Air blowing device

Abstract

The utility model relates to an air blowing device which comprises a workbench, a pressing mechanism used for pressing a to-be-cleaned product is arranged on the workbench, the to-be-cleaned product comprises a front end face and a rear end face, and each end face is provided with a to-be-cleaned area. A connecting frame perpendicular to the workbench is arranged on the workbench, and a preset height is kept between the connecting frame and the workbench through a pressing mechanism. A through hole for completely exposing the rear end face is formed in the center of the connecting frame, and the pressing mechanism is arranged close to the periphery of the through hole; the workbench is further provided with at least two cleaning mechanisms, and the cleaning mechanisms are arranged at the positions of the front end face and the rear end face capable of spraying cleaning gas towards the product to be cleaned correspondingly. The connecting frame enables the rear end face of the to-be-cleaned product to be exposed through the through hole, meanwhile, the front end face of the to-be-cleaned product is also exposed in the environment, the to-be-cleaned product does not need to be turned over and shifted in the cleaning process of the cleaning mechanism, operation time is saved, and the cleaning efficiency of the to-be-cleaned product is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of airflow cleaning devices, specifically to an air blowing device. Background Technology

[0002] After the cutting process, chips adhere to the surface of the product to be cleaned. If not treated promptly, these chips can cause surface scratches during subsequent transport, processing, and assembly, affecting the quality of the product. Currently, cleaning the surface of products is mainly done manually. Operators use high-pressure air to blow and clean the surface. However, the cleaning area of ​​a single high-pressure air nozzle is limited, and operators need to hold the nozzle and sweep it across the entire workpiece to complete the cleaning. This results in low cleaning efficiency for individual products and may leave some areas uncleaned.

[0003] To address the aforementioned technical problems, the existing Chinese utility model patent "Workpiece Air Blowing Cleaning Device" (patent number ZL202322567111.8, publication number CN220901274U) discloses a device with a cleaning mechanism and a displacement mechanism inside the chamber. The cleaning mechanism's cleaning support is fixed to a support frame. During the cleaning process, the left, right, and top surfaces of the product to be cleaned are first cleaned. The displacement mechanism can rotate the product 200 degrees to empty the cutting fluid and impurities in the chamber. Then, the bottom and front and rear end surfaces of the product are air-blown cleaned through fixed bottom and side nozzles. However, in actual production, not all processed products have multiple smooth surfaces to be cleaned like the aforementioned product. For example, each processed surface of the product may have irregularly shaped areas to be air-blown cleaned. Figure 1 The gearbox housing A' shown has machined surfaces including a front face 1', a peripheral face 2', and a rear face 3'. Multiple holes and recesses are formed on the rear face 3' and peripheral face 2', and each hole and recess has a certain depth. However, when cleaning with the aforementioned device, another problem arises:

[0004] First, the cleaning nozzles located on the top and sides can clean the peripheral surface 2' of the gearbox housing A'. Then, it needs to be rotated 90° by means of a displacement mechanism so that the side nozzles face the front surface 1' and the rear surface 3' of the gearbox housing A' respectively. This displacement process increases the cleaning time, and the setting of the displacement mechanism increases the cost of the device.

[0005] Secondly, the cleaning nozzles on the top and sides of the above-mentioned device are uniformly made of nozzles with a circular cross-section and a large nozzle diameter. Such nozzles can effectively clean the chips on the surface of the gearbox housing A'. However, since the rear end face and peripheral face of the gearbox housing A' also have multiple hole structures and concave structures, the above-mentioned nozzles with large nozzle diameters will not be able to completely clean the chips in the hole structures and concave structures of the gearbox housing A' due to insufficient air pressure, thus affecting the subsequent processing.

[0006] Therefore, further improvements are needed to the internal structure of the air blowing device. Utility Model Content

[0007] The first technical problem to be solved by this utility model is to provide an air blowing device that can quickly clean workpieces at a relatively low cost, especially for situations where both the front and rear ends of the product to be cleaned need to be cleaned.

[0008] The second technical problem to be solved by this utility model is to provide a blowing device with good cleaning effect in view of the above-mentioned existing technology, especially for products with perforated or concave structures.

[0009] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: the air blowing device includes:

[0010] Workbench;

[0011] A clamping mechanism is provided on the workbench for clamping the product to be cleaned, which includes a front end face and a rear end face, and each end face has an area to be cleaned.

[0012] Its characteristic is that it also includes:

[0013] A connecting frame is provided on the workbench. The connecting frame is arranged along the front and back of the product to be cleaned and is perpendicular to the workbench. The clamping mechanism is used to keep it at a preset height in the vertical direction with respect to the plane of the workbench.

[0014] A through-hole is formed in the center of the connecting bracket, which fully exposes the area to be cleaned on the rear end face of the product, while the clamping mechanism is located adjacent to the periphery of the through-hole; and

[0015] The cleaning mechanism is provided on the workbench, and there are at least two of them, which are respectively positioned at the front and rear ends of the workbench that can spray cleaning gas toward the product to be cleaned.

[0016] To improve the cleaning efficiency of the front surface, preferably, the cleaning mechanism includes a first cleaning mechanism for spraying cleaning gas onto the front surface of the product to be cleaned. Correspondingly, the worktable is provided with a first drive mechanism that can drive the first cleaning mechanism to reciprocate along the left and right direction of the product to be cleaned. Since the front surface of the product to be cleaned has a large area, the area that the first cleaning mechanism can clean is small. By setting the first drive mechanism to drive the first cleaning mechanism to reciprocate along the left and right direction of the product to be cleaned, the first cleaning mechanism can blow and sweep the entire front surface of the product to be cleaned, thereby completing the cleaning of the entire front surface in a short time.

[0017] Furthermore, the first driving mechanism includes a power source and a sliding part connected to the power output end of the power source, and also includes a first guide rail arranged in a left-right direction. The sliding part is slidably connected to the first guide rail, and the first cleaning mechanism is disposed on the sliding part. Under the drive of the power source, the sliding part and the first cleaning mechanism reciprocate along the first guide rail. The power source in the first driving mechanism provides power for the movement of the first cleaning mechanism. The first guide rail is parallel to the front end face of the product to be cleaned. The sliding part is disposed on the first guide rail, and under the drive of the power source, the sliding part and the first cleaning mechanism synchronously reciprocate in the left-right direction to blow and clean the front end face of the product to be cleaned.

[0018] To achieve uniform cleaning, preferably, the first cleaning mechanism includes a first mounting portion and at least two first cleaning nozzles. The first mounting portion extends upward from the top of the sliding portion, and each of the first cleaning nozzles is spaced vertically on the first mounting portion. Each of the first cleaning nozzles is used to spray cleaning gas onto the front face of the product to be cleaned. The height of the first mounting portion is the same as that of the product to be cleaned. Multiple first cleaning nozzles are arranged on the side of the first mounting portion facing the product to be cleaned, and each first cleaning nozzle is evenly arranged from top to bottom along the height direction of the first mounting portion. The spray range of all the first cleaning nozzles can cover the entire front face of the product to be cleaned, thereby avoiding the retention of chips.

[0019] To facilitate the fixing of the mounting plate, preferably, the cleaning mechanism further includes a second cleaning mechanism for spraying cleaning gas onto the rear end face of the product to be cleaned. The second cleaning mechanism includes a mounting plate arranged parallel to the rear of the product. A support member for fixing the mounting plate is provided on the worktable. The support member has an "L"-shaped cross-section, including a horizontal portion fixed to the worktable and a vertical portion for fixing the mounting plate. Both the horizontal and vertical portions have mounting holes for inserting the fixing member. Since the product to be cleaned is perpendicular to the worktable under the fixing mechanism, the second cleaning mechanism for cleaning the rear end face of the product also needs to be vertically positioned to ensure cleaning effectiveness. The horizontal portion of the "L"-shaped support member is fixed to the worktable by the fixing member, and the mounting plate is fixed to the vertical portion of the support member by the fixing member. The "L"-shaped support member not only fixes the second cleaning mechanism but also ensures that the second cleaning mechanism sprays cleaning gas onto the rear end face of the product at a vertical angle, guaranteeing the cleaning effect.

[0020] To address the second technical problem, preferably, the mounting plate is provided with at least one second cleaning nozzle and a third cleaning nozzle on the side facing the product to be cleaned. The second cleaning nozzle is used to spray cleaning gas into the perforated or concave structure of the rear end face of the product to be cleaned, and the third cleaning nozzle is used to spray cleaning gas into the flat area of ​​the rear end face of the product to be cleaned. The rear end face of the product to be cleaned includes a relatively flat area, perforated structures, and concave structures. Because the areas with perforated and concave structures have a certain depth, the chips located inside are difficult to clean, thus requiring special cleaning by the second cleaning nozzle. The third cleaning nozzle is suitable for cleaning flat areas.

[0021] To avoid cleaning blind spots, preferably, the product to be cleaned also includes a peripheral surface for connecting the front and rear faces. The worktable has second drive mechanisms on both the left and right sides of the product to be cleaned. Each second drive mechanism includes a cylinder with a piston rod, which forms the power output end. A slide is connected to the piston rod and slidably connected to the second guide rail of the cylinder. The cleaning mechanism also includes a third cleaning mechanism mounted on the slide. The third cleaning mechanism sprays cleaning gas onto the peripheral surface of the product to be cleaned. Driven by the cylinder, the slide and the third cleaning mechanism can reciprocate synchronously along the second guide rail. The peripheral surface of the product to be cleaned includes multiple hole structures, concave mechanisms, and curved surfaces. The cylinder provides power for the movement of the slide and the third cleaning mechanism, enabling them to reciprocate in the left-right direction. This prevents the third cleaning mechanism from always aligning with the same position for cleaning, thus improving the cleaning quality.

[0022] To improve the cleaning effect on the peripheral surface, preferably, each of the third cleaning mechanisms includes a second mounting part, which extends vertically upward from the top of the cylinder. The second mounting part is equipped with a fourth cleaning nozzle for spraying cleaning gas onto the perforated or recessed structures on the peripheral surface of the product to be cleaned. Since the peripheral surface of the product to be cleaned has multiple perforated and recessed structures, this application provides the second mounting part with the same number of fourth cleaning nozzles as the perforated and recessed structures. Each fourth cleaning nozzle corresponds to one perforated or recessed structure, thereby ensuring that the chips within each perforated or recessed structure can be thoroughly cleaned.

[0023] To meet the cleaning needs of different structures on the product to be cleaned, preferably, the first and third cleaning nozzles have a trumpet-shaped end cross-section, and the nozzle outlet cross-sectional area is larger than the nozzle inlet cross-sectional area; the second and fourth cleaning nozzles are generally narrow tubular. The product to be cleaned includes relatively flat areas, perforated structures, and concave structures. Chips on flat areas are easier to clean and fall off during high-pressure gas blowing. Therefore, the purpose of making the end cross-sections of the first and third cleaning nozzles trumpet-shaped is to increase the cleaning efficiency of the cleaning nozzles by increasing the spray range. Compared to cleaning nozzles with equal inlet and outlet areas, this trumpet-shaped cleaning nozzle can save on the number of cleaning nozzles. Furthermore, since areas with perforated or concave structures have a certain depth, chips inside are more difficult to clean. By designing the second and fourth cleaning nozzles as copper tubes with smaller orifice diameters, the spray pressure at the end of the copper tube can be increased, thereby cleaning the chips inside the perforated or concave structures.

[0024] To improve the stability of the product to be cleaned, preferably, the clamping mechanism includes at least two clamping members spaced apart along the end face of the product. Each clamping member includes a head for pressing down on the end face of the product, and the tail of each clamping member is connected to the power output end of a third drive mechanism. The third drive mechanism is fixed on the connecting frame. Under the drive of the third drive mechanism, the heads of each clamping member together press down on the product to be cleaned. During the cleaning process, the cleaning gas sprayed by the cleaning mechanism is high-pressure gas, which will have a certain impact on the product. If the product shakes during this process, it will affect the entire cleaning process. The connecting frame of this application is equipped with a third drive mechanism, whose power output end can drive the clamping members to press the product to be cleaned firmly onto the connecting frame, thereby ensuring its stability throughout the cleaning process.

[0025] Compared with the prior art, the advantages of this utility model are as follows: A connecting frame is provided on the worktable of the air blowing device. The product to be cleaned is fixed on the connecting frame by a clamping mechanism. The connecting frame is provided with through holes so that the rear end face of the product to be cleaned is exposed, and the front end face of the product to be cleaned is also exposed to the environment. The cleaning mechanism can clean the front end face and the rear end face of the product to be cleaned by spraying cleaning gas. The whole process does not require the product to be cleaned to be flipped or repositioned, saving operation time and improving the cleaning efficiency of the product to be cleaned. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a gearbox housing in the prior art;

[0027] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure from another direction;

[0028] Figure 3 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0029] Figure 4 This is a front view of an embodiment of the present utility model;

[0030] Figure 5 This is a top view of an embodiment of the present utility model (the top of the cover is omitted);

[0031] Figure 6 This is a right view of an embodiment of the present utility model;

[0032] Figure 7 for Figure 3 A schematic diagram of the three-dimensional structure from another direction (part of the cover is omitted);

[0033] Figure 8 for Figure 3 A schematic diagram of a three-dimensional structure from another direction.

[0034] In the diagram: 1. Workbench; 2. Clamping mechanism; 21. Clamping component; 211. Head; 212. Tail; 22. Third drive mechanism; 3. Cleaning mechanism; 31. First cleaning mechanism; 311. First mounting part; 312. First cleaning nozzle; 32. Second cleaning mechanism; 321. Mounting plate; 322. Second cleaning nozzle; 323. Third cleaning nozzle; 33. Third cleaning mechanism; 331. Second mounting part; 332. Fourth cleaning nozzle; 4. First drive mechanism; 41. Power source; 42. Sliding part; 43. First guide rail; 5. Support component; 51. Horizontal part; 52. Vertical part; 53. Mounting hole; 6. Second drive mechanism; 61. Cylinder; 62. Piston rod; 63. Slide table; 64. Second guide rail; 7. Connecting frame; 71. Through hole; A. Product to be cleaned; A1. Front end face; A2. Rear end face; A3. Peripheral surface. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figures 1 to 8 The following is a preferred embodiment of the present invention. The air blowing device includes a worktable 1 and a pressing mechanism 2 disposed on the worktable 1. The pressing mechanism 2 is used to press the product A to be cleaned. The product A to be cleaned includes a front end face A1, a rear end face A2, and a peripheral face A3 for connecting the front end face A1 and the rear end face A2. Each end face has a cleaning area. The worktable 1 is also provided with a connecting frame 7. The connecting frame 7 is disposed along the front and rear of the product A to be cleaned and is perpendicular to the worktable 1. With the help of the pressing mechanism 2, it is kept at a preset height in the vertical direction with respect to the plane of the worktable 1. A through hole 71 is opened in the center of the connecting frame 7. The through hole 71 can completely expose the cleaning area of ​​the rear end face A2 of the product A to be cleaned. The pressing mechanism 2 is disposed near the periphery of the through hole 71. The worktable 1 is also provided with three cleaning mechanisms 3, which are respectively disposed at the positions of the front end face A1, the rear end face A2, and the peripheral face A3 that can spray cleaning gas toward the product A to be cleaned.

[0037] Because the front surface A1 of the product A to be cleaned has a large area, while the area that the first cleaning mechanism 31, which sprays cleaning gas onto the front surface A1 of the product A to be cleaned, can clean is relatively small, in order to improve cleaning efficiency, refer to Figure 3 and Figure 4 In this embodiment, the workbench 1 is provided with a first drive mechanism 4 (see reference) that can drive the first cleaning mechanism 31 to reciprocate along the left and right directions of the product A to be cleaned. Figure 3 and Figure 5 The first drive mechanism 4 includes a power source 41 that provides power for the movement of the first cleaning mechanism 31, a sliding part 42 connected to the power output end of the power source 41, and a first guide rail 43 arranged in the left-right direction. The sliding part 42 is slidably connected to the first guide rail 43. The first cleaning mechanism 31 is disposed on the sliding part 42. Under the drive of the power source 41, the sliding part 42 and the first cleaning mechanism 31 reciprocate in the left-right direction synchronously to blow and clean the front end surface A1 of the product A to be cleaned.

[0038] refer to Figure 6Since the product A to be cleaned is relatively large, the first cleaning mechanism 31 in this embodiment includes a first mounting part 311 and eight first cleaning nozzles 312. The first mounting part 311 extends upward from the top of the sliding part 42, and each first cleaning nozzle 312 is arranged at intervals in the vertical direction on the first mounting part 311. The spray range of all the first cleaning nozzles 312 can cover the entire front end face A1 of the product A to be cleaned, thereby avoiding the situation of chips being left behind.

[0039] Since the product A to be cleaned is perpendicular to the worktable 1 under the fixing of the clamping mechanism 2, the second cleaning mechanism 32 used to clean the rear end face A2 of the product A also needs to be set vertically to ensure the cleaning effect. (Refer to...) Figure 7 The cleaning mechanism 3 also includes a second cleaning mechanism 32 for spraying cleaning gas onto the rear end face A2 of the product A to be cleaned. The second cleaning mechanism 32 includes a mounting plate 321 arranged parallel to the rear of the product A to be cleaned. A support member 5 for fixing the mounting plate 321 is provided on the workbench 1. The support member 5 has an "L" shaped cross section and includes a horizontal part 51 fixed on the workbench 1 and a vertical part 52 for fixing the mounting plate 321. Both the horizontal part 51 and the vertical part 52 are provided with mounting holes 53 for inserting the fixing member. The advantages of the "L" shaped support member 5 are: first, the horizontal part 51 is fixed to the workbench 1 by the fixing member, and the mounting plate 321 is fixed to the vertical part 52 of the support member 5 by the fixing member; second, it enables the second cleaning mechanism 32 to spray cleaning gas onto the rear end face A2 of the product A to be cleaned at a vertical angle, resulting in a better cleaning effect.

[0040] Furthermore, in this embodiment, the rear end face A2 of the product A to be cleaned includes a relatively flat area, a hole structure, and a concave structure. Since the area with the hole structure or concave structure has a certain depth, the chips inside are difficult to clean. Therefore, two different nozzles are provided for targeted cleaning. Multiple second cleaning nozzles 322 and third cleaning nozzles 323 are provided on the side of the mounting plate 321 facing the product A to be cleaned. The second cleaning nozzles 322 are used to spray cleaning gas into the hole structure or concave structure of the rear end face A2 of the product A to be cleaned, and the third cleaning nozzles 323 are used to spray cleaning gas into the flat area of ​​the rear end face A2 of the product A to be cleaned.

[0041] refer to Figures 3 to 5The workbench 1 is provided with second drive mechanisms 6 on the left and right sides of the product A to be cleaned. Since the workbench 1 has a relatively small area and a large number of components, the second drive mechanism 6 in this embodiment is preferably a compact slide cylinder. The slide cylinder includes a cylinder 61, a piston rod 62 is provided on the cylinder 61, the piston rod 62 constitutes the power output end, and a slide 63 is connected to the piston rod 62. The slide 63 is slidably connected to the second guide rail 64 of the cylinder 61. The cleaning mechanism 3 also includes a third cleaning mechanism 33 provided on the slide 63. The third cleaning mechanism 33 is used to spray cleaning gas onto the peripheral surface A3 of the product A to be cleaned. Under the drive of the cylinder 61, the slide 63 and the third cleaning mechanism 33 can reciprocate synchronously along the second guide rail 64. The peripheral surface A3 of the product A to be cleaned includes multiple hole structures, concave structures, and curved surfaces. The cylinder 61 provides power for the movement of the slide 63 and the third cleaning mechanism 33, thereby enabling the slide 63 and the third cleaning mechanism 33 to reciprocate in the left-right direction. This prevents the third cleaning mechanism 33 from always aligning with the same position for cleaning, thus improving the cleaning quality. Since four hole structures and concave structures are provided on the peripheral surfaces A3 of both the left and right sides of the product A to be cleaned, this embodiment provides four fourth cleaning nozzles 332 on each second mounting part 331, each aligned with a hole structure or concave structure. This ensures that the chips in each hole structure or concave structure can be cleaned thoroughly.

[0042] In addition, this embodiment provides two types of cleaning nozzles. It should be noted that the first cleaning nozzle 312 and the third cleaning nozzle 323 are of the same type, both having a trumpet-shaped end cross-section and an outlet cross-sectional area larger than the inlet cross-section (see reference). Figure 6 The purpose of this design is twofold: first, to increase the spray range of the cleaning nozzle, thereby improving its cleaning efficiency; second, to save on the number of cleaning nozzles compared to those with equal inlet and outlet areas. The second cleaning nozzle 322 and the fourth cleaning nozzle 332 are of the same type, and this embodiment uses a narrow copper tube (see reference). Figure 6 The main reason is that the area with the hole structure or concave structure has a certain depth, and the chips inside are difficult to clean. By designing the second cleaning nozzle 322 and the fourth cleaning nozzle 332 as copper tubes with smaller apertures, the spray pressure at the end of the copper tube can be increased, thereby cleaning the chips inside the hole structure or concave structure.

[0043] Finally, since the cleaning gas sprayed by the cleaning mechanism 3 is high-pressure gas during the cleaning process, it will have a certain impact on the product A. If the product A shakes at this time, it will affect the entire cleaning process. Therefore, the pressing mechanism 2 in this embodiment includes four pressing members 21 spaced apart along the end face of the product A, with two at the upper end and two at the lower end. Each pressing member 21 includes a head 211 for pressing the end face of the product A, and the tail 212 of each pressing member 21 is connected to the power output end of the third driving mechanism 22. The power output end of the third driving mechanism 22 can drive the pressing member 21 to press the product A on the connecting frame 7, thereby ensuring that it remains stable during the cleaning process.

[0044] Finally, the product A to be cleaned in this embodiment can be of various types, such as a reducer housing, a motor housing, etc. The working process of the air blowing device will be described below using a gearbox housing as an example:

[0045] A. Place the gearbox housing on the connecting frame 7, start the third drive mechanism 22, and under the drive of the third drive mechanism 22, the head 211 of the clamping member 21 presses the gearbox housing onto the connecting frame 7 to keep it fixed. The process of clamping the gearbox housing takes 10 seconds.

[0046] B. The second drive mechanism 6 is activated. The third cleaning mechanism 33 and the slide table 63 can reciprocate synchronously along the second guide rail 64 under the drive of the cylinder 61. The fourth cleaning nozzle 332 can clean the peripheral surface A3 of the gearbox housing by spraying cleaning gas. At the same time, the second cleaning nozzle 322 on the mounting plate 321 sprays cleaning gas into the hole structure and concave structure of the rear end face A2 of the gearbox housing, and the third cleaning nozzle 323 sprays cleaning gas into the flat area of ​​the rear end face A2 of the gearbox housing. The cleaning steps of the rear end face A2 and the peripheral surface A3 are carried out simultaneously. The process takes 10 seconds. After cleaning is completed, the second drive mechanism 6 is turned off.

[0047] C. Start the first drive mechanism 4. The first cleaning mechanism 31 and the sliding part 42 reciprocate along the first guide rail 43 under the drive of the first drive mechanism 4. The first cleaning nozzle 312 can clean the front end face A1 of the gearbox housing by spraying cleaning gas. This process takes 20 seconds. After cleaning is completed, the first drive mechanism 4 is turned off. When the gearbox housing is completely cleaned, the third drive mechanism 22 is turned off and the gearbox housing is taken out. This process takes 10 seconds. That is, the gearbox housing takes a total of 50 seconds from clamping to cleaning and removal.

Claims

1. A blowing device comprising: a worktable (1); a pressing mechanism (2) arranged on the worktable (1) and used for pressing a product (A) to be cleaned, the product (A) to be cleaned comprising a front end surface (A1) and a rear end surface (A2) and having a cleaning area on each end surface; characterized in that further comprising: a connecting frame (7) arranged on the worktable (1), the connecting frame (7) being arranged vertically to the worktable (1) along the front and rear of the product (A) to be cleaned and having a preset height from the plane of the worktable (1) in the up and down direction by means of the pressing mechanism (2); a through hole (71) arranged in the center of the connecting frame (7), the through hole (71) being capable of exposing the cleaning area of the rear end surface (A2) of the product (A) to be cleaned completely, and the pressing mechanism (2) being arranged adjacent to the periphery of the through hole (71); and a cleaning mechanism (3) arranged on the worktable (1), at least two of which are arranged at positions capable of spraying cleaning gas towards the front end surface (A1) and the rear end surface (A2) of the product (A) to be cleaned.

2. The air blowing device according to claim 1, characterized in that: The cleaning mechanism (3) comprises a first cleaning mechanism (31) for spraying cleaning gas towards the front end surface (A1) of the product (A) to be cleaned, and correspondingly, the worktable (1) is provided with a first driving mechanism (4) capable of driving the first cleaning mechanism (31) to reciprocate along the left and right directions of the product (A) to be cleaned.

3. The air blowing device according to claim 2, characterized in that: The first driving mechanism (4) comprises a power source (41) and a sliding part (42) connected to the power output end of the power source (41), further comprises a first guide rail (423) arranged along the left and right directions, the sliding part (42) is slidingly connected to the first guide rail (423), and the first cleaning mechanism (31) is arranged on the sliding part (42), under the driving of the power source (41), the sliding part (42) and the first cleaning mechanism (31) reciprocate along the first guide rail (423).

4. The air blowing device according to claim 3, characterized in that: The first cleaning mechanism (31) comprises a first mounting part (311) and at least two first cleaning nozzles (312), the first mounting part (311) is arranged upwardly from the top of the sliding part (42), each first cleaning nozzle (312) is arranged vertically on the first mounting part (311), and each first cleaning nozzle (312) is used for spraying cleaning gas towards the front end surface (A1) of the product (A) to be cleaned.

5. The air blowing device according to claim 4, characterized in that: The cleaning mechanism (3) further comprises a second cleaning mechanism (32) for spraying cleaning gas to the rear end surface (A2) of the product (A) to be cleaned, the second cleaning mechanism (32) comprises a mounting plate (321) arranged in parallel behind the product (A) to be cleaned, the workbench (1) is provided with a support (5) for fixing the mounting plate (321), the support (5) has an "L" shaped cross section, comprising a horizontal part (51) fixed on the workbench (1) and a vertical part (52) for fixing the mounting plate (321), and the horizontal part (51) and the vertical part (52) are both provided with mounting holes (53) for inserting a fixing member.

6. The air blowing device according to claim 5, characterized in that: The side of the mounting plate (321) facing the product (A) to be cleaned is provided with at least one second cleaning nozzle (322) and a third cleaning nozzle (323), the second cleaning nozzle (322) is used for spraying cleaning gas to the hole structure or the concave structure of the rear end surface (A2) of the product (A) to be cleaned, and the third cleaning nozzle (323) is used for spraying cleaning gas to the flat area of the rear end surface (A2) of the product (A) to be cleaned.

7. The air blowing device according to claim 6, characterized in that: The product (A) to be cleaned further comprises a peripheral surface (A3) for connecting the front end surface (A1) and the rear end surface (A2), and the workbench (1) is provided with a second driving mechanism (6) on the left and right sides of the product (A) to be cleaned, the second driving mechanism (6) comprises a gas cylinder (61), the gas cylinder (61) is provided with a piston rod (62), the piston rod (62) constitutes a power output end, the piston rod (62) is connected with a sliding table (63), and the sliding table (63) is slidingly connected on a second guide rail (64) of the gas cylinder (61), and the cleaning mechanism (3) further comprises a third cleaning mechanism (33) arranged on the sliding table (63), the third cleaning mechanism (33) is used for spraying cleaning gas to the peripheral surface (A3) of the product (A) to be cleaned, and under the driving of the gas cylinder (61), the sliding table (63) and the third cleaning mechanism (33) can synchronously make reciprocating motion along the second guide rail (64).

8. The air blowing device according to claim 7, characterized in that: Each of the third cleaning mechanisms (33) comprises a second mounting part (331), the second mounting part (331) is vertically upwardly arranged on the top of the gas cylinder (61), and the second mounting part (331) is provided with a fourth cleaning nozzle (332) for spraying cleaning gas to the hole structure or the concave structure on the peripheral surface (A3) of the product (A) to be cleaned.

9. The air blowing device according to claim 8, characterized in that: The end cross section of the first cleaning nozzle (312) and the third cleaning nozzle (323) is trumpet-shaped, and the outlet cross-sectional area is larger than the inlet cross-sectional area; the second cleaning nozzle (322) and the fourth cleaning nozzle (332) are tubular in whole.

10. The blowing device according to any one of claims 1 to 9, characterized in that: The pressing mechanism (2) comprises at least two pressing members (21) arranged along the end surface of the product (A) to be cleaned, each of the pressing members (21) comprises a head (211) for pressing the end surface of the product (A) to be cleaned, and the tail (212) of each of the pressing members (21) is connected with the power output end of a third driving mechanism (22), the third driving mechanism (22) is fixed on the connecting frame (7), under the driving of the third driving mechanism (22), the heads (211) of each of the pressing members (21) press the product (A) to be cleaned together.

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