Titanium alloy thin-wall part machining lathe

Abstract

The invention relates to the technical field of thin-wall part machining, in particular to a titanium alloy thin-wall part machining lathe which comprises a machine tool, a cylindrical component is connected to the interior of the machine tool through bolts, a workpiece is arranged at one end of the cylindrical component, and a hydraulic air cylinder is fixedly connected to the center of the interior of the cylindrical component. According to the double-point floating clamp, the double-point floating clamp is rotationally connected to the two sides of the interior of the symmetrical rotating arm through the rotating shaft, so that the double-point floating clamp can be rotationally adjusted in a small range when making contact with the outer surface of a workpiece, and the double-point floating clamp can be adjusted in a large range when making contact with the outer surface of the workpiece; the outer surfaces of the two small cylinders can be gradually attached to the curved surface of the outer surface of the workpiece under the action of the structure of the small cylinders, double-point contact is formed, the clamping force is dispersed, it is guaranteed that the clamping force is evenly distributed on the outer surface of the workpiece, the clamping force is prevented from being concentrated on a single linear contact area, and local stress unbalance is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of thin-walled parts processing, in particular to a lathe for processing titanium alloy thin-walled parts. Background Art

[0002] As the core equipment for manufacturing mechanical parts, the core function of the metal-like cutting lathe is to control the cutting path of the fixed tool through the spindle and the tool feed system, and accurately process cylindrical, conical or complex rotating metal parts that meet the form and position tolerance requirements such as roundness and cylindricity. The operator controls the radial and axial movement path and feed amount of the tool through the CNC system or manual feed mechanism to achieve material removal. The equipment strictly follows the technical specifications of lathes, can stably process shafts and disc sleeves, meet the processing accuracy requirements, and is adaptable to both single-piece trial production and mass production.

[0003] After searching, according to the publication number CN222944994U, a clamping tool for machining mechanical parts is disclosed, which includes a base, the top surface of the base is provided with four sliding holes, the inner side walls of the four sliding holes are slidably connected with a slider 1, and threaded rods 1 are threadedly installed on both sides of the base, one end of the two threaded rods 1 is connected to the slider 1 from the outside of the base, and one end of the two threaded rods 1 is connected to the other side of the base from one side of the slider 1, and the top surfaces of the two sliders 1 are fixedly installed with a support block 1; this application places the mechanical parts on the base, and by rotating the two threaded rods 1, the slider 1 moves along the sliding hole of the base.

[0004] Since the opening angles of the arc blocks on both sides of the above-mentioned device are fixed and it needs to rely on the flat clamping block for auxiliary positioning, the clamping force applied during the clamping process is not only difficult to be evenly distributed on the periphery of the tube wall, but on the contrary, the force is easily concentrated in a few contact areas, especially the contact surface between the flat clamping block and the workpiece. The contact surface between the flat clamping block and the tubular part is a single linear surface, and the part is prone to plastic deformation at these local stress points. The direct manifestation is that the tube is crushed and the cross-section changes from a circle to an ellipse. In addition, this uneven clamping may also leave indentations on the surface of the workpiece or cause slight bending of the whole.

[0005] Based on this, the present invention discloses a lathe for processing titanium alloy thin-wall parts. Summary of the Invention

[0006] In order to solve the problem in the prior art that the combination of the fixed-angle arc block and the flat clamp block in the existing device is difficult to fit tightly against the outer wall of the tubular part, the contact surface is small and unevenly distributed, and it is difficult to form an effective annular package, the present invention provides a titanium alloy thin-walled part processing lathe, comprising a machine tool, a cylindrical component is bolted inside the machine tool, and a workpiece is provided at one end of the cylindrical component, a hydraulic cylinder is fixedly connected to the center of the cylindrical component, and a plurality of linkage rods are provided on the outer wall of the telescopic end of the hydraulic cylinder, a central slide rail is fixedly connected to the center of the outer wall of the cylindrical component, and a through groove is provided at the center of the top surface of the central slide rail, and a plurality of sliding components are provided on both sides of the outer wall of the central slide rail; Wherein, a plurality of connection seats are slidably connected at both ends of the through groove, and the connection seats are located at the center of the bottom surface of the sliding component; The center of the top surface of the sliding member is fixedly connected to the limited slide rail, and the center of the outer wall of the limited slide rail is slidably connected to the sliding rack. A threaded sleeve is added to one end of the top surface of the sliding rack, and a plurality of meshing gears are provided on both sides of the outside of the sliding rack. A movable screw is rotatably connected to the center of the inner part of the sliding member, and the top surfaces of the plurality of meshing gears are fixedly connected to a rotating bracket; Among them, one side of the outer wall of the rotating bracket is movably connected with a symmetrical rotating arm and a double-point floating clamp; Since the traditional device uses a screw as a centering drive, when it drives the flat clamp, the screw requires a large torque as the driving force when it rotates. As the screw rotates, when the flat clamp is driven close to the workpiece, the screw will amplify the torque applied by the operator, and the contact surface between the flat clamp and the workpiece is linear. The workpiece is locally subjected to a large clamping force, which is concave or deformed when clamped, and eventually causes the outer wall of the thin-walled tube to deform due to local force. This technical solution adopts the outer wall of the telescopic end of the hydraulic cylinder to be rotatably connected to one end of a plurality of linkage rods through a rotating shaft, and the linkage rod is away from one end of the hydraulic cylinder. The part is rotatably connected to the outer wall of the connecting seat through a rotating shaft, the central axis of the hydraulic cylinder and the central axis of the cylindrical member coincide with each other, the angles between the multiple linkage rods and the outer wall of the top end of the hydraulic cylinder are consistent, and the multiple linkage rods are symmetrically arranged at the center of the top surface of the hydraulic cylinder, the through groove passes through the center slide rail and the center of the top surface of the cylindrical member at the same time, and the inner center of the through groove is connected to the inner center of the cylindrical member through the through groove, the outer wall of the top end of the connecting seat is fixedly connected to the center of the bottom surface of the sliding member, the two sides of the outer walls of the multiple connecting seats are tightly fitted with the two sides of the inner wall of the through groove, and the outer wall of the connecting seat is slidably connected to the inner wall of the through groove; The coaxial design of the hydraulic cylinder and the cylindrical component, combined with the symmetrical distribution and consistent angles of the linkage rods, ensures that when the hydraulic cylinder is extended or retracted, the thrust and pull of each linkage rod are evenly transmitted to the corresponding connecting seat, avoiding unilateral force deviation, so that multiple sliding components can move synchronously toward the center or outside, fundamentally ensuring the centering of the workpiece when it is clamped. At the same time, the sliding constraint of the through-groove on the connecting seat further enhances the movement accuracy. Since the outer wall of the connecting seat is tightly fitted with the inner wall of the through-groove and is slidably connected, its movement trajectory is strictly limited to the axial range of the through-groove, effectively preventing the sliding component from shaking or tilting. Combined with the linkage effect of the linkage rod, a coordinated mechanism of synchronous translation is ultimately formed between the multiple sliding components. As a further improvement of the present technical solution, the movement synchronization of the multiple sliding components driven by the hydraulic cylinder is significantly improved, and the centering of the workpiece when clamped is more stable.

[0007] On this basis, due to the combination of fixed-angle arc blocks and plane clamps used in traditional devices, the opening angle of the arc blocks is a fixed value, which can only adapt to thin-walled tubular parts of a single specification. When processing tubular parts, it is necessary to cooperate with the plane clamps, but the contact area between the plane clamps and the outer wall of the workpiece is limited, and it is difficult to fully contact the outer wall of the workpiece, which can easily cause the workpiece to deform under the action of the clamping force. In order to enable the present device to actively fit thin-walled tubular workpieces with more inner diameters, the present technical solution adopts that the sliding rack is buried in the center of the sliding component, and the sliding rack is slidably connected to the center of the sliding component by a limiting slide rail, and the plurality of meshing gears are respectively buried on both sides of the sliding component, and the center of the bottom surface of the meshing gear is rotatably connected to one side of the sliding component through a rotating shaft; The plurality of meshing gears are respectively located on both sides of the sliding rack, and one side of the outer wall of the meshing gear is meshed with one side of the outer wall of the sliding rack. The inner wall of the threaded sleeve additionally provided on the top surface of the sliding rack is threadedly connected to the center of the outer wall of the movable screw, and the outer wall of one end of the movable screw is rotatably connected to a knob; A triangular foot support plate is added between the top surface of the sliding rack and one side of the outer wall of the threaded sleeve; As a further improvement to this technical solution, turning the knob slowly translates the sliding rack through the threaded sleeve and the movable screw, driving the meshing gears on both sides to rotate synchronously. This can compensate for uneven contact caused by slight errors between the workpieces, ensuring that the curved surfaces of all encircling clamps fit tightly against the outer wall of the workpiece, avoiding the local stress concentration caused by traditional flat clamping block auxiliary positioning, and solving the problem of reduced machining accuracy caused by uneven clamping force distribution in turning equipment. Since the traditional device adopts a combination of a fixed-angle arc block and a flat clamp, the outer wall of the flat clamp adopts a purely flat structure, and the flat clamp is hard-connected when in contact with the outer wall of the thin-walled tubular workpiece. Since the outer wall of the tubular workpiece is a circular arc surface, the flat surface of the flat clamp and the circular arc surface can only form a single straight line contact, resulting in the clamping force being highly concentrated in the vertical area and difficult to be shared. This area contact method will not only cause excessive local stress on the outer wall of the workpiece, but also force the thin-walled workpiece to deform due to local compression. In order to further optimize the clamping performance of the flat clamp for thin-walled tubular workpieces in the traditional device; This technical solution adopts that the multiple rotating brackets are symmetrically distributed on both sides of the outside of the workpiece, and one end of the top surface of the rotating bracket is rotatably connected to the inner center of the symmetrical swing arm through a rotating shaft, and the multiple double-point floating clamps are symmetrically arranged on both sides of the inside of the symmetrical swing arm, and the inner centers of the multiple double-point floating clamps are respectively rotatably connected to both sides of the inside of the symmetrical swing arm through rotating shafts. The double-point floating clamp as a whole is composed of a large cylinder and two small cylinders, and the outer surfaces of the two small cylinders on the outer wall of the double-point floating clamp form a close fitting contact with the outer surface of the workpiece; One side of the outer wall of the double-point floating fixture is covered with a plurality of anti-slip adhesive stickers; As a further improvement of the present technical solution, the double-point floating fixture adopts a combination structure of a large cylinder and two small cylinders, and the outer surfaces of the two small cylinders form a double-point fitting contact with the arc surface of the workpiece. Compared with the traditional single straight line contact, it can effectively increase the contact area, disperse the clamping force in multiple contact areas, and reduce the occurrence of local stress concentration. In addition, the double-point floating fixture and the symmetrical swing arm are rotated on the top surface of the rotating bracket through multiple rotating shafts. The double-floating structure, when contacting the outer surface of the workpiece, the multiple double-point floating fixtures and the rotating bracket are adjusted by slightly rotating the center of the rotating shaft to make the outer surfaces of the multiple small cylinders dynamically fit with the curved surface of the workpiece to form a stable contact. Compared with the single straight line contact of the traditional planar clamp, the contact area is larger and the clamping force is dispersed at two points, which can adaptively distribute the clamping force to avoid local stress concentration.

[0008] Compared with the prior art, the present invention has the following beneficial effects: 1. In the titanium alloy thin-walled parts processing lathe, the double-point floating fixture is connected to the two sides of the symmetrical swing arm through the rotating shaft, so that it can be rotated and adjusted slightly when contacting the outer surface of the workpiece. Under the action of its own structure, the outer surfaces of the two small cylinders will gradually fit with the curved surface of the outer surface of the workpiece to form double-point contact, dispersing the clamping force. At the same time, the rotating connection between the rotating bracket and the symmetrical swing arm provides lateral floating space, ensuring that the double-point floating fixtures on both sides will gradually follow the curved surface of the workpiece to perform adaptive rotation based on fitting, ensuring that the clamping force is evenly distributed on the outer surface of the workpiece, avoiding concentration in a single linear contact area, so as to effectively reduce the generation of local stress imbalance, prevent the pipe from being deformed due to excessive local pressure, and maintain the roundness of the workpiece cross section.

[0009] 2. In this lathe for processing titanium alloy thin-walled parts, when a hydraulic cylinder is used to move multiple embracing clamps to the outer wall of the workpiece, the knob is turned to push the sliding rack to slowly translate through the threaded kit and the movable screw, driving the meshing gears and symmetrical swing arms on both sides to rotate synchronously, driving multiple double-point floating clamps to approach the outer surface of the workpiece, avoiding the local stress concentration caused by traditional flat clamp auxiliary positioning.

[0010] 3. In the lathe for processing titanium alloy thin-walled parts, a coaxial structure of a hydraulic cylinder and a cylindrical component is adopted. Combined with the characteristics of symmetrical distribution and consistent angles of the linkage rods, multiple sliding components are driven to move synchronously toward the center of the outer wall of the workpiece, so that the arc-shaped clamping surface of the embracing fixture is close to the outer wall of the workpiece, completing the precise preliminary positioning before turning. The sliding constraint of the through groove on the connecting seat enhances the movement accuracy of the sliding component, avoids shaking, tilting and local force, and forms a better annular package. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial overall structure of the cylindrical component of the present invention; Figure 3 It is a partial cutaway overall structural diagram of the cylindrical member of the present invention; Figure 4 For the present invention Figure 3 A is a partial enlarged schematic diagram of the overall structure; Figure 5 It is a schematic diagram of the partial three-dimensional structure of the sliding member and the central slide rail of the present invention; Figure 6 It is a schematic diagram of the partial three-dimensional structure of the rotating bracket and the symmetrical rotating arm of the present invention; Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the sliding component of the present invention; Figure 8 It is a schematic diagram of the partial three-dimensional structure of the symmetrical rotary arm and the double-point floating clamp of the present invention.

[0012] The meaning of each number in the figure is: 1. Machine tool; 2. Cylindrical component; 201. Workpiece; 202. Hydraulic cylinder; 203. Linkage rod; 204. Center slide rail; 205. Through groove; 206. Connecting seat; 3. Sliding component; 301. Limiting slide rail; 302. Sliding rack; 303. Threaded kit; 304. Meshing gear; 305. Movable screw; 306. Knob; 307. Triangular foot support plate; 4. Rotating bracket; 401. Symmetrical swing arm; 402. Double-point floating fixture; 403. Anti-slip adhesive tape. DETAILED DESCRIPTION

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] The existing device uses a combination of a fixed-angle arc block and a flat clamping block. The outer wall of the flat clamping block adopts a purely flat structure. During the clamping process, the clamping force applied is difficult to be evenly distributed on the circumference of the pipe wall. The parts are prone to plastic deformation at these stress concentration points, which directly manifests as the pipe being crushed and the cross-section changing from a circular shape to an elliptical shape.

[0015] For this purpose, the present invention provides a titanium alloy thin-walled parts processing lathe, see Figure 1 As shown, it includes a machine tool 1, a cylindrical member 2 is bolted inside the machine tool 1, and a workpiece 201 is provided at one end of the cylindrical member 2, a hydraulic cylinder 202 is fixedly connected to the center of the cylindrical member 2, and a plurality of linkage rods 203 are provided on the outer wall of the telescopic end of the hydraulic cylinder 202, a central slide rail 204 is fixedly connected to the center of the outer wall of the cylindrical member 2, and a through groove 205 is provided at the center of the top surface of the central slide rail 204, and a plurality of sliding members 3 are provided on both sides of the outer wall of the central slide rail 204; Among them, multiple connecting seats 206 are slidably connected at both ends of the through groove 205, and the connecting seat 206 is located at the center of the bottom surface of the sliding member 3; The center of the top surface of the sliding member 3 is fixedly connected to the limited sliding rail 301, and the center of the outer wall of the limited sliding rail 301 is slidably connected to the sliding rack 302. A threaded sleeve 303 is added to one end of the top surface of the sliding rack 302, and multiple meshing gears 304 are provided on both sides of the outside of the sliding rack 302. A movable screw 305 is rotatably connected to the center of the inner part of the sliding member 3, and the top surfaces of the multiple meshing gears 304 are fixedly connected to the rotating bracket 4; Among them, a symmetrical rotary arm 401 and a double-point floating clamp 402 are movably connected to one side of the outer wall of the rotating bracket 4.

[0016] For details, see Figure 2-Figure 4 As shown, the outer wall of the telescopic end of the hydraulic cylinder 202 is rotatably connected to one end of multiple linkage rods 203 through a rotating shaft, and the end of the linkage rod 203 away from the hydraulic cylinder 202 is rotatably connected to the outer wall of the connecting seat 206 through a rotating shaft, the central axis of the hydraulic cylinder 202 coincides with the central axis of the cylindrical member 2, the multiple linkage rods 203 and the angles between the top outer wall of the hydraulic cylinder 202 are consistent, and the multiple linkage rods 203 are symmetrically arranged at the center of the top surface of the hydraulic cylinder 202, the through groove 205 simultaneously penetrates the center slide rail 204 and the center of the top surface of the cylindrical member 2, and the internal center of the through groove 205 is connected to the internal center of the cylindrical member 2 through the through groove 205, the outer wall of the top end of the connecting seat 206 is fixedly connected to the center of the bottom surface of the sliding member 3, the two sides of the outer walls of the multiple connecting seats 206 are tightly fitted with the two sides of the inner wall of the through groove 205, and the outer wall of the connecting seat 206 is slidably connected to the inner wall of the through groove 205.

[0017] During operation, when the hydraulic cylinder 202 starts working, the hydraulic cylinder 202 extends and contracts, tightens and drives the linkage rod 203, and the tension is transmitted to the bottom of the connecting seat 206 through the linkage rod 203. The connecting seat 206 will slide smoothly along the inner wall of the through groove 205, pushing multiple sliding components 3 to move toward the center, and finally preliminarily positioning the workpiece 201 at the center of the outer wall of the cylindrical component 2, ensuring that the workpiece 201 is concentric with the main axis of the cylindrical component 2.

[0018] For further information, see Figure 5-Figure 7 As shown, the sliding rack 302 is embedded in the center of the sliding member 3, and the sliding rack 302 is slidably connected to the center of the sliding member 3 using a limiting slide rail 301. A plurality of meshing gears 304 are respectively embedded on both sides of the sliding member 3, and the bottom center of the meshing gear 304 is rotatably connected to one side of the sliding member 3 through a rotating shaft. A plurality of meshing gears 304 are respectively located on both sides of the sliding rack 302, and one side of the outer wall of the meshing gear 304 meshes with one side of the outer wall of the sliding rack 302. The inner wall of the threaded sleeve 303 added to the top surface of the sliding rack 302 is threadedly connected to the center of the outer wall of the movable screw 305. The outer wall of one end of the movable screw 305 is rotatably connected to a knob 306; A triangular foot support plate 307 is provided between the top surface of the sliding rack 302 and one side of the outer wall of the threaded sleeve 303 .

[0019] During operation, when clamping and fixing the thin tubular arm workpiece 201, the worker only needs to turn the knob 306 on the outer wall of the sliding member 3, drive the threaded sleeve 303 to rotate through the movable screw 305, and push the sliding rack 302 to move slowly along the outer wall of the limiting slide rail 301. Through the meshing transmission, the meshing gears 304 on both sides of its outer wall are synchronously driven to rotate, and rotate synchronously, and drive multiple double-point floating clamps 402 to gradually approach the outer surface of the workpiece 201.

[0020] Among them, see Figure 5-Figure 8 As shown, multiple rotating brackets 4 are symmetrically distributed on both sides of the outside of the workpiece 201, and one end of the top surface of the rotating bracket 4 is rotatably connected to the inner center of the symmetrical rotary arm 401 through a rotating shaft. Multiple double-point floating fixtures 402 are symmetrically arranged on both sides of the inside of the symmetrical rotary arm 401, and the inner centers of multiple double-point floating fixtures 402 are rotatably connected to both sides of the inside of the symmetrical rotary arm 401 through rotating shafts. The double-point floating fixture 402 is composed of a large cylinder and two small cylinders. The outer surfaces of the two small cylinders on the outer wall of the double-point floating fixture 402 form a tight fitting contact with the outer surface of the workpiece 201. One side of the outer wall of the double-point floating fixture 402 is covered with a plurality of anti-slip adhesive stickers 403 .

[0021] During operation, driven by the meshing gear 304, the symmetrical swing arm 401 coaxially connected to the gear swings toward the workpiece 201, and the double-point floating clamp 402 approaches the outer surface of the workpiece 201 with the symmetrical swing arm 401. When the double-point floating clamp 402 contacts the curved outer surface of the workpiece 201, it will immediately make a small rotation around the axis and adjust its posture. The outer surfaces of the two small cylinders gradually fit the curved surface of the workpiece 201, forming multiple points of simultaneous contact, and finally making the clamping force evenly distributed along the outer surface of the workpiece 201. During the whole process, the clamp avoids deformation of the thin-walled structure of the workpiece 201 due to excessive local pressure through dual adjustment of angle adaptation and lateral floating, ensures that the cross-section of the workpiece 201 remains circular, and completes the clamping and fixation of the workpiece 201.

[0022] In summary, the problem in the existing device that the workpiece 201 is deformed due to the excessive concentration of the clamping force distribution is effectively solved.

[0023] Working principle: When clamping and fixing a tubular thin-walled workpiece 201, the worker rotates the knob 306 on the outer wall of the sliding member 3, and the movable screw 305 then drives the threaded sleeve 303 to rotate, pushing the sliding rack 302 to slowly move along the limiting slide rail 301. The meshing gears 304 on both sides rotate synchronously and drive the symmetrical rotary arm 401 to move toward the workpiece 201, so that the double-point floating fixture 402 gradually approaches the outer surface of the workpiece 201. At this time, the double-point floating fixture 402 is connected to the symmetrical rotary arm 401 through the rotating shaft. 1. When the inner two sides contact the curved surface of the workpiece 201, they will rotate slightly to adjust. The outer surfaces of the two small cylinders dynamically fit with the curved surface of the workpiece 201 to form multiple points of contact at the same time, dispersing the clamping force. The rotating connection between the rotating bracket 4 and the symmetrical rotary arm 401 ensures that the two-point floating clamps 402 on both sides follow the adaptive rotation of the curved surface of the workpiece 201, ultimately evenly distributing the clamping force on the outer surface of the workpiece 201, avoiding concentration in a single linear contact area, and preventing the pipe from deformation due to excessive local pressure as much as possible, thereby achieving stable clamping.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lathe for processing titanium alloy thin-walled parts, comprising a machine tool (1), characterized in that: The machine tool (1) is internally bolted with a cylindrical component (2), and one end of the cylindrical component (2) is provided with a workpiece (201); the center of the cylindrical component (2) is fixedly connected to a hydraulic cylinder (202), and the outer wall of the telescopic end of the hydraulic cylinder (202) is provided with a plurality of linkage rods (203); the center of the outer wall of the cylindrical component (2) is fixedly connected to a central slide rail (204), and a through groove (205) is provided at the center of the top surface of the central slide rail (204); and a plurality of sliding components (3) are provided on both sides of the outer wall of the central slide rail (204); Wherein, a plurality of connection seats (206) are slidably connected to both ends of the through groove (205), and the connection seat (206) is located at the center of the bottom surface of the sliding component (3); The center of the top surface of the sliding member (3) is fixedly connected to the limiting slide rail (301), and the center of the outer wall of the limiting slide rail (301) is slidably connected to the sliding rack (302), a threaded sleeve (303) is added to one end of the top surface of the sliding rack (302), and a plurality of meshing gears (304) are provided on both sides of the outside of the sliding rack (302), a movable screw (305) is rotatably connected to the center of the interior of the sliding member (3), and the top surfaces of the plurality of meshing gears (304) are fixedly connected to the rotating bracket (4); Wherein, a symmetrical rotary arm (401) and a double-point floating clamp (402) are movably connected to one side of the outer wall of the rotary bracket (4).

2. The lathe for processing titanium alloy thin-walled parts according to claim 1, characterized in that: The outer wall of the telescopic end of the hydraulic cylinder (202) is rotatably connected to one end of a plurality of linkage rods (203) via a rotating shaft, and the end of the linkage rod (203) away from the hydraulic cylinder (202) is rotatably connected to the outer wall of the connecting seat (206) via a rotating shaft; The central axis of the hydraulic cylinder (202) and the central axis of the cylindrical member (2) coincide with each other.

3. The lathe for processing titanium alloy thin-walled parts according to claim 2, characterized in that: The angles between the plurality of linkage rods (203) and the outer wall of the top end of the hydraulic cylinder (202) are consistent, and the plurality of linkage rods (203) are symmetrically arranged at the center of the top surface of the hydraulic cylinder (202); The through groove (205) simultaneously penetrates the center slide rail (204) and the center of the top surface of the cylindrical component (2), and the inner center of the through groove (205) is connected to the inner center of the cylindrical component (2) through the through groove (205).

4. The lathe for processing titanium alloy thin-walled parts according to claim 3, characterized in that: The outer wall of the top end of the connecting seat (206) is fixedly connected to the center of the bottom surface of the sliding member (3), and the two sides of the outer wall of the connecting seat (206) are tightly fitted with the two sides of the inner wall of the through groove (205), and the outer wall of the connecting seat (206) is slidably connected to the inner wall of the through groove (205).

5. The lathe for processing titanium alloy thin-walled parts according to claim 4, characterized in that: The sliding rack (302) is embedded in the inner center of the sliding component (3), and the sliding rack (302) is slidably connected to the inner center of the sliding component (3) by means of a limiting slide rail (301).

6. The lathe for processing titanium alloy thin-walled parts according to claim 1, characterized in that: The plurality of meshing gears (304) are respectively embedded in both sides of the interior of the sliding component (3), and the center of the bottom surface of the meshing gear (304) is rotatably connected to one side of the interior of the sliding component (3) via a rotating shaft; The plurality of meshing gears (304) are respectively located on both sides of the sliding rack (302), and one side of the outer wall of the meshing gear (304) is meshed with one side of the outer wall of the sliding rack (302).

7. The lathe for processing titanium alloy thin-walled parts according to claim 6, characterized in that: The inner wall of the threaded sleeve (303) added to the top surface of the sliding rack (302) is threadedly connected to the center of the outer wall of the movable screw (305), and the outer wall of one end of the movable screw (305) is rotatably connected to a knob (306); A triangular foot support plate (307) is provided between the top surface of the sliding rack (302) and one side of the outer wall of the threaded sleeve (303).

8. The lathe for processing titanium alloy thin-walled parts according to claim 1, characterized in that: The plurality of rotating brackets (4) are symmetrically distributed on both sides of the exterior of the workpiece (201), and one end of the top surface of the rotating bracket (4) is rotatably connected to the inner center of the symmetrical rotary arm (401) via a rotating shaft.

9. The lathe for processing titanium alloy thin-walled parts according to claim 1, characterized in that: The multiple double-point floating clamps (402) are symmetrically arranged on both sides of the symmetrical rotary arm (401), and the internal centers of the multiple double-point floating clamps (402) are rotatably connected to the two sides of the symmetrical rotary arm (401) through rotating shafts.

10. The lathe for processing titanium alloy thin-walled parts according to claim 9, characterized in that: The double-point floating fixture (402) is composed of a large cylinder and two small cylinders, and the outer surfaces of the two small cylinders on the outer wall of the double-point floating fixture (402) form a close fitting contact with the outer surface of the workpiece (201); One side of the outer wall of the double-point floating clamp (402) is covered with a plurality of anti-slip adhesive stickers (403).

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