High-precision closed impeller split manufacturing process and manufacturing equipment

Abstract

The invention relates to the technical field of closed impeller production and processing, in particular to a high-precision closed impeller split manufacturing process and manufacturing equipment, comprising a milling machine mechanism comprising a machine body and a three-axis translation milling head fixedly arranged on the rear side wall of an operation bin of the machine body; the three-axis rotating mechanism is arranged in the operation bin below the three-axis translation milling head and comprises a transverse rotating assembly, a first vertical rotating assembly and a second vertical rotating assembly, the transverse rotating assembly comprises a first outer gear ring, a gear column meshed with the first outer gear ring and first U-shaped plates symmetrically arranged on the two sides of the first outer gear ring, and limiting rings are fixedly arranged on the upper end face and the lower end face of the first outer gear ring; and the clamping mechanism is fixedly arranged on the inner side of the first outer gear ring and comprises a hollow matching disc and a plurality of arc clamping pieces arranged in a hollow groove in the matching disc in the circumferential direction in an array mode, all-directional automatic and high-precision machining of the closed impeller split body can be achieved through the manufacturing equipment, the labor intensity of workers is effectively relieved, and the overall practicability is good.

Description

Technical Field

[0001] The present invention relates to the technical field of closed impeller production and processing, and in particular to a high-precision closed impeller split manufacturing process and manufacturing equipment. Background Art

[0002] Impellers are widely used in fluid machinery. If connected to power machinery, they can convert the mechanical energy of the power machinery into the static pressure energy and dynamic pressure energy of the working fluid. They play an important role in industrial applications. Impellers can be roughly divided into three types according to the assembly and structure of the blades: open impellers, closed impellers, and semi-open impellers. Closed impellers are widely used in centrifugal compressors and other equipment because of their high operating efficiency, long-term stable operation, and small axial thrust of the pump. During the processing of closed impellers, milling is mainly used for processing. However, since there are a large number of curved surfaces on the surface of closed impellers, it is difficult for traditional milling machines to complete milling work with high precision. The five-axis linkage CNC center (five-axis movement of three linear coordinates and two rotating coordinates) is the main milling equipment in the processing of closed impellers. For example, the existing public document CN107900394B-five-axis linkage machining center and the existing public document CN114406733B-five-axis linkage CNC machine tool both disclose a five-axis linkage milling equipment. Although the above equipment can effectively realize the milling processing of closed impellers, the existing five-axis linkage CNC center still has the following deficiencies in the actual closed impeller processing process: 1. The existing five-axis linkage CNC center has only two rotation coordinates, and one of the vertical rotation coordinates cannot complete a 180° rotation. However, because the closed impeller accessories need to be milled at both ends, the existing five-axis linkage CNC center requires the staff to turn the entire accessory over and re-clamp it after one side is milled before subsequent milling can be performed, which indirectly leads to low work efficiency and increased labor intensity; 2. The existing five-axis linkage CNC center clamps the workpiece through a clamping mechanism, and then fixes the clamped workpiece in the five-axis linkage CNC. This results in that in the actual operation process, the part clamped by the clamping mechanism cannot be milled, resulting in the low practicality of the existing five-axis linkage CNC center for milling the workpiece; Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the fact that the above-mentioned existing closed impeller split manufacturing equipment has the problems of high labor intensity and low production efficiency in actual use, a high-precision closed impeller split manufacturing equipment is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a high-precision closed impeller split manufacturing equipment, comprising: a milling machine mechanism, including a machine body and a three-axis translation milling head fixed on the rear side wall of the machine body operating chamber; a three-axis rotation mechanism arranged in the operating chamber below the three-axis translation milling head, including a horizontal rotation component, a vertical rotation component one and a vertical rotation component two, the horizontal rotation component including a first outer gear ring, a gear column meshing with the first outer gear ring and a first U-shaped plate symmetrically arranged on both sides of the first outer gear ring, the upper and lower end faces of the first outer gear ring are fixed with limit rings, the open end of the first U-shaped plate is sleeved on the outer side of the first outer gear ring, and the upper and lower inner walls of the first U-shaped plate are provided with arc grooves for the clearance fit of the limit ring; the vertical rotation component one includes a toothed rod, a first rotating column, a locking plate and an electromagnetic block, the vertical rotation component two includes a U-shaped frame and an L-shaped frame, the sealing A first rotating column is fixedly provided on the outer wall of the closed end, and the first rotating column is rotatably sleeved on the L-shaped frame through a rolling bearing, and the horizontal plates of the two L-shaped frames are symmetrically fixed at the upper end positions of the inner wall of the U-shaped frame, and a second toothed disk is fixedly sleeved on one of the first rotating columns, and the second toothed disk is meshed with a bar gear rod on one side, a first cylinder is fixedly provided at the lower end of the bar gear rod, and the fixed section of the first cylinder is fixedly connected to the L-shaped frame, and a clamping block is symmetrically fixedly provided on the side wall of the free end of the first rotating column provided with the second toothed disk, a locking plate is arranged between the L-shaped frame and the U-shaped frame, and a clamping groove for gap fitting of the clamping block is opened on the locking plate, and an electromagnetic block for magnetic adsorption of the locking plate is fixedly provided on one side surface of the vertical plate of the L-shaped frame; and a clamping mechanism fixedly provided on the inner side of the first outer gear ring, including a hollow mating disk and a plurality of arc clips arranged in a circumferential array in the hollow groove of the mating disk.

[0006] The beneficial effects of the present invention are as follows: when the manufacturing equipment is in use, the transverse rotation component can realize the rotation of the clamping mechanism in the horizontal direction, and the vertical rotation component 2 can realize the rotation of the clamping mechanism in the vertical direction. In combination with the three-axis translation milling head, the traditional five-axis linkage milling can be realized. After the milling of the workpiece to be processed above the clamping mechanism is completed, the electromagnetic block is energized to magnetically adsorb the locking plate, the card slot on the locking plate is separated from the card block, and the locking state of the first rotating column is lost. Then, under the extension and retraction of the first cylinder, the gear rod can be driven to move in the vertical direction. Because the gear rod and the first rotating column are connected, the gear rod and the first rotating column are connected. The two toothed discs are engaged, and during the movement of the rack rod, the second toothed disc will drive the first rotating column to rotate, and finally the first U-shaped plate drives the first outer tooth ring to rotate 180° with the first rotating column as the axis. The workpiece to be processed on the clamping mechanism is flipped 180°, and then the electromagnetic block is powered off, and the locking plate re-locks the first rotating column. At this time, with the cooperation of the three-axis translation milling head, the vertical rotation component 2 and the horizontal rotation component, the milling of the area to be processed under the original clamping mechanism can be achieved. This setting uses the six-axis linkage setting to perform efficient milling while reducing the labor intensity of the staff, and has high production efficiency.

[0007] As a preferred solution of a high-precision closed impeller split manufacturing equipment of the present invention, wherein: a gear column is arranged on the inner side of one of the first U-shaped plates, an output shaft is fixedly sleeved in the gear column, both ends of the output shaft are rotatably connected to the side plates of the first U-shaped plate through rolling bearings, one end of the output shaft extends to the outside of the first U-shaped plate and is embedded in the output end of the first motor, and the first motor is fixed on the outer side wall of the first U-shaped plate.

[0008] As a preferred solution of the high-precision closed impeller split manufacturing equipment of the present invention, wherein: the first guide columns are symmetrically slidably sleeved on both sides of the lower end of the locking plate, and the two ends of the first guide columns are respectively fixed on the U-shaped frame and the L-shaped frame, and a first spring is slidably sleeved on the first guide column on the other side of the locking plate where the electromagnetic block is provided, and the two ends of the first spring are respectively fixed on the U-shaped frame and the L-shaped frame; a limit strip is fixedly provided on one side surface of the toothed rod in the vertical direction, a limit plate is fixedly provided on one side surface of the L-shaped frame in the vertical direction, and a limit groove for the clearance fit of the limit strip is opened on the limit plate.

[0009] As a preferred solution of the high-precision closed impeller split manufacturing equipment of the present invention, second rotating columns are symmetrically fixed on the outer walls at both ends of the U-shaped frame, and the second rotating columns are rotatably connected to the inner wall of the machine body operating chamber through rolling bearings, and the second rotating column is coaxially arranged with the first rotating column.

[0010] As a preferred solution of the high-precision closed impeller split manufacturing equipment of the present invention, wherein: an inner connecting ring is fixedly provided on the inner wall of the first outer gear ring, and matching bolts are fixedly provided on the top surface of the inner connecting ring along a circumferential array, through holes are fixedly provided on the matching disk along a circumferential array, and the through holes are fixed by matching bolts; a first T-shaped column is symmetrically fixed on one side surface of the arc clamp, and the two first T-shaped columns are slidably sleeved on the same positioning plate, a locking bolt is spirally sleeved on the positioning plate, and one end of the locking bolt abuts against one side surface of the arc clamp.

[0011] In view of the problem that the existing manufacturing equipment is unable to automatically mill the clamping part of the clamping mechanism, the high-precision closed impeller split manufacturing equipment of the present invention is further optimized and improved, wherein: it also includes a displacement mechanism arranged at the lower end position of the inner side of the U-shaped frame, the displacement mechanism includes a clamping cylinder, an electromagnetic ring, a circular ring frame, a first gear disk, an arc expansion plate and a frustum; the clamping cylinder is coaxially arranged with the first outer gear ring, and a plurality of arc expansion plates with L-shaped vertical cross-sections are arranged in a circumferential array on the outer side of the upper end of the clamping cylinder, and one side of the vertical plate of the arc expansion plate is fixedly connected to the arc transmission plate through a linkage column, and the linkage column is slidably sleeved on the side wall of the clamping cylinder and is located inside the clamping cylinder. A fifth spring is slidably sleeved on the linkage column on the side; a plurality of arc transmission plates are concentrically arranged to form a cylindrical sleeve, and a frustum body is coaxially arranged below the cylindrical sleeve, a cylindrical body fixed on the top surface of the frustum body is slidably sleeved in the cylindrical sleeve, a threaded shaft is spirally sleeved on the middle part of the bottom surface of the frustum body, the lower end of the threaded shaft slides through the bottom plate of the clamp and is embedded in the output end of the second motor, and the second motor is fixed on the bottom surface of the clamp; a circular frame is cooperatively arranged on the outer side of the lower end of the clamp, a second U-shaped plate is fixedly arranged on the bottom surface of the circular frame outside the second motor, and a second cylinder is fixedly arranged in the middle part of the bottom surface of the second U-shaped plate, and a fixed section of the second cylinder is fixedly sleeved on the bottom plate of the U-shaped frame.

[0012] Another beneficial effect of the present invention is that when the manufacturing equipment is in use, after the areas outside the clamping mechanism are milled, the staff can drive the clamping barrel to move upward by controlling the extension of the second cylinder. After moving to the groove pre-opened in the workpiece to be processed, the second motor starts to rotate to realize the upward movement of the frustum body, and the frustum body synchronously squeezes multiple arc transmission plates outward. Under the action of the squeezing force, the arc expansion plate abuts against the inner wall of the reserved groove to clamp the workpiece to be processed. After the clamping is completed, the second cylinder continues to move upward, and the workpiece to be processed is separated from the clamping mechanism. In this way, the three-axis translation milling head can be used to mill the clamping part of the clamping mechanism, thereby reducing the labor intensity of the staff and having good overall practicality.

[0013] As a preferred solution of a high-precision closed impeller split manufacturing device of the present invention, a convex block is fixedly provided on the bottom surface of the positioning plate, and a convex groove for gap matching of the convex block is provided on the top surface of the matching disk, and second guide columns are symmetrically slidably sleeved on both sides of the lower end of the convex block, and both ends of the second guide column are fixed on the inner side wall of the convex groove, and a second spring is slidably sleeved on the second guide column on the other side of the convex block with the arc clip, and the two ends of the second spring are respectively fixed on the convex block and the matching disk; the convex block between the two second springs A top plate is provided on one side, and third guide columns are symmetrically fixed on both sides of the bottom surface of the top plate, and the lower ends of the two third guide columns slide through the matching disk and extend to the bottom of the matching disk and are fixedly connected by connecting plates, and a third spring is slidably sleeved on the third guide column located on the inner side of the convex groove; an electromagnetic ring is provided below the rotating track surface of the top plate, a supporting ring is fixed on the bottom surface of the electromagnetic ring, and a plurality of second T-shaped columns are fixed on the bottom surface of the supporting ring along a circumferential array, the second T-shaped column is slidably sleeved on the circular ring frame, and a fourth spring is slidably sleeved on the second T-shaped column between the circular ring frame and the supporting ring.

[0014] As a preferred solution of the high-precision closed impeller split manufacturing equipment of the present invention, wherein: a fixed ring is slidably sleeved on the outer side of the lower end of the clamping cylinder, and the fixed ring is coaxially fixed on the inner wall of the circular ring frame, a second outer toothed ring is fixedly sleeved on the outer wall of the clamping cylinder above the fixed ring, the second outer toothed ring is transmitted to the third toothed disc through a chain, a third rotating column is fixedly sleeved on the third toothed disc, the lower end of the third rotating column is rotatably sleeved on the extension rod, and at the same time, the upper end of the third rotating column is fixedly connected to the first toothed disc for meshing with the first outer toothed ring, and the extension rod is fixedly connected to the outer wall of the circular ring frame.

[0015] As a preferred solution of the high-precision closed impeller split manufacturing equipment of the present invention, wherein: positioning columns are symmetrically fixed on the inner bottom surface of the clamping barrel on both sides of the threaded shaft, and the upper ends of the positioning columns are slidably sleeved on the truncated cone body; third T-shaped columns are symmetrically fixed on the bottom surface of the circular ring frame on both sides of the second cylinder, and the third T-shaped columns are slidably sleeved on the U-shaped frame; a matching groove is opened on the inner wall of the fixed ring along the circumferential direction, and a matching ring that matches the matching groove clearance is fixed on the outer wall of the clamping barrel.

[0016] In addition, the present invention also provides the following technical solutions: a high-precision closed impeller split manufacturing process, the above-mentioned high-precision closed impeller split manufacturing equipment is operated according to the following steps; S1: Casting the upper cover plate and the impeller plate separately by mold casting; S2: Cutting a docking groove on the upper cover plate for mating with the boss on the impeller plate by a cutting device; S3: The upper cover plate or the impeller plate is coaxially clamped in the clamping mechanism, and then the three-axis translation milling head, the horizontal rotation component and the vertical rotation component 2 are started to work together, and the three-axis translation milling head mills the area above the clamping mechanism; S4: By controlling the vertical rotation component 1 to work, the clamping mechanism drives the workpiece to be processed to rotate 180° in the vertical direction, and the three-axis translation milling head mills the area below the clamping mechanism; S5: The clamping mechanism is reset to the S3 state, and the displacement mechanism is controlled to clamp the workpiece. At the same time, the clamping mechanism loses its grip on the workpiece, and the three-axis translation milling head mills the clamping part of the clamping mechanism. S6: After the milling is completed, the boss portion of the impeller plate is fitted into the docking groove, and then the upper cover plate and the impeller are welded by laser filler welding; S7: After welding is completed, the weldment is clamped again by the clamping mechanism, and the three-axis translation milling head is used to mill the welding position; S8: After milling is completed, a dynamic balancing test is performed on the entire closed impeller to obtain a high-precision closed impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a schematic diagram of the overall structure of a high-precision closed impeller split manufacturing equipment in the present invention.

[0018] Figure 2 It is a schematic diagram of the coordination of the three-axis rotation mechanism, the clamping mechanism and the displacement mechanism in the present invention.

[0019] Figure 3 For the present invention Figure 2 Right rear view of the structure.

[0020] Figure 4 It is a schematic diagram of the coordination of the clamping mechanism and the transverse rotation assembly in the present invention.

[0021] Figure 5 This is a diagram of the clamping mechanism and the lateral rotation component to be matched in the present invention.

[0022] Figure 6 It is a vertical cross-sectional view of the clamping mechanism of the present invention at the axis position of the locking bolt.

[0023] Figure 7 It is a vertical cross-sectional view of the clamping mechanism of the present invention at the radial position of the locking bolt.

[0024] Figure 8 It is a schematic diagram of the coordination of the vertical rotation component 1 and the vertical rotation component 2 in the present invention.

[0025] Fig. 9 For the present invention Figure 8 Exploded view of the structure.

[0026] Fig.10 It is a schematic diagram of the overall structure of the displacement mechanism in the present invention.

[0027] Fig.11 It is an exploded diagram of the displacement mechanism in the present invention.

[0028] Fig.12 It is a cross-sectional view of the displacement mechanism in the present invention in the vertical direction. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1 Reference Figure 1 , Figure 2 , Figure 3 and Figure 4, which is the first embodiment of the present invention, and this embodiment provides a high-precision closed impeller split manufacturing equipment. When the closed impeller split manufacturing equipment is in use, the staff will match the workpiece to be processed on the three-axis rotation mechanism 200 through the clamping mechanism 300, and through the cooperation of the three-axis translation milling head 102 and the three-axis rotation mechanism 200, the milling processing of the workpiece to be processed is realized.

[0034] Specifically, it includes a milling machine mechanism 100, including a body 101 and a three-axis translational milling head 102 fixed on the rear side wall of the operating chamber of the body 101, the body 101 includes a power supply milling head, a numerical control system, etc., the numerical control system can automatically control various electrical components in the equipment, the three-axis translational milling head 102 can control the milling cutter to translate on the three axes of xyz, because the above are all existing technologies, they are not described here; a three-axis rotation mechanism 200 arranged in the operating chamber below the three-axis translational milling head 102, including a horizontal rotation component 201, a vertical rotation component 1 202 and a vertical rotation component 2 203; and a clamping mechanism 300 fixed on the inner side of the first outer gear ring 201a, including a hollow mating disk 301 and a plurality of arc clips 302 arranged in a circumferential array in the hollow groove of the mating disk 301.

[0035] See Figure 2 , Figure 8 and Fig. 9 As shown, the transverse rotation assembly 201 includes a first outer gear ring 201a, a gear column 201b meshing with the first outer gear ring 201a, and a first U-shaped plate 201c symmetrically arranged on both sides of the first outer gear ring 201a, and the upper and lower end surfaces of the first outer gear ring 201a are fixed with a limit ring 201a-1, and the open end of the first U-shaped plate 201c is sleeved on the outer side of the first outer gear ring 201a, so as to support and limit the first outer gear ring 201a, and the upper and lower inner walls of the first U-shaped plate 201c are provided with arc grooves 201 for clearance matching of the limit ring 201a-1. c-1, this arrangement can play a role in limiting and guiding the movement of the first outer gear ring 201a, the gear column 201b is arranged on the inner side of one of the first U-shaped plates 201c, and an output shaft 201b-1 is fixedly sleeved in the gear column 201b, and both ends of the output shaft 201b-1 are rotatably connected to the side plates of the first U-shaped plate 201c through rolling bearings, one end of the output shaft 201b-1 extends to the outer side of the first U-shaped plate 201c and is embedded in the output end of the first motor 201b-2, and the first motor 201b-2 is fixedly arranged on the outer side wall of the first U-shaped plate 201c; When the above arrangement is in use, the output shaft 201b-1 can drive the gear column 201b to rotate through the operation of the first motor 201b-2. Because the gear column 201b and the first outer gear ring 201a are meshed, the first outer gear ring 201a can drive the clamping mechanism 300 to rotate in the horizontal direction.

[0036] See Figure 2 , Figure 3 , Figure 8 and Fig. 9 As shown, the vertical rotation component 1 202 includes a toothed rod 202a, a first rotating column 202b, a locking plate 202c and an electromagnetic block 202d, and the vertical rotation component 203 includes a U-shaped frame 203a and an L-shaped frame 203b. The first rotating column 202b is fixedly provided on the outer wall of the closed end of the first U-shaped plate 201c, and the first rotating column 202b is rotatably sleeved on the L-shaped frame 203b through a rolling bearing. The transverse plates of the two L-shaped frames 203b are symmetrically fixed at the upper end position of the inner wall of the U-shaped frame 203a, and a second gear disc 202b-1 is fixedly sleeved on one of the first rotating columns 202b, and the second gear disc 202b-1 is fixedly sleeved on the second gear disc 202b-2. The disk 202b-1 is meshed with the bar rack 202a on one side, the lower end of the bar rack 202a is fixedly provided with a first cylinder 202a-1, and the fixed section of the first cylinder 202a-1 is fixedly connected to the L-shaped frame 203b, a limit bar 202a-2 is fixedly provided on one side surface of the bar rack 202a in the vertical direction, a limit plate 203b-1 is fixedly provided on one side surface of the L-shaped frame 203b in the vertical direction, and a limit groove 203b-2 for clearance fit of the limit bar 202a-2 is provided on the limit plate 203b-1, and this arrangement can play a role of limiting and guiding the movement of the bar rack 202a; When the above-mentioned arrangement is in use, the extension and retraction of the first cylinder 202a-1 can drive the gear rod 202a to move in the vertical direction. Due to the meshing arrangement between the gear rod 202a and the second gear plate 202b-1, when the gear rod 202a moves up and down, the first rotating column 202b can be driven to rotate by the second gear plate 202b-1, thereby realizing that the first rotating column 202b drives the first outer gear ring 201a to rotate with the first rotating column 202b as the axis.

[0037] See Figure 8 and Fig. 9As shown, a block 202b-2 is symmetrically fixed on the side wall of the free end of the first rotating column 202b provided with the second toothed disc 202b-1, and the locking plate 202c is arranged between the L-shaped frame 203b and the U-shaped frame 203a, and a slot 202c-3 for the clearance fit of the block 202b-2 is opened on the locking plate 202c, and an electromagnetic block 202d for magnetically adsorbing the locking plate 202c is fixed on one side of the vertical plate of the L-shaped frame 203b, and two lower ends of the locking plate 202c are fixed. The first guide column 202c-1 is symmetrically slidably sleeved on the side, and the two ends of the first guide column 202c-1 are respectively fixed on the U-shaped frame 203a and the L-shaped frame 203b. The first spring 202c-2 is slidably sleeved on the first guide column 202c-1 on the other side of the locking plate 202c with the electromagnetic block 202d, and the two ends of the first spring 202c-2 are respectively fixed on the U-shaped frame 203a and the L-shaped frame 203b. This arrangement can realize the reset of the locking plate 202c; When the above-mentioned arrangement is in use, the locking plate 202c can be magnetically adsorbed by energizing the electromagnetic block 202d, so that the locking plate 202c slides on the first guide column 202c-1, and the block 202b-2 is disengaged from the slot 202c-3, thereby realizing the free rotation of the first rotating column 202b. When the electromagnetic block 202d is powered off and demagnetized, the locking plate 202c can be reset under the action of the elastic force of the first spring 202c-2, so that the block 202b-2 and the slot 202c-3 are re-engaged, thereby realizing the limit of the first rotating column 202b after rotating 180°.

[0038] For further details, see Figure 1 and Figure 2 As shown, second rotating columns 203a-1 are symmetrically fixed on the outer walls at both ends of the U-shaped frame 203a, and the second rotating column 203a-1 is rotatably connected to the inner wall of the operating compartment of the body 101 through a rolling bearing, and the second rotating column 203a-1 is coaxially arranged with the first rotating column 202b, so that the U-shaped frame 203a can be rotated around the second rotating column 203a-1 as the axis, and one end of one of the second rotating columns 203a-1 cooperates with the driving device in the body 101 to provide driving force.

[0039] See Figure 4 and Figure 5As shown, an inner ring 201a-2 is fixedly provided on the inner wall of the first outer toothed ring 201a, and matching bolts 201a-3 are fixedly provided on the top surface of the inner ring 201a-2 along a circumferential array, and through holes 301a are fixedly provided on the matching disk 301 along a circumferential array, and the through holes 301a are matched and fixed by matching bolts 201a-3. This arrangement can realize a detachable connection between the matching disk 301 and the first outer toothed ring 201a, and first T-shaped columns 302a are symmetrically fixed on one side surface of the arc clamp 302, and two first T-shaped columns 302a are slidably sleeved on the same positioning plate 303, and this arrangement can realize a limiting and guiding role for the movement of the arc clamp 302, and a locking bolt 304 is spirally sleeved on the positioning plate 303, and one end of the locking bolt 304 is abutted against a side surface of the arc clamp 302; When the above arrangement is in use, when the staff needs to fit the workpiece to be processed on the clamping mechanism 300, the staff first moves the workpiece to be processed to the hollow groove position, and then rotates the locking bolt 304 to make the locking bolt 304 rotate and feed toward the side of the arc clamp 302. The arc clamp 302 is squeezed and fits on the side wall of the workpiece to be processed. Multiple arc clamps 302 are used to simultaneously cooperate with the workpiece to be processed to achieve clamping and fixation of the workpiece to be processed.

[0040] Example 2 Reference Figure 2 , Fig.10 , Fig.11 and Fig.12 , which is the second embodiment of the present invention, is based on the previous embodiment, except that this embodiment is proposed in order to facilitate the automated milling of the clamping part of the clamping mechanism 300, thereby improving the degree of automation and efficiency of machining.

[0041] Specifically, it also includes a displacement mechanism 400 disposed at the lower end of the inner side of the U-shaped frame 203a, and the displacement mechanism 400 includes a clamping cylinder 401, an electromagnetic ring 402, a circular ring frame 403, a first toothed disc 404, an arc expansion plate 405 and a truncated cone body 406; The clamping cylinder 401 is coaxially arranged with the first outer gear ring 201a, and a plurality of arc expansion plates 405 with L-shaped vertical cross-sections are arranged in a circumferential array on the outer side of the upper end of the clamping cylinder 401, which can abut against the inner wall of the reserved groove of the workpiece to be processed on the one hand, and support the workpiece from the bottom on the other hand, and a side surface of the vertical plate of the arc expansion plate 405 is fixedly connected with an arc transmission plate 405a through a linkage column 405a-1, and the linkage column 405a-1 is slidably sleeved on the side wall of the clamping cylinder 401, and a fifth spring 405a-2 is slidably sleeved on the linkage column 405a-1 located on the inner side of the clamping cylinder 401, thereby realizing the resetting of the arc transmission plate 405a; the plurality of arc transmission plates 405a are concentrically arranged A cylindrical sleeve is formed, and a truncated cone body 406 is coaxially arranged below the cylindrical sleeve, a cylindrical body 406a fixed on the top surface of the truncated cone body 406 is slidably sleeved in the cylindrical sleeve, a threaded shaft 406b is spirally sleeved in the middle of the bottom surface of the truncated cone body 406, the lower end of the threaded shaft 406b slides through the bottom plate of the clamp 401 and is embedded in the output end of the second motor 406b-1, and the second motor 406b-1 is fixed on the bottom surface of the clamp 401, and positioning columns 401c are symmetrically fixed on the inner bottom surface of the clamp 401 on both sides of the threaded shaft 406b, and the upper ends of the positioning columns 401c are slidably sleeved on the truncated cone body 406, this arrangement can limit the truncated cone body 406 to prevent the truncated cone body 406 from rotating; When the above-mentioned arrangement is in use, the rotation of the threaded shaft 406b can be realized through the operation of the second motor 406b-1. Due to the spiral matching arrangement between the threaded shaft 406b and the frustum body 406, the frustum body 406 can be moved in the vertical direction. The special shape of the frustum body 406 allows the multiple arc transmission plates 405a to be synchronously expanded when the frustum body 406 moves upward, and the arc expansion plate 405 will move outward, so that it can be abutted against the inner wall of the reserved groove. When the frustum body 406 moves downward, the multiple arc transmission plates 405a can be synchronously reset by resetting the fifth spring 405a-2, thereby clamping the workpiece to be processed.

[0042] A circular frame 403 is provided on the outer side of the lower end of the clamp 401, a second U-shaped plate 403a-1 is fixedly provided on the bottom surface of the circular frame 403 outside the second motor 406b-1, and a second cylinder 403a is fixedly provided in the middle of the bottom surface of the second U-shaped plate 403a-1, a fixed section of the second cylinder 403a is fixedly sleeved on the bottom plate of the U-shaped frame 203a, third T-shaped columns 403d are symmetrically fixed on the bottom surface of the circular frame 403 on both sides of the second cylinder 403a, and the third T-shaped columns 403d are slidably sleeved on the U-shaped frame 203a, and this arrangement can play a role of limiting and guiding the movement of the second cylinder 403a; When the above arrangement is in use, the circular frame 403 can drive the clamp 401 to move in the vertical direction through the extension and retraction of the second cylinder 403a, so as to achieve cooperation with the workpiece to be processed and eject the entire workpiece to be processed from the clamping mechanism 300, and the arrangement of the second cylinder 403a fixedly sleeved on the U-shaped frame 203a can drive the entire displacement mechanism 400 to rotate when the U-shaped frame 203a rotates.

[0043] Example 3 Reference Figure 4 , Figure 5 , Figure 6 and Fig.11 , which is the third embodiment of the present invention, is based on the previous embodiment, except that, in order to facilitate and better implement the present device, the clamping mechanism 300 can be separated from the workpiece when the displacement mechanism 400 cooperates with the workpiece, so this embodiment is proposed.

[0044] Specifically, a convex block 303a is fixedly provided on the bottom surface of the positioning plate 303, and a convex groove 301b for the clearance fit of the convex block 303a is opened on the top surface of the matching disk 301, and second guide columns 301b-1 are symmetrically slidably sleeved on both sides of the lower end of the convex block 303a, and both ends of the second guide column 301b-1 are fixedly provided on the inner side wall of the convex groove 301b, and a second spring 301b-2 is slidably sleeved on the second guide column 301b-1 on the other side of the convex block 303a provided with the arc clip 302, and the two ends of the second spring 301b-2 are respectively fixedly provided on the convex block 303a and the matching disk 301. When this arrangement is in use, through the second spring 301b-2 It is arranged that when the top plate 305 on one side of the convex block 303a loses the ability to block the convex block 303a, under the reset of the second spring 301b-2, the convex block 303a can drive the positioning plate 303 to move; a top plate 305 is arranged on one side of the convex block 303a between the two second springs 301b-2, and third guide posts 305a are symmetrically fixed on both sides of the bottom surface of the top plate 305, and the lower ends of the two third guide posts 305a slide through the matching disk 301 and extend to the bottom of the matching disk 301 and are fixedly connected by a connecting piece, and a third spring 305b is slidably sleeved on the third guide post 305a located on the inner side of the convex groove 301b, and this arrangement can realize the reset of the top plate 305; The electromagnetic ring 402 is arranged below the rotating track surface of the top plate 305, and a support ring 402a is fixedly arranged on the bottom surface of the electromagnetic ring 402, and a plurality of second T-shaped columns 402a-1 are fixedly arranged on the bottom surface of the support ring 402a in a circumferential array, and the second T-shaped columns 402a-1 are slidably sleeved on the circular ring frame 403, and a fourth spring 402b is slidably sleeved on the second T-shaped column 402a-1 between the circular ring frame 403 and the support ring 402a. The arrangement of the fourth spring 402b can realize the reset of the support ring 402a, so that when the electromagnetic ring 402 is squeezed, it can move downward relative to the circular ring frame 403, and when squeezed, the support ring 402a can automatically reset; When the above arrangement is in use, after the chuck 401 moves upward to the reserved groove of the workpiece to be processed and clamps it, the electromagnetic ring 402 starts to be energized to generate magnetism. Under the action of magnetic adsorption, the top plate 305 moves downward and loses the limit on the convex block 303a. Under the action of the second spring 301b-2 resetting, the convex block 303a drives the positioning plate 303 to move, and the arc clamp 302 loses its clamping of the workpiece to be processed. Then the chuck 401 continues to move upward to lift up the entire workpiece to be processed, thereby separating the workpiece to be processed from the clamping mechanism 300.

[0045] Example 4 Reference Figure 2 , Fig.11 and Fig.12 , which is the fourth embodiment of the present invention, is based on the previous embodiment, except that this embodiment is proposed to avoid the inability to achieve five-axis linkage milling of the workpiece after the chuck 401 lifts the entire workpiece.

[0046] Specifically, a fixing ring 403b is slidably sleeved on the outer side of the lower end of the clamp 401, and the fixing ring 403b is coaxially fixed on the inner wall of the circular ring frame 403. A matching groove 403b-1 is circumferentially provided on the inner wall of the fixing ring 403b, and a matching ring 401b is fixed on the outer wall of the clamp 401 to match the matching groove 403b-1. This arrangement can play a role in limiting and guiding the movement of the clamp 401. A second outer gear ring 401a is fixedly sleeved, and the second outer gear ring 401a is driven by a chain 404a and a third gear plate 404c. A third rotating column 404b is fixedly sleeved on the third gear plate 404c, and the lower end of the third rotating column 404b is rotatably sleeved on the extension rod 403c. At the same time, the upper end of the third rotating column 404b is fixedly connected to the first gear plate 404 for meshing with the first outer gear ring 201a, and the extension rod 403c is fixedly connected to the outer side wall of the circular frame 403; When the above arrangement is in use, after the chuck 401 lifts the entire workpiece to be processed, the first toothed disc 404 will engage with the first outer toothed ring 201a, and the third toothed disc 404c can be rotated through the linkage of the third rotating column 404b. Because the third toothed disc 404c is arranged to transmit power through the chain 404a and the second outer toothed ring 401a, it can eventually be achieved that the chuck 401 drives the workpiece to be processed to rotate in the horizontal direction under the rotation of the first outer toothed ring 201a. This rotation method can replace the original first outer toothed ring 201a to drive the workpiece to be processed to rotate, thus maintaining five-axis linkage.

[0047] Example 5 This embodiment is the fifth embodiment of the present invention, and this embodiment provides a high-precision closed impeller split manufacturing process. Specifically, the operation is performed according to the following steps: S1: Casting the upper cover plate and the impeller plate separately by mold casting; S2: Cutting a docking groove on the upper cover plate for mating with the boss on the impeller plate by a cutting device; S3: The upper cover plate or the impeller plate is coaxially clamped in the clamping mechanism 300, and then the three-axis translation milling head 102, the horizontal rotation component 201 and the vertical rotation component 203 are started to cooperate with each other, and the three-axis translation milling head 102 mills the area above the clamping mechanism 300; S4: By controlling the vertical rotation component 1 202 to work, the clamping mechanism 300 drives the workpiece to be processed to rotate 180° in the vertical direction, and the three-axis translation milling head 102 mills the area below the clamping mechanism 300; S5: the clamping mechanism 300 is reset to the S3 state, and the displacement mechanism 400 is controlled to clamp the workpiece. Meanwhile, the clamping mechanism 300 loses the clamping of the workpiece, and the three-axis translation milling head 102 mills the clamping part of the clamping mechanism 300; S6: After the milling is completed, the boss portion of the impeller plate is fitted into the docking groove, and then the upper cover plate and the impeller are welded by laser filler welding; S7: After the welding is completed, the weldment is clamped again by the clamping mechanism 300, and the three-axis translation milling head 102 mills the welding position; S8: After milling is completed, a dynamic balancing test is performed on the entire closed impeller to obtain a high-precision closed impeller.

[0048] In addition, it should be noted that the components not described in detail in this article are prior art.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of a plurality of parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0051] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-precision closed impeller split manufacturing equipment, characterized in that: include, A milling machine mechanism (100) comprises a machine body (101) and a three-axis translation milling head (102) fixedly mounted on a rear side wall of an operating chamber of the machine body (101); A three-axis rotation mechanism (200) disposed in an operating compartment below a three-axis translation milling head (102), comprising a horizontal rotation component (201), a vertical rotation component 1 (202) and a vertical rotation component 2 (203), wherein the horizontal rotation component (201) comprises a first outer toothed ring (201a), a gear column (201b) meshing with the first outer toothed ring (201a) and a first U-shaped plate (201c) symmetrically disposed on both sides of the first outer toothed ring (201a), a limit ring (201a-1) being fixedly disposed on the upper and lower end surfaces of the first outer toothed ring (201a), and the first U-shaped plate (201c) being disposed on the upper and lower end surfaces of the first outer toothed ring (201a). The open end of the first U-shaped plate (201c) is sleeved on the outside of the first outer gear ring (201a), and the upper and lower inner walls of the first U-shaped plate (201c) are both provided with arc grooves (201c-1) for clearance fit of the limit ring (201a-1); the vertical rotation component 1 (202) comprises a toothed rod (202a), a first rotating column (202b), a locking plate (202c) and an electromagnetic block (202d); the vertical rotation component 2 (203) comprises a U-shaped frame (203a) and an L-shaped frame (203b); the first U-shaped plate (201c) is fixedly provided with a first A rotating column (202b) is provided, and the first rotating column (202b) is rotatably sleeved on the L-shaped frame (203b) via a rolling bearing, and the transverse plates of the two L-shaped frames (203b) are symmetrically fixedly arranged at the upper end of the inner wall of the U-shaped frame (203a), and a second toothed disc (202b-1) is fixedly sleeved on one of the first rotating columns (202b), and the second toothed disc (202b-1) is meshed with a toothed bar (202a) on one side, and a first cylinder (202a-1) is fixedly arranged at the lower end of the toothed bar (202a), and a fixed section of the first cylinder (202a-1) is fixedly arranged. A first rotating column (202b) fixedly connected to an L-shaped frame (203b) and provided with a second toothed disc (202b-1) has a clamping block (202b-2) fixedly disposed on the side wall of the free end thereof in a symmetrical manner, a locking plate (202c) disposed between the L-shaped frame (203b) and the U-shaped frame (203a), and a clamping groove (202c-3) for clearance fit of the clamping block (202b-2) is provided on the locking plate (202c), and an electromagnetic block (202d) for magnetically adsorbing the locking plate (202c) is fixedly disposed on one side surface of a vertical plate of the L-shaped frame (203b); and, The clamping mechanism (300) fixedly arranged on the inner side of the first outer gear ring (201a) comprises a hollow matching disk (301) and a plurality of arc clamping pieces (302) arranged in a circumferential array in a hollow groove of the matching disk (301).

2. A high-precision closed impeller split manufacturing equipment as claimed in claim 1, characterized in that: The gear column (201b) is arranged on the inner side of one of the first U-shaped plates (201c); an output shaft (201b-1) is fixedly sleeved in the gear column (201b); both ends of the output shaft (201b-1) are rotatably connected to the side plates of the first U-shaped plate (201c) via rolling bearings; one end of the output shaft (201b-1) extends to the outer side of the first U-shaped plate (201c) and is embedded in the output end of the first motor (201b-2); and the first motor (201b-2) is fixedly arranged on the outer side wall of the first U-shaped plate (201c).

3. A high-precision closed impeller split manufacturing equipment as claimed in claim 2, characterized in that: The lower end of the locking plate (202c) is symmetrically and slidably sleeved with first guide columns (202c-1) on both sides, and the two ends of the first guide columns (202c-1) are respectively fixed on the U-shaped frame (203a) and the L-shaped frame (203b); a first spring (202c-2) is slidably sleeved on the first guide column (202c-1) on the other side of the locking plate (202c) on which the electromagnetic block (202d) is provided, and the two ends of the first spring (202c-2) are respectively fixed on the U-shaped frame (203a) and the L-shaped frame (203b); A limiting strip (202a-2) is fixedly provided on one side surface of the toothed rod (202a) in the vertical direction, a limiting plate (203b-1) is fixedly provided on one side surface of the L-shaped frame (203b) in the vertical direction, and a limiting groove (203b-2) for clearance fit of the limiting strip (202a-2) is provided on the limiting plate (203b-1).

4. The high-precision closed impeller split manufacturing equipment according to claim 1, characterized in that: Second rotating columns (203a-1) are symmetrically fixedly provided on the outer side walls at both ends of the U-shaped frame (203a), and the second rotating column (203a-1) is rotatably connected to the inner wall of the operating chamber of the machine body (101) via a rolling bearing, and the second rotating column (203a-1) is coaxially arranged with the first rotating column (202b).

5. A high-precision closed impeller split manufacturing equipment as claimed in claim 1, 3 or 4, characterized in that: An inner ring (201a-2) is fixedly provided on the inner wall of the first outer gear ring (201a), and matching bolts (201a-3) are fixedly provided on the top surface of the inner ring (201a-2) along a circumferential array, and through holes (301a) are fixedly provided on the matching disk (301) along a circumferential array, and the through holes (301a) are matched and fixed by matching bolts (201a-3); A first T-shaped column (302a) is symmetrically fixed on one side of the arc clamp (302), and two first T-shaped columns (302a) are slidably sleeved on the same positioning plate (303). A locking bolt (304) is spirally sleeved on the positioning plate (303), and one end of the locking bolt (304) abuts against a side of the arc clamp (302).

6. A high-precision closed impeller split manufacturing equipment as claimed in claim 5, characterized in that: It also includes a displacement mechanism (400) disposed at the lower end of the inner side of the U-shaped frame (203a), the displacement mechanism (400) comprising a clamping cylinder (401), an electromagnetic ring (402), a circular ring frame (403), a first toothed disc (404), an arc expansion plate (405) and a frustum (406); The clamping tube (401) is coaxially arranged with the first outer gear ring (201a); a plurality of arc expansion plates (405) with L-shaped vertical cross-sections are arranged in a circumferential array on the outer side of the upper end of the clamping tube (401); a side surface of the vertical plate of the arc expansion plate (405) is fixedly connected to an arc transmission plate (405a) via a linkage column (405a-1); the linkage column (405a-1) is slidably sleeved on the side wall of the clamping tube (401); and a fifth spring (405a-2) is slidably sleeved on the linkage column (405a-1) located on the inner side of the clamping tube (401); A plurality of circular arc transmission plates (405a) are concentrically arranged to form a cylindrical sleeve, and a truncated cone body (406) is coaxially arranged below the cylindrical sleeve, a cylinder (406a) fixed on the top surface of the truncated cone body (406) is slidably sleeved in the cylindrical sleeve, a threaded shaft (406b) is spirally sleeved in the middle of the bottom surface of the truncated cone body (406), the lower end of the threaded shaft (406b) slides through the bottom plate of the clamping barrel (401) and is embedded in the output end of the second motor (406b-1), and the second motor (406b-1) is fixed on the bottom surface of the clamping barrel (401); A circular frame (403) is provided on the outer side of the lower end of the clamp (401), a second U-shaped plate (403a-1) is fixedly provided on the bottom surface of the circular frame (403) outside the second motor (406b-1), and a second cylinder (403a) is fixedly provided in the middle of the bottom surface of the second U-shaped plate (403a-1), and a fixed section of the second cylinder (403a) is fixedly sleeved on the bottom plate of the U-shaped frame (203a).

7. A high-precision closed impeller split manufacturing equipment as claimed in claim 6, characterized in that: A convex block (303a) is fixedly provided on the bottom surface of the positioning plate (303), and a convex groove (301b) for clearance fit of the convex block (303a) is provided on the top surface of the matching disk (301), and second guide pillars (301b-1) are symmetrically slidably sleeved on both sides of the lower end of the convex block (303a), and both ends of the second guide pillar (301b-1) are fixedly provided on the inner side wall of the convex groove (301b), and a second spring (301b-2) is slidably sleeved on the second guide pillar (301b-1) on the other side of the convex block (303a) provided with the arc clip (302), and both ends of the second spring (301b-2) are respectively fixedly provided on the convex block (303a) and the matching disk (301); A top plate (305) is provided on one side of the convex block (303a) between the two second springs (301b-2), and third guide pillars (305a) are symmetrically fixedly provided on both sides of the bottom surface of the top plate (305), and the lower ends of the two third guide pillars (305a) slide through the matching disk (301) and extend to the bottom of the matching disk (301) and are fixedly connected by a connecting sheet, and a third spring (305b) is slidably sleeved on the third guide pillar (305a) located on the inner side of the convex groove (301b); The electromagnetic ring (402) is arranged below the rotation track surface of the top plate (305); a support ring (402a) is fixedly provided on the bottom surface of the electromagnetic ring (402); and a plurality of second T-shaped columns (402a-1) are fixedly provided on the bottom surface of the support ring (402a) in a circumferential array; the second T-shaped columns (402a-1) are slidably sleeved on the circular ring frame (403); and a fourth spring (402b) is slidably sleeved on the second T-shaped column (402a-1) between the circular ring frame (403) and the support ring (402a).

8. A high-precision closed impeller split manufacturing equipment as claimed in claim 6 or 7, characterized in that: A fixing ring (403b) is slidably sleeved on the outer side of the lower end of the clamping cylinder (401), and the fixing ring (403b) is coaxially fixed on the inner wall of the circular ring frame (403). A second outer toothed ring (401a) is fixedly sleeved on the outer side wall of the clamping cylinder (401) above the fixing ring (403b). The second outer toothed ring (401a) is driven by a chain (404a) and a third toothed disc (404c). A third rotating column (404b) is fixedly sleeved on the third toothed disc (404c). The lower end of the third rotating column (404b) is rotatably sleeved on the extension rod (403c). At the same time, the upper end of the third rotating column (404b) is fixedly connected to a first toothed disc (404) for meshing with the first outer toothed ring (201a). The extension rod (403c) is fixedly connected to the outer side wall of the circular ring frame (403).

9. A high-precision closed impeller split manufacturing equipment as claimed in claim 8, characterized in that: Positioning columns (401c) are symmetrically fixed on the inner bottom surface of the clamping cylinder (401) on both sides of the threaded shaft (406b), and the upper ends of the positioning columns (401c) are slidably sleeved on the truncated cone body (406); Third T-shaped columns (403d) are symmetrically fixed on the bottom surfaces of the circular frames (403) on both sides of the second cylinder (403a), and the third T-shaped columns (403d) are slidably sleeved on the U-shaped frame (203a); A matching groove (403b-1) is provided on the inner wall of the fixing ring (403b) along the circumferential direction, and a matching ring (401b) that is gap-matched with the matching groove (403b-1) is fixedly provided on the outer wall of the clamping sleeve (401).

10. A high-precision closed impeller split manufacturing process, characterized in that: The high-precision closed impeller split manufacturing equipment according to any one of claims 6 to 9 is operated according to the following steps; S1: Casting the upper cover plate and the impeller plate separately by mold casting; S2: Cutting a docking groove on the upper cover plate for mating with the boss on the impeller plate by a cutting device; S3: The upper cover plate or the impeller plate is coaxially clamped in the clamping mechanism (300), and then the three-axis translation milling head (102), the horizontal rotation component (201) and the second vertical rotation component (203) are started to work in coordination, and the three-axis translation milling head (102) mills the area above the clamping mechanism (300); S4: controlling the vertical rotation component 1 (202) to work, so that the clamping mechanism (300) drives the workpiece to be processed to rotate 180 degrees in the vertical direction, and the three-axis translation milling head (102) mills the area below the clamping mechanism (300); S5: the clamping mechanism (300) is reset to the S3 state, and the displacement mechanism (400) is controlled to clamp the workpiece to be processed. At the same time, the clamping mechanism (300) loses its clamping of the workpiece to be processed, and the three-axis translation milling head (102) mills the clamping part of the clamping mechanism (300); S6: After the milling is completed, the boss portion of the impeller plate is fitted into the docking groove, and then the upper cover plate and the impeller are welded by laser filler welding; S7: After the welding is completed, the weldment is clamped again by the clamping mechanism (300), and the three-axis translation milling head (102) mills the welding position; S8: After milling is completed, a dynamic balancing test is performed on the entire closed impeller to obtain a high-precision closed impeller.

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