A clamping device for metal impeller of five-axis machining center

Abstract

This utility model discloses a clamping device for a metal impeller in a five-axis machining center, including a base and a drive module disposed within the base. A guide rail plate is disposed above the base, and a clamping unit is disposed above the guide rail plate. The clamping unit is used to limit the clamping position. The guide rail plate has a guide rail groove, and the clamping unit is connected to the output end of the drive module through a connecting plate passing through the guide rail groove. The clamping unit includes a quick-assembly adjustment mechanism and a clamping mechanism disposed above the quick-assembly adjustment mechanism. The quick-assembly adjustment mechanism is used to quickly assemble the clamping mechanism, and the clamping mechanism is used to clamp the workpiece. This utility model adapts to workpieces of different diameters through an adjustable connection structure, avoiding the problem of frequent changes or adjustments of clamping jaws in traditional fixtures, and shortening production preparation time. Through multi-set drive coordination and trajectory limitation, the clamping force is ensured to be evenly distributed, reducing stress concentration deformation. The quick-assembly adjustment mechanism simplifies the traditional fixture replacement process, improving applicability and efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of clamping for five-axis machining centers, and specifically to a clamping device for a metal impeller for a five-axis machining center. Background Technology

[0002] As a core component of turbomachinery equipment, the machining accuracy and clamping efficiency of metal impellers directly affect product performance and production cycle time. Existing technologies for clamping devices of metal impellers mainly employ traditional mechanical clamps, hydraulic clamps, or pneumatic chucks: mechanical clamps achieve clamping through threaded tightening or lever mechanisms, offering advantages such as simple structure and controllable cost, making them suitable for mass production of standardized parts; hydraulic clamps utilize oil pressure to drive pistons to push jaws, providing stable clamping force and rapid response, and are widely used in heavy workpiece machining; pneumatic chucks, on the other hand, use compressed air to drive a wedge mechanism, possessing rapid opening and closing characteristics, and are commonly used in automated production lines.

[0003] However, as impeller structures become thinner and more complex curved, traditional clamping techniques still have certain limitations: First, most fixtures are difficult to adapt to the precise clamping requirements of impellers of different diameters, requiring frequent fixture changes or adjustment of jaw positions, which prolongs production preparation time; second, the problem of uneven clamping force distribution is prominent, which can easily cause thin-walled impellers to deform due to local stress concentration during processing, affecting processing accuracy and further restricting the improvement of processing efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a clamping device for a metal impeller in a five-axis machining center. The four sets of clamping blocks of the second clamping plate are connected to the first clamping plate via an adjustable connection structure to accommodate workpieces of different diameters. Four sets of first-side connecting plates arranged circumferentially around the first clamping plate are connected to the second-side connecting plates on the clamping blocks of the second clamping plate via fastening bolts. During adjustment, the bolts are loosened to separate them. The front-to-back displacement of the clamping blocks is adjusted along the scale on the side of the first-side connecting plate and the scale on the side of the second-side connecting plate. After changing the distance between the arc-shaped part and the first limiting plate, the clamping blocks are locked, completing the initial positioning. This avoids the problem of frequent changes or adjustments to the clamps in traditional fixtures, shortening production preparation time. The telescopic cylinders of the four drive components drive the movable part to move, causing the limiting shaft of the limiting part to slide along the arc-shaped groove of the clamping block's arc-shaped part. The groove limits the trajectory of the limiting shaft, causing the fixed part to synchronously approach and uniformly press against the workpiece surface. Through multiple sets of drive components... Dynamic coordination and trajectory limitation ensure uniform distribution of clamping force, reducing deformation of thin-walled impellers due to stress concentration and improving machining accuracy and stability. The adjustment components on both sides of the sliding plate of the quick-assembly adjustment mechanism drive the threaded shaft to rotate via a rotary motor, causing the nut and the synchronous cylinder fixed thereon to move axially, so that the support shaft can be snapped into the slots at both ends of the mounting base box for quick assembly. When replacing, reverse drive can disengage the support shaft to remove the clamping mechanism, simplifying the traditional fixture replacement process and improving applicability and efficiency. The ejection cylinder of the ejection component drives the extension shaft to rise along the ejection hole of the first clamping plate. The extension part assists in positioning before machining and ejects the workpiece after machining for quick unloading, replacing manual part removal and further shortening the production cycle. The clamping blocks have a gap that is adapted to the size of the limiting part of the drive component, which not only ensures the movement space of the limiting part, but also forms a mechanical limit on the limiting shaft through the bow-shaped sliding groove, avoiding offset or jamming during clamping and improving the stability and durability of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A clamping device for a metal impeller in a five-axis machining center includes a base and a drive module disposed within the base. A guide rail plate is disposed above the base, and a clamping unit is disposed above the guide rail plate. The guide rail plate is used to guide the movement of the clamping unit, and the clamping unit is used to limit the clamping position. The guide rail plate has a guide rail groove, and the clamping unit is connected to the output end of the drive module via a connecting plate passing through the guide rail groove. The clamping unit includes a quick-assembly adjustment mechanism and a clamping mechanism disposed above the quick-assembly adjustment mechanism. The quick-assembly adjustment mechanism is used to quickly assemble the clamping mechanism, and the clamping mechanism is used to clamp the workpiece. The clamping mechanism includes a mounting base, an ejector assembly disposed at the center of the mounting base, and an ejector assembly disposed outside the ejector assembly. The device comprises several driving components arranged in a ring, a clamping base mounted on the mounting base, a first clamping plate mounted on the clamping base, and a second clamping plate sleeved on the first clamping plate. The first clamping plate has several first side connecting plates arranged circumferentially around its periphery. One end of each first side connecting plate has a through first threaded hole. The first clamping plate has a first limiting plate protruding upward circumferentially in the middle. The center of the first clamping plate has an ejection hole that facilitates the sliding out of the movable end of the ejection component. The second clamping plate includes several clamping blocks. One end of each clamping block is an arc-shaped portion. A second side connecting plate corresponding to the first side connecting plate is provided on one side of the arc-shaped portion. The second side connecting plate has a threaded groove corresponding to the first threaded hole. Each side of the arc-shaped portion has a sliding groove.

[0006] The quick-release adjustment mechanism includes a sliding plate on the guide rail, an adjustment component on each side of the sliding plate, and a support component on the adjustment component.

[0007] The mounting base box has a slot at each end, the depth of which is half that of the mounting base box. The end of the slot is recessed inward to form a step. The bottom of the mounting base box has a support part around each of its four sides.

[0008] The ejection assembly includes an ejection cylinder mounted in the mounting box via a cylinder plate, an extension shaft located at the output end of the ejection cylinder, and an extension portion located at one end of the extension shaft.

[0009] The drive assembly includes a telescopic cylinder, a movable part located at the output end of the telescopic cylinder, and a limiting part located on the movable part.

[0010] The limiting part is provided with limiting shafts on both sides. The size of the limiting shafts matches the sliding groove of the arc-shaped part, and the sliding grooves limit the sliding trajectory of the limiting shafts.

[0011] The beneficial effects of this utility model are as follows: 1. The adjustable connection structure between the four sets of clamping blocks of the second clamping plate and the first clamping plate enables precise clamping of metal impellers of different diameters. Specifically, the four sets of first side connecting plates arranged circumferentially around the first clamping plate are connected to the second side connecting plates on the clamping blocks of the second clamping plate by fastening bolts. When it is necessary to accommodate workpieces of different diameters, the first side connecting plates and the second side connecting plates can be separated by loosening the fastening bolts. Then, the front and rear displacement of the clamping blocks can be adjusted along the scale on the side of the first side connecting plate and the scale corresponding to the side of the second side connecting plate, thereby changing the distance between the arc-shaped part of the clamping block and the first limiting plate of the first clamping plate, and performing preliminary positioning of workpieces of different diameters. This avoids the problem of frequent replacement or adjustment of the clamping jaws required by traditional fixtures and significantly shortens the production preparation time.

[0012] 2. By coordinating the movement of the drive components and cooperating with the arc-shaped sliding groove of the clamping block, a uniform distribution of clamping force is achieved. Specifically, the telescopic cylinders of the four drive components drive the moving part to move, causing the limiting shaft of the limiting part to slide along the arc-shaped sliding groove of the clamping block. The sliding groove limits the sliding trajectory of the limiting shaft, so that the fixed part on one side of the limiting part approaches the workpiece surface synchronously and presses it evenly. Compared with the problem of local stress concentration that is prone to occur in traditional fixtures, the trajectory limitation and the synergistic effect of multiple drive components ensure the uniform distribution of clamping force on the workpiece surface, effectively reducing the deformation of thin-walled impellers caused by stress concentration, and improving machining accuracy and clamping stability.

[0013] 3. The quick-release adjustment mechanism, through the cooperation of its adjustment components and support components, enables rapid loading and unloading of the clamping mechanism. Specifically, the sliding plate of the quick-release adjustment mechanism is equipped with adjustment components on both sides. The adjustment components drive the threaded shaft to rotate via a rotary motor, which in turn drives the nut on the threaded shaft and the synchronous cylinder fixed thereon to move axially. This allows the support shaft of the support component to accurately engage with the slots set at both ends of the mounting base box. When the clamping mechanism needs to be replaced, the adjustment components drive the support component to move in the opposite direction, causing the support shaft to disengage from the slot, thus quickly removing the clamping mechanism. This avoids the complex problem of replacing traditional clamps and significantly improves the applicability and production efficiency of the clamping device.

[0014] 4. Through the cooperation of the ejection assembly and the clamping mechanism, the workpiece is assisted in positioning and quickly unloaded. Specifically, the ejection cylinder of the ejection assembly drives the extension shaft to rise along the ejection hole of the first clamping plate. The extension part will be ejected to a certain height, which can assist in positioning before processing and quickly unload after processing. Compared with the traditional fixture that requires manual removal, this structure simplifies the operation process through cylinder drive and further improves the production cycle.

[0015] 5: The reliability of the clamping process is ensured by the gap design between the clamping blocks and the drive components and the sliding groove limit. Specifically, the gap between the clamping blocks is adapted to the size of the limit part of the drive components, which not only ensures the activity space of the limit part, but also limits the trajectory of the limit shaft by the arc-shaped sliding groove on the side of the clamping block, avoiding the deviation or jamming of the limit part during the clamping process, and improving the stability and durability of the clamping device. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is an exploded perspective view of this utility model.

[0018] Figure 3 This is a perspective view of the clamping unit of this utility model.

[0019] Figure 4 This is one of the cross-sectional views of the clamping mechanism of this utility model.

[0020] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0021] Figure 6 This is the second cross-sectional view of the clamping mechanism of this utility model.

[0022] Figure 7 This is a perspective view of the drive component of this utility model.

[0023] Figure 8 This is a perspective view of the first clamping plate and the second clamping plate of this utility model.

[0024] Reference numerals: 1-Base, 2-Drive module, 3-Guide rail plate, 30-Guide rail groove, 4-Connecting plate, 5-Clamping unit, 6-Quick-release adjustment mechanism, 60-Sliding plate, 61-Adjustment component, 610-Support shaft seat, 611-Threaded shaft, 612-Nut, 613-Rotary motor, 614-Synchronous rod, 62-Support component, 620-Synchronous cylinder, 621-Support shaft, 622-Circular protrusion, 7-Clamping mechanism, 70-Mounting base box, 700-Slot, 701-Step section, 702-Support section, 71-Ejection component, 710- 711-Ejection cylinder, 712-Extending shaft, 713-Extending part, 72-Drive assembly, 720-Telescopic cylinder, 721-Moving part, 722-Limiting part, 7220-Limiting shaft, 7221-Fixing part, 73-Clamping base, 74-First clamping plate, 740-First side connecting plate, 741-First threaded hole, 742-First limiting plate, 743-Ejection hole, 75-Second clamping plate, 750-Clamping block, 751-Arc-shaped part, 752-Second side connecting plate, 753-Threaded groove, 754-Sliding groove, 8-Positioning groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-8As shown, this utility model relates to a clamping device for a metal impeller in a five-axis machining center, including a base 1 and a drive module 2 disposed within the base 1. A guide rail plate 3 is disposed above the base 1, and a clamping unit 5 is disposed above the guide rail plate 3. The guide rail plate 3 is used to guide the movement of the clamping unit 5, and the clamping unit 5 is used to limit the clamping position. The guide rail plate 3 is provided with a guide rail groove 30. The clamping unit 5 is connected to the output end of the drive module 2 through a connecting plate 4 passing through the guide rail groove 30. The clamping unit 5 includes a quick-assembly adjustment mechanism 6 and a clamping mechanism 7 disposed above the quick-assembly adjustment mechanism 6. The quick-assembly adjustment mechanism 6 is used to quickly assemble the clamping mechanism 7, and the clamping mechanism 7 is used to clamp the workpiece. The clamping mechanism 7 includes a mounting base box 70. The mounting base 70 comprises an ejector assembly 71 located at its center, several drive assemblies 72 arranged in a ring around the ejector assembly 71, a clamping base 73 on the mounting base 70, a first clamping plate 74 on the clamping base 73, and a second clamping plate 75 fitted onto the first clamping plate 74. The first clamping plate 74 has several first side connecting plates 740 arranged in a ring around its periphery, one end of each first side connecting plate 740 having a through first threaded hole 741. The first clamping plate 74 has a first limiting plate 742 protruding upwards in the center of its middle, and an ejector hole 743 at its center to facilitate the sliding out of the movable end of the ejector assembly 71. The second clamping plate 75 includes several clamping blocks 750, one end of each clamping block 750... The arc-shaped portion 751 has a second side connecting plate 752 on one side, corresponding to the first side connecting plate 740. The second side connecting plate 752 has a threaded groove 753 corresponding to the first threaded hole 741. Each side of the arc-shaped portion 751 has a sliding groove 754. Its mounting base 70 supports the ejector assembly 71, the drive assembly 72, and the clamping base 73. The ejector assembly 71 drives the extension shaft 712 via the ejector cylinder 711, causing the extension part 713 to slide along the ejector hole 743 to eject the workpiece or assist in positioning. The drive assembly 72 drives the movable part 721 via the telescopic cylinder 720, causing the limiting part 722 to move. The limiting shaft 7220 moves along the arc-shaped portion 751 of the clamping block 750. The arc-shaped slide groove 754 slides to form a trajectory limit, and then the workpiece is clamped by the fixing part 7221 to complete the clamping action; the clamping base 73 is used to install the first clamping plate 74, which is connected to the second side connecting plate 752 on the clamping block 750 of the second clamping plate 75 by fastening bolts through the first side connecting plate 740 arranged in a circumferential manner, and the workpiece is initially limited by the first limiting plate 742 and the arc-shaped part 751 of the clamping block 750 forming a slot 8; the second clamping plate 75 is used to adjust the distance between the arc-shaped part 751 and the first limiting plate 742 by the four sets of clamping blocks 750 when the first side connecting plate 740 and the second side connecting plate 752 are relaxed, thereby adapting to workpieces of different diameters;Each drive component 72 achieves uniform distribution of clamping force through the coordinated movement of its limiting parts 722 and the limiting track of the limiting shaft 7220 via the slide groove 754, thus completing the precise clamping of the workpiece.

[0026] like Figure 1-3 As shown, the quick-installation adjustment mechanism 6 includes a sliding plate 60 mounted on the guide rail plate 3, an adjustment assembly 61 on each side of the sliding plate 60, and a support assembly 62 mounted on the adjustment assembly 61. The bottom of the sliding plate 60 is fixedly connected to the connecting plate 4. The support assembly 62 includes four sets of synchronous cylinders 620 and a support shaft 621 located at the output end of the synchronous cylinders 620. The end of the support shaft 621 is provided with a circular protrusion 622, which can be locked into the stepped portion 701 at one end of the slot 700 of the mounting base box 70 for limiting. Two sets of synchronous cylinders 620 are fixedly mounted on one end of the adjustment assembly 61, and the other two sets of synchronous cylinders 620 slide relative to each other. The adjusting assembly 61 is connected to the moving end of the adjusting assembly 61. The adjusting assembly 61 includes a support shaft seat 610 located at one end of the sliding plate 60, a threaded shaft 611 rotatably connected to the support shaft seat 610, a nut 612 passing through the threaded shaft 611, and a rotary motor 613 located at the other end of the threaded shaft 611. The nut 612 is fixedly connected to the bottom of a synchronous cylinder 620, and a synchronous rod 614 is fixedly connected between the two nuts 612. When the rotary motor 613 is working, its output end drives the threaded shaft 611 to rotate. When the threaded shaft 611 rotates, it causes the threaded nut 612 to undergo axial displacement, thereby causing the synchronous cylinder 620 located on it to move synchronously.

[0027] like Figure 1-2 As shown in Figure 4-8, each end of the mounting base 70 has a slot 700, the depth of which is half the depth of the mounting base 70. A stepped portion 701 is recessed inward at the end of the slot 700. A support portion 702 is provided around the bottom of the mounting base 70. The height of the support portion 702 is approximately equal to the height of the support shaft 621 when the synchronous cylinder 620 in the support assembly 62 drives it to extend, facilitating the insertion of the support shaft 621 into the slots 700 at both ends of the mounting base 70. The ejection assembly 71 includes an ejection cylinder 711 installed inside the mounting base 70 via a cylinder plate 710, and an output end of the ejection cylinder 711. The top extension shaft 712 and the top extension portion 713 provided at one end of the top extension shaft 712 are used to push the top extension shaft 712 up when the ejection cylinder 711 drives the top extension shaft 712 to rise, the top extension shaft 712 drives the top extension portion 713 to rise, and the top extension portion 713 pushes out the workpiece; the drive assembly 72 includes a telescopic cylinder 720, a movable portion 721 provided at the output end of the telescopic cylinder 720, and a limiting portion 722 provided on the movable portion; the limiting portion 722 is provided with limiting shafts 7220 on both sides, the size of the limiting shafts 7220 matches the slide groove 754 of the arc-shaped portion 751, and the sliding trajectory of the limiting shafts 7220 is limited by the slide groove 754.

[0028] like Figure 1-2 As shown in Figures 4-8, the clamping base 73 is further fixedly mounted on the mounting box 70 by bolts. The clamping base 73 can be square, round, or other shapes to facilitate the installation of the first clamping plate 74. The bottom dimension of the first clamping plate 74 is smaller than that of the clamping base 73. In this embodiment, the first clamping plate 74 is provided with four sets of first side connecting plates 740. The four sets of first side connecting plates 740 are circumferentially and equidistantly connected to the outer periphery of the first clamping plate 74. Each set of first side connecting plates 740 is respectively connected to a second side connecting plate 752 of a second clamping plate 75. The corresponding second clamping plate 75 also includes four sets of clamping blocks 750, which are fastened by bolts passing through the threaded slots 753 and threaded into the first threaded holes 741. The first side connecting plate 740 and the second side connecting plate 752 are securely connected by tightening the fastening bolts. Four sets of clamping blocks 750, with their arc-shaped portions 751 circumferentially surrounding the first limiting plate 742, form a locking groove 8 between the arc-shaped portions 751 and the first limiting plate 742. This locking groove 8 is used to position the workpiece. The width of the locking groove 8 is adjusted by loosening the fastening bolts to loosen the connection between the first side connecting plate 740 and the second side connecting plate 752. Adjusting the clamping blocks 750 back and forth changes the distance between the arc-shaped portions 751 and the first limiting plate 742, thus accommodating different workpiece diameters. The first side connecting plate 740 has a scale on its side, and the second side connecting plate 752... A scale is provided on the side corresponding to the scale to facilitate consistent adjustment of the displacement of each second side connecting plate 752; there is a certain gap between the clamping blocks 750, and the width of the gap is adapted to the size of the limiting part 722 of the drive assembly 72, which ensures that the movement space of the limiting part 722 is not restricted, and the sliding groove 754 on the side of the clamping block 750 can limit the limiting shaft 7220 of the limiting part 722. The sliding groove 754 is an arc-shaped groove. The limiting part 722 has a fixing part 7221 protruding to one side. The end face of the fixing part 7221 is provided with a flexible layer to prevent scratching the surface of the workpiece when in contact with it. After the mounting base 70, clamping base 73 and first clamping plate 74 are installed, they are placed between the gaps. The gap position is provided with a through hole to facilitate the extension of the output shaft of the telescopic cylinder 720. When the telescopic cylinder 720 retracts downward, the output shaft pulls the movable part 721. In this embodiment, the movable part 721 is a sphere. The connection between the limiting part 722 and the movable part 721 is a spherical cavity with a diameter corresponding to the sphere. The movable part 721 can rotate within the spherical cavity of the limiting part 722. The movable part 721 drives the limiting part 722 to move. At this time, the limiting part 722 moves in an arc along the arc-shaped groove through the limiting shaft 7220, so that the fixing part 7221 on one side of the limiting part 722 approaches the workpiece until the workpiece is pressed, thus completing the clamping of the workpiece. The movable part 721 can also be a hinge mechanism or other rotatable structure.

[0029] Workflow: During operation, the connecting plate 4 is first moved along the guide rail groove 30 of the guide rail plate 3 by the drive module 2 inside the base 1, adjusting the clamping unit 5 to a suitable position; then, the sliding plate 60 in the quick-release adjustment mechanism 6 is laterally positioned by the adjustment component 61. The adjustment component 61 drives the threaded shaft 611 to rotate through the rotary motor 613, causing the nut 612 and the synchronous cylinder 620 fixed thereon to move axially, so that the support shaft 621 of the support component 62 accurately engages with the slots 70 at both ends of the mounting base box 70. 0; Next, the metal impeller workpiece to be processed is placed into the clamping mechanism 7. The workpiece is initially positioned by the locking groove 8 formed by the first clamping plate 74 and the second clamping plate 75. The first limiting plate 742 of the first clamping plate 74 and the arc-shaped portion 751 of the clamping block 750 of the second clamping plate 75 form a ring-shaped locking position. The position of the four sets of clamping blocks 750 is adjusted by loosening the fastening bolts between the first side connecting plate 740 and the second side connecting plate 752, and adjusting the back-and-forth displacement of the clamping blocks 750 along the scale and ruler. After adjusting the distance between the arc-shaped portion 751 and the first limiting plate 742 to match the workpiece diameter, the locking bolts are tightened to complete the initial fixation. At this time, the ejector cylinder 711 of the ejector assembly 71 is activated, driving the extension shaft 712 to rise a certain height along the ejector hole 743, and the extension portion 713 assists in machining and positioning. Subsequently, the telescopic cylinder 720 of the drive assembly 72 works, and the output end pulls the movable portion 721 to move the limiting portion 722. The limiting shaft 7220 of the limiting portion 722 slides along the arc-shaped groove 754 of the arc-shaped portion 751 of the clamping block 750 (groove). 754 forms a trajectory limit for the limiting shaft 7220, driving the fixing part 7221 to approach the workpiece side. Through the coordinated movement of the four sets of drive components 72, the fixing part 7221 evenly presses the workpiece surface to complete the precise clamping. After processing, the ejector cylinder 711 drives the extension part 713 to eject the workpiece again. When the clamping mechanism 7 needs to be replaced, the adjustment component 61 in the quick-release adjustment mechanism 6 drives the support component 62 away from the slots 700 at both ends of the mounting base box 70, so that the clamping mechanism 7 can be removed for replacement, which is convenient and quick.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A clamping device for metal impeller of five-axis machining center, comprising a base and a driving module arranged in the base, characterized in that: A guide rail plate is provided above the base, and a clamping unit is provided above the guide rail plate. The guide rail plate is used to guide the movement of the clamping unit, and the clamping unit is used to limit the clamping. The guide rail plate has a guide rail groove, and the clamping unit is connected to the output end of the drive module through the guide rail groove via a connecting plate. The clamping unit includes a quick-release adjustment mechanism and a clamping mechanism provided above the quick-release adjustment mechanism. The quick-release adjustment mechanism is used to quickly assemble the clamping mechanism, and the clamping mechanism is used to clamp the workpiece. The clamping mechanism includes a mounting base box, an ejector assembly located in the center of the mounting base box, and a plurality of drive assemblies arranged in a ring around the ejector assembly. The base box includes a clamping base, a first clamping plate on the clamping base, and a second clamping plate sleeved on the first clamping plate. The first clamping plate has several first side connecting plates arranged circumferentially around its periphery. One end of each first side connecting plate has a through first threaded hole. The first clamping plate has a first limiting plate protruding upward circumferentially in the middle. The center of the first clamping plate has an ejection hole that facilitates the sliding out of the movable end of the ejection component. The second clamping plate includes several clamping blocks. One end of each clamping block is an arc-shaped portion. A second side connecting plate corresponding to the first side connecting plate is provided on one side of the arc-shaped portion. The second side connecting plate has a threaded groove corresponding to the first threaded hole. Each side of the arc-shaped portion has a sliding groove.

2. A clamping device for metal impeller of five-axis machining center according to claim 1, characterized in that: The quick-release adjustment mechanism includes a sliding plate on the guide rail, an adjustment component on each side of the sliding plate, and a support component on the adjustment component.

3. The clamping device for a metal impeller in a five-axis machining center according to claim 1, characterized in that: The mounting base box has a slot at each end, the depth of which is half that of the mounting base box. The end of the slot is recessed inward to form a step. The bottom of the mounting base box has a support part around each of its four sides.

4. The clamping device for metal impeller of five-axis machining center according to claim 1, characterized in that: The ejection assembly includes an ejection cylinder mounted in the mounting box via a cylinder plate, an extension shaft located at the output end of the ejection cylinder, and an extension portion located at one end of the extension shaft.

5. The clamping device for metal impeller of five-axis machining center according to claim 1, characterized in that: The drive assembly includes a telescopic cylinder, a movable part located at the output end of the telescopic cylinder, and a limiting part located on the movable part.

6. The clamping device for a metal impeller in a five-axis machining center according to claim 5, characterized in that: The limiting part is provided with limiting shafts on both sides. The size of the limiting shafts matches the sliding groove of the arc-shaped part, and the sliding grooves limit the sliding trajectory of the limiting shafts.

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