Blade fixture for five-axis machining center

Abstract

The present application relates to the technical field of machining, and particularly relates to a vane clamp for a five-axis machining center. The vane clamp comprises: a first clamping part located at a first end of a workbench, wherein the first clamping part is connected with a spindle of a first spindle box; a second clamping part located at a second end of the workbench, wherein the second clamping part is connected with a spindle of a second spindle box; and a follow-up support structure arranged between the first clamping part and the second clamping part and in sliding connection with the workbench; wherein the follow-up support structure comprises a driving assembly and a third clamping part, the driving assembly is provided with a hole for passing through a vane, and the third clamping part is arranged along an edge of the hole; when the follow-up support structure moves along the workbench, the driving assembly rotates the third clamping part to adapt to the angle change of a vane profile. In the present application, the follow-up support structure is used to support fragile parts of the vane to avoid deformation of the vane.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a blade fixture for a five-axis machining center. Background Technology

[0002] Blades are crucial components of steam turbines. During turbine operation, blades must continuously withstand extreme conditions such as high temperature, high pressure, immense centrifugal force, steam excitation force, corrosion, and vibration. To ensure reliable blade quality, extremely high machining precision is required during blade processing. However, when machining blades using a five-axis machining center, ordinary tooling fixtures are still used to hold the blades in place.

[0003] Due to the complex curved shape of the blades, the clamps in ordinary tooling fixtures can only hold the curved surface with a very small contact area, resulting in low blade stability. Furthermore, the blades are typically over 2000 mm in diameter; when machined at high speeds, the blades vibrate and deform, leading to increased machining errors. Therefore, it is difficult to guarantee the machining accuracy and surface quality of the blades when using a five-axis machining center. Summary of the Invention

[0004] This invention aims to solve the technical problems existing in related technologies. To this end, this invention proposes a blade fixture for a five-axis machining center to improve the rigidity and stability of the blade, reduce vibration and deformation of the blade during machining, and thus improve the machining quality of the blade.

[0005] This invention provides a blade fixture for a five-axis machining center. The five-axis machining center includes a worktable, a first spindle box, and a second spindle box. The blade fixture includes: The first clamping part is located at the first end of the worktable and is connected to the spindle of the first spindle box; The second clamping part is located at the second end of the worktable, and the second clamping part is connected to the spindle of the second spindle box; A follower support structure is disposed between the first clamping part and the second clamping part, and is slidably connected to the worktable; The follow-up support structure includes a drive assembly and a third clamping part. The drive assembly is provided with a channel for passing through the blade, and the third clamping part is provided along the edge of the channel. When the follow-up support structure moves along the worktable, the drive assembly rotates the third clamping part to adapt to the angle change of the blade profile.

[0006] According to the present invention, a blade fixture for a five-axis machining center is provided, wherein the drive assembly includes: A base, the upper end of which is provided with an annular support, and the lower end of which is slidably connected to the worktable; The rotating bracket is configured as a circular tube structure and is movably sleeved on the inner circumference of the annular bracket; The first gear has its central axis coincide with the central axis of the rotating bracket, and the teeth of the first gear protrude from the outer peripheral wall of the rotating bracket. The second gear is movably mounted on the base and meshes with the first gear; The first gear is fixedly connected to the rotating bracket, and a through hole is formed in the middle of the first gear so that the channel extends from one end of the drive component to the other end of the drive component.

[0007] According to the present invention, a blade clamp for a five-axis machining center is provided, wherein the third clamping part comprises: The connecting plate is configured as a circular flat plate, and the connecting plate is installed at one end of the rotating bracket and is coaxial with the rotating bracket; The end cap is configured as an arc-shaped flat plate, and the end cap is installed on the inner circumferential side of the connecting plate; The pressure assembly is fixed to the end cap; The straight edge of the end cap is smaller than the inner circumferential diameter of the connecting disk. The two end caps are symmetrically arranged on the connecting disk. An even number of the top pressure components are symmetrically distributed on the two end caps to facilitate support from both sides of the blade.

[0008] According to the present invention, a blade clamp for a five-axis machining center is provided, wherein the pressing assembly comprises: The fixing block is configured as a rectangular prism, and one end of the fixing block is provided with a receiving groove; The hydraulic cylinder is embedded in the receiving groove; The top block is installed on the telescopic rod of the hydraulic cylinder.

[0009] According to the present invention, a blade clamping fixture for a five-axis machining center is provided, wherein the first clamping part includes: The first base has a first bottom plate that is vertically mounted on the spindle of the first spindle box and a first side plate that is parallel to the spindle of the first spindle box. The first clamping assembly is fixed to the first side plate.

[0010] According to the present invention, a blade clamping fixture for a five-axis machining center, the first clamping part further includes: The first apex extends along the normal to the surface of the first base plate; One end of the first tip is connected to the first base plate, and the other end of the first tip is used to abut against the root process head.

[0011] According to the present invention, a blade clamp for a five-axis machining center is provided, wherein the first clamping assembly comprises: A first hydraulic cylinder is mounted on the first side plate, and the extension rod of the first hydraulic cylinder is perpendicular to the surface of the first side plate. The first support block is disposed on the side of the first hydraulic cylinder away from the first base plate and is connected to the first side plate; The first pressure plate, one end of which is connected to the telescopic rod of the first hydraulic cylinder; The first set screw is installed at the other end of the first pressure plate; The first hydraulic cylinder drives the first pressure plate so that the first set screw and the first support block cooperate to clamp the blade.

[0012] According to the present invention, a blade clamping fixture for a five-axis machining center is provided, wherein the second clamping part includes: The second base is provided with a second bottom plate that is vertically installed on the spindle of the second spindle box and a second side plate that is parallel to the spindle of the second spindle box; The second clamping assembly is fixed to the second side plate.

[0013] According to the present invention, a blade clamping fixture for a five-axis machining center, the second clamping part further includes: The second apex extends along the normal to the surface of the second base plate; One end of the second tip is connected to the second base plate, and the other end of the second tip is used to abut against the crown process head.

[0014] According to the present invention, a blade clamp for a five-axis machining center is provided, wherein the second clamping assembly includes: The second hydraulic cylinder is mounted on the second side plate, and the extension rod of the second hydraulic cylinder is perpendicular to the surface of the second side plate. The second support block is located on the side of the second hydraulic cylinder away from the second base plate and is connected to the second side plate; The second pressure plate, one end of which is connected to the telescopic rod of the second hydraulic cylinder; The second set screw is installed at the other end of the second pressure plate; The second hydraulic cylinder drives the second pressure plate so that the second set screw and the second support block cooperate to clamp the blade.

[0015] The above-described one or more technical solutions of this invention have at least one of the following technical effects: The first and second clamping parts fix the root process head and crown process head of the blade respectively, enabling quick and accurate positioning and fixing of the blade, reducing clamping and adjustment time; the follow-up support structure can support the middle part of the blade, improve the rigidity and stability of the blade, reduce the vibration and deformation of the blade during high-speed milling, thereby ensuring high-precision machining of the complex curved surface of the blade.

[0016] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted by the present invention, and the advantages brought about by the technical features of these technical solutions as described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or will be learned through the practice of the present invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the blade fixture installed on a five-axis machining center according to an embodiment of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the follower support structure provided in an embodiment of the present invention.

[0020] Figure 3 This is a transmission structure diagram of the follower support structure provided in an embodiment of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the first clamping part provided in an embodiment of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the second clamping part provided in an embodiment of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the blade provided in an embodiment of the present invention.

[0024] Figure label: 1. Worktable; 2. First spindle box; 3. Second spindle box; 4. Blade; 41. Root process head; 42. Blade body; 43. Crown process head; 100. First clamping part; 110. First base; 111. First base plate; 112. First side plate; 120. First clamping assembly; 121. First hydraulic cylinder; 122. First support block; 123. First pressure plate; 124. First set screw; 130. First center; 200. Second clamping part; 210. Second base; 211. Second base plate; 212. 220. Second side plate; 221. Second clamping assembly; 222. Second hydraulic cylinder; 223. Second support block; 224. Second pressure plate; 225. Second set screw; 230. Second center point; 300. Follow-up support structure; 310. Drive assembly; 311. Base; 312. Ring bracket; 313. Rotating bracket; 314. First gear; 315. Second gear; 320. Third clamping part; 321. Connecting plate; 322. End cover; 323. Top pressing assembly; 324. Fixing block; 325. Oil cylinder; 326. Top block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] In existing technologies, when milling large blades using a five-axis machining center, the blades are typically fixed only by the process heads at both ends. However, this traditional clamping method has significant drawbacks: insufficient rigidity and machining chatter.

[0027] Blades are slender parts with complex spatial curved surfaces. With only the two ends fixed, the rigidity of the blade's middle section is relatively poor. When a cutting tool mills the middle section of the blade, the cutting force can easily cause elastic deformation or high-frequency vibration. This not only results in ripples on the machined surface, severely affecting surface quality, but may also lead to dimensional deviations in the blade.

[0028] To address the aforementioned problems, an embodiment of the present invention provides a blade fixture for a five-axis machining center.

[0029] like Figure 1 and Figure 6 As shown, blade 4 includes blade body 4, root process head 41 and crown process head 43. The five-axis machining center includes a worktable 1, a first spindle box 2, and a second spindle box 3.

[0030] The blade 4 fixture mainly includes a first clamping part 100, a second clamping part 200, and a follow-up support structure 300. These three components are installed on the worktable 1 of the five-axis machining center and work together.

[0031] The first clamping part 100 is located at the first end of the worktable 1, which is usually the drive spindle end of the machine tool. The first clamping part 100 is connected to the spindle of the first spindle box 2 and is used to transmit rotational torque to the blade 4.

[0032] The second clamping part 200 is located at the second end of the worktable 1, typically the driven shaft end of the machine tool. The second clamping part 200 is connected to the spindle of the second spindle box 3.

[0033] It is worth noting that the second spindle box 3 is slidably connected to the worktable 1, enabling it to move along the length of the worktable 1. In this structure, the second spindle box 3 drives the second clamping part 200 to move, which can accommodate blades 4 of different lengths.

[0034] The follower support structure 300 is disposed between the first clamping part 100 and the second clamping part 200. Furthermore, the follower support structure 300 is slidably connected to the worktable 1. Therefore, the follower support structure 300 can move to the position where the blade 4 is least rigid, providing auxiliary support according to the requirements of the processing technology.

[0035] like Figure 2 and Figure 3 As shown, the follower support structure 300 includes a drive assembly 310 and a third clamping part 320. The drive assembly 310 is provided with a channel for the blade 4 to pass through. The third clamping part 320 is provided along the edge of the channel.

[0036] When the follow-up support structure 300 moves along the worktable 1, the drive assembly 310 rotates the third clamping part 320 to adapt to the angle change of the blade 4 profile.

[0037] Furthermore, the drive assembly 310 includes a base 311, a rotating bracket 313, a first gear 314, a second gear 315, a reducer, and a motor.

[0038] An annular support 312 is provided at the upper end of the base 311. The lower end of the base 311 is slidably connected to the worktable 1.

[0039] The rotating bracket 313 is configured as a circular tube structure and is movably sleeved on the inner circumference of the annular bracket 312.

[0040] The central axis of the first gear 314 coincides with the central axis of the rotating support 313. The teeth of the first gear 314 protrude from the outer peripheral wall of the rotating support 313.

[0041] The second gear 315 is movably mounted on the base 311. Furthermore, the second gear 315 meshes with the first gear 314.

[0042] The first gear 314 is fixedly connected to the rotating bracket 313. A through hole is formed in the middle of the first gear 314 so that the hole extends from one end of the drive assembly 310 to the other end of the drive assembly 310.

[0043] The motor drives the second gear 315 via a reducer, which in turn drives the first gear 314 and the rotating support 313 to rotate. By setting the drive assembly 310, the third clamping part 320 can be synchronously adapted to the angular changes of the blade 4's profile. Since the blade 4 is tortuous, its cross-sectional angle continuously changes along the axial direction. When the machine tool spindle drives the blade 4 to rotate for machining, the follower support structure 300 must rotate synchronously to ensure that the third clamping part 320 always clamps the side of the blade 4 at a specific angle, thereby providing effective normal support force to the blade 4.

[0044] In this embodiment, the first clamping part 100 and the second clamping part 200 fix the root process head 41 and the crown process head 43 of the blade 4 respectively, which can quickly and accurately position and fix the blade 4, reducing clamping and adjustment time; the follow-up support structure 300 can support the middle part of the blade 4, improve the rigidity and stability of the blade 4, reduce the vibration and deformation of the blade 4 during high-speed milling, thereby ensuring high-precision machining of the complex curved surface of the blade 4.

[0045] Based on the above embodiments, another embodiment of the present invention introduces a blade 4 fixture for a five-axis machining center.

[0046] like Figure 3 As shown, the third clamping part 320 includes a connecting plate 321, an end cap 322, and a pressing assembly 323.

[0047] The connecting plate 321 is configured as a circular flat plate. The connecting plate 321 is mounted on one end of the rotating bracket 313. Furthermore, the connecting plate 321 is coaxial with the rotating bracket 313.

[0048] The end cap 322 is configured as an arc-shaped flat plate. The end cap 322 is mounted on the inner circumference of the connecting plate 321. The pressing assembly 323 is fixed to the end cap 322.

[0049] The straight edge of the end cap 322 is smaller than the inner circumferential diameter of the connecting disk 321. The two end caps 322 are symmetrically arranged on the connecting disk 321, and a channel for the blade 4 to pass through is left in the middle of the connecting disk 321.

[0050] An even number of the top-pressure components 323 are symmetrically distributed on the two end caps 322, thereby applying opposing and equal supporting forces from both sides of the blade 4 simultaneously. In this way, without changing the position of the blade 4, the bending stiffness of the middle section of the blade 4 can be increased, effectively suppressing vibrations during processing.

[0051] Furthermore, the top pressure assembly 323 includes a fixing block 324, a hydraulic cylinder 325, and a top block 326.

[0052] The fixing block 324 is configured as a rectangular prism. One end of the fixing block 324 is provided with a receiving groove. The hydraulic cylinder 325 is embedded in the receiving groove. The top block 326 is installed on the telescopic rod of the hydraulic cylinder 325 to prevent the blade 4 from being scratched.

[0053] The follow-up support structure 300 is also equipped with an energy accumulator to provide power to the hydraulic cylinder 325 of the top pressure assembly 323.

[0054] Furthermore, the present invention has optimized the design of the first clamping part 100 and the second clamping part 200 to ensure the accuracy of the positioning of the blade 4.

[0055] like Figure 4 As shown, the first clamping part 100 includes a first base 110 and a first clamping assembly 120.

[0056] The first base 110 is provided with a first base plate 111 and a first side plate 112.

[0057] The first base plate 111 is perpendicular to the spindle of the first spindle box 2. The first side plate 112 is parallel to the spindle of the first spindle box 2. The first side plate 112 and the spindle of the first spindle box 2 are located on both sides of the first base plate 111.

[0058] The first clamping assembly 120 is fixed on the first side plate 112.

[0059] In order to cooperate with the first clamping assembly 120 to position the blade 4, the first clamping part 100 also includes a first tip 130.

[0060] The first tip 130 extends along the normal to the surface of the first base plate 111. One end of the first tip 130 is connected to the first base plate 111, and the other end of the first tip 130 is used to abut against the root process head 41.

[0061] The first clamping assembly 120 includes a first hydraulic cylinder 121, a first support block 122, a first pressure plate 123, and a first set screw 124.

[0062] The first hydraulic cylinder 121 is mounted on the first side plate 112. The extension rod of the first hydraulic cylinder 121 is perpendicular to the surface of the first side plate 112.

[0063] The first support block 122 is located on the side of the first hydraulic cylinder 121 opposite to the first base plate 111. Furthermore, the first support block 122 is connected to the first side plate 112.

[0064] One end of the first pressure plate 123 is connected to the telescopic rod of the first hydraulic cylinder 121. The first set screw 124 is installed at the other end of the first pressure plate 123.

[0065] The first hydraulic cylinder 121 drives the first pressure plate 123 so that the first set screw 124 and the first support block 122 cooperate to clamp the blade 4.

[0066] The first support block 122 serves as a stationary reference surface. During operation, the root process head 41 of the blade 4 is placed on the first support block 122, and the first tip 130 is inserted into the root process head 41 to restrict the degree of freedom of the blade 4. Subsequently, the first hydraulic cylinder 121 drives the first pressure plate 123 to move closer to the first support block 122, so that the first set screw 124 presses the other side of the root process head 41.

[0067] like Figure 5 As shown, the second clamping part 200 includes a second base 210 and a second clamping assembly 220.

[0068] The second base 210 is provided with a second base plate 211 and a second side plate 212.

[0069] The second base plate 211 is perpendicular to the spindle of the second spindle box 3. The second side plate 212 is parallel to the spindle of the second spindle box 3. The second side plate 212 and the spindle of the second spindle box 3 are located on opposite sides of the second base plate 211.

[0070] The second clamping assembly 220 is fixed to the second side plate 212. The second clamping assembly 220 can reciprocate along the length of the worktable 1 along with the second spindle box 3.

[0071] In order to cooperate with the second clamping assembly 220 to position the blade 4, the second clamping part 200 also includes a second tip 230.

[0072] The second tip 230 extends along the normal to the surface of the second base plate 211. One end of the second tip 230 is connected to the second base plate 211, and the other end of the second tip 230 is used to abut against the crown process head 43.

[0073] The second clamping assembly 220 includes a second hydraulic cylinder 221, a second support block 222, a second pressure plate 223, and a second set screw 224.

[0074] The second hydraulic cylinder 221 is mounted on the second side plate 212. The extension rod of the second hydraulic cylinder 221 is perpendicular to the surface of the second side plate 212.

[0075] The second support block 222 is located on the side of the second hydraulic cylinder 221 opposite to the second base plate 211. Furthermore, the second support block 222 is connected to the second side plate 212.

[0076] One end of the second pressure plate 223 is connected to the telescopic rod of the second hydraulic cylinder 221. The second set screw 224 is installed at the other end of the second pressure plate 223.

[0077] The second hydraulic cylinder 221 drives the second pressure plate 223 so that the second set screw 224 and the second support block 222 cooperate to clamp the blade 4.

[0078] The second support block 222 serves as a stationary reference surface. During operation, the crown process head 43 of the blade 4 is placed on the second support block 222, and the second tip 230 is inserted into the crown process head 43 to restrict the degree of freedom of the blade 4. Subsequently, the second hydraulic cylinder 221 drives the second pressure plate 223 to move closer to the second support block 222, so that the second set screw 224 presses the other side of the crown process head 43.

[0079] Preferably, at least one of the first tip 130 and the second tip 230 has an adjustable length to meet the tolerance requirements of different blades 4 in the length direction.

[0080] When clamping the blade 4, first move the follower support structure 300 and the second spindle box 3 to the end of the worktable 1 away from the first spindle box 2.

[0081] Then, the root process head 41 is clamped by the first clamping assembly 120.

[0082] After the root process head 41 is clamped, the follower support structure 300 and the second spindle box 3 are moved toward the first spindle box 2 along the length of the worktable 1 until the follower support structure 300 and the second spindle box 3 reach their respective desired positions.

[0083] Then, the top pressure assembly 323 supports the middle part of the blade 4, and the second clamping assembly 220 clamps the crown process head 43.

[0084] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "first," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 the embodiments of the present 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 the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0085] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0086] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms are not limited to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blade fixture for a five-axis machining center, the five-axis machining center comprising a worktable (1), a first spindle box (2), and a second spindle box (3), characterized in that, The blade clamp includes: The first clamping part (100) is located at the first end of the worktable (1), and the first clamping part (100) is connected to the spindle of the first spindle box (2); The second clamping part (200) is located at the second end of the worktable (1), and the second clamping part (200) is connected to the spindle of the second spindle box (3); A follower support structure (300) is disposed between the first clamping part (100) and the second clamping part (200) and is slidably connected to the worktable (1); The follow-up support structure (300) includes a drive assembly (310) and a third clamping part (320). The drive assembly (310) is provided with a channel for passing through the blade, and the third clamping part (320) is provided along the edge of the channel. When the follow-up support structure (300) moves along the worktable (1), the drive assembly (310) rotates the third clamping part (320) to adapt to the angle change of the blade profile.

2. The blade fixture for a five-axis machining center according to claim 1, characterized in that, The drive component (310) includes: The base (311) has an annular support (312) at its upper end and the lower end of the base (311) is slidably connected to the workbench (1). The rotating bracket (313) is configured as a circular tube structure and is movably sleeved on the inner circumference of the annular bracket (312); The first gear (314) has its central axis coincide with the central axis of the rotating bracket (313), and the teeth of the first gear (314) protrude from the outer peripheral wall of the rotating bracket (313). The second gear (315) is movably mounted on the base (311) and meshes with the first gear (314); The first gear (314) is fixedly connected to the rotating bracket (313), and a through hole is opened in the middle of the first gear (314) so ​​that the channel passes through one end of the drive assembly (310) to the other end of the drive assembly (310).

3. The blade fixture for a five-axis machining center according to claim 2, characterized in that, The third clamping part (320) includes: The connecting plate (321) is configured as an annular plate, and the connecting plate (321) is installed at one end of the rotating bracket (313) and is coaxial with the rotating bracket (313); The end cap (322) is configured as an arc-shaped flat plate, and the end cap (322) is installed on the inner circumferential side of the connecting plate (321); The top pressure assembly (323) is fixed to the end cap (322); The straight edge of the end cap (322) is smaller than the inner circumferential diameter of the connecting disk (321). The two end caps (322) are symmetrically arranged on the connecting disk (321). An even number of the top pressure components (323) are symmetrically distributed on the two end caps (322) to facilitate support from both sides of the blade.

4. The blade fixture for a five-axis machining center according to claim 3, characterized in that, The top pressure assembly (323) includes: The fixing block (324) is configured as a rectangular prism, and one end of the fixing block (324) is provided with a receiving groove; The hydraulic cylinder (325) is embedded in the receiving groove; The top block (326) is mounted on the telescopic rod of the hydraulic cylinder (325).

5. The blade fixture for a five-axis machining center according to any one of claims 1 to 4, characterized in that, The first clamping part (100) includes: The first base (110) is provided with a first base plate (111) vertically mounted on the spindle of the first spindle box (2) and a first side plate (112) parallel to the spindle of the first spindle box (2). The first clamping assembly (120) is fixed on the first side plate (112).

6. The blade fixture for a five-axis machining center according to claim 5, characterized in that, The first clamping part (100) further includes: The first apex (130) extends along the normal to the surface of the first base plate (111); One end of the first tip (130) is connected to the first base plate (111), and the other end of the first tip (130) is used to abut against the root process head.

7. The blade fixture for a five-axis machining center according to claim 6, characterized in that, The first clamping assembly (120) includes: The first hydraulic cylinder (121) is mounted on the first side plate (112), and the telescopic rod of the first hydraulic cylinder (121) is perpendicular to the plate surface of the first side plate (112). The first support block (122) is located on the side of the first hydraulic cylinder (121) away from the first base plate (111) and is connected to the first side plate (112); The first pressure plate (123) has one end connected to the telescopic rod of the first hydraulic cylinder (121); The first set screw (124) is installed at the other end of the first pressure plate (123); The first hydraulic cylinder (121) drives the first pressure plate (123) so that the first set screw (124) and the first support block (122) cooperate to clamp the blade.

8. The blade fixture for a five-axis machining center according to claim 5, characterized in that, The second clamping part (200) includes: The second base (210) is provided with a second base plate (211) that is vertically installed on the spindle of the second spindle box (3) and a second side plate (212) that is parallel to the spindle of the second spindle box (3). The second clamping assembly (220) is fixed on the second side plate (212).

9. The blade fixture for a five-axis machining center according to claim 8, characterized in that, The second clamping part (200) further includes: The second apex (230) extends along the normal to the surface of the second base plate (211); One end of the second tip (230) is connected to the second base plate (211), and the other end of the second tip (230) is used to abut against the crown process head.

10. The blade fixture for a five-axis machining center according to claim 9, characterized in that, The second clamp assembly (220) includes: The second hydraulic cylinder (221) is mounted on the second side plate (212), and the telescopic rod of the second hydraulic cylinder (221) is perpendicular to the surface of the second side plate (212). The second support block (222) is located on the side of the second hydraulic cylinder (221) away from the second base plate (211) and is connected to the second side plate (212); The second pressure plate (223) has one end connected to the telescopic rod of the second hydraulic cylinder (221); The second set screw (224) is installed at the other end of the second pressure plate (223); The second hydraulic cylinder (221) drives the second pressure plate (223) so that the second set screw (224) and the second support block (222) cooperate to clamp the blade.

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