Turbine de-weight positioning mechanism, de-weight equipment and de-weight method

Abstract

The invention relates to the field of turbine de-weight devices, in particular to a turbine de-weight positioning mechanism, de-weight equipment and a de-weight method. The turbine de-weight positioning mechanism comprises a pressing follow-up mechanism which comprises a lifting driving source, a sliding seat connected with the action end of the lifting driving source, a base fixedly connected with the sliding seat, a first rotating shaft rotationally connected with the base and a pressing head arranged at the end, away from the base, of the first rotating shaft; the driving rotating mechanism comprises a rotating driving source, a rotating seat connected with the output end of the rotating driving source and a second rotating shaft arranged on the rotating seat; wherein the second rotating shaft is used for primarily positioning the turbine, and the lifting driving source drives the pressing head to be close to the second rotating shaft and tightly press the turbine. The device has the advantages that automatic and accurate positioning is achieved, personal errors are reduced, and the production efficiency and the de-weight quality are improved.

Description

Technical Field

[0001] This invention relates to the field of turbine de-weighting devices, and in particular to a turbine de-weighting positioning mechanism, de-weighting equipment, and de-weighting method. Background Technology

[0002] The core purpose of turbine deweight removal is to achieve rotor dynamic balance, reduce rotational inertia, optimize structural strength and efficiency, and ensure the safety and performance of high-speed rotating components.

[0003] Existing turbine weight reduction technology still has significant shortcomings in terms of precision control, efficiency, structural adaptability, and process compatibility, making it difficult to fully meet the stringent requirements of high-end equipment. Specifically:

[0004] 1. High degree of manual intervention: Weighing, sorting, marking, and alignment still rely on manual labor, which is inefficient and prone to errors; assembly concentricity is adjusted by "eyes and touch", resulting in a rework rate as high as 20%.

[0005] Second, it poses a high risk to thin-walled / hollow blades: drilling holes can easily puncture the cooling cavity or produce burrs and microcracks, causing stress concentration and reducing fatigue life.

[0006] Third, lack of process standards: There are no unified specifications for the diameter, depth, number and distribution of de-balance holes, and they rely on experience, resulting in large differences in the residual imbalance given by different operators, making it difficult to meet the aerospace grade requirement of ≤0.1 g. Summary of the Invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art, thereby providing a turbine de-weighting positioning mechanism, de-weighting equipment and de-weighting method.

[0008] Firstly, a turbine weight-removal positioning mechanism is provided, comprising:

[0009] The pressing follow-up mechanism includes a lifting drive source, a sliding seat connected to the working end of the lifting drive source, a base fixedly connected to the sliding seat, a first rotating shaft rotatably connected to the base, and a pressing head disposed at one end of the first rotating shaft away from the base.

[0010] An active rotation mechanism includes a rotation drive source, a rotating base connected to the output end of the rotation drive source, and a second rotating shaft disposed on the rotating base;

[0011] The second rotating shaft initially positions the turbine, and the lifting drive source drives the pressure head to approach the second rotating shaft and press against the turbine.

[0012] In one embodiment of the present invention, the pressing follower mechanism further includes a dust suction hood that is floatingly connected to the sliding seat; the dust suction hood is configured to cover the pressure head and at least part of the base.

[0013] In one embodiment of the present invention, the dust collection hood has two notches on the side near the rotating seat, one notch is used to connect the negative pressure device, and the other notch is used to insert the weight removal actuator.

[0014] In one embodiment of the present invention, the pressing follower mechanism further includes at least one floating module mounted on the sliding seat; the floating module is configured to absorb the impact energy when the dust cover contacts the rotating seat, thereby reducing the transmission of vibration to the rotating seat.

[0015] In one embodiment of the present invention, the floating module includes a guide rod with both ends fixedly connected to the sliding seat and an elastic element sleeved on the guide rod; one end of the elastic element abuts against the sliding seat and the other end abuts against the dust collection cover.

[0016] In one embodiment of the present invention, the rotary drive source and the rotary seat are connected by a transmission module.

[0017] In one embodiment of the present invention, the transmission module includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt; the synchronous belt is tensioned between the first synchronous pulley and the second synchronous pulley, the output end of the rotary drive source is connected to the first synchronous pulley, and the first synchronous pulley and the second synchronous pulley are located on the same horizontal plane.

[0018] Secondly, a turbine weight removal device is provided, comprising:

[0019] As described above, the turbine de-weighting and positioning mechanism;

[0020] A weight-removing mechanism is provided on one side of the turbine weight-removing positioning mechanism; the weight-removing mechanism includes a motion module, a rotating module connected to the movable part of the motion module, and a weight-removing actuator connected to the output end of the rotating module; the motion module is configured to move in the horizontal and / or vertical direction; the weight-removing actuator removes weight from the turbine.

[0021] In one embodiment of the present invention, the motion module includes a first linear motion module and a second linear motion module connected to a movable part of the first linear motion module; the rotation module is connected to the movable part of the second linear motion module.

[0022] Thirdly, a deweighting method is provided, utilizing the turbine deweighting device as described above, comprising the following steps:

[0023] Place the turbine on the second rotating shaft, start the lifting drive source, and drive the pressure head to approach and press the turbine;

[0024] Start the motion module and adjust the weight-removing actuator to align with the turbine; at the same time, start the rotation module and the rotation drive source. The rotation drive source drives the rotating seat to rotate, which in turn drives the second rotating shaft to rotate. The rotation module drives the weight-removing actuator to remove weight from the turbine.

[0025] Compared with the prior art, the above-described technical solution of the present invention has the following advantages:

[0026] The turbine de-weighting positioning mechanism of the present invention achieves automatic positioning and clamping by pressing the turbine with a clamping follower mechanism and driving the rotation with an active rotation mechanism. It has the advantages of achieving automated and precise positioning, reducing human error, improving production efficiency and de-weighting quality. Attached Figure Description

[0027] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the turbine de-weighting device in this invention;

[0029] Figure 2 This is a schematic diagram of the turbine weight removal device (dust hood not shown) in this invention;

[0030] Figure 3 This is a first-view structural schematic diagram of the pressing follower mechanism in this invention;

[0031] Figure 4 This is a second-view structural schematic diagram of the pressing follower mechanism in this invention;

[0032] Figure 5 This is a schematic diagram of the pressing follow-up mechanism (dust hood not shown) in this invention;

[0033] Figure 6 This is a schematic diagram of the active rotation mechanism (showing a turbine) in this invention;

[0034] Figure 7 This is a schematic diagram of the de-weighting mechanism in this invention.

[0035] Explanation of reference numerals in the instruction manual:

[0036] 10. Pressing follow-up mechanism; 101. Sliding seat; 102. Floating module; 103. Dust collection hood; 104. Base; 105. First rotating shaft; 106. Press head;

[0037] 20. Active rotation mechanism; 201. Second rotating shaft; 202. Rotary seat; 203. Rotation drive source;

[0038] 30. Weight removal mechanism; 301. First linear motion module; 302. Second linear motion module; 303. Rotation module; 304. Weight removal actuator;

[0039] 40. Turbine. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0041] In the field of turbine de-balance technology, existing methods suffer from excessive manual intervention. Weighing, sorting, marking, and alignment operations are all performed manually, resulting in low efficiency and easy introduction of errors. Assembly concentricity adjustment relies on the operator's subjective judgment, leading to a high rework rate. For thin-walled or hollow blade structures, drilling operations can easily penetrate the internal cooling cavity or generate burrs and microcracks, causing stress concentration and reducing fatigue life. At the same time, the diameter, depth, number, and distribution of de-balance holes lack unified standards, relying on the operator's experience, resulting in fluctuations in the remaining imbalance, making it difficult to meet high precision requirements.

[0042] Therefore, combined Figure 2 , Figure 5 and Figure 6 This embodiment proposes a turbine weight-removal positioning mechanism, comprising:

[0043] The pressing follower mechanism 10 includes a lifting drive source, a sliding seat 101 connected to the working end of the lifting drive source, a base 104 fixedly connected to the sliding seat 101, a first rotating shaft 105 rotatably connected to the base 104, and a pressing head 106 disposed at one end of the first rotating shaft 105 away from the base 104.

[0044] The active rotation mechanism 20 includes a rotation drive source 203, a rotation seat 202 connected to the output end of the rotation drive source 203, and a second rotating shaft 201 disposed on the rotation seat 202.

[0045] The second rotating shaft 201 initially positions the turbine 40, and the lifting drive source drives the pressure head 106 to approach the second rotating shaft 201 and press the turbine 40.

[0046] For ease of understanding, the following explains some key terms in this embodiment:

[0047] A turbine de-weighting positioning mechanism is a device used to precisely fix and initially align a turbine before de-weighting operations. This mechanism aims to ensure the turbine maintains a stable position and attitude during the de-weighting process, thereby improving de-weighting accuracy and efficiency.

[0048] The clamping follower mechanism 10 is an assembly used to apply clamping force to the turbine 40. This mechanism can be adjusted according to the position of the turbine 40 to ensure that the pressure head 106 can effectively contact and fix the turbine 40.

[0049] The lifting drive source (not shown in the figure) is a power device that provides vertical movement capability. This drive source typically drives the sliding seat 101 to move up and down along a preset path via a mechanical connection, thereby controlling the lifting and lowering of the pressure head 106.

[0050] The sliding seat 101 is a movable component in the clamping follower mechanism 10. The sliding seat 101 supports components such as the base 104 and the pressure head 106, and is displaced vertically under the action of the lifting drive source.

[0051] The base 104 is a support structure in the clamping follower mechanism 10. The base 104 is fixedly connected to the sliding seat 101 and provides rotational support for the first rotating shaft 105.

[0052] The first rotating shaft 105 is a rotatable shaft with one end connected to the base 104 and the other end located away from the base 104, where a pressure head 106 is provided. This first rotating shaft 105 allows the pressure head 106 to have a certain degree of adaptability when pressing the turbine 40.

[0053] The pressure head 106 is the component that directly contacts and presses against the turbine 40. The pressure head 106 typically has a shape that matches the surface of the turbine 40 to ensure uniform clamping force and stable positioning effect.

[0054] The active rotation mechanism 20 is a component used to drive the turbine 40 to rotate. During the weight removal process, the mechanism causes the turbine 40 to rotate about its central axis so that the weight removal actuator 304 can process different areas of the turbine 40.

[0055] The rotary drive source 203 is a device that provides rotational power. This drive source is typically an electric motor, the output of which is connected to the rotary base 202, thereby driving the rotary base 202 and the second rotating shaft 201 to rotate.

[0056] The rotating seat 202 is a rotating component in the active rotating mechanism 20. The rotating seat 202 receives power from the rotation drive source 203 and drives the second rotating shaft 201 to rotate together.

[0057] The second shaft 201 is a shaft used to support and initially position the turbine 40. The second shaft 201 typically has a structure that mates with the center bore of the turbine 40 to achieve initial alignment and rotational support of the turbine 40.

[0058] Turbine 40 is the object handled by this organization, which usually refers to the rotating parts in equipment such as aircraft engines and gas turbines, which need to be deweighted to achieve dynamic balance.

[0059] This embodiment provides a turbine weight-removing positioning mechanism, which is characterized by including a pressing follower mechanism 10 and an active rotation mechanism 20.

[0060] The clamping follow-up mechanism 10 is designed to stably clamp the turbine 40. This mechanism may include a lifting drive source, which may be a cylinder, hydraulic cylinder, or electric push rod, etc., with its working end connected to a sliding seat 101.

[0061] The sliding base 101 can move vertically along a preset guide rail. The base 104 is fixedly connected to the sliding base 101, providing a stable mounting platform for subsequent components.

[0062] The first rotating shaft 105 is rotatably connected to the base 104. The design of the first rotating shaft 105 allows it to have a certain floating or self-adaptive ability during the pressing process, so as to adapt to the minor unevenness that may exist on the surface of the turbine 40.

[0063] The pressure head 106 is located at the end of the first rotating shaft 105 away from the base 104. The shape of the pressure head 106 can be customized according to the specific structure of the turbine 40. For example, it can be a flat head, a conical head, or a pressure block with a specific profile to ensure effective contact and compression with the turbine 40.

[0064] The active rotation mechanism 20 is configured to drive the turbine 40 to rotate about its central axis for weight removal. This mechanism may include a rotation drive source 203, which may be a servo motor, stepper motor, or AC motor, etc., with its output connected to a rotary base 202.

[0065] The rotating base 202 supports the second rotating shaft 201 and receives power from the rotation drive source 203 to rotate. The second rotating shaft 201 is mounted on the rotating base 202 and is typically designed to have a tapered or stepped structure so as to cooperate with the center hole of the turbine 40 to achieve the initial positioning of the turbine 40.

[0066] In practical operation, the second rotating shaft 201 serves to initially position the turbine 40. For example, the operator can fit the center hole of the turbine 40 onto the second rotating shaft 201, thereby aligning the approximate center of the turbine 40 with the rotation center of the second rotating shaft 201. Subsequently, the lifting drive source is activated, driving the sliding seat 101 and its connected base 104 and pressure head 106 to move downwards. The pressure head 106 gradually approaches the turbine 40, which has been initially positioned on the second rotating shaft 201, and finally presses the turbine 40 firmly. The application of the clamping force aims to securely fix the turbine 40 to the second rotating shaft 201, preventing it from shifting or vibrating during rotation and weight removal.

[0067] Compared to existing technologies that rely on manual positioning and clamping of the turbine, this mechanism uses a second rotating shaft 201 to initially position the turbine 40, and a lifting drive source drives the pressure head 106 to automatically clamp the turbine 40, greatly reducing manual intervention. For example, in traditional solutions, the concentricity of turbine assembly often requires adjustment by "eye and feel," resulting in a high rework rate. The automated positioning and clamping process of this mechanism significantly improves positioning accuracy and repeatability, thereby reducing the rework rate caused by positioning errors and improving overall production efficiency.

[0068] Furthermore, the clamping follower mechanism 10 of this device can provide a stable and uniform clamping force. The rotational connection characteristics of the first rotating shaft 105 enable the pressure head 106 to have a certain degree of self-adaptability when clamping the turbine 40, allowing it to better conform to the surface of the turbine 40 and avoid localized high stress or damage that may be caused by traditional rigid clamps. Especially for thin-walled or hollow blade turbines 40, this reduces the risk of penetrating the cooling cavity or generating microcracks during drilling or weight removal. This contrasts sharply with the high risk associated with thin-walled / hollow blades in existing technologies, and this device can effectively ensure the structural integrity and fatigue life of the turbine 40.

[0069] Furthermore, the stable rotating platform provided by the active rotating mechanism 20, combined with precise positioning and clamping, provides a stable machining reference for the weight-removing actuator 304. This facilitates the standardization and precise control of the weight-removing process, ensuring that the diameter, depth, number, and distribution of the weight-removing holes are performed according to preset parameters, reducing reliance on operational experience. Compared to existing technologies that lack process standards and lead to significant differences in residual imbalance values ​​given by different operators, this mechanism better meets the high-precision weight-removing requirements of aerospace-grade weights ≤0.1 g, ensuring product quality consistency and reliability.

[0070] In summary, the turbine de-weighting positioning mechanism of this embodiment effectively solves the technical problems of excessive manual intervention, low efficiency, high risk to thin-walled turbines, and lack of process standards in the prior art through its automated, high-precision, and adaptive positioning and clamping mechanism, providing a more advanced, reliable, and efficient solution for the field of turbine de-weighting.

[0071] Combination Figure 3 and Figure 4 This embodiment further proposes that the above-mentioned pressing follower mechanism 10 also includes a dust suction hood 103 that is floatingly connected to the sliding seat 101; the dust suction hood 103 is configured to cover the pressure head 106 and at least part of the base 104.

[0072] Among them, the dust hood 103 is a hood structure used to collect and guide particulate matter such as dust and debris. Its main function is to confine the pollutants generated during the de-lamination process to a specific area and remove them through a negative pressure system to maintain the cleanliness of the working environment.

[0073] The dust hood 103 can be made of transparent or semi-transparent materials such as polycarbonate or acrylic to facilitate observation of the internal working conditions. Its shape and size should be designed according to the dimensions of the turbine 40 and the pressure head 106, as well as the working range of the weight removal actuator 304, to ensure effective coverage of the weight removal area.

[0074] The floating connection between the vacuum hood 103 and the sliding seat 101 means that there is a certain degree of relative freedom of movement between the vacuum hood 103 and the sliding seat 101, allowing the vacuum hood 103 to make slight displacements or posture adjustments within a certain range, rather than being rigidly fixed. This floating connection can be achieved through a combination of a guide rod and a spring. The guide rod restricts the lateral movement of the vacuum hood 103, while the spring provides axial cushioning and floating capability.

[0075] The dust hood 103 is configured to cover the pressure head 106 and at least part of the base 104, ensuring that the dust hood 103 can effectively enclose the de-weighting area (including the area near the pressure head 106 and part of the base 104) to prevent dust from spilling out. The internal space of the dust hood 103 should be large enough to accommodate the pressure head 106 and part of the base 104, and to maintain effective coverage of the de-weighting area even when the pressure head 106 descends to press against the turbine 40. The lower edge of the dust hood 103 may be designed to form a tight or near-tight fit with the edge of the rotating seat 202 or the turbine 40 to minimize dust escape.

[0076] In the turbine de-weighting positioning mechanism, when the lifting drive source drives the sliding seat 101 to descend, thereby causing the base 104 and the pressure head 106 to descend and press against the turbine 40, the dust suction hood 103, through its floating connection with the sliding seat 101, can descend synchronously. This floating connection allows the lower edge of the dust suction hood 103 to form a relatively enclosed space with the surface of the rotating seat 202 or the turbine 40 during descent, thereby covering the pressure head 106, part of the base 104, and the de-weighting area of ​​the turbine 40. When the de-weighting actuator 304 performs de-weighting operations on the turbine 40, the generated dust and debris are confined inside the dust suction hood 103. Because the dust hood 103 and the sliding seat 101 are connected by a floating connection, it can buffer the impact that may be generated when the pressure head 106 descends to a certain extent, and allow the lower edge of the dust hood 103 to maintain flexible contact or a small gap with the surface of the rotating seat 202 or the turbine 40, thereby adapting to positioning and clamping under different working conditions, while avoiding direct transmission of impact force to the rotating seat 202, protecting the accuracy and stability of the equipment. In this way, the dust hood 103 effectively creates a locally sealed de-weighting environment, which, together with the external negative pressure suction system, can efficiently collect the dust generated during the de-weighting process, significantly improving the cleanliness of the working environment, protecting the health of operators, and preventing dust from causing wear or contamination to precision mechanical parts, thereby improving the reliability and service life of the equipment.

[0077] This embodiment further proposes that the dust hood 103 has two notches on the side near the rotating seat 202, one notch for connecting the negative pressure device and the other notch for inserting the weight removal actuator 304.

[0078] The dust hood 103 has two notches on the side near the rotating base 202. These notches are either pre-drilled or machined into the side wall of the dust hood 103 facing the operating area of ​​the turbine 40 and the weight-removing actuator 304. These notches can take various shapes and sizes, such as circular, square, elliptical, or irregular shapes. Their specific design depends on the geometry of the equipment to be connected or the parts to be inserted, and can be achieved through molding or machining.

[0079] One of the notches is for connecting to the negative pressure equipment. Its function is to promptly remove metal shavings, dust, and other impurities generated during the weight removal process using negative pressure suction, thereby maintaining the cleanliness of the work area and preventing dust accumulation from affecting equipment accuracy or posing a health hazard to operators. This notch can be designed to match the size and shape of a standard negative pressure vacuum cleaner hose interface. For example, it can be a circular interface with a sealing ring, which reliably connects to the negative pressure equipment via snaps, threads, or quick couplings to ensure effective dust collection.

[0080] Another notch is used to allow the de-weighting actuator 304 to pass through, providing a channel for the actuator to enter the dust hood 103 and perform de-weighting operations on the turbine 40. The design of this notch should allow the de-weighting actuator 304 to move freely within its working range while minimizing the opening area to maintain a negative pressure environment inside the dust hood 103 and improve dust collection efficiency. For example, the notch could be a narrow slot or an opening equipped with flexible bristles or a rubber sealing strip to accommodate the movement trajectory of the de-weighting actuator 304 and provide a certain sealing effect when it passes through.

[0081] This embodiment cleverly resolves the contradiction between the entry of the de-weighting actuator 304 and the effective removal of dust during de-weighting operations by creating two functionally specific notches on the side of the dust hood 103 near the rotating base 202. After the turbine 40 is initially positioned by the second rotating shaft 201 and pressed down by the pressure head 106, the dust hood 103 covers the pressure head 106 and part of the base 104, forming a relatively enclosed space. At this time, one notch allows the negative pressure device to connect and continuously draw air from inside the dust hood 103, thereby quickly removing dust and debris generated during the de-weighting process and preventing their diffusion into the environment. Simultaneously, the other notch provides a precise entry path for the de-weighting actuator 304, enabling it to perform de-weighting operations on the turbine 40 inside the dust hood 103. This design allows the de-weighting actuator 304 to successfully complete the de-weighting task, while the dust hood 103 effectively collects dust. The two work together to ensure the continuity, efficiency, and cleanliness of the de-weighting operation.

[0082] This embodiment further proposes that the clamping follow-up mechanism 10 also includes at least one floating module 102 installed on the sliding seat 101; the floating module 102 is configured to absorb the impact energy when the dust cover 103 contacts the rotating seat 202, and reduce the transmission of vibration to the rotating seat 202.

[0083] The floating module 102 is a mechanical component used to provide cushioning and shock absorption. Its core function is to establish a flexible connection between two components, allowing limited relative movement or deformation, thereby absorbing and dissipating energy upon external impact. The floating module 102 can be implemented in various forms; for example, it can be one or more elastomers, such as rubber pads, polyurethane buffer blocks, or silicone dampers, which absorb impact energy through their own compression deformation. Alternatively, the floating module 102 can also be a hydraulic or pneumatic buffer device, using the damping effect generated by fluid under pressure to cushion impact forces.

[0084] The floating module 102 is mounted on the sliding seat 101, indicating that it is an integral part of or closely connected to the sliding seat 101. This mounting method ensures that the floating module 102 can effectively be positioned between the sliding seat 101 and the dust hood 103, thereby buffering the clamping force from the sliding seat 101 when the dust hood 103 contacts the rotating seat 202, instead of directly transmitting a rigid impact. The floating module 102 is designed to address the impact problem that may occur when the dust hood 103 contacts the rotating seat 202. By absorbing impact energy, the floating module 102 can convert the instantaneous peak impact force into a buffer force with a longer duration and lower peak value, thereby significantly reducing the vibration intensity transmitted to the rotating seat 202. This is crucial for protecting the stability of the rotating seat 202 and the turbine 40 it carries, and helps maintain the accuracy of the de-positioning process.

[0085] During the operation of the turbine de-positioning mechanism, when the lifting drive source drives the sliding seat 101 to move downwards, the dust collection hood 103, which is floatingly connected to the sliding seat 101, also moves downwards. When the dust collection hood 103 approaches and eventually contacts the rotating seat 202 of the active rotating mechanism 20, because the floating module 102 is provided between the dust collection hood 103 and the sliding seat 101, the downward kinetic energy of the dust collection hood 103 is not directly transmitted to the rotating seat 202 in the form of a rigid impact. Instead, the floating module 102 is compressed or deformed at the moment the dust collection hood 103 contacts the rotating seat 202, thereby absorbing the impact energy of the dust collection hood 103. This energy absorption process transforms the instantaneous, high-intensity impact force into a smoother, more continuous buffering force, effectively reducing the peak impact. In this way, the floating module 102 significantly reduces the transmission of impact energy to the rotating seat 202, thereby suppressing the vibration that the rotating seat 202 may generate. This makes the contact between the dust cover 103 and the rotating seat 202 more gentle and stable, avoiding the adverse effects of impact and vibration on the positioning accuracy of the turbine 40, and helping to protect the precision components of the active rotating mechanism 20.

[0086] This embodiment further proposes that the floating module 102 includes a guide rod with both ends fixedly connected to the sliding seat 101 and an elastic element sleeved on the guide rod; one end of the elastic element abuts against the sliding seat 101 and the other end abuts against the dust cover 103.

[0087] The guide rod is a slender rod-like structure whose main function is to provide a precise linear motion trajectory for moving parts and to withstand lateral loads. Guide rods can be made of high-strength steel, stainless steel, ceramics, or composite materials, and their surfaces are typically precision-machined to ensure low friction and high wear resistance.

[0088] An elastic element is a component that can undergo elastic deformation under stress and return to its original shape after the load is removed. Its function is to store and release mechanical energy, thereby providing cushioning, shock absorption, or restoring force. Common elastic elements include helical compression springs, disc springs, torsion bar springs, rubber pads, or gas springs. The guide rods, fixedly connected at both ends to the sliding seat 101, ensure the guide rods are fixed in position and structurally stable on the sliding seat 101, providing reliable support and a guiding reference for the elastic element.

[0089] Fixed connections can be achieved through methods such as threaded fastening, welding, riveting, interference fit, or bonding. The elastic element, fitted onto the guide rod, allows for axial compression and elongation along the guide rod. The guide rod restricts the radial displacement of the elastic element, preventing bending or instability under stress, thus ensuring the stability and effectiveness of the elastic element during impact absorption.

[0090] One end of the elastic element abuts against the sliding seat 101, and the other end abuts against the dust cover 103. This abutment relationship clarifies the force path and point of application of the elastic element. When the dust cover 103 is impacted or moves downward, the elastic element is compressed, thereby absorbing energy; when the impact force is released, the elastic element rebounds, causing the dust cover 103 to return to its initial position and maintain its floating connection with the sliding seat 101.

[0091] This embodiment further proposes that the rotary drive source 203 and the rotary seat 202 are connected by a transmission module.

[0092] The transmission module is a mechanical component used to transmit power, motion, or torque. Its function is to effectively transmit the rotational motion and torque generated by the rotary drive source 203 to the rotary seat 202. This transmission module can perform various functions, such as changing the rotational speed, adjusting the torque, changing the direction of motion, and providing a certain degree of flexible connection or isolation between the driving end and the driven end.

[0093] Specifically, the transmission module can take various forms. For example, it can be a gear transmission mechanism, transmitting power through a series of meshing gears, and achieving speed reduction or acceleration depending on the gear ratio. Another example is a belt drive mechanism, transmitting power by connecting two or more pulleys with a flexible belt; this method typically offers advantages such as smooth transmission and vibration damping. Furthermore, the transmission module can also be a chain drive mechanism, transmitting power through the meshing of a chain and sprockets, suitable for high-power and long-distance transmission.

[0094] This embodiment introduces a transmission module between the rotary drive source 203 and the rotary seat 202, enabling the rotational power generated by the rotary drive source 203 to be converted and transmitted through the transmission module, ultimately driving the rotary seat 202 to rotate precisely. When the turbine 40 is placed on the second rotating shaft 201 and pressed by the pressure head 106, the rotary drive source 203 starts, and its output rotational motion is first transmitted to the transmission module. The transmission module adjusts the speed and torque of the rotary drive source 203 according to its internal design (e.g., gear ratio or pulley diameter ratio), and then transmits the adjusted power to the rotary seat 202. Upon receiving the power, the rotary seat 202 drives the second rotating shaft 201 and the turbine 40 to rotate synchronously. This indirect transmission method not only allows for flexible adjustment of the turbine 40's rotational speed according to the requirements of the weight removal process, ensuring that the weight removal actuator 304 can perform weight removal operations on the turbine 40 in the best condition, but also allows the transmission module to effectively absorb and isolate the vibrations that the rotary drive source 203 may generate during operation, preventing these vibrations from being directly transmitted to the rotating seat 202 and the turbine 40. This significantly improves the stability and positioning accuracy of the turbine 40 during rotation, providing a stable and reliable platform for subsequent weight removal operations.

[0095] This embodiment further proposes that the transmission module includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt; the synchronous belt is tensioned between the first and second synchronous pulleys, the output end of the rotation drive source 203 is connected to the first synchronous pulley, and the first and second synchronous pulleys are located on the same horizontal plane.

[0096] The transmission module is a mechanical device used to transmit power and motion. Specifically, it comprises a first synchronous pulley, a second synchronous pulley, and a synchronous belt. Both the first and second synchronous pulleys are toothed wheel-shaped components, typically made of metal or high-strength engineering plastics, with their teeth precisely matching those of the synchronous belt. The synchronous belt is an annular belt with inner teeth, usually made of materials such as rubber or polyurethane, often with internal reinforcement materials such as glass fiber or steel wire to provide high strength and low elongation. The synchronous belt achieves slip-free synchronous transmission by meshing its inner teeth with those of the first and second synchronous pulleys. To ensure reliable meshing and power transmission between the synchronous belt and the synchronous pulleys, the synchronous belt needs to maintain a certain tension. Tension can be achieved by adjusting the center distance between the first and second synchronous pulleys, or by applying preload through a separate tensioning pulley. The rotary drive source 203 is the component that provides rotational power, and its output shaft is directly or indirectly connected to the first synchronous pulley. The first synchronous pulley, as the driving pulley, receives power from the rotary drive source 203 and transmits this power to the synchronous belt. The rotation axes of the first and second synchronous pulleys are parallel to each other, and their planes are at the same horizontal level. This arrangement helps ensure that the synchronous belt runs smoothly and without skew during operation, reducing belt twisting and edge wear, thereby improving transmission efficiency and service life.

[0097] Combination Figure 1 and Figure 7 This embodiment also proposes a turbine de-weighting device, which includes the aforementioned turbine de-weighting positioning mechanism and a de-weighting mechanism 30. The de-weighting mechanism 30 is disposed on one side of the turbine de-weighting positioning mechanism and specifically includes a motion module, a rotating module 303 connected to the movable part of the motion module, and a de-weighting actuator 304 connected to the output end of the rotating module 303. The motion module is configured to move in a horizontal and / or vertical direction, and the de-weighting actuator 304 is used to perform a de-weighting operation on the turbine 40.

[0098] The core innovation of this embodiment lies in combining the aforementioned turbine de-weighting positioning mechanism with the de-weighting mechanism 30 in a collaborative manner. In particular, by utilizing the motion module to achieve multi-directional precise positioning of the de-weighting actuator 304 and the rotation module 303 to control the rotational speed of the de-weighting actuator 304, the fully automated and high-precision control of the turbine 40 de-weighting process is realized. This effectively avoids errors caused by manual intervention and the risk of thin-walled blade damage, achieving the technical effect of meeting the aerospace-grade high-precision requirement of ≤0.1 g and significantly improving de-weighting efficiency.

[0099] Specifically, the aforementioned turbine de-weighting positioning mechanism can precisely fix and initially align the turbine 40, ensuring its positional stability during the de-weighting process. Based on this, the motion module precisely controls the spatial position of the de-weighting actuator 304 according to a preset program, enabling it to accurately reach the area on the turbine 40 requiring de-weighting. The rotation module 303 can adjust the rotational speed of the de-weighting actuator 304 to adapt to different materials and de-weighting depth requirements, making it particularly suitable for the precision machining of thin-walled / hollow blades, avoiding damage to the cooling cavity or the generation of micro-cracks.

[0100] In actual operation, when the turbine 40 is stably pressed by the aforementioned turbine de-weighting and positioning mechanism and driven to rotate by its active rotation mechanism 20, the motion module of the de-weighting mechanism 30 drives the rotation module 303 and the de-weighting actuator 304 to move to the designated position. Driven by the rotation module 303, the de-weighting actuator 304 rotates at high speed, removing material from the surface of the turbine 40. Because the entire process is precisely controlled by the control system, the diameter, depth, number, and distribution of the de-weighting holes can be strictly executed according to the process specifications, no longer relying on the operator's experience, thus ensuring the consistency and high precision of the de-weighting quality.

[0101] Compared to existing technologies, the turbine deweighting equipment in this embodiment significantly reduces manual intervention. Traditional methods require manual operation for steps such as weighing, sorting, marking, and alignment. This equipment, through automated positioning and deweighting, drastically reduces the rework rate from 20%. Simultaneously, addressing the high-risk issues of thin-walled / hollow blades, this equipment effectively avoids stress concentration and structural damage by precisely controlling the motion parameters of the deweighting actuator 304 and the rotational speed of the rotating module 303, thus ensuring the fatigue life of the turbine 40. Furthermore, the standardized deweighting process ensures consistent deweighting quality across different batches of turbines 40, reliably meeting the stringent aerospace-grade requirement of ≤0.1 g.

[0102] Through the above technical solution, this embodiment effectively solves the shortcomings of existing turbine deweight removal technology in terms of precision control, efficiency, structural adaptation and process compatibility, and provides reliable technical support for turbine deweight removal in high-end equipment.

[0103] This embodiment further proposes the above-mentioned turbine weight removal device, wherein the motion module includes a first linear motion module 301 and a second linear motion module 302 connected to the movable part of the first linear motion module 301; the rotation module 303 is connected to the movable part of the second linear motion module 302.

[0104] The first linear motion module 301 is a mechanical module capable of linear motion in a single direction, serving to provide macroscopic positioning capability for the weight-removing actuator 304 in a certain dimension. This first linear motion module 301 can be implemented based on a linear slide driven by a lead screw and stepper motor, or a linear guide system driven by a rack and pinion and servo motor, or a linear guide driven by a cylinder or hydraulic cylinder. The second linear motion module 302 is also a mechanical module capable of linear motion in a single direction, but its moving part is connected to the first linear motion module 301 to form a composite motion. Its function is to provide fine positioning capability for the weight-removing actuator 304 in another dimension, based on the first linear motion module 301, thereby achieving two-dimensional motion in a plane. The second linear motion module 302 can be installed perpendicularly to the first linear motion module 301, and can also employ a linear slide driven by a lead screw, rack and pinion, or pneumatic / hydraulic power, or a magnetic levitation guide system to achieve high-precision, frictionless linear motion. The rotating module 303 is connected to the movable part of the second linear motion module 302 to ensure that the rotating module 303 can move linearly with the second linear motion module 302. This allows the weight-relief actuator 304 to rotate after completing planar positioning, thus meeting the weight-relief requirements of the turbine 40. This connection can be achieved by fixing the base of the rotating module 303 to the movable slider of the second linear motion module 302 using mechanical fasteners such as bolts and pins, or by using mating structures such as dovetail grooves and T-slots, enabling quick installation and disassembly while ensuring the stability and accuracy of the connection.

[0105] The solution in this embodiment refines the motion module into a combination of a first linear motion module 301 and a second linear motion module 302, and connects the rotation module 303 with the moving part of the second linear motion module 302, thereby constructing a multi-degree-of-freedom de-weighting actuator 304 positioning system.

[0106] Specifically, the first linear motion module 301 provides the weight-removing actuator 304 with a wide range of movement in one main direction, such as the X-axis. Building upon this, the moving part of the second linear motion module 302 connects to the moving part of the first linear motion module 301, providing the weight-removing actuator 304 with movement in another direction, such as the Z-axis, thus jointly achieving precise movement of the weight-removing actuator 304 within the plane. This layered linear motion module configuration allows the weight-removing actuator 304 to cover the entire weight-removing area of ​​the turbine 40 and reach any designated position.

[0107] Simultaneously, the rotary module 303 is mounted on the movable part of the second linear motion module 302, meaning that the rotary module 303 can move linearly together with the second linear motion module 302. When the weight-removing actuator 304 is precisely positioned above a certain weight-removing point of the turbine 40, the rotary module 303 can drive the weight-removing actuator 304 to rotate to adapt to the weight-removing requirements at different angles on the turbine 40, such as removing weight from the turbine blade edges or grooves at specific angles. This multi-axis linkage significantly improves the spatial accessibility and attitude adjustment capability of the weight-removing actuator 304, making the weight-removing operation more flexible and precise. It can effectively cope with the weight-removing challenges of the complex curved surfaces and irregular shapes of the turbine 40, thereby overcoming the problem of insufficient positioning accuracy and flexibility of a single motion module in complex weight-removing tasks.

[0108] This embodiment also proposes a deduplication method, including the following steps:

[0109] Place the turbine 40 on the second rotating shaft 201, start the lifting drive source, drive the pressure head 106 to approach and press the turbine 40; start the motion module, adjust the weight removal actuator 304 to align with the turbine 40; at the same time start the rotation module 303 and the rotation drive source 203, the rotation drive source 203 drives the rotating seat 202 to rotate, driving the second rotating shaft 201 to rotate, and the rotation module 303 drives the weight removal actuator 304 to remove weight from the turbine 40.

[0110] Specifically, placing the turbine 40 on the second rotating shaft 201 is the initial step of the weight removal operation. This step aims to ensure that the turbine 40 to be processed is correctly positioned on the core positioning component of the weight removal equipment, providing a stable foundation for subsequent compaction and weight removal operations. This placement process can be completed manually or using automated robotic arms or conveyor belts to precisely place the turbine 40 onto the top or positioning surface of the second rotating shaft 201, ensuring that the center of the turbine 40 is aligned with the rotation center of the second rotating shaft 201.

[0111] Subsequently, the lifting drive source is activated, driving the pressure head 106 to approach and press against the turbine 40. This step aims to axially fix the positioned turbine 40 through the pressing follower mechanism 10, preventing displacement or vibration during the weight removal process, thereby improving weight removal accuracy and stability. The lifting drive source can be in the form of a cylinder, hydraulic cylinder, or servo motor with a lead screw. When the lifting drive source is activated, it drives the sliding seat 101, base 104, and pressure head 106 downward. The pressure head 106 typically has a structure that matches the shape of the top of the turbine 40, such as a cone or a flat surface, to ensure uniform and stable pressing force. The magnitude of the pressing force can be adjusted through the parameters of the drive source to accommodate turbines 40 of different sizes and materials.

[0112] Next, the motion module is activated, and the de-weighting actuator 304 is aligned with the turbine 40. This step is to precisely move the de-weighting actuator 304 to the specific position on the turbine 40 where the de-weighting operation needs to be performed, preparing for subsequent material removal. The motion module may include multiple linear motion axes, such as the X-axis and Z-axis. Activating the motion module means activating its drive motor, which, through the control system, precisely calculates and executes movement commands, causing the de-weighting actuator 304 to be positioned along a preset path or directly to the area of ​​the turbine 40 to be de-weighted. The alignment process can be performed using a vision recognition system, a laser sensor, or preset coordinate data.

[0113] The simultaneous activation of the rotating module 303 and the rotating drive source 203 is the core of the weight removal operation. It simultaneously activates the rotation of the turbine 40 and the weight removal actuator 304 (if the weight removal actuator itself needs to rotate), to achieve dynamic weight removal on one side of the turbine 40. The rotating drive source 203 is typically a high-precision servo motor, whose output shaft is connected to the rotating base 202 via a coupling or transmission module (such as a synchronous belt or gear set). A second rotating shaft 201 is mounted inside or on the rotating base 202. When the rotating drive source 203 receives a start command, it drives the rotating base 202 according to a preset speed and acceleration curve, thereby causing the second rotating shaft 201 and the turbine 40 pressed on it to rotate synchronously. At the same time, the rotating module 303 (e.g., an independent servo motor or pneumatic rotating mechanism) drives the weight removal actuator 304 to rotate at an appropriate speed and direction. The synchronous activation and coordination of these two rotations are crucial to ensuring weight removal efficiency and accuracy.

[0114] Finally, the rotary module 303 drives the weight-removing actuator 304 to remove weight from the turbine 40. The weight-removing actuator 304 can be a milling cutter, grinding head, drill bit, etc., the selection of which depends on the material of the turbine 40 and the amount to be removed. The rotary module 303 provides rotational power to it, causing it to rotate at high speed. When the weight-removing actuator 304, under the control of the motion module, contacts the high-speed rotating turbine 40, it removes excess material through cutting, grinding, or drilling, thereby adjusting the mass distribution of the turbine 40 and achieving dynamic balance. The depth and position of weight removal are determined by the precise control of the motion module and the rotary module 303.

[0115] The solution in this embodiment systematically integrates the placement and clamping of the turbine 40, the alignment of the weight-removing actuator 304, and the synchronous rotation of the turbine 40 and the weight-removing actuator 304 to remove weight.

[0116] Through the aforementioned weight removal method, the placement and clamping of the turbine 40, the alignment of the weight removal actuator 304, and the synchronous rotation of the turbine 40 and the weight removal actuator 304 are systematically integrated. This coordinated operating procedure ensures that the turbine 40 remains in a stable and precise positioning state throughout the weight removal process, effectively avoiding weight removal errors caused by loosening or inaccurate positioning of the turbine 40. Simultaneously, by precisely controlling the motion module and rotation module 303, the weight removal actuator 304 can accurately act on the designated area of ​​the turbine 40, achieving efficient and high-precision material removal. This significantly improves the automation level and weight removal accuracy of the turbine weight removal operation, reduces the complexity and potential errors of manual operation, thereby improving production efficiency and product quality.

[0117] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A turbine weight-removing positioning mechanism, characterized in that, include: The pressing follower mechanism (10) includes a lifting drive source, a sliding seat (101) connected to the working end of the lifting drive source, a base (104) fixedly connected to the sliding seat (101), a first rotating shaft (105) rotatably connected to the base (104), and a pressure head (106) disposed at one end of the first rotating shaft (105) away from the base (104). The active rotation mechanism (20) includes a rotation drive source (203), a rotation seat (202) connected to the output end of the rotation drive source (203), and a second rotating shaft (201) disposed on the rotation seat (202). The second rotating shaft (201) initially positions the turbine (40), and the lifting drive source drives the pressure head (106) to approach the second rotating shaft (201) and press the turbine (40).

2. The turbine weight-removing positioning mechanism according to claim 1, characterized in that, The pressing follower mechanism (10) also includes a dust hood (103) that is floatingly connected to the sliding seat (101); the dust hood (103) is configured to cover the pressure head (106) and at least part of the base (104).

3. The turbine weight-removing positioning mechanism according to claim 2, characterized in that, The dust collection hood (103) has two notches on the side near the rotating seat (202), one of which is used to connect the negative pressure device and the other of which is used to insert the weight removal actuator (304).

4. The turbine weight-removing positioning mechanism according to claim 2, characterized in that, The pressing follower mechanism (10) further includes at least one floating module (102) installed on the sliding seat (101); the floating module (102) is configured to absorb the impact energy when the dust cover (103) contacts the rotating seat (202) and reduce the transmission of vibration to the rotating seat (202).

5. The turbine weight-removing positioning mechanism according to claim 4, characterized in that, The floating module (102) includes a guide rod with both ends fixedly connected to the sliding seat (101) and an elastic element sleeved on the guide rod; one end of the elastic element abuts against the sliding seat (101) and the other end abuts against the dust cover (103).

6. The turbine weight-removing positioning mechanism according to claim 1, characterized in that, The rotary drive source (203) and the rotary seat (202) are connected by a transmission module.

7. The turbine weight-removing positioning mechanism according to claim 6, characterized in that, The transmission module includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt; the synchronous belt is tensioned between the first synchronous pulley and the second synchronous pulley, and the output end of the rotary drive source (203) is connected to the first synchronous pulley, with the first synchronous pulley and the second synchronous pulley located on the same horizontal plane.

8. A turbine-based weight removal device, characterized in that, include: The turbine de-weighting and positioning mechanism as described in any one of claims 1-7; The de-weighting mechanism (30) is located on one side of the turbine de-weighting positioning mechanism; the de-weighting mechanism (30) includes a motion module, a rotating module (303) connected to the movable part of the motion module, and a de-weighting actuator (304) connected to the output end of the rotating module (303); the motion module is configured to move in the horizontal and / or vertical direction; the de-weighting actuator (304) de-weights the turbine (40).

9. The turbine de-weighting device according to claim 8, characterized in that, The motion module includes a first linear motion module (301) and a second linear motion module (302) connected to the movable part of the first linear motion module (301); the rotation module (303) is connected to the movable part of the second linear motion module (302).

10. A method for removing duplicates, characterized in that, The turbine weight removal device as described in claim 8 or 9 includes the following steps: Place the turbine (40) on the second rotating shaft (201), start the lifting drive source, and drive the pressure head (106) to approach and press the turbine (40). Start the motion module and adjust the weight removal actuator (304) to align with the turbine (40); at the same time, start the rotation module (303) and the rotation drive source (203). The rotation drive source (203) drives the rotating seat (202) to rotate, which in turn drives the second rotating shaft (201) to rotate. The rotation module (303) drives the weight removal actuator (304) to remove weight from the turbine (40).

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