A machining device for a titanium alloy turbine blade airfoil

Abstract

A kind of machining device of titanium alloy turbine blade airfoil, it relates to the field of aero-engine parts machining technology, including base, bed saddle, suspender, lifting platform, milling spindle, processing cutter, blade clamp, pipe clamp and pressure circulation cooling assembly;Pressure circulation cooling assembly includes spindle sleeve combination board, cooling liquid pressure spray head, spray head hose, cooling liquid negative pressure suction head, suction head hose, combined filter, pump station, cooling liquid container and infrared thermometer.Spindle sleeve combination board is fixedly installed on the outside of milling spindle, cooling liquid pressure spray head, cooling liquid negative pressure suction head and infrared thermometer are all installed on spindle sleeve combination board, and move synchronously with milling spindle, realize the continuous injection cooling of processing area, liquid accumulation negative pressure recovery and temperature real-time detection, and the recovered cooling liquid is filtered after combined filter and re-enters cooling liquid container to recycle, solve the problem that cooling liquid is easy to accumulate in blade arc region in the process of titanium alloy turbine blade complex curved surface machining.

Description

Technical Field

[0001] This invention belongs to the field of engine component processing technology, specifically referring to a processing device for titanium alloy turbine blade profiles. Background Technology

[0002] Titanium alloys are widely used in the manufacture of compressor blades, turbine blades, and other high-performance rotating components for aero-engines due to their high specific strength, high temperature resistance, corrosion resistance, and excellent fatigue resistance. However, because titanium alloys have low thermal conductivity, cutting heat is not easily conducted during machining, and the material has high chemical reactivity, high cutting temperatures are easily generated during high-speed milling. This leads to accelerated tool wear, decreased blade surface quality, and reduced dimensional accuracy. Therefore, a large amount of coolant is usually required for continuous cooling of the machining area.

[0003] Most existing titanium alloy blade machining equipment uses fixed nozzles to directly spray coolant into the machining area to reduce the temperature of the cutting tool and workpiece. However, aero-engine turbine blades have large twist angles and complex free-form surface structures. Especially in areas with large curvature, such as the suction surface, pressure surface, and leading and trailing edges, the coolant is easily affected by the blade's surface shape, leading to coolant accumulation. When the coolant accumulates, it not only hinders the direct entry of freshly sprayed coolant into the cutting area, reducing cooling efficiency, but the high-speed rotating tool can also easily scatter the accumulated coolant, creating splashes that affect the machining environment and subsequent cleaning. Furthermore, the accumulated coolant covering the machining area can obstruct infrared temperature measurement devices, causing inaccuracies in temperature detection and affecting the cooling system's regulation. In addition, existing equipment typically lacks an active coolant recovery structure, relying heavily on natural flow for coolant recovery, resulting in low circulation efficiency. Chips mixed in the coolant can easily enter the circulation system, increasing the filtration burden and affecting the long-term stable operation of the cooling system. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a processing apparatus for titanium alloy turbine blade profiles, so as to at least partially solve the above-mentioned technical problems.

[0005] The technical solution adopted by this invention is as follows: This invention proposes a machining device for titanium alloy turbine blade profiles, including a base, a saddle, a cantilever beam, a lifting platform, a milling spindle, machining tools, a blade clamp, a pipe clamp, and a pressure circulating cooling assembly; the saddle is fixedly mounted on the base, the cantilever beam is movably mounted on the base, the lifting platform is movably mounted on the cantilever beam, the milling spindle is fixedly mounted on the lifting platform, the machining tools are fixedly mounted on the output end of the milling spindle, the blade clamp is fixedly mounted on the saddle for clamping the titanium alloy turbine blade to be machined, and the pipe clamp is mounted on the lifting platform; the pressure circulating cooling assembly includes... The system includes a spindle sleeve plate, a coolant pressure nozzle, a nozzle hose, a coolant negative pressure suction head, a suction head hose, a combined filter, a pump station, a coolant container, and an infrared thermometer. The spindle sleeve plate is fixedly installed on the outside of the milling spindle. The coolant pressure nozzle, coolant negative pressure suction head, and infrared thermometer are all installed on the spindle sleeve plate. One end of the nozzle hose is connected to the coolant pressure nozzle, and the other end is connected to the pump station via a pipe clamp. One end of the suction head hose is connected to the coolant negative pressure suction head, and the other end is connected to the combined filter and the pump station in sequence. The pump station is connected to the coolant container to form a coolant circulation loop.

[0006] Furthermore, the spindle sleeve plate is fixedly sleeved on the outer periphery of the milling spindle, and the coolant pressure nozzle and coolant negative pressure suction nozzle are respectively located on the periphery of the machining tool and are set towards the cutting area of ​​the tool along the axial direction of the machining tool, so that the spray direction of the coolant pressure nozzle and the suction direction of the coolant negative pressure suction nozzle work together on the machining area between the machining tool and the titanium alloy turbine blade.

[0007] Furthermore, the nozzle hose and the suction hose are fixed to the lifting platform by pipe clamps, so that the nozzle hose and the suction hose move synchronously with the lifting platform and maintain a stable relative position with the milling spindle.

[0008] Furthermore, the pump station is used to transport the coolant in the coolant container to the coolant pressure nozzle, and the coolant negative pressure suction head is used to transport the coolant in the processing area through the suction head hose to the combined filter. The coolant filtered by the combined filter flows back to the coolant container, forming a cooling circuit that integrates pressure injection, negative pressure recovery and filtration circulation.

[0009] Furthermore, an infrared thermometer is mounted on the spindle sleeve plate, with its detection direction facing the machining area between the machining tool and the titanium alloy turbine blades to detect the surface temperature of the machining area in real time.

[0010] Furthermore, the infrared thermometer is electrically connected to the pump station. When the infrared thermometer detects that the temperature in the processing area has reached a preset value, it controls the pump station to increase the coolant delivery flow rate, thereby enhancing the spray pressure of the coolant pressure nozzle and simultaneously increasing the suction capacity of the coolant negative pressure suction head.

[0011] Furthermore, the coolant pressure nozzle sprays towards the cutting area between the machining tool and the titanium alloy turbine blade held by the blade holder, and the coolant negative pressure suction head is located downstream of the coolant pressure nozzle spraying direction to synchronously recover the liquid accumulated on the blade surface.

[0012] Furthermore, a combined filter is installed between the suction head hose and the pump station to filter metal shavings and impurities in the recovered coolant.

[0013] Furthermore, the suspension beam drives the lifting platform and milling spindle to move relative to the saddle, so that the machining tool performs blade profile machining on the titanium alloy turbine blade held by the blade fixture along a preset trajectory. The pressure circulation cooling component always moves synchronously with the milling spindle and maintains continuous cooling and liquid recovery of the machining area.

[0014] Furthermore, during the processing, the coolant pressure nozzle continuously sprays coolant into the processing area, while the coolant negative pressure suction head simultaneously recovers the liquid accumulated on the curved surface of the blades. The recovered coolant is then recycled through a combined filter, pump station, and coolant container.

[0015] Compared with the prior art, the present invention has the following advantages: By installing a pressure circulation cooling assembly on the outside of the milling spindle, the coolant pressure nozzle, coolant negative pressure suction head, and infrared thermometer all move synchronously with the milling spindle, ensuring that the spray cooling position, liquid accumulation recovery position, and temperature detection position always correspond to the cutting area of ​​the machining tool. During machining, the coolant pressure nozzle continuously sprays coolant onto the cutting area of ​​the tool, while the coolant negative pressure suction head simultaneously recovers the liquid accumulated on the complex curved surface of the blade. This maintains a continuous flow in the machining area, avoiding the formation of large amounts of liquid in the curved area of ​​the blade as in traditional spraying methods. This improves the coolant renewal rate and heat dissipation efficiency in the machining area, effectively reducing the machining temperature of titanium alloys, increasing tool life, and improving blade machining quality.

[0016] A circulation loop is formed by combining filters, pump stations, and coolant containers. The recovered coolant undergoes multi-stage filtration and is reused, reducing coolant consumption and lowering the likelihood of chips entering the circulation system and clogging the nozzles, thus improving the system's operational stability. Simultaneously, because accumulated liquid in the machining area is promptly recovered, infrared thermometers can more accurately detect the temperature in the blade machining area and adjust the coolant circulation capacity based on temperature changes, ensuring the machining area maintains a suitable machining temperature. This improves the stability, machining accuracy, and automation level of the titanium alloy turbine blade profile machining process. Attached Figure Description

[0017] Figure 1 This is a perspective view of the processing apparatus for titanium alloy turbine blade profiles proposed in an embodiment of the present invention; Figure 2 This is a front view of the processing apparatus for titanium alloy turbine blade profiles proposed in an embodiment of the present invention; Figure 3 This is a rear view of the processing apparatus for titanium alloy turbine blade profiles proposed in an embodiment of the present invention; Figure 4 This is a top view of the processing apparatus for titanium alloy turbine blade profiles proposed in an embodiment of the present invention; Figure 5 This is a left view of the processing apparatus for titanium alloy turbine blade profiles proposed in an embodiment of the present invention; Figure 6 for Figure 5 A magnified view of point I in the middle.

[0018] Among them, 100, base; 101, saddle; 102, cantilever beam; 103, lifting platform; 104, milling spindle; 105, machining tool; 106, blade clamp; 107, pipe clamp; 200, pressure circulation cooling assembly; 201, spindle sleeve plate; 202, coolant pressure nozzle; 203, nozzle hose; 204, coolant negative pressure suction head; 205, suction head hose; 206, combined filter; 207, pump station; 208, coolant container; 209, infrared thermometer.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1-6As shown, this embodiment provides a machining device for titanium alloy turbine blade profiles, including a base 100, a saddle 101, a cantilever beam 102, a lifting platform 103, a milling spindle 104, a machining tool 105, a blade fixture 106, a pipe clamp 107, and a pressure circulation cooling assembly 200. The bed saddle 101 is fixedly mounted on the base 100, providing a stable mounting base for the blade clamp 106; the cantilever beam 102 is movably mounted on the base 100 and can move along the guide rail of the base 100; the lifting platform 103 is movably mounted on the cantilever beam 102 and can move up and down along the cantilever beam 102; the milling spindle 104 is fixedly mounted on the lifting platform 103, and the output end of which is equipped with the machining tool 105; the blade clamp 106 is fixedly mounted on the bed saddle 101 and is used to clamp the titanium alloy turbine blade to be processed; the pipe clamp 107 is installed on the outside of the lifting platform 103 and is used to fix and guide the nozzle hose 203 and the suction hose 205, so that the two hoses can move synchronously with the lifting platform 103 and avoid swinging, tangling or interference with moving parts during processing.

[0023] The base 100 adopts an integral welded frame structure and undergoes aging treatment to eliminate internal stress. Its length is preferably 2500–4500 mm, and its width is preferably 1200–2200 mm to ensure sufficient rigidity and stability of the entire machine. The saddle 101 is fixed to the top of the base 100 and is equipped with high-precision linear guides and ball screw pairs to support the blade fixture 106 and ensure machining positioning accuracy. The cantilever beam 102 adopts a box-beam structure, with both ends mounted on guide rails on both sides of the base 100, and achieves lateral movement through a servo drive mechanism. The lifting platform 103 is installed on the front side of the cantilever beam 102 and can move vertically upwards and downwards. Its stroke is preferably 400–1000 mm to accommodate the machining requirements of blades of different specifications. The milling spindle 104 is a high-speed electric spindle with a rated speed preferably of 8000 to 24000 r / min. Different speeds can be selected according to different machining processes. The machining tool 105 is installed at the end of the tool holder of the milling spindle 104 and can be a solid carbide end mill, ball end mill, or other tools suitable for machining titanium alloy blade profiles.

[0024] The blade clamp 106 is used to fix the titanium alloy turbine blade of the aero-engine. Its clamping position corresponds to the tenon part of the blade to avoid clamping deformation of the blade body. The blade clamp 106 can replace the corresponding positioning block according to different blade models to ensure that blades of different specifications can be accurately positioned. During the machining process, the blade clamp 106 remains stationary, and the movement of the tool relative to the blade is completed by the cantilever beam 102, the lifting table 103 and the milling spindle 104 to realize the blade profile machining.

[0025] To overcome the problem of coolant accumulation on the curved surface of blades during existing liquid cooling processes, this embodiment incorporates a pressure circulation cooling assembly 200. The pressure circulation cooling assembly 200 includes a spindle sleeve plate 201, a coolant pressure nozzle 202, a nozzle hose 203, a coolant negative pressure suction head 204, a suction head hose 205, a combined filter 206, a pump station 207, a coolant container 208, and an infrared thermometer 209. The spindle sleeve plate 201 is fixedly mounted on the outside of the milling spindle 104 and moves as a whole with the milling spindle 104. The coolant pressure nozzle 202, the coolant negative pressure suction head 204, and the infrared thermometer 209 are all mounted on the spindle sleeve plate 201. Therefore, the relative positions of these three components with the machining tool 105 remain constant and will not shift due to the up-and-down movement of the lifting platform 103, thus ensuring that cooling, recovery, and temperature measurement always correspond to the machining area.

[0026] The spindle sleeve plate 201 adopts a ring-shaped mounting structure, with its inner side tightly fitting the outer wall of the milling spindle 104 and fixed to the outside of the milling spindle 104 by bolts. The spindle sleeve plate 201 is preferably made of high-strength aluminum alloy or stainless steel, ensuring sufficient rigidity while reducing the weight of moving parts. A coolant pressure nozzle 202 is installed at the front end of the spindle sleeve plate 201, with its spray direction directed towards the machining tool 105 and the blade machining area. The spray angle is preferably at an angle of 20° to 45° with the tool axis, allowing the coolant to spread along the blade surface and fully enter the tool cutting area, improving heat exchange efficiency.

[0027] The coolant pressure nozzle 202 is connected to the pump station 207 via a nozzle hose 203. The nozzle hose 203 is arranged along the lifting platform 103 and fixed by a pipe clamp 107 to prevent the hose from swaying due to high-speed movement. The pump station 207 is connected to the coolant container 208, which stores circulating coolant. The pump station 207 pressurizes the coolant in the coolant container 208 and delivers it to the coolant pressure nozzle 202 via the nozzle hose 203 to form continuous and stable pressure jet cooling.

[0028] The coolant negative pressure suction head 204 is mounted on the spindle sleeve plate 201. Its suction inlet is located downstream of the coolant pressure nozzle 202 in the spray direction and faces the arc-shaped area of ​​the blade surface. When the coolant pressure nozzle 202 sprays coolant into the machining area, the coolant flows along the complex curved surface of the blade, easily forming liquid accumulation in areas with large curvature changes such as the suction surface, pressure surface, leading edge, and trailing edge of the blade. The coolant negative pressure suction head 204 can promptly suck up the accumulated liquid before it accumulates in large quantities, ensuring continuous flow in the machining area. The coolant negative pressure suction head 204 is connected to the combined filter 206 via a suction head hose 205. The suction head hose 205 is also fixed to the lifting platform 103 by a pipe clamp 107, moving synchronously with the nozzle hose 203 to ensure that the suction head always maintains the optimal retrieval position.

[0029] A combined filter 206 is installed between the suction head hose 205 and the pump station 207. The recovered coolant first enters the combined filter 206 for filtration. Inside the combined filter 206, a coarse filtration unit and a fine filtration unit are sequentially arranged. The coarse filtration unit removes larger titanium alloy chips and impurities, while the fine filtration unit further removes fine particles, thus ensuring that the coolant returning to the coolant container 208 maintains a high level of cleanliness, reducing nozzle clogging, and improving the coolant's circulation lifespan. The filtered coolant flows back into the coolant container 208 and is then pumped by the pump station 207 to the coolant pressure nozzle 202, achieving coolant recycling.

[0030] Infrared thermometer 209 is installed on the front side of spindle sleeve plate 201, and its detection direction is always towards the contact area between the machining tool 105 and the blade, enabling real-time detection of the surface temperature of the machining area. Because the coolant negative pressure suction head 204 continuously recovers the liquid accumulated on the blade surface, it prevents the formation of a large liquid film in the machining area. Therefore, the infrared thermometer 209 can reduce temperature detection errors caused by liquid film obstruction and improve temperature measurement accuracy. The infrared thermometer 209 is electrically connected to pump station 207. When the detected temperature is below a preset temperature value, pump station 207 maintains a basic flow rate output. When the detected temperature reaches the first preset temperature value, pump station 207 increases the coolant delivery flow rate to increase the spray pressure of the coolant pressure nozzle 202. When the detected temperature further rises to the second preset temperature value, pump station 207 continues to increase the circulation flow rate and simultaneously increases the suction capacity of the coolant negative pressure suction head 204, accelerating the coolant flow speed in the machining area and causing the temperature in the machining area to drop rapidly. This avoids work hardening of the titanium alloy and accelerated tool wear caused by localized high temperatures.

[0031] During processing, the titanium alloy turbine blade to be processed is first positioned and clamped on the blade fixture 106. The corresponding machining tool 105 is then installed according to the blade model, and circulating coolant is added to the coolant container 208. After the equipment is started, the pump station 207 operates first, delivering coolant to the coolant pressure nozzle 202. Simultaneously, the coolant negative pressure suction head 204 establishes a negative pressure recovery state, and the infrared thermometer 209 begins real-time monitoring of the processing area temperature. When the milling spindle 104 drives the machining tool 105 to perform blade shaping, the coolant pressure nozzle 202 continuously sprays high-pressure coolant into the cutting area of ​​the tool, rapidly cooling the tool and blade. As the coolant flows along the blade's curved surface, the coolant negative pressure suction head 204 simultaneously draws the accumulated coolant and coolant carrying chips from the blade surface into the suction head hose 205. After filtration by the combined filter 206, the coolant returns to the coolant container 208 and is then pumped back to the coolant pressure nozzle 202 by the pump station 207, achieving continuous recycling of the coolant. Throughout the entire machining process, the pressure circulating cooling assembly 200 always moves synchronously with the milling spindle 104, ensuring that the coolant spray position, liquid accumulation recovery position, and temperature measurement position always correspond to the tool machining area. Even when machining complex twisted blade profiles, it can promptly eliminate liquid accumulation in the curved area of ​​the blade, improve the coolant renewal rate, ensure that the tool cutting area is continuously in a state of efficient heat exchange, reduce coolant splashing, improve the detection accuracy of the infrared thermometer 209, and further improve the machining accuracy of the titanium alloy turbine blade profile, tool life, and overall machining stability.

[0032] 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 process, method, article, or apparatus.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A processing apparatus for titanium alloy turbine blade profiles, characterized in that: It includes a base (100), a saddle (101), a cantilever beam (102), a lifting platform (103), a milling spindle (104), a machining tool (105), a blade clamp (106), a pipe clamp (107), and a pressure circulation cooling assembly (200). The saddle (101) is fixedly installed on the base (100), the cantilever beam (102) is movably installed on the base (100), the lifting platform (103) is movably installed on the cantilever beam (102), the milling spindle (104) is fixedly installed on the lifting platform (103), the machining tool (105) is fixedly installed on the output end of the milling spindle (104), the blade clamp (106) is fixedly installed on the saddle (101) for clamping the titanium alloy turbine blade to be processed, and the pipe clamp (107) is installed on the lifting platform (103). The pressure circulation cooling assembly (200) includes a spindle sleeve plate (201), a coolant pressure nozzle (202), a nozzle hose (203), a coolant negative pressure suction head (204), a suction head hose (205), a combined filter (206), a pump station (207), a coolant container (208), and an infrared thermometer (209). The spindle sleeve plate (201) is fixedly installed on the outside of the milling spindle (104). The coolant pressure nozzle (202), the coolant negative pressure suction nozzle (204) and the infrared thermometer (209) are all installed on the spindle sleeve plate (201). One end of the nozzle hose (203) is connected to the coolant pressure nozzle (202), and the other end is connected to the pump station (207) via the pipe clamp (107). One end of the suction hose (205) is connected to the coolant negative pressure suction head (204), and the other end is connected to the combined filter (206) and the pump station (207) in sequence. The pump station (207) is connected to the coolant container (208) to form a coolant circulation loop.

2. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The spindle sleeve plate (201) is fixedly sleeved on the outer periphery of the milling spindle (104). The coolant pressure nozzle (202) and the coolant negative pressure suction head (204) are respectively located on the periphery of the machining tool (105) and are arranged along the axial direction of the machining tool (105) toward the cutting area of ​​the tool, so that the spray direction of the coolant pressure nozzle (202) and the suction direction of the coolant negative pressure suction head (204) work together on the machining area between the machining tool (105) and the titanium alloy turbine blade.

3. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The nozzle hose (203) is fixed to the lifting platform (103) by a pipe clamp (107), and the suction hose (205) is fixed to the lifting platform (103) by a pipe clamp (107), so that the nozzle hose (203) and the suction hose (205) move synchronously with the lifting platform (103) and maintain a stable relative position with the milling spindle (104).

4. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The pump station (207) is used to transport the coolant in the coolant container (208) to the coolant pressure nozzle (202), and the coolant negative pressure suction head (204) is used to transport the coolant in the processing area through the suction head hose (205) to the combined filter (206). The coolant filtered by the combined filter (206) flows back to the coolant container (208), forming a cooling circuit integrating pressure injection, negative pressure recovery and filtration circulation.

5. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The infrared thermometer (209) is mounted on the spindle sleeve plate (201) and its detection direction is towards the machining area between the machining tool (105) and the titanium alloy turbine blade for real-time detection of the surface temperature of the machining area.

6. The processing apparatus for titanium alloy turbine blade profiles according to claim 5, characterized in that: The infrared thermometer (209) is electrically connected to the pump station (207). When the infrared thermometer (209) detects that the temperature of the processing area reaches the preset value, it controls the pump station (207) to increase the flow rate of coolant to enhance the spray pressure of the coolant pressure nozzle (202) and simultaneously improve the suction capacity of the coolant negative pressure suction head (204).

7. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The spray direction of the coolant pressure nozzle (202) is toward the cutting area between the machining tool (105) and the titanium alloy turbine blade held by the blade holder (106). The coolant negative pressure suction head (204) is located downstream of the spray direction of the coolant pressure nozzle (202) to synchronously recover the liquid accumulated on the blade surface.

8. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The combined filter (206) is located between the suction head hose (205) and the pump station (207) and is used to filter metal chips and impurities in the recovered coolant.

9. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: The suspension beam (102) drives the lifting platform (103) and the milling spindle (104) to move relative to the saddle (101), so that the machining tool (105) performs blade profile machining on the titanium alloy turbine blade held by the blade fixture (106) along a preset trajectory. The pressure circulation cooling assembly (200) always moves synchronously with the milling spindle (104) and maintains continuous cooling and liquid recovery of the machining area.

10. The processing apparatus for titanium alloy turbine blade profiles according to claim 1, characterized in that: During the processing, the coolant pressure nozzle (202) continuously sprays coolant into the processing area, and the coolant negative pressure suction head (204) simultaneously recovers the liquid accumulated on the blade surface. The recovered coolant is recycled through the combined filter (206), pump station (207) and coolant container (208).

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