Turbine shell machining device and process

Abstract

The invention relates to the technical field of turbine shell machining equipment, in particular to a turbine shell machining device and process. A first clamping station, a second clamping station and a third clamping station are sequentially arranged on the base from left to right; the first clamping station comprises a first lever air cylinder, a first limiting base, a first positioning base and a first positioning circular truncated cone which are fixed to the base. The second clamping station comprises a first positioning assembly fixed to the base, a second lever air cylinder and a vertical base. The third clamping station comprises a third lever air cylinder fixed to the base, a second positioning base and a second positioning assembly. The first positioning seat, the second positioning seat and the second positioning assembly are each provided with an ejector core assembly. By arranging the three clamping stations, synchronous clamping and parallel machining of the three turbine shells are achieved, machining of one procedure can be completed at the same time when station rotation is completed every time, and compared with traditional single-station machining, the batch production period is effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of turbine housing processing equipment technology, specifically to a turbine housing processing apparatus and process. Background Technology

[0002] The turbine housing is one of the key components of a turbocharger. It is directly connected to the engine exhaust pipe and operates under high temperature, high pressure, and high speed conditions for extended periods. The harsh working environment places high demands on the structural dimensions and machining technology of the parts. The turbine housing typically includes an intake end, an exhaust end, and an internal cavity. Its complex shape and machining accuracy directly affect the turbocharger's performance and service life.

[0003] The machining of turbine housings typically involves drilling, milling, and other processes on multiple surfaces. Currently, turbine housing machining often employs a single-process, single-station production method.

[0004] In traditional single-station machining, only one turbine housing can be processed at a time. Only after all the processes for one turbine housing are completed can the next workpiece be clamped and processed. The clamping and waiting time accounts for a high proportion, making it impossible to achieve parallel processing of multiple workpieces and difficult to meet the needs of mass production. Workpieces need to be repeatedly clamped and unclamped between multiple machine tools. The cumulative positioning errors caused by multiple clamping make it difficult to guarantee the form and position tolerances. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention proposes a turbine housing processing device and process to solve the technical problems of poor accuracy and low efficiency caused by dispersed processes and multiple clamping in the prior art.

[0006] To address the aforementioned technical problems, the present invention provides a turbine housing processing device, comprising a base; the base is provided with a first clamping station, a second clamping station, and a third clamping station sequentially from left to right; the first clamping station includes a first lever cylinder, a first limiting seat, a first positioning seat, and a first positioning frustum fixed to the base, with two sets of the first lever cylinders distributed on both sides of the first positioning frustum, and the first positioning seat located on one side of the first positioning frustum, the positioning surface of the first positioning seat being opposite to the limiting surface of the first limiting seat; the second clamping station includes a first positioning assembly, a second lever cylinder, and a stand fixed to the base. The support has a second positioning frustum opposite to the first positioning component on one side. The second lever cylinder is located on one side of the first positioning component. A limiting boss is provided on the base, and the limiting boss is located below the pressure end of the second lever cylinder. The third clamping station includes a third lever cylinder, a second positioning seat, and a second positioning component fixed on the base. Two sets of the third lever cylinders are distributed on both sides of the second positioning component. The second positioning seat is located on one side of the second positioning component. A second limiting seat is provided on one side of the base, facing the second positioning seat. A core assembly is installed on the first positioning seat, the second positioning seat, and the second positioning component.

[0007] Preferably, the first positioning component includes a base and a central shaft; the base is fixed to a pedestal, and the base has a first cavity and a second cavity that extend vertically through each other; a top seat is fixed to the top of the base, and a cylindrical cavity is formed at one end of the top seat facing the upright; a third cavity and a fourth cavity are formed at the bottom of the base that communicate with the cylindrical cavity; the fourth cavity communicates with the first cavity, and the third cavity communicates with the second cavity; a plug is provided at the opening of the cylindrical cavity; a third positioning frustum corresponding to the second positioning frustum is provided at one end of the central shaft; the other end of the central shaft extends into the cylindrical cavity through the plug; a piston adapted to the inner diameter of the cylindrical cavity is provided on the shaft of the central shaft; the piston is located between the third cavity and the fourth cavity.

[0008] Preferably, the top of the base is provided with a first inclined surface that is inclined toward the upright, the axis of the central shaft is parallel to the first inclined surface, and the top seat is fixedly installed on the first inclined surface.

[0009] Preferably, the angle α between the first inclined plane and the horizontal plane is 5°.

[0010] Preferably, the bottom of the top seat is provided with a positioning block, and the first inclined surface is provided with a positioning groove that matches the positioning block.

[0011] Preferably, the second positioning component includes a mounting base, which is fixed to the base. The top of the mounting base is provided with a second inclined surface, and a fourth positioning frustum is fixed on the second inclined surface. The top core component on the second positioning component is installed on the second inclined surface and is located diagonally below the fourth positioning frustum.

[0012] Preferably, the angle β between the second inclined plane and the horizontal plane is 30°.

[0013] Preferably, the top core assembly includes a bushing; one end of the bushing is fixed with a cap, the cap is provided with a central rod extending into the bushing, the core seat is slidably fitted inside the bushing and covers the central rod, the cap is provided with an oil hole communicating with the inner cavity of the core seat; the bushing near the cap is provided with an annular cavity with an outwardly expanding inner diameter, the core seat near the cap is provided with a tail seat that slides with the annular cavity, the core seat is fitted with a spring, the spring is located inside the annular cavity and abuts against the end wall of the tail seat and the annular cavity; the first positioning seat, the second positioning seat and the second inclined surface are all provided with a chamber for installing the bushing, and the bottom of the first positioning seat, the second positioning seat and the mounting seat are all provided with a fifth cavity communicating with the corresponding cavity.

[0014] The present invention also provides a turbine housing machining process, comprising the following steps: S1. The three turbine housings to be processed are respectively installed on the first clamping station, the second clamping station and the third clamping station, and respectively pressed and fixed by the corresponding first lever cylinder, the second lever cylinder and the third lever cylinder, wherein the top core assembly on each clamping station provides positioning support for the corresponding turbine housing. S2. Simultaneously perform the first process corresponding to the current clamping station on the three turbine housings located at the first clamping station, the second clamping station and the third clamping station. S3. After completing the first process, loosen each lever cylinder, rotate the three turbine housings in turn between the three clamping stations, and then tighten and fix them again. S4. Simultaneously process the second step corresponding to this station on the three turbine housings after rotation. S5. Repeat steps S3 to S4 until all three turbine housings have completed all three processes corresponding to the first clamping station, the second clamping station, and the third clamping station in sequence. S6. Release each lever cylinder to remove the three turbine housings that have completed all processes from their respective workstations, thus completing all machining of the three turbine housings.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are: By setting up three clamping stations, the synchronous clamping and parallel processing of three turbine housings can be achieved. Each station change completes one machining operation for all three turbine housings simultaneously, effectively shortening the batch production cycle compared to traditional single-station processing. The three clamping stations correspond to the three machining operations of the turbine housing. The workpieces to be processed can complete all operations by changing stations, eliminating the need for repeated transfers and re-clamping between different equipment or stations. This reduces the number of clamping operations, avoids positioning errors caused by multiple clamping operations, reduces labor intensity, and improves processing continuity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the turbine housing machining device; Figure 2 This is a schematic diagram of the structure of the first positioning component; Figure 3 This is a schematic diagram of the top mount installation; Figure 4 This is a schematic diagram of the structure of the second positioning component; Figure 5 This is a schematic diagram of the top core assembly. Figure 6 This is a diagram showing the operational status of the turbine housing machining equipment.

[0018] Reference numerals: 1-Base; 2-First clamping station, 201-First lever cylinder, 202-First limiting seat, 203-First positioning seat, 204-First positioning frustum; 3-Second clamping station, 301-Second lever cylinder, 302-Limiting boss, 303-Standing seat, 304-Second positioning frustum; 4-Third clamping station, 401-Third lever cylinder, 402-Second positioning seat, 403-Second limiting seat; 5-Top core assembly, 51-Sleeve, 511-Annular cavity, 52-Core seat, 52 1-Tailstock, 53-Center rod, 54-Cap, 541-Oil hole; 6-First positioning assembly, 61-Base, 611-First cavity, 612-Second cavity, 613-Positioning groove, 62-Center shaft, 621-Piston, 63-Top seat, 631-Third cavity, 632-Cylindrical cavity, 633-Fourth cavity, 634-Positioning block, 64-Third positioning frustum, 65-Plug; 7-Second positioning assembly, 71-Mounting seat, 72-Fourth positioning frustum, 73-Fifth cavity, 74-Cavity. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Those skilled in the art will recognize that the invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of it.

[0020] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the invention. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] like Figure 1 As shown, the turbine housing processing device in this embodiment includes a base 1, on which a first clamping station 2, a second clamping station 3, and a third clamping station 4 are arranged sequentially from left to right. The three clamping stations are evenly arranged along the same straight line, and the spacing is reasonably set according to the size of the turbine housing to ensure that the three turbine housings do not interfere with each other after clamping.

[0022] The first clamping station 2 includes a first lever cylinder 201, a first limiting seat 202, a first positioning seat 203 and a first positioning frustum 204 fixed on the base 1. Two sets of first lever cylinders 201 are distributed on both sides of the first positioning frustum 204. The first positioning seat 203 is located on one side of the first positioning frustum 204, and the positioning surface of the first positioning seat 203 is opposite to the limiting surface of the first limiting seat 202.

[0023] The turbine housing workpiece to be clamped is placed on the first positioning frustum 204 and positioned by the first positioning seat 203 and the first limiting seat 202. Two first lever cylinders 201 simultaneously press and fix the workpiece from both sides of the top, thereby achieving fixed clamping of the workpiece.

[0024] The second clamping station 3 includes a first positioning component 6, a second lever cylinder 301, and a stand 303 fixed on the base 1. A second positioning frustum 304 opposite to the first positioning component 6 is provided on one side of the stand 303. The second lever cylinder 301 is located on one side of the first positioning component 6. A limiting boss 302 is provided on the base 1. The limiting boss 302 is located below the pressing end of the second lever cylinder 301.

[0025] like Figure 2 As shown, the first positioning component 6 includes a base 61 and a central shaft 62. The base 61 is fixed to the base 1, and the base 61 has a first cavity 611 and a second cavity 612 that extend vertically through each other. A top seat 63 is fixed to the top of the base 61, and a cylindrical cavity 632 is formed at the end of the top seat 63 facing the upright 303. A third cavity 631 and a fourth cavity 633 are formed at the bottom of the base 61 that communicate with the cylindrical cavity 632. The fourth cavity 633 communicates with the first cavity 611, and the third cavity 631 communicates with the second cavity 612.

[0026] The cylindrical cavity 632 has a plug 65 at its opening. One end of the central shaft 62 has a third positioning frustum 64 corresponding to the second positioning frustum 304. The other end of the central shaft 62 passes through the plug 65 and extends into the cylindrical cavity 632. The shaft of the central shaft 62 has a piston 621 that matches the inner diameter of the cylindrical cavity 632. The piston 621 is located between the third cavity 631 and the fourth cavity 633.

[0027] Hydraulic oil can enter the cylindrical cavity 632 through the first cavity 611 and the fourth cavity 633, or the second cavity 612 and the third cavity 631, driving the piston 621 to reciprocate along the cylindrical cavity 632, thereby driving the central shaft 62 to extend and retract, causing the third positioning platform 64 to move, thus achieving the clamping or loosening of the workpiece.

[0028] like Figure 3 As shown, the top of the base 61 is provided with a first inclined surface that slopes towards the stand 303. The axes of the central shaft 62 and the third positioning frustum 64 are parallel to the first inclined surface, and the angle α between the first inclined surface and the horizontal plane is 5°. This ensures that the positioning direction of the central shaft 62 is compatible with the machined surface of the turbine housing, and also avoids interference with the machining tools during the machining process.

[0029] The top seat 63 is fixedly installed on the first inclined surface. The bottom of the top seat 63 is provided with a positioning block 634, and the first inclined surface is provided with a positioning groove 613 that matches the positioning block 634. The positioning block 634 is embedded in the positioning groove 613 to achieve the positioning of the top seat 63 and avoid the positioning deviation of the central shaft 62 caused by the installation offset of the top seat 63.

[0030] like Figure 1 As shown, the third clamping station 4 includes a third lever cylinder 401 fixed on the base 1, a second positioning seat 402, and a second positioning assembly 7. Two sets of third lever cylinders 401 are distributed on both sides of the second positioning assembly 7, the second positioning seat 402 is located on one side of the second positioning assembly 7, and a second limiting seat 403 is provided on one side of the base 1 facing the second positioning seat 402.

[0031] like Figure 4As shown, the second positioning component 7 includes a mounting base 71, which is fixed to the base 1. The top of the mounting base 71 is provided with a second inclined surface, and a fourth positioning frustum 72 is fixed on the second inclined surface. The angle β between the second inclined surface and the horizontal plane is 30°, which is adapted to the shape structure of the turbine housing, facilitates positioning and processing, and avoids interference with processing tools during processing.

[0032] The first positioning seat 203, the second positioning seat 402, and the second positioning assembly 7 are all equipped with a core assembly 5. The core assembly 5 on the second positioning assembly 7 is installed on the second inclined surface and is located diagonally below the fourth positioning frustum 72.

[0033] like Figure 5 As shown, the top core assembly 5 includes a bushing 51. A cover 54 is fixed to one end of the bushing 51. A central rod 53 extending into the bushing 51 is provided on the cover 54. The core seat 52 is slidably fitted inside the bushing 51 and covers the central rod 53. An oil hole 541 communicating with the inner cavity of the core seat 52 is provided on the cover 54. The bushing 51 near the cover 54 has an annular cavity 511 with an outwardly expanding inner diameter. The core seat 52 near the cover 54 has a tailstock 521 that slides with the annular cavity 511. A spring is sleeved on the core seat 52. The spring is located inside the annular cavity 511 and abuts against the end wall of the tailstock 521 and the annular cavity 511.

[0034] The first positioning seat 203, the second positioning seat 402, and the second inclined surface are all provided with a cavity 74 for installing the bushing 51, and the bottom of the first positioning seat 203, the second positioning seat 402, and the mounting seat 71 are all provided with a fifth cavity 73 that communicates with the corresponding cavity 74.

[0035] Hydraulic oil enters chamber 74 through the fifth passage 73 and then enters the inner cavity of core seat 52 through oil hole 541. As hydraulic oil is continuously injected, the oil pressure drives core seat 52 to extend from bushing 51, while simultaneously compressing the spring. When the oil pressure is released, the spring returns to its original position, pushing core seat 52 to retract and reset. The center rod 53 sets a lower limit on the reset stroke of core seat 52.

[0036] like Figure 1 and Figure 6 As shown, the turbine housing machining process using the aforementioned turbine housing machining apparatus includes the following steps: S1, Clamping and positioning The three turbine housings to be processed are respectively installed on the first clamping station 2, the second clamping station 3, and the third clamping station 4.

[0037] For the turbine housing at the first clamping station 2, its positioning surface is aligned with the first positioning frustum 204, and its side surface is aligned with the positioning surface of the first limiting seat 202. The two sets of first lever cylinders 201 and the top core assembly 5 at this station are activated. The pressure ends of the two sets of first lever cylinders 201 press against the top two sides of the turbine housing, and the core seat 52 of the top core assembly 5 is pushed out, thus achieving the clamping and fixing of the turbine housing.

[0038] For the turbine housing at the second clamping station 3, one of its positioning surfaces is aligned with the second positioning frustum 304. Hydraulic oil is introduced into the second cavity 612 through the hydraulic line. The hydraulic oil enters one side of the cylindrical cavity 632 through the third cavity 631, pushing the piston 621 to move and causing the central shaft 62 to extend, so that the third positioning frustum 64 is aligned with the other positioning surface of the turbine housing. The second lever cylinder 301 is activated, and its pressure end presses against the turbine housing. The limiting boss 302 restricts the pressing stroke, completing the clamping and fixing.

[0039] For the turbine housing at the third clamping station 4, its positioning surface is attached to the fourth positioning frustum 72, and its side is attached to the positioning surface of the second positioning seat 402. The second limiting seat 403 restricts its lateral displacement. The core seat 52 of the top core assembly 5 at this station presses against the turbine housing. The two sets of third lever cylinders 401 are activated to press the two sides of the turbine housing, thus completing the clamping and fixing.

[0040] S2, First Processing Step Set the machining parameters for each station, start the machining equipment (such as a CNC milling machine), and machine the three turbine housings. For example, the first clamping station 2 performs end face milling on the turbine housing, the second clamping station 3 performs internal hole machining on the turbine housing, and the third clamping station 4 performs flange face machining on the turbine housing. The three stations perform machining simultaneously.

[0041] S3, Workstation Rotation After the first processing step is completed, the processing equipment is shut down, the hydraulic oil supply is stopped, and the lever cylinders are released to relieve the pressure on the turbine housing. Then, manually or via a robotic arm, the three turbine housings are sequentially rotated between the workstations: the turbine housing at the first clamping station 2 is moved to the second clamping station 3, the turbine housing at the second clamping station 3 is moved to the third clamping station 4, and the turbine housing at the third clamping station 4 is moved back to the first clamping station 2. After the rotation is completed, the lever cylinders and hydraulic system are restarted according to step S1 to press and fix the turbine housings.

[0042] S4, Second processing step Start the processing equipment. The first clamping station 2 (where the turbine housing originally placed at the third clamping station is placed) performs flange surface processing. The second clamping station 3 (where the turbine housing originally placed at the first clamping station is placed) performs end face milling processing. The third clamping station 4 (where the turbine housing originally placed at the second clamping station is placed) performs internal hole processing. All three stations process simultaneously.

[0043] S5, Repeated Processing and Rotation Repeat steps S3 to S4 until all three turbine housings have completed the three processes of end face milling, inner hole machining, and flange face machining in sequence.

[0044] S6. Unloading completed. After all the processing steps are completed, the lever cylinders are released, the hydraulic system is stopped, and the three finished turbine housings are unloaded from their respective workstations and sent to the inspection station for dimensional and positional accuracy testing. After passing the inspection, subsequent processing such as grinding and rust removal is carried out to obtain the finished turbine housing.

[0045] The embodiments described above are not exhaustive and do not limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A turbine housing processing apparatus, comprising a base (1); characterized in that: The base (1) is provided with a first clamping station (2), a second clamping station (3), and a third clamping station (4) from left to right. The first clamping station (2) includes a first lever cylinder (201), a first limiting seat (202), a first positioning seat (203), and a first positioning frustum (204) fixed on the base (1). Two sets of the first lever cylinders (201) are distributed on both sides of the first positioning frustum (204). The first positioning seat (203) is located on one side of the first positioning frustum (204), and the positioning surface of the first positioning seat (203) is opposite to the limiting surface of the first limiting seat (202). The second clamping station (3) includes a first positioning component (6), a second lever cylinder (301), and a stand (303) fixed on the base (1). The stand (303) has a support on one side that is aligned with the first positioning component (6). The second positioning frustum (304) is located on one side of the first positioning component (6), and the base (1) is provided with a limiting boss (302), which is located below the pressing end of the second lever cylinder (301). The third clamping station (4) includes a third lever cylinder (401), a second positioning seat (402), and a second positioning component (7) fixed on the base (1). The two sets of third lever cylinders (401) are distributed on both sides of the second positioning component (7). The second positioning seat (402) is located on one side of the second positioning component (7). The base (1) is provided with a second limiting seat (403) facing the second positioning seat (402). The first positioning seat (203), the second positioning seat (402), and the second positioning component (7) are all equipped with a core assembly (5).

2. The turbine housing processing apparatus according to claim 1, characterized in that: The first positioning component (6) includes a base (61) and a central shaft (62); the base (61) is fixed to the base (1), and the base (61) has a first cavity (611) and a second cavity (612) that are vertically connected; a top seat (63) is fixed to the top of the base (61), and a cylindrical cavity (632) is opened at one end of the top seat (63) facing the upright (303); a third cavity (631) and a fourth cavity (633) are opened at the bottom of the base (61) that communicate with the cylindrical cavity (632), and the fourth cavity (633) is connected to the first cavity (611). 611) Correspondingly connected, the third cavity (631) and the second cavity (612) are correspondingly connected; the opening of the cylindrical cavity (632) is provided with a plug (65), one end of the central shaft (62) is provided with a third positioning frustum (64) corresponding to the second positioning frustum (304), the other end of the central shaft (62) passes through the plug (65) and extends into the cylindrical cavity (632), the shaft of the central shaft (62) is provided with a piston (621) adapted to the inner diameter of the cylindrical cavity (632), and the piston (621) is located between the third cavity (631) and the fourth cavity (633).

3. The turbine housing processing apparatus according to claim 2, characterized in that: The top of the base (61) is provided with a first inclined surface that is inclined toward the stand (303), the axis of the central shaft (62) is parallel to the first inclined surface, and the top seat (63) is fixedly installed on the first inclined surface.

4. The turbine housing processing apparatus according to claim 3, characterized in that: The angle α between the first inclined plane and the horizontal plane is 5°.

5. The turbine housing processing apparatus according to claim 3, characterized in that: The top seat (63) is provided with a positioning block (634) at the bottom, and the first inclined surface is provided with a positioning groove (613) that is adapted to the positioning block (634).

6. The turbine housing processing apparatus according to claim 1, characterized in that: The second positioning component (7) includes a mounting base (71) which is fixed to the base (1). The top of the mounting base (71) is provided with a second inclined surface. A fourth positioning frustum (72) is fixed on the second inclined surface. The top core component (5) on the second positioning component (7) is installed on the second inclined surface and is located diagonally below the fourth positioning frustum (72).

7. The turbine housing processing apparatus according to claim 6, characterized in that: The angle β between the second inclined plane and the horizontal plane is 30°.

8. The turbine housing processing apparatus according to claim 7, characterized in that: The top core assembly (5) includes a bushing (51) and a core seat (52); a cover (54) is fixed to one end of the bushing (51), and a central rod (53) extending into the bushing (51) is provided on the cover (54). The core seat (52) is slidably fitted inside the bushing (51) and covers the central rod (53). An oil hole (541) communicating with the inner cavity of the core seat (52) is provided on the cover (54); an annular cavity (511) with an outwardly expanding inner diameter is provided at one end of the bushing (51) near the cover (54), and the core seat (52) is located near the cover (54). One end of the core seat (521) is provided with a tail seat (521) that slides with the annular cavity (511). The core seat (52) is covered with a spring. The spring is located inside the annular cavity (511) and abuts against the end wall of the tail seat (521) and the annular cavity (511). The first positioning seat (203), the second positioning seat (402) and the second inclined surface are all provided with a cavity (74) for installing the bushing (51). The bottom of the first positioning seat (203), the second positioning seat (402) and the mounting seat (71) are all provided with a fifth cavity (73) that communicates with the corresponding cavity (74).

9. A turbine housing machining process, utilizing the turbine housing machining apparatus according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1. The three turbine housings to be processed are respectively installed on the first clamping station (2), the second clamping station (3) and the third clamping station (4), and respectively pressed and fixed by the corresponding first lever cylinder (201), the second lever cylinder (301) and the third lever cylinder (401), wherein the top core assembly (5) on each clamping station provides positioning support for the corresponding turbine housing; S2. Simultaneously perform the first process processing corresponding to the current clamping station (2), the second clamping station (3) and the third clamping station (4) on the three turbine housings currently located at the first clamping station (2), the second clamping station (3) and the third clamping station (4); S3. After completing the first process, loosen each lever cylinder, rotate the three turbine housings in turn between the three clamping stations, and then tighten and fix them again. S4. Simultaneously process the second step corresponding to this station on the three turbine housings after rotation. S5. Repeat steps S3 to S4 until all three turbine housings have completed all three processes corresponding to the first clamping station (2), the second clamping station (3), and the third clamping station (4) in sequence. S6. Release each lever cylinder to remove the three turbine housings that have completed all processes from their respective workstations, thus completing all machining of the three turbine housings.

Images