Multi-station machining device and machining method for aluminum alloy precision casting

Abstract

The invention discloses a multi-station machining device and method for an aluminum alloy precision casting. The multi-station machining device for the aluminum alloy precision casting comprises a rotary workbench, a first power source, a second power source, a plurality of clamping devices and a plurality of clamping devices, wherein the rotary workbench comprises a rotary disc and a plurality of clamping devices; the rotary disc is driven by the first power source to rotate around the rotation center of the rotary workbench; the circular conveying assembly is arranged on the periphery of the rotary workbench and comprises a circular conveying belt which is driven by a second power source to convey the dough materials to the first discharging opening. The station assembly is arranged above the clamp and comprises a feeding and discharging station and a plurality of machining stations. The air blowing assembly comprises a plurality of air nozzles right facing all the machining positions correspondingly and is used for blowing off cutting fluid and aluminum scraps on all the machining positions. The separating assembly is arranged below the first discharging opening and used for separating the cutting fluid and the large aluminum skimmings. In the whole machining process, manual operation is not needed, aluminum skimmings can be cleaned, cutting fluid and large aluminum skimmings can be separated, the overall working efficiency is improved, and meanwhile potential safety hazards caused by manual cleaning of workers are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of combined processing of aluminum castings, and in particular to a multi-station processing device and a processing method for aluminum alloy precision castings. Background Art

[0002] Aluminum alloys, thanks to their exceptional lightweight, corrosion resistance, and excellent casting properties, have become the most widely used nonferrous structural material in industry, finding widespread application in the aviation, aerospace, automotive, machinery manufacturing, shipbuilding, and chemical industries. Aluminum castings are components of various shapes and sizes obtained through a casting process in which molten pure aluminum or aluminum alloys are poured into a sand mold or metal mold cavity and then cooled and solidified. This process allows for the efficient production of complex shapes or components that are difficult to form using other methods.

[0003] Castings typically have low surface precision and machining allowances. Therefore, after casting, subsequent machining operations are necessary, such as milling or grinding critical surfaces, and precise hole positioning, drilling, reaming, or tapping. Existing aluminum alloy casting processes, whether using a low-efficiency single-machine model or a high-efficiency continuous production line, inevitably generate a large amount of aluminum chips during the cutting process due to the large machining allowances typically reserved in the design of aluminum alloy castings. This is especially true when using a production line, which involves multiple processing steps. The aluminum chips produced by different processing steps vary in form, such as lumpy aluminum chips from milling, powdery aluminum chips from grinding, and spiral aluminum chips from drilling, reaming, and tapping. Removing these aluminum chips presents an urgent challenge: on the one hand, operators need to frequently clean the aluminum chips while simultaneously loading and unloading the material, significantly reducing work efficiency; on the other hand, manual cleaning requires physical intervention near dangerous processing areas, posing a significant safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-station processing device and processing method for aluminum alloy precision castings, so as to solve the problem that aluminum chips are difficult to clean in the existing aluminum alloy precision casting processing device.

[0005] To achieve this object, the present invention adopts the following technical solutions: A multi-station processing device and processing method for aluminum alloy precision castings, comprising: A rotary workbench includes a turntable driven by a first power source to rotate around its rotation center, and a plurality of fixtures installed above the turntable for clamping workpieces; A circular conveying assembly is arranged on the periphery of the rotary worktable and includes a circular conveyor belt driven by a second power source to convey the surface material to the first discharge port; The workstation assembly is set above the fixture and includes upper and lower material positions and several processing positions. The upper and lower material positions and each processing position are respectively set corresponding to the position of each fixture. The upper and lower material positions are used for loading and unloading workpieces. Each processing position is equipped with processing equipment to perform different machining operations on the workpiece, and each processing equipment is equipped with a cooling system based on cutting fluid to cool the workpiece during processing; The air blowing assembly includes a plurality of air nozzles facing each processing position, which are used to blow off the cutting fluid and aluminum chips on each processing position; The separation component is arranged below the first discharge port and is used to separate the cutting fluid and large aluminum chips, and transport the cutting fluid and aluminum chips to the cutting fluid collection chamber and the aluminum chip collection chamber respectively. The cutting fluid collection chamber and the aluminum chip collection chamber are not connected.

[0006] Furthermore, the separation assembly includes a conveying trough, end boxes fixed to both sides of the conveying trough, a screw rod for conveying materials is provided in the conveying trough, the screw rod is rotatably connected to the end boxes on both sides and is driven to rotate by a third motor; The bottom surface of the conveying trough is provided with a plurality of first filter holes distributed along the material conveying direction, and the lower portion of the first filter holes faces the cutting fluid collection chamber; the end of the conveying trough along the material conveying direction is provided with a second discharge port for the material to pass through, and the lower portion of the second discharge port faces the aluminum chip collection chamber; A brush roller is provided below the bottom surface of the conveying trough, the bristles on the brush roller abut against the first filter hole, and the brush roller is rotatably connected to the end boxes on both sides and is driven to rotate by the fourth motor.

[0007] Furthermore, the first filter hole is a long strip hole, the first filter hole is tilted, and the downward tilt direction of the first filter hole is opposite to the rotation direction of the corresponding spiral rod; The rotation direction of the brush roller is opposite to that of the corresponding spiral rod; Second filtering holes are evenly distributed on the spiral blades of the spiral rod.

[0008] Furthermore, the conveying trough is arranged obliquely upward along the material conveying direction; There are two screw rods that rotate in opposite directions. The two screw rods are connected by a first gear set, and the first gear set is installed on the end box on one side. Two brush rollers are provided and rotate in opposite directions. The two brush rollers are connected through a second gear set, and the second gear set is installed on the end box on one side.

[0009] Furthermore, a guide rib is fixedly provided on one side of the conveying trough close to the spiral rod, the guide rib is located between the two spiral rods, and the width of the guide rib near the spiral rod end is smaller than the width at the distal end; The pitch of the screw gradually decreases along the material conveying direction; There are protrusions on both sides of the guide rib, the size of the protrusions gradually increases along the material conveying direction, and the distance between adjacent protrusions gradually decreases along the material conveying direction; The convex shape is hemispherical.

[0010] Furthermore, the processing positions include a first processing position, a second processing position, a third processing position, and a fourth processing position; the first processing position, the second processing position, the third processing position, and the fourth processing position correspond to one of workpiece drilling processing, hole expansion processing, milling processing, and grinding processing respectively; There are five clamps, which are respectively arranged corresponding to the upper and lower material positions, the first processing position, the second processing position, the third processing position, and the fourth processing position.

[0011] Furthermore, the device further comprises a housing, which comprises an upper housing and a lower housing, wherein the processing equipment on the processing position is mounted on the upper housing, and a first protective door that is detachably connected or movably connected is provided on the upper housing opposite to the upper and lower material positions, and a second protective door that is detachably connected or movably connected is provided on the upper housing opposite to each processing position; The first protective door is larger than the second protective door; A material discharge guide plate is provided on the lower shell body between the first material discharge port and the separation assembly, and is used to guide the material at the first material discharge port into the separation assembly.

[0012] Furthermore, the rotary workbench further comprises a plurality of rotary support wheel groups, the rotary support wheel groups being arranged below the turntable, and the rotary support wheel groups being arranged to rotate wheels abutting against the lower surface of the turntable; The turntable has an extension portion extending outwardly in a radial direction, the extension portion is located above the circular conveying assembly and a gap is left between the extension portion and the circular conveying assembly, and a brush portion extending toward the gap is fixedly provided below the extension portion; The turntable is driven to rotate by the first motor.

[0013] Furthermore, the circular conveying assembly includes a rotary frame, a circular conveyor belt, a second motor, a first discharge port, and a plurality of pulleys, wherein the plurality of pulleys are rotatably connected to the rotary frame, the circular conveyor belt is meshed with the pulleys, and one of the pulleys is connected to the output end of the second motor; the circular conveyor belt is in a ring shape with a notch on a horizontal plane, and the notch forms the first discharge port; Conveyor belt baffles are arranged at intervals on the side of the circular conveyor belt that contacts the material; The air blowing component also includes an air compressor and an air supply pipe communicating the air compressor and the air nozzle.

[0014] A multi-station processing method for aluminum alloy precision castings, based on the multi-station processing device for aluminum alloy precision castings described in the claims, comprises the following steps: Step S1. Clamp the workpiece to be processed on the fixture corresponding to the upper and lower material positions and start the device; Step S2. The workpiece to be processed is rotated to the next processing station. The corresponding processing equipment at the processing station processes the workpiece to be processed. At the same time, the next workpiece to be processed is clamped to the next fixture corresponding to the upper and lower material stations. After the processing of the processing station is completed, the blowing assembly blows air to the processing station to blow off the cutting fluid and aluminum chips on each processing station; Step S3. The circular conveying assembly conveys the blown-off cutting fluid and aluminum chips to the first discharge port. The blown-off cutting fluid and aluminum chips fall into the separation assembly, where they are separated and conveyed to the cutting fluid collection chamber and the aluminum chip collection chamber, respectively. Step S4. Until each fixture is clamped with a workpiece, and the workpieces at the upper and lower material positions have completed processing at each processing position, replace the workpieces at the upper and lower material positions; Step S5: Continue until all workpieces are processed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides for different processing operations on a workpiece at multiple processing stations, and the rotating worktable can drive the workpiece on the fixture to the next processing station / loading and unloading after rotation, thereby realizing multi-station processing of aluminum alloy precision castings. After the workpiece is processed, the air blowing assembly blows the cutting fluid and aluminum chips from each processing station to the circular conveying assembly. The blown-off cutting fluid and aluminum chips are transported to the first unloading port via the circular conveying assembly and fall onto the separation assembly. The separation assembly separates the cutting fluid and aluminum chips and transports them to the cutting fluid collection chamber and the aluminum chip collection chamber, respectively, to separate the cutting fluid and large aluminum chips. Throughout the entire processing process, the aluminum chips can be cleaned and the cutting fluid and large aluminum chips can be separated without manual operation, thereby improving overall work efficiency and avoiding the safety hazards of manual cleaning by staff.

[0016] In the present invention, a mixture of cutting fluid and aluminum chips is transported toward a second discharge port by a rotating screw. During the transport process, the mixture of cutting fluid and aluminum chips is subjected to the combined effects of the centrifugal force brought by the rotating screw, the extrusion between the spiral blades on the screw and the conveying trough, and the gravity of the mixture itself. The mixture tends to move toward the first filter hole at the bottom of the conveying trough. Since large pieces of aluminum chips cannot pass through the first filter hole, the cutting fluid and the large pieces of aluminum chips are separated. In addition, since aluminum chips in different states are generated after the combined processing of multiple processes, such as block aluminum chips generated by milling, powder aluminum chips formed by grinding, and spiral aluminum chips generated by drilling, reaming and tapping, the block aluminum chips and spiral aluminum chips may get stuck on the first filter hole, and the powder aluminum chips may adhere to the first filter hole after contacting water, thereby causing the first filter hole to be blocked. The first filter hole is cleaned by a brush roller below the first filter hole to prevent the first filter hole from being blocked.

[0017] When using the multi-station processing device for aluminum alloy precision castings in the present invention to process workpieces, the operator loads and unloads the workpiece at the loading and unloading positions, without having to load and unload the workpiece at the processing position. This can avoid the operator's hands from moving directly in the processing area of ​​the processing equipment during the processing process, reducing safety hazards during the loading and unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative work.

[0019] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0020] Figure 1 It is a three-dimensional schematic diagram of the multi-station processing device for aluminum alloy precision castings in Example 1 of the present invention.

[0021] Figure 2 This is a three-dimensional schematic diagram of the multi-station processing device for aluminum alloy precision castings with the upper shell hidden in Example 1 of the present invention.

[0022] Figure 3 This is a three-dimensional schematic diagram of the connection between the rotary worktable and the circular conveying assembly in Example 1 of the present invention.

[0023] Figure 4 This is a top view of the connection between the rotary worktable and the circular conveying assembly in Example 1 of the present invention.

[0024] Figure 5 It is a three-dimensional schematic diagram of the rotating workbench in Example 1 of the present invention.

[0025] Figure 6 It is a three-dimensional schematic diagram of the circular conveying assembly in Example 1 of the present invention.

[0026] Figure 7 This is a three-dimensional schematic diagram of the circular conveying assembly in Example 1 of the present invention after the circular conveyor belt is hidden.

[0027] Figure 8 This is a cross-sectional view of a multi-station processing device for aluminum alloy precision castings in Example 1 of the present invention.

[0028] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of point A in the middle.

[0029] Figure 10 A three-dimensional diagram of the separation components in Example 1 of the present invention Figure 1 .

[0030] Figure 11 A three-dimensional diagram of the separation components in Example 1 of the present invention Figure 2 .

[0031] Figure 12 This is a top view of the separation component in Example 1 of the present invention.

[0032] Figure 13 It is a three-dimensional schematic diagram of the conveying trough in Example 1 of the present invention.

[0033] Figure 14 Schematic diagram of the first gear set and the second gear set in embodiment 1 of the present invention.

[0034] Figure 15 It is a three-dimensional schematic diagram of the spiral rod in the second embodiment of the present invention.

[0035] Figure 16 It is a three-dimensional schematic diagram of the conveying trough in the second embodiment of the present invention.

[0036] Figure 17 Schematic diagram of the first gear set and the second gear set in embodiment three of the present invention.

[0037] Figure 18 Schematic diagram of the first gear set and the second gear set in embodiment 4 of the present invention.

[0038] Figure 19 Schematic diagram of the first gear set and the second gear set in embodiment five of the present invention.

[0039] Figure 20 It is a top view of the separation components in the fourth and fifth embodiments of the present invention.

[0040] Illustrations: 1. Device housing; 11. Upper housing; 111. First protective door; 112. Second protective door; 12. Lower housing; 2. Rotating worktable; 21. Turntable; 211. Extension portion; 212. Brush portion; 22. Clamp; 23. First motor; 24. Rotary support wheel assembly; 3. Circular conveyor assembly; 31. Rotating frame; 32. Circular conveyor belt; 321. Conveyor belt baffle; 33. Second motor; 34. First discharge port; 35. Pulley; 4. Workstation assembly; 41. Upper and lower material positions; 42. First processing position; 43. Second processing position; 44. Third processing position; 45. Fourth processing position; 5. Air blowing assembly; 51. Air compressor; 52. Air pipe; 53. Air nozzle; 6. Separation assembly; 61. End housing; 62. Conveying trough; 621. First filter hole; 622. Second discharge port; 623. Guide rib; 6231. Protrusion; 63. Screw rod; 631. Second filter hole; 64. Third motor; 65. Brush roller; 66. Fourth motor; 67. First gear set; 68. Second gear set; 71. Material unloading guide plate; 72. Cutting fluid collection chamber; 73. Aluminum chip collection chamber. DETAILED DESCRIPTION

[0041] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0044] Example 1: The multi-station processing device for aluminum alloy precision castings described in this embodiment is used to realize multi-station and multi-process processing of aluminum alloy precision castings, combined with Figure 1-Figure 2As shown, the multi-station processing device for aluminum alloy precision castings includes a device housing 1, a rotary table 2, a circular conveying assembly 3, a station assembly 4, an air blowing assembly 5, and a separation assembly 6. The device housing 1 is used to install other components and serve as a barrier for physical isolation and protection of the device. The rotary table 2 is used to drive the workpiece clamped above it to the unloading position 41 and various processing positions on the station assembly 4. The station assembly 4 is used for loading and unloading workpieces and multi-step processing. The air blowing assembly 5 is used to blow cutting fluid and aluminum chips from various processing positions onto the circular conveying assembly 3. The circular conveying assembly 3 conveys the cutting fluid and aluminum chips mixture to the separation assembly 6. The cutting fluid and aluminum chips mixture is then separated by the separation assembly 6 and conveyed to the cutting fluid collection chamber 72 and the aluminum chips collection chamber 73, respectively.

[0045] Combine Figure 3-Figure 5 As shown, the rotary worktable 2 includes a turntable 21 driven by a first power source to rotate about its rotation center, a plurality of fixtures 22 mounted above the turntable 21 for clamping workpieces, and a plurality of swivel support wheel groups 24. In this embodiment, the first power source is a first motor 23. The turntable 21 is driven by the first motor 23 to rotate, driving the fixtures 22 to rotate about the rotation center of the turntable 21, thereby driving the workpiece clamped on the fixtures 22 to rotate, wherein the rotation center of the turntable 21 is its central axis. The swivel support wheel group 24 is disposed below the turntable 21, and the swivel support wheel group 24 rotates and is provided with wheels that abut the lower surface of the turntable 21. The swivel support wheel group 24 is used to support the circumference of the turntable 21. When the turntable 21 rotates, the lower surface of the turntable 21 and the swivel support wheel group 24 are in rolling friction, which reduces the friction between the two while supporting the turntable 21.

[0046] Combine Figure 6-Figure 7As shown, the circular conveyor assembly 3 is disposed around the rotating worktable 2 and includes a circular conveyor belt 32 driven by a second power source to convey the surface material to a first discharge port 34. The circular conveyor belt 32 is used to convey the mixture of cutting fluid and aluminum chips to the first discharge port 34. In this embodiment, the second power source is a second motor 33. The circular conveyor assembly 3 also includes a rotating frame 31, a second motor 33, and a plurality of pulleys 35. The rotating frame 31 is fixedly mounted on the device housing 1. The plurality of pulleys 35 are rotatably connected to the rotating frame 31. The circular conveyor belt 32 is meshed with the pulleys 35, one of which is connected to the output end of the second motor 33. The second motor 33 drives one of the pulleys 35 to rotate, thereby driving the circular conveyor belt 32 to move along the rotating frame 31, thereby conveying the material on the circular conveyor belt 32. The circular conveyor belt 32 is annular with a notch on the horizontal plane. The notch forms the first discharge port 34. When conveying material above it, the circular conveyor belt 32 ultimately delivers the material to the annular notch, i.e., the first discharge port 34. Conveyor belt baffles 321 are arranged at intervals on the side of the circular conveyor belt 32 that contacts the material. The conveyor belt baffles 321 form unit compartments, which can effectively prevent the material from slipping. In particular, in this embodiment, the cutting fluid and aluminum chip mixture is a solid-liquid mixture. The cutting fluid is easy to slip on the circular conveyor belt 32. The conveyor belt baffles 321 can push the cutting fluid and aluminum chip mixture toward the first discharge port 34, thereby improving the conveying efficiency of the first discharge port 34.

[0047] like Figure 9 The turntable 21 has an extension portion 211 extending outward in the radial direction. The extension portion 211 is located above the circular conveying assembly 3 and a gap is left between the extension portion 211 and the circular conveying assembly 3. A brush portion 212 extending toward the gap is fixedly provided below the extension portion 211. The extension portion 211 is located above the circular conveying assembly 3. In this way, when the cutting fluid and aluminum chips mixture is blown to the circular conveying assembly 3 from each processing position, the mixture can be reduced from falling into the gap between the turntable 21 and the circular conveying assembly 3. In addition, a brush portion 212 extending toward the gap is fixedly provided below the extension portion 211, which further prevents the cutting fluid and aluminum chips mixture from flowing into the gap between the turntable 21 and the circular conveying assembly 3, thereby avoiding the cutting fluid and aluminum chips mixture from flowing into the gap and affecting the rotation of the turntable 21.

[0048] Combine Figure 2 and Figure 8As shown, the workstation assembly 4 is positioned above the fixture 22 and includes a top and bottom material station 41 and several processing stations. The top and bottom material stations 41 and the processing stations are respectively arranged to correspond to the positions of the fixtures 22. The top and bottom material stations 41 are used for loading and unloading workpieces. Each processing station is equipped with processing equipment to perform different machining operations on the workpieces, and each processing equipment is equipped with a cooling system based on cutting fluid to cool the workpieces during processing. When the turntable 21 rotates with the fixture 22, the top and bottom material stations 41 and the fixture 22 below the processing station can be switched, that is, the processing process of the workpiece clamped in the fixture 22 can be switched, thereby realizing multi-station and multi-process combined processing. In this embodiment, the processing positions include a first processing position 42, a second processing position 43, a third processing position 44, and a fourth processing position 45; the first processing position 42, the second processing position 43, the third processing position 44, and the fourth processing position 45 correspond to one of the workpiece drilling processing, reaming processing, milling processing, and grinding processing, respectively, and the process corresponding to each processing position can be selected according to demand. For example, the first processing position 42, the second processing position 43, the third processing position 44, and the fourth processing position 45 correspond to drilling processing, reaming processing, milling processing, and grinding processing, respectively, and the process can also be reduced as needed. There are five clamps 22, which are respectively corresponding to the upper and lower material positions 41, the first processing position 42, the second processing position 43, the third processing position 44, and the fourth processing position 45. When one of the clamps 22 is facing the upper and lower material positions 41, the other four clamps 22 are respectively facing the first processing position 42, the second processing position 43, the third processing position 44, and the fourth processing position 45.

[0049] The device housing 1 includes an upper shell 11 and a lower shell 12. The processing equipment on the processing position is installed on the upper shell 11, and a first protective door 111 that is detachably connected or movably connected is provided on the upper shell 11 opposite the loading and unloading positions 41. A second protective door 112 that is detachably connected or movably connected is provided on the upper shell 11 opposite each processing position. The corresponding loading and unloading positions 41 / processing position can be observed / operated by opening the first protective door 111 and / or the second protective door 112. In this embodiment, the first protective door 111 is larger than the second protective door 112. Since operators need to frequently load and unload materials at the loading and unloading positions 41 and rarely need to directly operate on other processing positions, the first protective door 111 is set larger than the second protective door 112. In this way, while ensuring the strength of the upper shell 11, there is sufficient operating space for the operator to operate.

[0050] The air blowing assembly 5 includes an air compressor 51, a plurality of air nozzles 53, and an air supply pipe 52 connecting the air compressor 51 and the air nozzles 53. The number of air nozzles 53 is the same as the number of processing stations, and they are respectively facing each processing station and are used to blow away the cutting fluid and aluminum chips on each processing station. The air compressor 51 and the air supply pipe 52 are fixedly mounted on the device housing 1. When the air compressor 51 is in operation, it generates high-pressure gas, which is sprayed from the air nozzles 53 to each processing station after passing through the air supply pipe 52, thereby blowing away the cutting fluid and aluminum chips on each processing station. In this embodiment, the air nozzles 53 are located above the center of the turntable 21. In this way, when the air nozzles 53 spray high-pressure gas, they spray from the center to the surrounding area. The circular conveying assembly 3 is arranged on the periphery of the rotary worktable 2. In this way, when the cutting fluid and aluminum chips on each processing station are blown by the high-pressure gas, they are blown toward the circular conveying assembly 3. Then, under the obstruction of the upper shell 11, the cutting fluid and aluminum chips are blown onto the circular conveying assembly 3. Blow off the cutting fluid and aluminum chips on each processing position in time to avoid the residual aluminum chips from affecting the processing of the next process, affecting the processing accuracy of the next process, and avoiding residual aluminum chips from scratching the machining tools.

[0051] Combine Figure 8 As shown, the separation assembly 6 is disposed below the first discharge port 34 and is used to separate the cutting fluid and aluminum chips that fall from the first discharge port 34 and transport them to a cutting fluid collection chamber 72 and an aluminum chip collection chamber 73, respectively. The cutting fluid collection chamber 72 and the aluminum chip collection chamber 73 are not connected. A discharge guide plate 71 is provided on the lower housing 12 between the first discharge port 34 and the separation assembly 6 to guide the material at the first discharge port 34 into the separation assembly 6. In this embodiment, the cutting fluid collection chamber 72 and the aluminum chip collection chamber 73 are movable and detachably connected within the lower housing 12, facilitating subsequent processing of the cutting fluid and aluminum chips in the cutting fluid collection chamber 72 and the aluminum chip collection chamber 73. The present invention can also include a built-in / external cutting fluid filter, which is connected to the cutting fluid collection chamber 72 and the cooling system on each processing equipment. After the cutting fluid in the cutting fluid collection chamber 72 is allowed to settle, it is filtered by the cutting fluid filter to achieve the recycling of the cutting fluid. In this process, large aluminum chips are separated by the separation component 6 of the present invention, and powdered / small aluminum chips are separated by settling, and then precisely filtered by the cutting fluid filter, thereby achieving efficient purification and recycling of the cutting fluid.

[0052] Combine Figure 10-12As shown, the separation assembly 6 includes a conveying trough 62 and end boxes 61 fixed to both sides of the conveying trough 62. A screw rod 63 for conveying material is disposed within the conveying trough 62. The screw rod 63 is rotatably connected to the end boxes 61 on both sides and is driven to rotate by a third motor 64. In this embodiment, two screw rods 63 are provided and rotate in opposite directions. The two screw rods 63 are connected by a first gear set 67, which is mounted on one side of the end boxes 61. When the third motor 64 is activated, it drives one of the screw rods 63 to rotate, and the other screw rod 63 is driven to rotate in the opposite direction via the first gear set 67.

[0053] Several first filter holes 621 are distributed on the bottom surface of the conveying trough 62 along the material conveying direction, which are used to filter cutting fluid and large aluminum chips. The first filter holes 621 are directly opposite to the cutting fluid collection chamber 72; a second discharge port 622 for material to pass through is provided at the end of the conveying trough 62 along the material conveying direction, and the second discharge port 622 is directly opposite to the aluminum chip collection chamber 73. After the cutting fluid and large aluminum chips are conveyed and separated by the separation component 6, the cutting fluid falls into the cutting fluid collection chamber 72 from the first filter holes 621. The large aluminum chips cannot pass through the first filter holes 621, and are finally conveyed to the second discharge port 622 by the screw rod 63 and fall into the aluminum chip collection chamber 73. The conveying trough 62 described in this embodiment is arranged upwardly and obliquely along the material conveying direction. On the one hand, the overall length is increased in the same horizontal space, that is, the filtration length is increased, which can make the separation of the cutting fluid and aluminum chips mixture more complete; in addition, the conveying trough 62 is arranged upwardly and the spiral rod 63 is also arranged upwardly and obliquely. When the spiral rod 63 conveys the cutting fluid and aluminum chips mixture obliquely upward, it not only needs to resist the friction between it and the conveying trough 62, but also needs to resist the gravity of the cutting fluid and aluminum chips mixture itself. The cutting fluid and aluminum chips mixture is more likely to roll in the conveying trough 62, increasing the collision between the cutting fluid and aluminum chips mixture and the wall of the conveying trough 62, which is beneficial to the separation of the cutting fluid and aluminum chips mixture; at the same time, the cutting fluid can also flow downward from the gap between the spiral rod 63 and the conveying trough 62 under the action of its own gravity, thereby increasing the contact opportunity of the cutting fluid with the first filter hole 621, thereby increasing the possibility of the cutting fluid passing through the first filter hole 621 and improving the cutting fluid filtration effect.

[0054] In this embodiment, second filter holes 631 are evenly distributed on the spiral blades of the screw rod 63. When the screw rod 63 tilts upward to convey the mixed material, the cutting fluid will fall downward from the second filter holes 631 under the action of its own gravity, further promoting the separation of the two. At the same time, after the cutting fluid falls from the second filter holes 631, the time the cutting fluid stays in the conveying trough 62 is also extended, increasing the contact opportunity between the cutting fluid and the first filter holes 621, thereby increasing the possibility of the cutting fluid passing through the first filter holes 621 and improving the cutting fluid filtering effect.

[0055] A brush roller 65 is provided below the bottom surface of the conveying trough 62. The bristles on the brush roller 65 abut against the first filter hole 621. The brush roller 65 is rotatably connected to the end housing 61 on both sides and is driven to rotate by a fourth motor 66. When the brush roller 65 is driven to rotate by the fourth motor 66, the bristles on the brush roller 65 can clean the first filter hole 621 and prevent the first filter hole 621 from clogging. Two brush rollers 65 are provided and rotate in opposite directions, corresponding to the first filter hole 621 on both sides. The two brush rollers 65 are connected by a second gear set 68, which is mounted on one end housing 61. The fourth motor 66 drives one of the brush rollers 65 to rotate, and the second gear set 68 drives the other brush roller 65 to rotate in the opposite direction.

[0056] Combine Figure 12 As shown, the first filter hole 621 is an elongated hole. At the same aperture ratio, the elongated hole has a larger flow area than the circular hole, which improves the cutting fluid flow rate. At the same time, due to the narrow width of the elongated hole, large aluminum chips cannot pass through, thus improving the separation efficiency of cutting fluid and aluminum chips. The first filter hole 621 is tilted. The inclined surface destroys the capillary effect and prevents the surface tension of the cutting fluid from being retained. In addition, when the screw rod 63 pushes the material, the inclined hole provides an inclined surface, reducing the possibility of aluminum chips accumulating at the hole mouth, thereby reducing the possibility of clogging of the first filter hole 621. In this embodiment, the downward tilt direction of the first filter hole 621 is opposite to the rotation direction of the corresponding screw rod 63. For example, if the rotation direction of the screw rod 63 is right-handed, the first filter hole 621 tilts from the upper right to the lower left. At this time, the right-handed screw rod 63 rotates clockwise to convey the material forward. The tangential velocity direction of the mixture on the inner wall of the conveying trough 62 is the upper left, that is, close to perpendicular to the length of the hole, increasing the area of ​​the mixture impacting the first filter hole 621, thereby increasing the collision effect of the cutting fluid and aluminum chips mixture with the first filter hole 621, and improving the filtering effect of the two. Figure 14 As shown, in this embodiment, the tangential movement direction of the two gears in the first gear set 67 is downward at the meshing position, that is, Figure 14 The left gear in the first gear set 67 shown in the figure rotates clockwise, and the right gear rotates counterclockwise. In order to enable the corresponding screw rod 63 to send the material upward when the left gear in the first gear set 67 rotates clockwise, the screw rod 63 corresponding to the left gear is right-handed, and similarly, the screw rod 63 corresponding to the right gear is left-handed. In this way, the conveying extrusion force of the two screw rods 63 on the cutting fluid and aluminum chips mixture in the middle is downward, which is conducive to squeezing the cutting fluid and aluminum chips mixture to the bottom of the conveying trough 62. The cutting fluid and aluminum chips mixture is subjected to a downward extrusion force in the middle of the bottom of the conveying trough 62, that is, the cutting fluid and aluminum chips mixture is pressed toward the first filter hole 621 at the bottom of the conveying trough 62. In this embodiment, the rotation direction of the brush roller 65 is opposite to that of the corresponding screw rod 63, as shown in FIG. Figure 14As shown, the brush roller 65 corresponding to the left gear rotates counterclockwise, while the brush roller 65 corresponding to the right gear rotates clockwise. If the first filter hole 621 is clogged, the rotation direction of the brush roller 65 and the corresponding screw rod 63 are opposite, and the thrust of the screw rod 63 and the brush roller 65 on the blockage in the first filter hole 621 is the same in the tangential direction, making it easier to push the blockage out of the first filter hole 621. In this embodiment, the thrust of the screw rod 63 and the brush roller 65 on the blockage in the first filter hole 621 is directed toward both sides in the tangential direction, so that the combined force on the blockage in the first filter hole 621 is maximized, making it easier to remove the blockage in the first filter hole 621.

[0057] Combine Figure 13 As shown, in this embodiment, a guide rib 623 is fixedly provided on the conveying trough 62 near the side of the spiral rod 63. The guide rib 623 is located between the two spiral rods 63, and the width of the guide rib 623 near the end of the spiral rod 63 is smaller than the width of the distal end. Specifically, the cross-section of the guide rib 623 is triangular. The guide rib 623 guides the mixture to flow to both sides, and guides the mixed material to the first filter holes 621 on both sides to prevent the mixed material from remaining in the dead angle between the two spiral rods 63. When rotating, the mixed material will collide with the end of the guide rib 623 near the spiral rod 63, that is, the small end of the guide rib 623. The collision helps to separate the mixed material, helps to break the entanglement of spiral aluminum chips and the agglomeration of powdered aluminum chips, and release more liquid.

[0058] Example 2: The multi-station processing device for aluminum alloy precision castings described in this embodiment is used to realize multi-station and multi-process processing of aluminum alloy precision castings, combined with Figure 15-16 As shown, this embodiment differs from the first embodiment in that the pitch of screw 63 gradually decreases along the material conveying direction. Specifically, the pitch of screw 63 is large at the material inlet, facilitating rapid feeding and preventing initial accumulation. The pitch of screw 63 is small at the material outlet, enhancing extrusion and promoting solid-liquid separation. The variable pitch of screw 63 adapts to changes in material state. At the inlet, loose material is efficiently advanced by the large pitch. At the outlet, the material becomes dense due to partial liquid separation, and the small pitch provides stronger extrusion, further facilitating the separation of the remaining cutting fluid and aluminum chips mixture. The aluminum chips extruded by the variable pitch spiral 63 have less residual cutting liquid on the surface and a more compact structure. In particular, the spiral aluminum chips have a small pitch at the outlet to generate a high-intensity extrusion force, which exceeds the elastic limit of the aluminum chips and triggers multi-directional shear fracture of the spiral structure. The broken aluminum chips are squeezed under three-dimensional constraints at the end of the spiral channel, and a geometric interlocking effect is generated between the fragments. Stable stacking is formed through mechanical meshing, and they are spontaneously reorganized into dense blocks. No subsequent crushing treatment is required, which avoids the common problems of fine powder dispersion, metal oxidation degradation and energy loss in the crushing process, and is conducive to the subsequent recycling of aluminum chips.

[0059] Guide rib 623 is flanked by protrusions 6231, which increase disturbance. During spiral conveying, the mixed material impacts the protrusions 6231, facilitating the release of cutting fluid from the mixed material and, consequently, the separation of the cutting fluid-aluminum-chip mixture. The protrusions 6231 gradually increase in size along the conveying direction. At the inlet, the small-diameter protrusions 6231 provide low resistance, allowing material (especially loose powdered aluminum chips and cutting fluid) to flow quickly, reducing initial pressure drop and energy consumption. At the outlet, the larger-diameter protrusions 6231 increase compression and friction on the material, enhancing shearing, releasing residual cutting fluid from the chips and improving filtration efficiency. Furthermore, as conveying progresses, the material becomes denser due to the decreasing pitch of the screw 63. The larger-diameter protrusions 6231 provide a stronger "kneading" action at the outlet, effectively disposing of compacted spiral aluminum chips and powdered aluminum chips, preventing them from clogging the filter screen. This adapts to the compressed state of the material, and the gradual change in protrusion diameter avoids sudden changes in resistance, ensuring continuous conveying. The spacing between adjacent protrusions 6231 gradually decreases along the material conveying direction. At the conveyor inlet, the wide spacing allows for free material flow, reducing the risk of powdered aluminum chips flying and spirals becoming entangled. At the outlet, the narrow spacing increases the density of the protrusions, applying frequent "micro-agitation" to the material, facilitating the further release of cutting fluid from the mixed material. The gradual change in the size and spacing of protrusions 6231 adapts to changes in the material state. Combined with the changing pitch of screw 63, this gradually increases disturbance, intensifying material tumbling and further enhancing solid-liquid separation. Protrusions 6231 are hemispherical in shape. This hemispherical curved surface is smooth and has no dead angles. This prevents spirals or powdery lumps from snagging, becoming entangled, or becoming stuck on the edges of protrusions 6231. Spirals, in particular, tend to form long chains, and the hemispherical protrusions allow them to slide smoothly through, reducing mechanical blockage.

[0060] Example 3: The multi-station processing device for aluminum alloy precision castings described in this embodiment is used to realize multi-station and multi-process processing of aluminum alloy precision castings, combined with Figure 17As shown, the difference between this embodiment and the first embodiment is that the rotation direction of the brush roller 65 is the same as that of the corresponding screw rod 63. When the screw rod 63 rotates clockwise to enable the screw rod 63 to transport the material upward, the right-handed screw rod 63 rotates clockwise, and the downward tilt direction of the first filter hole 621 is opposite to the rotation direction of the corresponding screw rod 63. When the first filter hole 621 is tilted from the upper right to the lower left when viewed from above the screw rod 63, due to the mirror relationship, the first filter hole 621 is tilted from the upper left to the lower right when viewed from below the brush roller 65. The rotation direction of the brush roller 65 is the same as that of the screw rod 63, that is, the brush roller 65 also rotates clockwise. When the brush roller 65 rotates clockwise, the tangential direction of the first filter hole 621 is to the right, that is, the first filter hole 621 is tilted downward. The corresponding brush roller 65 pushes the blockage in the first filter hole 621 to the lower part of the first filter hole 621, facilitating the cleaning of the blockage in the first filter hole 621. Since the screw rod 63 and the brush roller 65 in the present invention are driven by the third motor 64 and the fourth motor 66, respectively, that is, the screw rod 63 and the brush roller 65 are driven by two different motors, the rotation direction of the screw rod 63 and the brush roller 65 can be controlled by controlling the forward and reverse rotation of the third motor 64 and the fourth motor 66. In addition, when the rotation direction of the brush roller 65 and the corresponding screw rod 63 are opposite to each other after a period of operation in Example 1, if it is found that the blockage is squeezed to one end of the first filter hole 621, the fourth motor 66 can be adjusted to rotate forward and reverse so that the rotation direction of the brush roller 65 is the same as that of the corresponding screw rod 63. The brush roller 65 pushes the blockage in the first filter hole 621 to the lower part of the first filter hole 621, which is more likely to cause secondary blockage in the first filter hole 621.

[0061] Example 4: The multi-station processing device for aluminum alloy precision castings described in this embodiment is used to realize multi-station and multi-process processing of aluminum alloy precision castings, combined with Figure 18 As shown, the difference between this embodiment and the first embodiment is that the tangential motion direction of the two gears in the first gear set 67 in this embodiment is upward at the meshing position. In addition, the rotation direction of the brush roller 65 is opposite to that of the corresponding screw rod 63, that is, Figure 18 In the first gear set 67 shown in FIG, the left gear rotates counterclockwise, and the right gear rotates clockwise. In order to enable the screw rod 63 corresponding to the left gear in the first gear set 67 to be able to send the material upward when the left gear rotates counterclockwise, the screw rod 63 corresponding to the left gear is left-handed, and similarly, the screw rod 63 corresponding to the right gear is right-handed, as shown in FIG. Figure 20As shown, the two screw rods 63 exert upward extrusion force on the cutting fluid and aluminum chips mixture in the middle, which is conducive to spreading the extruded cutting fluid and aluminum chips mixture, that is, enhancing the relative movement range between the cutting fluid and aluminum chips mixture. This "one extrusion and one dispersion" method is conducive to fully releasing the cutting fluid in the gap between the aluminum chips, and further facilitating the separation of the cutting fluid and aluminum chips. Similarly, the rotation direction of the brush roller 65 is opposite to that of the corresponding screw rod 63, as shown in FIG. Figure 18 As shown, the brush roller 65 corresponding to the left gear rotates clockwise, while the brush roller 65 corresponding to the right gear rotates counterclockwise. If the first filter hole 621 is clogged, the rotation direction of the brush roller 65 and the corresponding screw rod 63 are opposite, and the thrust of the screw rod 63 and the brush roller 65 on the blockage in the first filter hole 621 are both the same in the tangential direction, making it easier to push the blockage out of the first filter hole 621. In this embodiment, the thrust of the screw rod 63 and the brush roller 65 on the blockage in the first filter hole 621 are both toward the center in the tangential direction, so that the combined force on the blockage in the first filter hole 621 is maximized, making it easier to remove the blockage in the first filter hole 621.

[0062] Embodiment 5: The multi-station processing device for aluminum alloy precision castings described in this embodiment is used to realize multi-station and multi-process processing of aluminum alloy precision castings, combined with Figure 19As shown, the difference between this embodiment and the third embodiment is that the rotation direction of the brush roller 65 is the same as that of the corresponding screw rod 63. Similarly, when the screw rod 63 rotates clockwise to enable the screw rod 63 to transport the material upward, the right-handed screw rod 63 rotates clockwise, and the downward tilt direction of the first filter hole 621 is opposite to the rotation direction of the corresponding screw rod 63. When the first filter hole 621 is tilted from the upper right to the lower left when viewed from the upper direction of the screw rod 63, due to the mirror relationship, the first filter hole 621 is tilted from the upper left to the lower right when viewed from the lower direction of the brush roller 65. The rotation direction of the brush roller 65 is the same as that of the screw rod 63, that is, the brush roller 65 also rotates clockwise. When the brush roller 65 rotates clockwise at the first filter hole 621, the tangential direction is to the right, that is, the first filter hole 621 is tilted downward. The corresponding brush roller 65 pushes the blockage in the first filter hole 621 to the lower part of the first filter hole 621, making it easier to clean the blockage in the first filter hole 621. Since the screw rod 63 and the brush roller 65 in the present invention are driven by the third motor 64 and the fourth motor 66, respectively, that is, the screw rod 63 and the brush roller 65 are driven by two different motors, the rotation direction of the screw rod 63 and the brush roller 65 can be controlled by controlling the forward and reverse rotation of the third motor 64 and the fourth motor 66. In addition, when the rotation direction of the brush roller 65 and the corresponding screw rod 63 are opposite to each other after a period of operation in Example 1, if it is found that the blockage is squeezed to one end of the first filter hole 621, the fourth motor 66 can be adjusted to rotate forward and reverse so that the rotation direction of the brush roller 65 is the same as that of the corresponding screw rod 63. The brush roller 65 pushes the blockage in the first filter hole 621 to the lower part of the first filter hole 621, which is more likely to cause secondary blockage in the first filter hole 621.

[0063] Example 6: This embodiment provides a multi-station processing method for aluminum alloy precision castings. The multi-station processing method for aluminum alloy precision castings is based on the multi-station processing device for aluminum alloy precision castings described above, and includes the following steps: Step S1. Clamp the workpiece to be processed on the fixture 22 corresponding to the upper and lower material positions 41 and start the device; Step S2. The workpiece to be processed is rotated to the next processing position. The corresponding processing equipment at the processing position processes the workpiece to be processed. At the same time, the next workpiece to be processed is clamped on the next fixture 22 corresponding to the upper and lower material positions 41. After the processing of the processing position is completed, the blowing assembly 5 blows air to the processing position to blow off the cutting fluid and aluminum chips on each processing position; Step S3. The circular conveying assembly 3 conveys the blown-off cutting fluid and aluminum chips to the first discharge port 34. The blown-off cutting fluid and aluminum chips fall into the separation assembly 6 for separation and are conveyed to the cutting fluid collection chamber 72 and the aluminum chip collection chamber 73, respectively. Step S4. Until each fixture 22 is clamped with a workpiece, and the workpiece at the upper and lower material positions 41 has completed processing at each processing position, replace the workpiece on the upper and lower material positions 41; Step S5: Continue until all workpieces are processed.

[0064] In the present invention, different processing is performed on the workpiece through multiple processing positions, and the rotating worktable can drive the workpiece on the fixture to the next processing position / loading and unloading after rotation, realizing multi-position processing of aluminum alloy precision castings. After the workpiece is processed, the blowing assembly blows the cutting fluid and aluminum chips from each processing position to the circular conveying assembly. The blown cutting fluid and aluminum chips are transported to the first unloading port via the circular conveying assembly and fall onto the separation assembly. They are separated by the separation assembly and transported to the cutting fluid collection chamber and the aluminum chip collection chamber respectively, realizing the separation of the cutting fluid and large aluminum chips. During the entire processing process, the aluminum chips can be cleaned and the cutting fluid and large aluminum chips can be separated without manual operation, thereby improving overall work efficiency and avoiding the safety hazards of manual cleaning by staff.

[0065] When using the multi-station processing device for aluminum alloy precision castings in the present invention to process workpieces, the operator loads and unloads the workpiece at the loading and unloading positions, without having to load and unload the workpiece at the processing position. This can avoid the operator's hands from moving directly in the processing area of ​​the processing equipment during the processing process, reducing safety hazards during the loading and unloading process.

[0066] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station processing device for aluminum alloy precision castings, characterized by: include: A rotary workbench (2) includes a turntable (21) driven by a first power source to rotate around its rotation center, and a plurality of fixtures (22) installed above the turntable (21) for clamping workpieces; A circular conveying assembly (3) is arranged on the periphery of the rotary worktable (2), and includes a circular conveyor belt (32) driven by a second power source to convey the surface material to the first discharge port (34); A workstation assembly (4) is arranged above the fixture (22), including an upper and lower material position (41) and a plurality of processing positions, wherein the upper and lower material positions (41) and the processing positions are respectively arranged corresponding to the positions of the fixtures (22), the upper and lower material positions (41) are used for loading and unloading workpieces, and each processing position is provided with a processing device for performing different machining operations on the workpiece, and each processing device is equipped with a cooling system based on cutting fluid to cool the workpiece during processing; An air blowing assembly (5) includes a plurality of air nozzles (53) facing each processing position, respectively, for blowing off cutting fluid and aluminum chips on each processing position; A separation assembly (6) is provided below the first discharge port (34) and is used to separate cutting fluid and large aluminum chips, and to transport the cutting fluid and aluminum chips to a cutting fluid collection chamber (72) and an aluminum chip collection chamber (73), respectively. The cutting fluid collection chamber (72) and the aluminum chip collection chamber (73) are not connected.

2. The multi-station processing device for aluminum alloy precision castings according to claim 1, characterized in that: The separation assembly (6) includes a conveying trough (62), end boxes (61) fixed to both sides of the conveying trough (62), a screw rod (63) for conveying materials is provided in the conveying trough (62), and the screw rod (63) is rotatably connected to the end boxes (61) on both sides and is driven to rotate by a third motor (64); The bottom surface of the conveying trough (62) is provided with a plurality of first filter holes (621) distributed along the material conveying direction, and the first filter holes (621) are directly opposite to the cutting fluid collection chamber (72); a second discharge port (622) for the material to pass through is provided at the end of the conveying trough (62) along the material conveying direction, and the second discharge port (622) is directly opposite to the aluminum chip collection chamber (73); A brush roller (65) is provided below the bottom surface of the conveying trough (62), and the bristles on the brush roller (65) abut against the first filter hole (621). The brush roller (65) is rotatably connected to the end boxes (61) on both sides and is driven to rotate by a fourth motor (66).

3. The multi-station processing device for aluminum alloy precision castings according to claim 2, characterized in that: The first filter hole (621) is a long strip-shaped hole. The first filter hole (621) is arranged obliquely, and the downward inclination direction of the first filter hole (621) is opposite to the rotation direction of the corresponding spiral rod (63); The rotation direction of the brush roller (65) is opposite to that of the corresponding spiral rod (63); Second filter holes (631) are evenly distributed on the spiral blades of the spiral rod (63).

4. The multi-station processing device for aluminum alloy precision castings according to claim 2, characterized in that: The conveying trough (62) is arranged obliquely upward along the material conveying direction; Two spiral rods (63) are provided and rotate in opposite directions. The two spiral rods (63) are connected by a first gear set (67). The first gear set (67) is installed on the end box (61) on one side. Two brush rollers (65) are provided and rotate in opposite directions. The two brush rollers (65) are connected to each other through a second gear set (68). The second gear set (68) is installed on the end box (61) on one side.

5. The multi-station processing device for aluminum alloy precision castings according to claim 4, characterized in that: A guide rib (623) is fixedly provided on one side of the conveying trough (62) close to the spiral rod (63), the guide rib (623) is located between the two spiral rods (63), and the width of the guide rib (623) near the spiral rod (63) is smaller than the width at the distal end; The pitch of the screw rod (63) gradually decreases along the material conveying direction; Protrusions (6231) are provided on both sides of the guide rib (623), the size of the protrusions (6231) gradually increases along the material conveying direction, and the spacing between adjacent protrusions (6231) gradually decreases along the material conveying direction; The protrusion (6231) is hemispherical in shape.

6. The multi-station processing device for aluminum alloy precision castings according to claim 1, characterized in that: The processing positions include a first processing position (42), a second processing position (43), a third processing position (44), and a fourth processing position (45); the first processing position (42), the second processing position (43), the third processing position (44), and the fourth processing position (45) respectively correspond to one of workpiece drilling processing, hole expansion processing, milling processing, and grinding processing; There are five clamps (22), which are respectively arranged corresponding to the upper and lower material positions (41), the first processing position (42), the second processing position (43), the third processing position (44), and the fourth processing position (45).

7. The multi-station processing device for aluminum alloy precision castings according to claim 1, characterized in that: The device also includes a housing (1), the housing (1) including an upper housing (11) and a lower housing (12), the processing equipment on the processing position is mounted on the upper housing (11), and a first protective door (111) that is detachably connected or movably connected is provided on the upper housing (11) facing the upper and lower material positions (41), and a second protective door (112) that is detachably connected or movably connected is provided on the upper housing (11) facing each processing position; The first protective door (111) is larger than the second protective door (112); A material discharge guide plate (71) is provided on the lower shell (12) between the first material discharge port (34) and the separation assembly (6) for guiding the material at the first material discharge port (34) into the separation assembly (6).

8. The multi-station processing device for aluminum alloy precision castings according to claim 1, characterized in that: The rotary workbench (2) further comprises a plurality of rotary support wheel groups (24), wherein the rotary support wheel groups (24) are arranged below the turntable (21), and the rotary support wheel groups (24) rotate wheels provided to abut against the lower surface of the turntable (21); The turntable (21) has an extension portion (211) extending outwardly in a radial direction. The extension portion (211) is located above the circular conveying assembly (3) and a gap is left between the extension portion (211) and the circular conveying assembly (3). A brush portion (212) extending toward the gap is fixedly provided below the extension portion (211). The turntable (21) is driven to rotate by a first motor (23).

9. The multi-station processing device for aluminum alloy precision castings according to claim 1, characterized in that: The circular conveying assembly (3) comprises a rotary frame (31), a circular conveyor belt (32), a second motor (33), a first discharge port (34), and a plurality of pulleys (35). The plurality of pulleys (35) are rotatably connected to the rotary frame (31). The circular conveyor belt (32) is meshedly connected to the pulleys (35), and one of the pulleys (35) is connected to the output end of the second motor (33). The circular conveyor belt (32) is in a ring shape with a notch on a horizontal plane, and the first discharge port (34) is formed at the notch. Conveyor belt baffles (321) are arranged at intervals on the side of the circular conveyor belt (32) that contacts the material; The air blowing assembly (5) further comprises an air compressor (51) and an air delivery pipe (52) connecting the air compressor (51) and the air nozzle (53).

10. A multi-station processing method for aluminum alloy precision castings, characterized by: The multi-station processing device for aluminum alloy precision castings according to any one of claims 1 to 9 comprises the following steps: Step S1. Clamp the workpiece to be processed on the fixture (22) corresponding to the upper and lower material positions (41), and start the device; Step S2. The workpiece to be processed is rotated to the next processing position, and the corresponding processing equipment on the processing position processes the workpiece to be processed. At the same time, the next workpiece to be processed is clamped on the next fixture (22) corresponding to the upper and lower material positions (41). After the processing of the processing position is completed, the blowing component (5) blows air to the processing position to blow off the cutting fluid and aluminum chips on each processing position; Step S3. The circular conveying component (3) conveys the blown-off cutting fluid and aluminum chips to the first discharge port (34). The blown-off cutting fluid and aluminum chips fall into the separation component (6) for separation and are conveyed to the cutting fluid collection chamber (72) and the aluminum chip collection chamber (73) respectively. Step S4. until each fixture (22) is clamped with a workpiece, and the workpiece at the upper and lower material positions (41) has completed processing at each processing position, the workpiece at the upper and lower material positions (41) is replaced; Step S5: Continue until all workpieces are processed.

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