Air-blowing cleaning machine for aluminum alloy die castings

Abstract

The invention relates to the technical field of part cleaning, in particular to an air-blowing cleaning machine for aluminum alloy die castings. The air-blowing cleaning device is used for conducting air-blowing cleaning on the aluminum alloy die-casting impeller and comprises a driving mechanism, an advancing and retreating rack and a plurality of air-blowing assemblies. According to the air-blowing cleaning machine for the aluminum alloy die casting, targeted, standardized and automatic cleaning can be conducted on corresponding aluminum alloy die casting impellers, air-blowing cleaning is sufficient and thorough, dead corners and residues are avoided, it is guaranteed that preliminary air-blowing cleaning is in place, the air-blowing cleaning machine is suitable for batch machining and production operation, and the production efficiency is improved. The problems that in the prior art, due to the fact that air blowing cleaning of the die-casting impeller is not in place, surface friction damage and corrosion are possibly caused, and follow-up cleaning difficulty is increased are solved.

Description

Technical Field

[0001] This invention relates to the field of parts cleaning technology, and specifically proposes an air-blowing cleaning machine for aluminum alloy die-casting parts. Background Technology

[0002] Aluminum alloy die-cast parts refer to a class of components made of aluminum alloy material and manufactured by die casting. In this application, it specifically refers to parts such as... Figure 5 The aluminum alloy die-cast impeller shown is widely used in various devices that require the conversion or transport of fluid energy through blade rotation. After die-casting, the impeller requires precision machining to compensate for inherent defects in the die-casting process and to correct dimensional deviations, in order to meet the precision requirements for assembly and use.

[0003] After precision machining, die-cast impellers retain metal and non-metal debris or dust, aluminum oxide film, emulsion, cutting fluid, and other impurities on their surface. Preliminary cleaning with air blowing is typically required after precision machining. For die-cast impellers, this cleaning needs to cover the entire surface, especially the impeller channels. Currently, after precision machining, manual cleaning is usually required, holding the impeller in one hand and using an air gun in the other. However, when the impeller is large, the air gun's coverage is limited, necessitating frequent switching of cleaning surfaces, extending cleaning time and increasing labor intensity. Furthermore, areas, especially the inner side of the impeller channels, are prone to incomplete cleaning. Although die-cast impellers are generally subsequently cleaned using ultrasonic cleaning, inadequate air blowing cleaning still presents the following potential problems.

[0004] 1. During the transfer, transportation, or temporary storage of die-cast impellers, solid debris, powder, and other particulate impurities will rub against the surface of the die-cast impeller, causing micro-scratches and other damage, thus compromising the surface quality.

[0005] 2. Residual emulsions, cutting fluids, etc., can corrode the surface of the die-cast impeller.

[0006] 3. Residual emulsions, cutting fluids, and other liquids will form an oil film on the surface of the die-cast impeller and will cover the outer layer of the aluminum oxide film to form a composite film. In addition, there are residual solid impurities. All of these residual impurities will increase the difficulty of subsequent cleaning, prolong the cleaning time, and increase the cleaning cost. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides an air-blowing cleaning machine for aluminum alloy die castings, which solves the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention employs the following technical solution: an air-blowing cleaning machine for aluminum alloy die-casting parts, used for air-blowing cleaning of aluminum alloy die-casting impellers, comprising a drive mechanism, a forward and backward frame, and multiple air-blowing assemblies; the drive mechanism is used to drive the die-casting impeller to reciprocate and rotate during air blowing, or to rotate intermittently to switch air-blowing positions; the forward and backward frame is axially movable along the rotation center axis of the drive mechanism; multiple air-blowing assemblies are all fixed on the forward and backward frame and circumferentially distributed around the rotation center axis of the drive mechanism; the air-blowing assembly includes a power supply... A guide reset component is provided to guide and reset the air blowing assembly along the radial direction of the distribution circle of multiple air blowing assemblies. An air blowing pipe is fixed on the guide reset component. A passive guide is fixed on the air blowing pipe. During the air blowing cleaning process, when the advancing and retracting frame drives the air blowing assembly to move closer to the die casting impeller, the passive guide can extend into the blade groove between adjacent blades on the die casting impeller. The passive guide also makes elastic contact with the blades on both sides. When the drive mechanism drives the die casting impeller to swing back and forth, with the cooperation of the guide reset component, the passive guide indirectly drives the air blowing pipe to move back and forth along the extension direction of the blade groove for air blowing cleaning.

[0009] Preferably, the rotation center axis of the drive mechanism is vertically arranged; when the advancing and retracting frame drives the air blowing assembly to rise vertically, the passive guide extends into the blade slot.

[0010] Preferably, the air blowing pipe includes a vertically arranged straight pipe section and an air nozzle fixed to the top of the straight pipe section; the passive guide is fixed on the straight pipe section.

[0011] Preferably, the passive guide includes a sliding seat sleeved and fixed on the straight pipe section. Two sliders are slidably mounted on the sliding seat along the guiding movement direction of the guide reset member. The two sliders are distributed on both sides of the straight pipe section. A U-shaped spring sheet is fixed between the bottom ends of the two sliders and the spring sheet is fixed on the straight pipe section. Each slider has an abutment member fixed at its upper end that can extend into the blade groove and abut against the blades on both sides.

[0012] Preferably, the abutting member includes a shaft vertically fixed on the slider, a guide roller that rolls and contacts the blades is vertically rotatably mounted on the shaft, the top of the shaft extends out of the guide roller and is fixed with an inner claw, the inner claw extending laterally towards the straight pipe section.

[0013] Preferably, the forward and backward frame includes a circular frame coaxially arranged with the rotation center axis of the drive mechanism; multiple air blowing assemblies are distributed and fixed on the circular frame in a circumferential direction.

[0014] Preferably, the guide reset component includes a seated guide sleeve fixed on the annular frame, a guide rod slidably installed in the seated guide sleeve, and a reset spring sleeved on the guide rod; the guide rod slides radially along the annular frame, and the two ends of the reset spring are respectively fixed on the guide rod and the seated guide sleeve; the air blowing pipe also includes a connector bend fixedly connected to the bottom end of the straight pipe section, and the other end of the connector bend is fixed to the end of the guide rod.

[0015] Preferably, the drive mechanism includes a positioning element fixed to the rotating output end for positioning the die-cast impeller.

[0016] Preferably, the positioning component includes a support block for horizontally supporting and placing the die-cast impeller; the upper end face of the support block is vertically fixed with multiple positioning pins, which can be inserted into multiple fixing holes on the die-cast impeller one by one.

[0017] Preferably, the inner claw includes a vertical section and a side-curved section that extend continuously from bottom to top, and the cross-section of the inner claw is a semi-circular ring structure with the same radius as the guide roller, and the vertical section of the inner claw is arranged coaxially with the corresponding guide roller.

[0018] The above technical solution has the following advantages or beneficial effects: This invention provides an air-blowing cleaning machine for aluminum alloy die-casting parts, which can replace manual labor for standardized and automated air-blowing cleaning of the surface of the aluminum alloy die-casting impeller after precision machining; the drive mechanism can realize the positioning and placement of the die-casting impeller, and the forward and backward frame can drive multiple air-blowing assemblies to extend into or move out of the multiple blade grooves of the positioned die-casting impeller. The drive mechanism drives the die-casting impeller to reciprocate and rotate, so that the air-blowing assemblies extending into the blade grooves can reciprocate along the blade grooves for air-blowing cleaning, which can realize targeted cleaning. Multiple cleaning cycles ensure thorough cleaning of all impeller grooves and blades, leaving no blind spots. The intermittent rotation of the drive mechanism enables complete air-blowing cleaning of the die-cast impeller grooves and blades. In summary, the aluminum alloy die-casting part air-blowing cleaning machine provided by this invention can perform targeted, standardized, and automated cleaning of corresponding aluminum alloy die-casting impellers. The air-blowing cleaning is thorough, leaving no blind spots or residues, ensuring a complete initial air-blowing cleaning. It is suitable for batch processing and production operations, solving the problems of surface friction damage, corrosion, and increased difficulty in subsequent cleaning that may result from inadequate air-blowing cleaning of die-casting impellers in existing technologies. Attached Figure Description

[0019] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0020] Figure 1 This is a 3D view of an air-blowing cleaning machine for aluminum alloy die castings in operation.

[0021] Figure 2 This is a top view of an air-blowing cleaning machine for aluminum alloy die castings.

[0022] Figure 3 This is a three-dimensional structural diagram of the air-blowing assembly.

[0023] Figure 4This is a three-dimensional structural diagram of the passive guide frame.

[0024] Figure 5 This is a 3D structural diagram of an aluminum alloy die-cast impeller.

[0025] In the diagram: 1. Drive mechanism; 11. Base guide column; 12. Servo motor; 13. Positioning component; 131. Support block; 132. Positioning pin; 2. Forward and backward frame; 21. Circular frame; 22. Inner frame; 3. Air blowing assembly; 31. Guide reset component; 311. Guide sleeve with seat; 312. Guide rod; 313. Reset spring; 32. Air blowing pipe; 321. Connector bend; 322. Straight pipe section; 323. Air nozzle; 33. Passive guide frame; 331. Sliding seat; 332. Slider; 333. Spring plate; 334. Shaft; 335. Guide roller; 336. Inner extension claw; 4. Die-cast impeller; 41. Blade; 42. Blade groove; 43. Fixing hole. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 As shown, an air-blowing cleaning machine for aluminum alloy die castings is disclosed. In this invention, the aluminum alloy die castings refer to... Figure 5 The die-cast impeller 4 shown in the diagram requires further finishing after integral die-casting. After finishing, the surface of the die-cast impeller 4 will retain metal shavings, metal powder, and cutting fluid impurities. The air-blowing cleaning machine for aluminum alloy die-castings provided by this invention is specifically designed to replace manual cleaning for these impurities. Figure 5 The specialized air-blowing cleaning equipment shown is used for air-blowing cleaning of the die-cast impeller 4, and is designed to work in conjunction with the die-cast impeller 4 production line for large-scale automated air-blowing cleaning. It should be emphasized that... Figure 5 The image shows a relatively large die-cast impeller 4, which results in significant shortcomings in the cleaning efficiency and thoroughness of existing air-blowing cleaning methods, highlighting the urgent need to improve these methods. Additionally, it should be noted that... Figure 5 The non-blade 41 surface of the die-cast impeller 4 shown is a flat surface, which is easy to clean. This surface can be cleaned immediately after finishing. The air-blowing cleaning machine for aluminum alloy die-castings provided by this invention is mainly used to clean the surface where the blade 41 is located.

[0029] like Figure 5 The die-cast impeller 4 shown has a total of sixteen evenly distributed blades 41, divided into sixteen blade grooves 42. The center of the die-cast impeller 4 is the mounting part, and the mounting part has three circumferentially evenly distributed fixing holes 43. Figure 1 and Figure 2 As shown, the aluminum alloy die-casting air-blowing cleaning machine includes a drive mechanism 1, a forward / reverse frame 2, and four air-blowing assemblies 3. The drive mechanism 1 drives the die-casting impeller 4 to reciprocate and rotate during air blowing, or to rotate intermittently. The four air-blowing assemblies 3 are all fixed on the forward / reverse frame 2 and are evenly distributed circumferentially around the rotation center axis of the drive mechanism 1. The forward / reverse frame 2 is axially movable along the rotation center axis of the drive mechanism 1, used to drive the four air-blowing assemblies 3 to extend into or out of the blade groove 42 simultaneously. When the air-blowing assembly 3 extends into the blade groove 42, the drive mechanism 1 drives the die-casting impeller 4 to reciprocate and rotate, indirectly driving the air-blowing assembly 3 along the blade groove 42. The air blowing cleaning is performed by reciprocating the extension direction of the groove 42. It should be noted that the angle range of the reciprocating oscillation and rotation of the die-casting impeller 4 driven by the drive mechanism 1 is reasonably set so that the air blowing assembly 3 does not leave the extension range of the blade groove 42. When the air blowing assembly 3 moves out of the blade groove 42, the drive mechanism 1 drives the die-casting impeller 4 to rotate intermittently. The four air blowing assemblies 3 can only perform air blowing cleaning on four blade groove 42 positions at a time. Since the die-casting impeller 4 has a total of sixteen blade grooves 42, a single die-casting impeller 4 needs to repeat the air blowing cleaning process four times and needs to perform three intermittent rotations to switch the air blowing cleaning position. The angle of each intermittent rotation is the distribution angle of the blades 41.

[0030] like Figure 1 As shown, in this embodiment, to facilitate stable air-blowing cleaning of the die-casting impeller 4 and reduce splashing of impurities after cleaning, the drive mechanism 1 adopts a vertical rotation drive layout, and the forward and backward frame 2 adopts an upward movement layout to drive the air-blowing assembly 3 to extend towards the blade groove 42. Furthermore, the aluminum alloy die-casting cleaning machine provided by this invention can be placed inside a metal cover that is open at the top and closed at the bottom, so as to collect the cleaned impurities in a concentrated manner.

[0031] like Figure 1As shown, the drive mechanism 1 includes a base guide post 11, a servo motor 12, and a positioning component 13. The base guide post 11 has a cylindrical cavity extending downwards from the top. The servo motor 12 is vertically fixed in the cylindrical cavity by bolts. The positioning component 13 includes a disc-shaped support block 131 fixed to the top of the output shaft of the servo motor 12 by screws. Three circumferentially distributed positioning pins 132 are vertically welded to the upper end face of the support block 131. The positioning pins 132 are cylindrical and their radius is slightly smaller than the radius of the fixing hole 43 of the die-cast impeller 4. Before cleaning, the blade 41 of the die-cast impeller 4 faces downwards. The mounting part is placed on the support block 131, and the three positioning pins 132 are correspondingly inserted into the three fixing holes 43. After the servo motor 12 is started, it can drive the die-cast impeller 4 to rotate through the positioning component 13. In addition, the servo motor 12 driving the die-cast impeller 4 to reciprocate and rotate and to rotate intermittently is existing technology and will not be described in detail here. In batch processing and cleaning, the die-cast impeller 4 is preferably placed automatically by an existing robotic arm, but manual placement is also possible. It is worth noting that, in order to ensure stable air-blowing cleaning and prevent the die-cast impeller 4 from moving freely in the vertical direction, if the robotic arm is used for automatic placement, the gripping end of the robotic arm can simultaneously press against the die-cast impeller 4 during cleaning, and the gripping end retains rotational freedom during pressing to avoid interfering with the rotation drive of the die-cast impeller 4. If manual placement is used, an auxiliary pressing mechanism can be additionally set up. The pressing end of the pressing mechanism can form a pressing rolling contact with the die-cast impeller 4 through multiple balls.

[0032] like Figure 1 and Figure 2 As shown, the forward and backward frame 2 includes a circular frame 21 coaxially arranged with the rotation center axis of the positioning component 13 and an inner frame 22 welded and fixed inside the circular frame 21. The inner frame 22 is vertically slidably fitted onto the base guide post 11 by key engagement. The bottom end of the inner frame 22 can be vertically fixed to a cylinder by bolts. The cylinder is an optional drive device for driving the forward and backward frame 2 to rise and fall, which is not shown in the figure.

[0033] like Figure 1 , Figure 3 and Figure 5As shown, the air blowing assembly 3 includes a guide reset component 31, an air blowing pipe 32, and a passive guide frame 33; the guide reset component 31 includes a seated guide sleeve 311 welded to the upper end of the annular frame 21, a guide rod 312 slidably mounted in the seated guide sleeve 311, and a reset spring 313 sleeved on the guide rod 312; the guide rod 312 slides radially along the annular frame 21, and the two ends of the reset spring 313 are respectively welded to one end of the guide rod 312 near the center of the annular frame 21 and the seated guide sleeve 311; the air blowing pipe 32 includes a connector bend 321, a straight pipe section 322, and an air nozzle 323; The head bend 321 has a right-angle tube structure. The horizontal end of the joint bend 321 is closed and welded to the end of the guide rod 312 near the center of the circular frame 21. The vertical end of the joint bend 321 is connected and welded to the bottom end of the straight pipe section 322. The air nozzle 323 is threadedly connected to the top of the straight pipe section 322. Air holes are evenly opened on the top surface and the surrounding side wall of the air nozzle 323. Gas can be sprayed out radially from the air nozzle 323, so that when the air nozzle 323 is close to the blade groove 42, it can fully cover and clean the inner end face of the blade groove 42 and the surface where the blades 41 on both sides are located, and the cleaning is thorough without dead corners. As an air-blowing cleaning process, it also needs to be used in conjunction with an existing air compressor as an air supply device. In order to optimize the pipeline connection layout, in this embodiment, the annular frame 21 is a hollow annular pipe structure. The annular frame 21 can be provided with a main air inlet and four branch air outlets. The main air inlet is connected to the air compressor through an air pipe, and the four branch air outlets are connected to the connector bends 321 of the four air-blowing assemblies 3 through flexible air pipes. The air compressor first introduces compressed air into the inner cavity of the annular frame 21 and then distributes it into the four air-blowing pipes 32, and finally sprays it out through the air nozzles 323.

[0034] like Figure 3 , Figure 4 and Figure 5As shown, the passive guide frame 33 includes a sliding seat 331 sleeved and welded onto the straight pipe section 322. Two sliders 332 are radially slidably mounted on the sliding seat 331 along the annular frame 21. The two sliders 332 are distributed on both sides of the straight pipe section 322. A U-shaped spring plate 333 is sleeved and welded onto the straight pipe section 322, and the two ends of the spring plate 333 are fixed to the bottom ends of the two sliders 332 by screws. The upper ends of the two sliders 332 are fixed with abutting members that can extend to the blade groove 42 and abut against the blades 41 on both sides. The contacting element includes a shaft 334 vertically welded to the upper end of the slider 332. A guide roller 335 that rolls in contact with the blade 41 is vertically rotatably mounted on the shaft 334. The top end of the shaft 334 extends out of the guide roller 335 and is welded to the top end with an inner claw 336. The inner claw 336 includes a vertical section and a side-bending section that extend continuously from bottom to top, and the side-bending section extends laterally towards the straight tube section 322. In this embodiment, in order to ensure that the guide roller 335 contacts the side wall of the blade 41 and to prevent the guide roller 335 from being pressed against the edge of the blade 41 when it moves upward and thus unable to extend into the blade groove 42, the cross section of the inner claw 336 is a semi-circular ring structure with the same radius as the guide roller 335. The vertical section of the inner claw 336 is coaxially arranged with the corresponding guide roller 335.

[0035] During cleaning, the die-cast impeller 4 with the blade 41 facing down is positioned on the positioning piece 13. Subsequently, the forward and backward frame 2 drives the four air blowing assemblies 3 to rise synchronously. For a single air blowing assembly 3, the two inner claws 336 simultaneously extend into the corresponding blade groove 42. As it continues to rise, the two inner claws 336 contact the impellers on both sides of the blade groove 42, forcing the two sliders 332 to slide closer to each other. The elastic force of the spring plate 333 increases. When the air blowing assembly 3 rises to the highest position, the two guide rollers 335 abut against the blades 41 on both sides, while the air nozzle 323 approaches the opening of the blade groove 42.

[0036] When the air nozzle 323 is in the air blowing state, the drive mechanism 1 drives the die-casting impeller 4 to reciprocate and rotate. During the reciprocating rotation of the die-casting impeller 4, the passive guide 33 maintains rolling contact with the blades 41 on both sides of the blade groove 42 through two guide rollers 335. With the cooperation of the guide reset component 31, the passive guide 33 indirectly drives the air blowing pipe 32 to move back and forth along the extension direction of the blade groove 42. The air nozzle 323 then performs a covering air blowing cleaning on the entire blade groove 42 and the blades 41 on both sides. During the multiple reciprocating swings, multiple cleanings are performed simultaneously to ensure thorough cleaning.

[0037] Subsequently, the servo motor 12 pauses, and the forward and backward frame 2 drives the air blowing assembly 3 to descend and move out of the blade slot 42. Then, the servo motor 12 rotates intermittently, driving the die-casting impeller 4 to rotate and switch the air blowing cleaning area, so that the four air blowing assemblies 3 and another set of four blade slots 42 are in relative positions. Then, the above process is repeated to complete the gradual cleaning of the four sets of blade slots 42 in sequence. After the cleaning is completed, the die-casting impeller 4 can be removed from the positioning part 13.

[0038] This invention provides an air-blowing cleaning machine for aluminum alloy die-cast parts. After the aluminum alloy die-cast impeller 4 has undergone precision machining, it can replace manual labor for standardized and automated air-blowing cleaning of its surface. The drive mechanism 1 enables the positioning of the die-cast impeller 4. The advancing and retracting frame 2 drives multiple air-blowing assemblies 3 to extend into or retract into the multiple blade grooves 42 of the positioned die-cast impeller 4. The drive mechanism 1 drives the die-cast impeller 4 to reciprocate and rotate, allowing the air-blowing assemblies 3 extending into the blade grooves 42 to reciprocate and clean along the grooves. This enables targeted cleaning and multiple cleaning sessions. The air-blowing cleaning machine for aluminum alloy die-casting parts provided by this invention can perform targeted, standardized, and automated cleaning of the corresponding aluminum alloy die-casting impeller 4. The air-blowing cleaning is thorough, leaving no dead corners or residues, ensuring that the initial air-blowing cleaning is in place. It is suitable for batch processing and production operations and solves the problems of surface friction damage, corrosion, and increased difficulty in subsequent cleaning that may be caused by inadequate air-blowing cleaning of the die-casting impeller 4 in the prior art.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An air-blowing cleaning machine for aluminum alloy die-casting parts, used for air-blowing cleaning of aluminum alloy die-casting impellers, characterized in that, include: The drive mechanism is used to drive the die-casting impeller to reciprocate and rotate during air blowing, or to rotate intermittently to switch the air blowing position. The advance and retraction frame is axially movable along the rotation center axis of the drive mechanism; The device includes multiple air-blowing assemblies, all fixed on the advance and retractor frame and circumferentially distributed around the rotation center axis of the drive mechanism. Each air-blowing assembly includes a guide reset component that can guide and reset along the radial direction of the distribution circle of the multiple air-blowing assemblies. An air-blowing pipe is fixed on the guide reset component. A passive guide is fixed on the air-blowing pipe. During the air-blowing cleaning process, when the advance and retractor frame drives the air-blowing assembly to move closer to the die-casting impeller, the passive guide can extend into the blade groove between adjacent blades on the die-casting impeller, and the passive guide elastically contacts the blades on both sides. When the drive mechanism drives the die-casting impeller to swing back and forth, with the cooperation of the guide reset component, the passive guide indirectly drives the air-blowing pipe to move back and forth along the extension direction of the blade groove for air-blowing cleaning.

2. The air-blowing cleaning machine for aluminum alloy die castings according to claim 1, characterized in that: The rotation center axis of the drive mechanism is set vertically; when the advancing and retracting frame drives the air blowing assembly to rise vertically, the passive guide extends into the blade slot.

3. The air-blowing cleaning machine for aluminum alloy die-casting parts according to claim 2, characterized in that: The air blowing pipe includes a vertically arranged straight pipe section and an air nozzle fixed to the top of the straight pipe section; the passive guide is fixed on the straight pipe section.

4. The air-blowing cleaning machine for aluminum alloy die castings according to claim 3, characterized in that: The passive guide includes a sliding seat that is sleeved and fixed on the straight pipe section. Two sliders are slidably installed on the sliding seat along the direction of movement guided by the guide reset member. The two sliders are distributed on both sides of the straight pipe section. A U-shaped spring sheet is fixed between the bottom ends of the two sliders and the spring sheet is fixed on the straight pipe section. Each slider has an abutment that can extend into the blade groove and abut against the blades on both sides.

5. The air-blowing cleaning machine for aluminum alloy die castings according to claim 4, characterized in that: The contact element includes a shaft vertically fixed on the slider, a guide roller that rolls and contacts the blades is vertically rotatably mounted on the shaft, the top of the shaft extends out of the guide roller and is fixed with an inner claw, the inner claw bends and extends laterally toward the straight pipe section.

6. The air-blowing cleaning machine for aluminum alloy die castings according to claim 3, characterized in that: The forward and backward frame includes a circular frame coaxially arranged with the rotation center axis of the drive mechanism; multiple air blowing assemblies are distributed and fixed on the circular frame in a circumferential direction.

7. The air-blowing cleaning machine for aluminum alloy die castings according to claim 6, characterized in that: The guide reset component includes a seated guide sleeve fixed on the circular frame, a guide rod slidably installed in the seated guide sleeve, and a reset spring sleeved on the guide rod; the guide rod slides radially along the circular frame, and the two ends of the reset spring are fixed on the guide rod and the seated guide sleeve, respectively; the air blowing pipe also includes a connector bend fixedly connected to the bottom end of the straight pipe section, and the other end of the connector bend is fixed to the end of the guide rod.

8. The air-blowing cleaning machine for aluminum alloy die castings according to claim 2, characterized in that: The drive mechanism includes a positioning element fixed to the rotating output end for positioning the die-cast impeller.

9. The air-blowing cleaning machine for aluminum alloy die castings according to claim 8, characterized in that: The positioning component includes a support block for horizontally supporting and placing the die-cast impeller; the upper end face of the support block is vertically fixed with multiple positioning pins, which can be inserted into multiple fixing holes on the die-cast impeller one by one.

10. An air-blowing cleaning machine for aluminum alloy die castings according to claim 5, characterized in that: The inner claw includes a vertical section and a side-curved section that extend continuously from bottom to top, and the cross-section of the inner claw is a semi-circular ring structure with the same radius as the guide roller. The vertical section of the inner claw is arranged coaxially with the corresponding guide roller.

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