedly connected to the top of the base 1. A drive motor 22 is fixedly connected to the outer wall of the support frame 21. A bidirectional lead screw 23 is fixedly connected to the output shaft of the drive motor 22. A slider 24 is threadedly connected to the outer wall of the bidirectional lead screw 23. A stabilizing rod 25 is slidably connected to the inner wall of the slider 24.

[0023] The inner wall of the support frame 21 is rotatably connected to the outer wall of the bidirectional lead screw 23, and the inner wall of the support frame 21 is fixedly connected to the outer wall of the stabilizer 25. In use, the base 1 serves as the base of the entire equipment and is fixed to the ground. The adjustment structure 2 plays a key position adjustment function. Its bottom is firmly supported by the support frame 21 and stands on the base 1, forming a solid foundation. During operation, the drive motor 22 starts, and the output shaft of the drive motor 22 drives the bidirectional lead screw 23 to rotate. Since the bidirectional lead screw 23 is rotatably connected to the inner wall of the support frame 21, the rotation is stable and smooth. During the rotation of the bidirectional lead screw 23, the stabilizer 25 passes through the slider 24 and is fixedly connected to the inner wall of the support frame 21. The slider 24, which is threaded to the outer wall of the bidirectional lead screw 23, is limited and guided by the stabilizer 25, ensuring that the slider 24 can only move smoothly along the axis of the lead screw, realizing the horizontal opposite or opposite displacement, thereby adjusting the distance between the parts connected to the slider 24 to adapt to the position required for processing blades of different sizes.

[0024] Working principle:

[0025] In use, the base 1 serves as the base of the entire device and is fixed to the ground. The adjustment structure 2 plays a key position adjustment function. Its bottom is supported by the support frame 21 and stands firmly on the base 1, forming a solid foundation. When working, the drive motor 22 starts, and the output shaft of the drive motor 22 drives the bidirectional lead screw 23 to rotate. Since the bidirectional lead screw 23 is rotatably connected to the inner wall of the support frame 21, it ensures stable and smooth rotation. During the rotation of the bidirectional lead screw 23, the stabilizer 25 passes through the slider 24 and is fixedly connected to the inner wall of the support frame 21. The slider 24, which is threaded to the outer wall of the bidirectional lead screw 23, is limited and guided by the stabilizer 25, ensuring that the slider 24 can only move smoothly along the axis of the lead screw, realizing the horizontal opposite or opposite displacement, thereby adjusting the distance between the parts connected to the slider 24 to adapt to the position required for processing blades of different sizes.

[0026] In use, the fixing structure 3 is responsible for firmly fixing the turbine blades. The first stabilizing block 32 and the second stabilizing block 33 are connected by a stabilizing spring 34. In the initial state, the stabilizing spring 34 is pre-compressed, providing a spring force basis for subsequent clamping. The blade is placed between them, and the sliding rod 35 assists the second stabilizing block 33 to slide stably, ensuring smooth clamping. The fixing rod 36 is rotated so that it passes through the insertion hole 321 on the outer wall of the first stabilizing block 32 and is inserted into the fixing groove 322. Utilizing the matching characteristics of the two, the first stabilizing block 32 and the second stabilizing block 33 are locked. With the spring force of the stabilizing spring 34, the fixing block 31 is firmly fixed between the first stabilizing block 32 and the second stabilizing block 33, preventing loosening and displacement during processing. When it is necessary to disassemble the fixing block 31, simply press the fixing rod 36 and rotate it to slide it out from the insertion hole 321. At this time, the fixing block 31 can be removed. The installation is done in reverse.

[0027] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A milling fixture for machining turbine blades that is easy to assemble and disassemble, characterized in that, include: Base (1); Adjustment structure (2), the bottom of which is fixedly connected to the top of base (1); The bottom of the fixed structure (3) is fixedly connected to the top of the adjusting structure (2); The fixed structure (3) includes a first stabilizing block (32), a fixed block (31) is slidably connected to the inner wall of the first stabilizing block (32), a stabilizing spring (34) and a sliding rod (35) are fixedly connected to the outer wall of the first stabilizing block (32), and a second stabilizing block (33) is fixedly connected to the end of the stabilizing spring (34) away from the first stabilizing block (32).

2. The turbine blade milling fixture for easy assembly and disassembly according to claim 1, characterized in that: The bottom of the first stabilizing block (32) is fixedly connected to the top of the slider (24), and the inner wall of the second stabilizing block (33) is rotatably connected to a fixed rod (36). The outer wall of the sliding rod (35) is slidably connected to the inner wall of the second stabilizing block (33).

3. The turbine blade milling fixture for easy assembly and disassembly according to claim 1, characterized in that: The outer wall of the first stabilizing block (32) is provided with an insertion hole (321), and the outer wall of the insertion hole (321) is provided with a fixing groove (322).

4. A milling fixture for machining turbine blades that is easy to assemble and disassemble, as described in claim 2, is characterized in that: The outer wall of the fixing rod (36) is slidably connected to the inner wall of the insertion hole (321), and the fixing rod (36) matches the fixing groove (322).

5. A milling fixture for machining turbine blades that is easy to assemble and disassemble, as described in claim 1, characterized in that: The adjustment structure (2) includes a support frame (21), the bottom of which is fixedly connected to the top of the base (1), a drive motor (22) is fixedly connected to the outer wall of the support frame (21), a bidirectional lead screw (23) is fixedly connected to the output shaft of the drive motor (22), a slider (24) is threadedly connected to the outer wall of the bidirectional lead screw (23), and a stabilizer (25) is slidably connected to the inner wall of the slider (24).

6. A milling fixture for machining turbine blades that is easy to assemble and disassemble, as described in claim 5, is characterized in that: The inner wall of the support frame (21) is rotatably connected to the outer wall of the bidirectional lead screw (23), and the inner wall of the support frame (21) is fixedly connected to the outer wall of the stabilizer (25).

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