A multi-station processing device and processing method for copper alloy precision castings

Abstract

The present application relates to the technical field of casting processing device, specifically relates to a copper alloy precision casting multi-station processing device and processing mode, the processing device includes parts and multi-station fixing parts, the multi-station fixing parts include the bottom plate, the fixed plate being arranged on the bottom plate, the angular fixing assembly being arranged on the side of the fixed plate and the axial clamping assembly being arranged on the bottom plate are fixed to the multi-station fixing parts;The angular position of the part is fixed through the angular cylinder control clamping plate and convex body sliding clamping, and the axial position of the part is fixed by using the clamping cylinder, so that one-time multi-piece processing can be realized, the difference of traditional manual clamping by different operators is solved, the yield is improved, the production cycle is reduced, and the production cost is reduced.

Description

A multi-station machining device and machining method for precision castings of copper alloys Technical Field

[0001] This invention relates to the field of casting processing equipment technology, specifically to a multi-station processing device and processing method for precision copper alloy castings. Background Technology

[0002] Copper alloy precision castings play a crucial role in many demanding engineering projects, but their machining process involves complex shapes and precise dimensions, requiring multi-hole drilling, tapping, and milling.

[0003] This multi-station machining equipment utilizes CNC machine tools, cutting tools, fixtures, positioning devices, etc., combined with an advanced automated control system, to provide a variety of machining functions. The equipment has a compact structure with multiple stations, each performing different machining operations. Through the orderly flow of processes, high-efficiency machining is achieved.

[0004] Through the multi-station operation and automated control system of the device, high-precision machining results with good surface quality were obtained, meeting the requirements for mass production of copper alloy precision castings. The application of the background technology of the multi-station machining device and its machining method for copper alloy precision castings has improved the machining efficiency and quality of copper alloy precision castings. This technology is of great significance for meeting engineering requirements and improving production efficiency.

[0005] However, the current common processing method for similar parts is sequential processing, which involves drilling and tapping before surface machining. External factors such as different operators' clamping techniques or varying tooling conditions lead to poor product consistency and even scrapping due to exceeding tolerances. Existing machining fixtures require multiple sets arranged according to the process flow, resulting in high investment in equipment, fixtures, and personnel. Furthermore, the need for multiple clamping operations causes dimensional instability and low production efficiency. To ensure high production efficiency while simultaneously machining multiple precision copper alloy castings, a highly efficient and precise multi-station machining device is urgently needed to guarantee both quality and production efficiency. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a multi-station machining device and machining method for precision casting of copper alloys.

[0007] A multi-station machining device for precision copper alloy castings includes a base plate, a fixing plate disposed on the base plate, an angular fixing assembly disposed on one side of the fixing plate, and a multi-station fixing component consisting of an axial clamping assembly disposed on the base plate.

[0008] The base plate has a plurality of mounting holes spaced apart for fixing parts; a support plate is also provided at the bottom of the base plate.

[0009] The angular fixing assembly includes an angular cylinder disposed on one side of the fixing plate, an angular connecting rod disposed on the output end of the angular cylinder, and a guide plate disposed on the base plate and slidably engaged with the angular connecting rod; a retaining plate is provided at the bottom of the angular connecting rod.

[0010] The axial clamping assembly includes a positioning pin corresponding to the mounting hole, a clamping cylinder disposed at the bottom of the base plate, a flange thread disposed at the output end of the clamping cylinder and passing through the positioning pin, and a waist groove pressure plate disposed at the bottom of the flange thread and movably engaged with the flange thread.

[0011] Description: By fixing parts with multi-station fasteners, multiple parts can be clamped at once, enabling multi-hole drilling, tapping, and milling of multiple parts in one operation. This improves production efficiency while ensuring product quality and accuracy. Standardizing the clamping method ensures consistent clamping status of parts, reduces external variables, and lowers the scrap rate of processed parts.

[0012] Furthermore, it includes an auxiliary reinforcement unit disposed on the base plate, and a transformer assembly driven by the auxiliary reinforcement unit;

[0013] The auxiliary reinforcement unit includes a braking assembly disposed on the base plate, an auxiliary clamping member disposed on the braking assembly, and a rack disposed on the angular connecting rod;

[0014] The transformer assembly includes a turntable rotatably mounted on the base plate via a support rod, a transformer module mounted on the turntable, a shaft rotatably mounted on the base plate via a support plate, and a rotating rod mounted on one end of the shaft.

[0015] The braking assembly includes a gear sleeved on a shaft and meshing with a rack, a turbine sleeved on the other end of the shaft, and a worm gear rotatably connected to a support frame provided on the base plate.

[0016] When the rack moves, it can drive the rotating rod to rotate via gear transmission.

[0017] Explanation: The rack and pinion mechanism rotates the rotating rod, which in turn drives the turntable, causing the transformer module to operate and applying negative pressure to the side wall of the part to enhance the fixing effect.

[0018] Furthermore, the auxiliary clamping component includes a guide frame disposed at one end of the worm gear, guide rods disposed at both ends of the guide frame, a guide block disposed at the bottom of the guide rods, and a clamping body that is slidably engaged with the base plate;

[0019] The surface of the clamping body is provided with a guide groove that slides and engages with the guide block.

[0020] Explanation: The auxiliary clamping device further fixes the angular position of the part from two other directions to avoid angular position deviation caused by the deformation of the clamping plate; when controlling the angular position of the part, the angular connecting rod is pressed down while the power is used to drive the gear to rotate through the rack, thereby driving the worm gear to rotate, which in turn drives the worm to rotate, causing the guide frame to move, so that the part can be clamped and fixed from different directions.

[0021] The rotation of the worm gear drives the guide rods at both ends of the guide frame to move. Through the guide blocks that slide and engage with the guide groove, the clamping body moves forward or backward according to the direction of the guide frame's movement. When the angular linkage is pressed down, the worm gear can be rotated by power, and the guide frame moves towards the part. The clamping body simultaneously advances to clamp the part in two directions. When the fixation is released, the angular linkage is pulled back, the worm gear moves away from the part, and the clamping body simultaneously releases the fixation on the part. This convenient and precise control of the part's angular position avoids angular position deviation.

[0022] Furthermore, a fixing suction cup is provided at one end of the clamping body;

[0023] The turntable surface is provided with multiple guide rails in a scattering pattern. The transformer module includes a push plate that is slidably connected to the guide rails, an air cavity provided on one side of the push plate, and a spring provided on the other side of the push plate and connected to the end of the guide rail.

[0024] The bottom of the rotating rod is provided with a push block that can contact the push plate;

[0025] The push plate is a telescopic structure, consisting of an upper telescopic part and a lower fixed part. The fixed part of the push plate is connected to a spring. The telescopic part of the push plate has an inclined surface for the push block to compress the push plate and reset.

[0026] The inner bottom of the guide rail, away from the center of the turntable, is also equipped with a sloping groove that allows the push plate to descend.

[0027] The surface of the air chamber is provided with a first one-way valve; the air chamber is connected to the fixed suction cup through a conduit and a second one-way valve.

[0028] Explanation: The gear drives the rotating rod to rotate, pushing the push plate to squeeze the spring, which stretches the air chamber and evacuates the air from inside the fixed suction cup. After the rotating rod rotates away, the spring squeezes the air in the air chamber out through the first one-way valve. The pressure transformer module makes the inside of the fixed suction cup negative, which enhances the fixing effect on the parts.

[0029] Furthermore, a dust collection box is provided at the connection between the air cavity and the fixed suction cup, and multiple filter plates are arranged at intervals inside the dust collection box.

[0030] Note: When the part is stopped from being clamped, the rack pulls the gear to rotate, and the rotating rod drives the transformer module to make the fixed suction cup suck in air. The dust collection box filters the sucked-in impurities, which can clean the surface of the base plate by suction and avoid dust from interfering with the processing effect.

[0031] Furthermore, the bottom of the clamping body is provided with a protrusion, and the base plate is provided with a groove that slides and engages with the protrusion.

[0032] Note: The sliding displacement direction of the clamping body is restricted by the protrusions and grooves to prevent the clamping body from deviating from the sliding trajectory.

[0033] Furthermore, the guide frame is provided with a threaded hole that is threadedly connected to the worm gear; two support sliders are provided at intervals at the bottom of the guide frame and along the length of the guide frame, and the base plate is provided with a sliding groove that is slidably engaged with the support sliders.

[0034] Explanation: When the worm gear rotates, it drives the guide frame to slide along the slide groove through the screw hole, which can push the guide block to clamp the part.

[0035] This invention also provides a processing method for a multi-station machining device for precision copper alloy castings, comprising the following steps:

[0036] S1. Preprocessing:

[0037] To test the burr removal rate of the parts, the surfaces of the parts, base plate, fixing plate, locating pin, flange bolt and waist groove pressure plate were cleaned separately.

[0038] S2, Positioning component:

[0039] Place the part on the base plate surface, fix the part on the mounting hole with the positioning pin, install the flange screw fixed to the clamping cylinder through the center of the positioning pin, install the waist groove pressure plate on the positioning pin, adjust the angle of the part, align the protrusion with the clamping plate, control the angular cylinder to fix the part angularly, and control the clamping cylinder to fix the part axially.

[0040] S3. Parts machining:

[0041] Check the clamping degree of the angular cylinder and clamping cylinder, start the drilling, tapping and milling process, and after the processing is completed, blow dry the part to obtain the part product.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] This invention uses multi-station fixing components to fix parts. An angular cylinder controls the sliding engagement of a clamping plate and a protrusion to fix the angular position of the part. A locating pin fixes the machining position of the part. A flange bolt, which passes through the center of the locating pin and is fixed to the clamping cylinder, is installed. A grooved pressure plate is installed on the locating pin. The clamping cylinder then fixes the axial position of the part. Adjustment is easy, operation is convenient, and multiple machines can be operated by a single person, reducing labor costs. It allows for simultaneous processing of multiple parts, solving the inconsistencies of traditional manual clamping by different operators, saving time, improving product surface consistency, thereby increasing yield, reducing production cycle time, and lowering production costs. Attached Figure Description

[0044] Figure 1 is a schematic diagram of the overall structure of the multi-station fixing component according to Embodiment 1 of the present invention;

[0045] Figure 2 is a structural schematic diagram of the part in Embodiment 1 of the present invention;

[0046] Figure 3 is a schematic diagram of the positioning pin in Embodiment 1 of the present invention;

[0047] Figure 4 is a schematic diagram of the waist groove pressure plate of Embodiment 1 of the present invention;

[0048] Figure 5 is a schematic diagram of the auxiliary reinforcement unit in Embodiment 2 of the present invention;

[0049] Figure 6 is a schematic diagram of the braking assembly in Embodiment 2 of the present invention;

[0050] Figure 7 is a schematic diagram of the structure of the auxiliary clamping component in Embodiment 2 of the present invention;

[0051] Figure 8 is a schematic diagram of the transformer assembly in Embodiment 2 of the present invention;

[0052] Figure 9 is a longitudinal sectional view of the guide rail under spring tension state in Embodiment 2 of the present invention;

[0053] Among them, 1-part, 11-through hole, 12-protrusion, 2-multi-station fixing component, 21-base plate, 211-mounting hole, 212-support plate, 213-slide groove, 22-fixing plate, 23-angular fixing assembly, 231-angular cylinder, 232-angular connecting rod, 2321-clamping plate, 233-guide plate, 24-axial clamping assembly, 241-positioning pin, 242-clamping cylinder, 243-flange bolt, 244-waist groove pressure plate, 3-auxiliary reinforcement unit, 31-brake assembly, 311-support plate, 3 12-Gear, 313-Turbine, 314-Support frame, 315-Worm, 32-Auxiliary clamping component, 321-Guide frame, 3211-Support slider, 322-Guide rod, 323-Guide block, 324-Clamping body, 3241-Guide groove, 3242-Fixed suction cup, 33-Rack, 4-Transformer assembly, 41-Support rod, 42-Turntable, 421-Guide rail, 4211-Slope groove, 43-Transformer module, 431-Air chamber, 432-Push plate, 433-Spring, 44-Rotating rod, 45-Shaft. Detailed Implementation

[0054] The present invention will now be described in more detail with reference to specific embodiments, so as to better demonstrate the advantages of the present invention.

[0055] Example 1

[0056] As shown in Figures 1 and 2, a multi-station processing device for precision copper alloy castings includes a base plate 21, a fixing plate 22 disposed on the base plate 21, an angular fixing component 23 disposed on one side of the fixing plate 22, and an axial clamping component 24 disposed on the base plate 21, forming a multi-station fixing component 2.

[0057] The precision casting of copper alloy is part 1. Part 1 has a through hole 11 at its center and protrusions 12 spaced out on its sidewalls in a circumferential direction.

[0058] The base plate 21 has a plurality of mounting holes 211 at intervals, which correspond to the through holes 1121 and are used to fix the parts 1; a support plate 212 is also provided at the bottom of the base plate 21.

[0059] The angular fixing assembly 23 includes an angular cylinder 231 disposed on one side of the fixing plate 22, an angular connecting rod 232 disposed on the output end of the angular cylinder 231, and a guide plate 233 disposed on the base plate 21 and slidably engaged with the angular connecting rod 232.

[0060] The bottom of the angular connecting rod 232 is provided with a locking plate 2321, which can be slidably engaged with the protrusion 12.

[0061] As shown in Figures 1, 3, and 4, the axial clamping assembly 24 includes a positioning pin 241 corresponding to the mounting hole 211, a clamping cylinder 242 disposed at the bottom of the base plate 21, a flange thread 243 disposed at the output end of the clamping cylinder 242 and passing through the positioning pin 241, and a waist groove pressure plate 244 disposed at the bottom of the flange thread 243 and movably engaged with the flange thread 243.

[0062] It should be noted that this embodiment also includes a controller and a power supply. The controller, power supply, angular cylinder 231, clamping cylinder 242, flange screw 243, and waist groove pressure plate 244 are all commercially available products and will not be described in detail here.

[0063] Example 2

[0064] This embodiment provides a processing method using the multi-station processing device of Embodiment 1, and the steps are as follows:

[0065] S1. Preprocessing:

[0066] To test the burr removal rate of part 1, clean the surfaces of part 1, base plate 21, fixing plate 22, positioning pin 241, flange bolt 243 and waist groove pressure plate 244 respectively.

[0067] S2, Positioning Part 1:

[0068] Place part 1 on the surface of base plate 21, fix part 1 on mounting hole 211 by positioning pin 241, install flange bolt 243 fixed to clamping cylinder 242 through the center of positioning pin 241, install waist groove pressure plate 244 on positioning pin 241, adjust the angle of part 1, align protrusion 12 with clamping plate 2321, control angular cylinder 231 to fix part 1 angularly, and control clamping cylinder 242 to fix part 1 axially.

[0069] S3, Part 1 machining:

[0070] Check the clamping degree of the angular cylinder 231 and the clamping cylinder 242, start the drilling, tapping and milling processing program, and after the processing is completed, blow dry the part 1 to obtain the part 1 product.

[0071] Example 3

[0072] The difference between this embodiment and embodiment 1 is that, as shown in FIG5, it also includes an auxiliary reinforcement unit 3. The auxiliary reinforcement unit 3 includes a braking assembly 31 disposed on the base plate 21 and an auxiliary clamping member 32 disposed on the braking assembly 31.

[0073] As shown in Figure 6, the auxiliary clamping component 32 includes a guide frame 321 disposed at one end of the worm gear 315, guide rods 322 disposed at both ends of the guide frame 321, a guide block 323 disposed at the bottom of the guide rods 322, and a clamping body 324 slidably engaged with the guide block 323; the surface of the clamping body 324 is provided with a guide groove 3241 slidably engaged with the guide block 323.

[0074] The bottom of the clamping body 324 is provided with a protrusion, and the base plate 21 is provided with a groove that slides and engages with the protrusion.

[0075] As shown in Figure 7, the guide frame 321 is provided with a screw hole that is threaded to the worm gear 315; two support sliders 3211 are provided at the bottom of the guide frame 321 and at intervals along the length of the guide frame 321; and the base plate 21 is provided with a sliding groove 213 that is slidably engaged with the support sliders 3211.

[0076] A fixed suction cup 3242 is also provided at one end of the clamping body 324 near the side wall of part 1;

[0077] As shown in Figures 6 and 8, the transformer assembly 4 includes a turntable 42 rotatably mounted on the base plate 21 via a support rod 41, a transformer module 43 mounted on the turntable 42, a shaft 45 rotatably mounted on the base plate 21 via a support plate 311, and a rotating rod 44 mounted on one end of the shaft 45.

[0078] As shown in Figures 5 and 6, a rack 33 is provided on the angular connecting rod 232, and the braking assembly 31 includes a gear 312 sleeved on the shaft 45 and meshing with the rack 33, a worm gear 313 sleeved on the other end of the shaft 45, and a worm 315 rotatably connected to the support frame 314 provided on the base plate 21.

[0079] When the rack 33 moves, it can drive the rotating rod 44 to rotate through the transmission of the gear 312;

[0080] As shown in Figures 6 and 8, the surface of the turntable 42 is provided with four guide rails 421 in a radiating pattern. The transformer module 43 includes a push plate 432 that is slidably connected to the guide rails 421, an air chamber 431 on one side of the push plate 432, and a spring 433 on the other side of the push plate 432 and connected to the end of the guide rails 421.

[0081] The included angle between any two adjacent guide rails 421 is 90°; when the rotating rod 44 slides within the guide rail 421, it can drive the turntable 42 to rotate 90°, allowing the rotating rod 44 to enter the next guide rail 421 for cyclic transmission.

[0082] As shown in Figure 9, the bottom of the rotating rod 44 is provided with a push block that can contact the push plate 432;

[0083] The push plate 432 is a telescopic structure, consisting of an upper telescopic part and a lower fixed part. The fixed part of the push plate 432 is connected to the spring 433. The telescopic part of the push plate 432 has an inclined surface for the push block to compress the push plate 432 and reset it. The inclined surface is arranged from high to low along the length of the guide rail 421 from the center of the turntable 42 outward. When the push plate 432 is pushed to one end of the guide rail 421 by the push block and is relatively stationary with respect to the inside of the guide rail 421, the slope of the inclined surface can cause the push block to press down on the telescopic part of the push plate 432, so that the top surface of the push plate 432 drops to a height that is difficult to contact with the push block. This allows the continuing push block to slide from above and pass over the push plate 432. Then the telescopic part rebounds and resets the push plate 432.

[0084] The inner bottom of the guide rail 421, away from the center of the turntable 42, is also provided with a sloped groove 4213 that allows the push plate 432 to descend. The side wall of the push plate 432 is slidably engaged with the inside of the sloped groove 4213. When the push block pushes the push plate 432 into the sloped groove 4213, the slope of the sloped groove 4213 allows the push plate 432 to descend to a depth where it is difficult for the push block to contact it. That is, the lowest point of the sloped groove 4213 is approximately equal to the length of the push plate 432, so that the push block slides from the top and passes over the push plate 432. The push plate 432 is then reset by the spring 433.

[0085] A first one-way valve is provided on the surface of the air chamber 431; the air chamber 431 is connected to the fixed suction cup 3242 through a conduit and a second one-way valve;

[0086] As shown in Figures 5 and 6, a dust collection box 434 is also provided at the connection between the air chamber 422 and the fixed suction cup 3242. Multiple filter plates are arranged at intervals from left to right inside the dust collection box 434.

[0087] Among them, the first one-way valve is a commercially available one-way valve that exhausts air from the inside of the air chamber 431 to the outside in one direction, and the second one-way valve is a commercially available one-way valve that allows air to enter the air chamber 431 from the fixed suction cup 3242 in one direction; the fixed suction cup 3242, the air chamber 422, and the filter plate are all commercially available products.

[0088] Example 4

[0089] As shown in Figure 8, the difference from Example 2 is that the process of preparing a multi-station machining device and machining method for precision casting of copper alloys in Example 3 is used.

[0090] The rack 33 drives the gear 312 to rotate, which in turn drives the worm gear 313 to rotate, which in turn drives the worm 315 to rotate. When controlling the angular position of part 1, the angular connecting rod 232 is pressed down, and the worm gear 315 can be driven to rotate by power, which drives the guide frame 321 to move and clamp and fix part 1 from different directions.

Claims

1. A multi-station machining device for precision copper alloy castings, characterized in that, The system includes a base plate (21), a fixing plate (22) mounted on the base plate (21), an angular fixing assembly (23) mounted on one side of the fixing plate (22), a multi-station fixing component (2) consisting of an axial clamping assembly (24) mounted on the base plate (21), an auxiliary reinforcement unit (3) mounted on the base plate (21), and a transformer assembly (4) driven by the auxiliary reinforcement unit (3); the surface of the base plate (21) is provided with a plurality of mounting holes (211) for fixing parts at intervals; a support plate (212) is also provided at the bottom of the base plate (21); the angular fixing assembly (23) The axial clamping assembly (24) includes an angular cylinder (231) disposed on one side of the fixed plate (22), an angular connecting rod (232) disposed on the output end of the angular cylinder (231), and a guide plate (233) disposed on the base plate (21) and slidably engaged with the angular connecting rod (232); a clamping plate (2321) is disposed at the bottom of the angular connecting rod (232); the axial clamping assembly (24) includes a positioning pin (241) corresponding to the mounting hole (211), a clamping cylinder (242) disposed at the bottom of the base plate (21), and a guide plate (233) disposed on the output end of the clamping cylinder (242) and extending through the mounting hole (211). The flange thread (243) passing through the positioning pin (241) and the waist groove pressure plate (244) disposed at the bottom of the flange thread (243) and movably engaged with the flange thread (243); the auxiliary reinforcement unit (3) includes a braking assembly (31) disposed on the base plate (21), an auxiliary clamping member (32) disposed on the braking assembly (31), and a rack (33) disposed on the angular connecting rod (232); the transformer assembly (4) includes a turntable (42) rotatably disposed on the base plate (21) via a support rod (41), and a rack (33) disposed on the turntable. The transformer module (43) on the disc (42) is rotatably mounted on the base plate (21) via the support plate (311) and the rotating rod (44) is mounted on one end of the shaft (45); the braking assembly (31) includes a gear (312) sleeved on the shaft (45) and meshing with the rack (33), a worm gear (313) sleeved on the other end of the shaft (45), and a worm (315) rotatably connected to the support frame (314) mounted on the base plate (21); when the rack (33) moves, the rotating rod (44) can be driven to rotate through the transmission of the gear (312).

2. The multi-station machining device for precision copper alloy castings according to claim 1, characterized in that, The auxiliary clamping component (32) includes a guide frame (321) disposed at one end of the worm gear (315), guide rods (322) disposed at both ends of the guide frame (321), a guide block (323) disposed at the bottom of the guide rod (322), and a clamping body (324) that is slidably engaged with the base plate (21); the surface of the clamping body (324) is provided with a guide groove (3241) that is slidably engaged with the guide block (323).

3. The multi-station machining device for precision copper alloy castings according to claim 2, characterized in that, The clamping body (324) is provided with a fixed suction cup (3242) at one end; the turntable (42) is provided with a plurality of guide rails (421) in a radiating pattern on its surface; the transformer module (43) includes a push plate (432) slidably connected to the guide rails (421), an air chamber (431) provided on one side of the push plate (432), and a spring (433) provided on the other side of the push plate (432) and connected to the end of the guide rails (421); the bottom of the rotating rod (44) is provided with a push block that can contact the push plate (432); the push plate (432) The push plate (432) is a telescopic structure consisting of an upper telescopic part and a lower fixed part. The fixed part of the push plate (432) is connected to the spring (433). The telescopic part of the push plate (432) has an inclined surface for the push block to compress the push plate (432) and reset it. The inner bottom of the guide rail (421) away from the center of the turntable (42) is also provided with a slope groove (4213) that allows the push plate (432) to descend. The surface of the air chamber (431) is provided with a first one-way valve. The air chamber (431) and the fixed suction cup (3242) are connected through a conduit and a second one-way valve.

4. The multi-station machining device for precision copper alloy castings according to claim 3, characterized in that, A dust collection box (434) is also provided at the connection between the air chamber (431) and the fixed suction cup (3242), and multiple filter plates are arranged at intervals inside the dust collection box (434).

5. A multi-station machining device for precision copper alloy castings according to claim 2, characterized in that, The bottom of the clamping body (324) is provided with a protrusion, and the bottom plate (21) is provided with a groove that slides and engages with the protrusion.

6. The multi-station machining device for precision copper alloy castings according to claim 2, characterized in that, The guide frame (321) is provided with a threaded hole that is threadedly connected to the worm (315); two support sliders (3211) are provided at the bottom of the guide frame (321) and at intervals along the length of the guide frame (321); the base plate (21) is provided with a sliding groove (213) that is slidably engaged with the support sliders (3211).

7. The processing method of the multi-station machining device for precision copper alloy castings as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. Pre-treatment: Detect the burr removal rate of the parts, and clean the surfaces of the parts, base plate (21), fixing plate (22), positioning pin (241), flange bolt (243), and waist groove pressure plate (244) respectively; S2. Positioning the parts: Place the parts on the surface of the base plate (21), fix the parts on the mounting hole (211) by the positioning pin (241), install the flange bolt (243) which is fixed to the clamping cylinder (242) through the center of the positioning pin (241), and fix the parts on the positioning pin. (241) Install the waist groove pressure plate (244), adjust the angle of the part, align the protrusion on the side wall of the part with the clamping plate (2321), control the angular cylinder (231) to fix the part in the angular direction, and control the clamping cylinder (242) to fix the part in the axial direction; S3, Part processing: Check the clamping degree of the angular cylinder (231) and the clamping cylinder (242), start the drilling, tapping and milling processing program, and after processing, blow dry the part to obtain the part product.

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