A hole cleaning machine for cleaning the depth of a blind hole

Abstract

This invention relates to the field of hole cleaning equipment technology, and discloses a hole cleaning machine for deep cleaning of blind holes, comprising a main body with several air inlet channels inside. When the hole cleaning begins, long air needles on the upper and lower sides of the workpiece directly deliver high-pressure jets to the depth of the threaded deep hole, blowing impurities outwards. This method can simultaneously clean holes on both the upper and lower surfaces of the workpiece, covering all holes on the workpiece. Compared to conventional cleaning methods, this device can more easily blow out impurities from deep holes, and can also clean all impurities from the upper and lower surfaces and holes of the workpiece in one go, eliminating the possibility of missed areas during manual cleaning and improving cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of hole cleaning equipment technology, specifically a hole cleaning machine for deep cleaning of blind holes. Background Technology

[0002] The blind hole deep cleaning machine is a special processing equipment designed for deep cleaning and removal of burrs, casting slag, sintering residues, and flash from blind holes (holes that are closed at one end and not through) on workpieces.

[0003] When cleaning the base of a vacuum pump, the threaded holes are deep blind holes, and processing debris easily accumulates at the bottom. Conventional cleaning methods typically involve blowing air into each hole with an air gun. However, due to the depth of the threaded holes, the airflow reaching the bottom of the hole tends to reflect and backflow during the air jet cleaning process. The blown debris, as it rises, will collide with the continuously downward-pressurized airflow, and the blown debris will be pushed back to the bottom of the hole by the upper layer of gas. This makes it difficult to blow out the debris from the hole, and it is easy to miss some holes, reducing the cleaning efficiency during the cleaning process. Summary of the Invention

[0004] The purpose of this invention is to provide a hole cleaning machine for deep cleaning of blind holes, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a hole cleaning machine for deep cleaning of blind holes, comprising a main body, the interior of which has several air inlet channels, and further comprising:

[0007] A rotating mechanism is installed on the top of the main body to ensure the cleaning rate during the cleaning process;

[0008] The rotating mechanism includes several long air needles set on the top of the main body, and several short air needles set on the top of the main body;

[0009] The active mechanism is installed at the end of the long air needle to ensure the cleaning intensity during the gas injection process.

[0010] The moving mechanism includes a connecting spring disposed on the outer surface of the rotating component, and a sliding cylinder is fixedly connected to the bottom of the connecting spring.

[0011] Furthermore, the main body includes:

[0012] Support components are installed on top of the main body;

[0013] The restriction component is installed on the top of the main body;

[0014] By controlling the sliding of the limiting component on the surface of the support component, the workpiece to be cleaned can be clamped, ensuring its stability during the hole cleaning process.

[0015] Furthermore, the rotating mechanism also includes:

[0016] A rotating assembly is installed at the end of the long air needle to improve the cleaning rate during the cleaning process.

[0017] Furthermore, the organizations involved in the activities also include:

[0018] The sliding component is installed on the side wall of the sliding cylinder and is used to drive the sliding cylinder up and down when the airflow is ejected, so as to enhance the cleaning intensity during the cleaning process.

[0019] Furthermore, the support assembly includes four positioning shafts fixedly connected to the top of the main body, with a top plate bolted to the end of each positioning shaft away from the main body;

[0020] A cylinder is fixedly connected to the bottom of the top plate, and the output end of the cylinder slides through to the bottom outer wall of the top plate.

[0021] The top of the main body is fixedly connected to two support blocks.

[0022] Furthermore, the limiting component includes pressure plates that are slidably connected to the outer surfaces of the four positioning shafts, with the bottom of the pressure plates fixedly connected to the output end of the cylinder;

[0023] Two pressure blocks are fixedly connected to the bottom of the pressure plate, and several air intake channels are opened inside the pressure plate;

[0024] The workpiece to be cleaned is placed on top of the two support blocks. The pressure plate is moved down by the cylinder, so that the two pressure blocks can contact the top of the workpiece and exert downward pressure on the workpiece, ensuring the stability of the workpiece during the cleaning process.

[0025] Furthermore, several long air needles can be divided into two groups, one above the other. The first group of long air needles is threaded to the bottom of the pressure plate, and the long air needles are connected to the interior of the second air intake channel.

[0026] The second set of long air needles is threadedly connected to the top of the main body, and the long air needles are connected to the interior of the air intake channel one.

[0027] Several short air needles can be divided into two groups, one above the other. The first group of short air needles is threaded to the bottom of the pressure plate, and the short air needles are connected to the inside of the second air intake channel.

[0028] The second set of short air needles is threadedly connected to the top of the main body, and the short air needles are connected to the interior of the air intake channel one.

[0029] The long air needle can be inserted into the deep threaded hole inside the workpiece to clean the impurities inside the hole, while the short air needle can clean the impurities on the surface of the workpiece.

[0030] Furthermore, the rotating assembly includes a rotating cylinder rotatably connected to the end of the long air needle, the interior of which is conical;

[0031] Several inclined plates are fixedly connected to the inner wall of the rotating cylinder, and bending grooves are opened inside the rotating cylinder;

[0032] Several bending grooves are arranged in a circular array with the center of the rotating cylinder as the center;

[0033] The interior of the rotating cylinder is connected to the exterior through several bending grooves;

[0034] When the high-pressure airflow is ejected through the long air needle, after the long air needle flows through the inside of the rotating cylinder, the gas will drive the rotating cylinder under the guidance of multiple inclined plates, which will enable the rotating cylinder to rotate at the end of the long air needle.

[0035] Furthermore, an auxiliary groove is provided on the outer surface of the rotating cylinder;

[0036] The top of the connecting spring is fixedly connected to the top inner wall of the auxiliary groove.

[0037] Furthermore, the sliding assembly includes an inner cylinder fixedly connected to the inner wall of the bottom of the sliding cylinder, and the inner cylinder is rotatably connected to the outer surface of the auxiliary groove;

[0038] The top of the sliding cylinder is angled.

[0039] In the initial state, the inclined surface at the top of the sliding cylinder is set at the outlet of multiple bending grooves. When some gas is ejected through the bending grooves, the ejected gas will impact the inclined surface at the top of the sliding cylinder, forcing the sliding cylinder to slide downwards and stretch.

[0040] The present invention has the following beneficial effects:

[0041] 1. In this invention, when the hole cleaning begins, the long air needles on the upper and lower sides of the workpiece will directly deliver high-pressure jets to the depth of the threaded deep hole, blowing out the impurities in the hole. This method can clean the holes on the upper and lower surfaces of the workpiece at the same time, and cover all the holes on the workpiece. Compared with conventional cleaning methods, this device can more easily blow out the impurities in the deep hole, and can also blow out all the impurities on the upper and lower surfaces of the workpiece and in the holes at one time, eliminating the situation of missed blowing by manual cleaning and improving the cleaning efficiency in the cleaning process.

[0042] 2. In this invention, a portion of the gas passes through the inlet of multiple bending grooves inside the rotating cylinder. Guided by the bending channels of the bending grooves, it is ejected outward as the rotating cylinder rotates. The ejected high-pressure gas is converted into a spiral airflow with strong tangential and axial velocities, which creates a disturbed airflow on the inner wall of the hole. This enhances the discharge speed of waste slag during the cleaning process and flushes the thread grooves inside the hole, reducing the situation where larger particles of impurities get stuck between the thread grooves and the long air needle, thus improving the cleaning efficiency.

[0043] 3. In this invention, after the sliding cylinder is reset, the inclined surface at the top of the sliding cylinder changes the airflow ejected through the bending groove. Under the guidance of the inclined surface at the top of the sliding cylinder, the ejected airflow gradually changes its spray angle as the sliding cylinder is reset, causing the airflow ejected through the bending groove to spray obliquely upward. This prevents impurities from rotating tightly against the hole wall due to the rotation of the cylinder, thereby reducing the continuous wear and impact of impurities on the thread tips and preventing thread damage. At the same time, it can also prevent small particulate impurities from accumulating in the grooves of the thread teeth inside the hole, ensuring the integrity of the cleaning process of the inner wall of the hole and further enhancing the cleaning efficiency of the hole.

[0044] 4. In this invention, when the connecting spring drives the sliding cylinder to reset, so that the top area of ​​the sliding cylinder covers the outlet of multiple bending grooves, the gas ejected from inside the long air needle can be ejected outward through the bottom outlet of the rotating cylinder. This ensures the injection intensity of high-pressure gas in the hole, reduces the decrease in the injection force and impact force of the gas ejected outward through the rotating cylinder after some gas is ejected through multiple bending grooves, thus weakening the ability to clean the slag at the bottom of the deep hole. This enhances the cleaning ability of the compacted waste slag at the bottom of the hole during injection cleaning, further enhancing the hole cleaning efficiency.

[0045] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0049] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0050] Figure 4 This is a partial cross-sectional schematic diagram of the support component of the present invention;

[0051] Figure 5 This is a schematic diagram of the limiting component structure from below in this invention;

[0052] Figure 6 This is a partial cross-sectional structural diagram of the rotating component of the present invention;

[0053] Figure 7 This is a partial cross-sectional structural diagram of the rotating component of the present invention;

[0054] Figure 8 This is a schematic cross-sectional view of half of the rotating mechanism of the present invention.

[0055] The attached diagram lists the components represented by each number as follows:

[0056] In the diagram: 1. Main body; 101. Intake channel one; 11. Support assembly; 111. Positioning shaft; 112. Top plate; 113. Cylinder; 114. Support block; 12. Restriction assembly; 121. Pressure plate; 122. Pressure block; 123. Intake channel two; 2. Rotating mechanism; 201. Long air needle; 202. Short air needle; 21. Rotating assembly; 211. Rotating cylinder; 212. Inclined plate; 213. Bending groove; 3. Movable mechanism; 301. Auxiliary groove; 31. Sliding assembly; 311. Connecting spring; 312. Sliding cylinder; 313. Inner cylinder. Detailed Implementation

[0057] 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.

[0058] Please see Figures 1-8 As shown, the present invention is a hole cleaning machine for deep cleaning of blind holes, including a main body 1, the interior of which has a plurality of air inlet channels 101, and further including:

[0059] Rotating mechanism 2 is installed on the top of the main body 1 to ensure the cleaning rate of the hole cleaning process;

[0060] The rotating mechanism 2 includes several long air needles 201 disposed on the top of the main body 1, and several short air needles 202 disposed on the top of the main body 1.

[0061] The movable mechanism 3 is installed at the end of the long air needle 201 to ensure the cleaning intensity during the process of spraying gas to clean the hole;

[0062] The movable mechanism 3 includes a connecting spring 311 disposed on the outer surface of the rotating component 21, and a sliding cylinder 312 is fixedly connected to the bottom of the connecting spring 311.

[0063] Entity 1 includes:

[0064] Support component 11 is installed on the top of the main body 1;

[0065] Restriction component 12 is installed on the top of the main body 1;

[0066] By controlling the sliding of the limiting component 12 on the surface of the support component 11, the workpiece to be cleaned can be clamped, ensuring its stability during the hole cleaning process.

[0067] The rotating mechanism 2 also includes:

[0068] Rotating component 21 is installed at the end of long air needle 201 to improve the cleaning rate during the cleaning process.

[0069] Organization 3 also includes:

[0070] The sliding component 31 is installed on the side wall of the sliding cylinder 312 and is used to drive the sliding cylinder to slide up and down when the airflow is ejected, so as to enhance the cleaning intensity during the cleaning process.

[0071] The support assembly 11 includes four positioning shafts 111 fixedly connected to the top of the main body 1, and a top plate 112 is bolted to one end of the four positioning shafts 111 away from the main body 1.

[0072] A cylinder 113 is fixedly connected to the bottom of the top plate 112, and the output end of the cylinder 113 slides through to the bottom outer wall of the top plate 112.

[0073] Two support blocks 114 are fixedly connected to the top of the main body 1;

[0074] First, connect the inlet ends of intake channel 101 and intake channel 2 123 to the solenoid valves that connect to the external high-pressure gas source. By controlling the opening and closing of the external solenoid valves, high-pressure gas can be delivered to the interior of intake channel 101 and intake channel 2 123.

[0075] The limiting component 12 includes a pressure plate 121 that is slidably connected to the outer surface of the four positioning shafts 111, and the bottom of the pressure plate 121 is fixedly connected to the output end of the cylinder 113.

[0076] Two pressure blocks 122 are fixedly connected to the bottom of the pressure plate 121, and several air intake channels 123 are opened inside the pressure plate 121.

[0077] The workpiece to be cleaned is placed on top of two support blocks 114. The pressure plate 121 is moved down by the cylinder 113, so that the two pressure blocks 122 can contact the top of the workpiece and exert downward pressure on the workpiece to ensure the stability of the workpiece during the cleaning process.

[0078] Long air needles 201 and short air needles 202 are installed on the top of the main body 1 and the bottom of the pressure plate 121 as needed. Then, the workpiece to be cleaned is placed on the top of the two support blocks 114, and multiple long air needles 201 on the top of the main body 1 are inserted into the deep holes at the bottom of the workpiece.

[0079] Several long air needles 201 can be divided into two groups, one above the other. The first group of long air needles 201 is threaded to the bottom of the pressure plate 121. The long air needles 201 are connected to the interior of the second air intake channel 123.

[0080] The second set of long air needles 201 are threadedly connected to the top of the main body 1, and the long air needles 201 are connected to the interior of the air intake channel 101.

[0081] Several short air needles 202 can be divided into two groups, one above the other. The first group of short air needles 202 is threaded to the bottom of the pressure plate 121. The short air needles 202 are connected to the interior of the second air intake channel 123.

[0082] The second set of short air needles 202 are threadedly connected to the top of the main body 1, and the short air needles 202 are connected to the interior of the air intake channel 101.

[0083] Among them, the long air needle 201 can be inserted into the deep threaded hole in the workpiece and clean the impurities in the hole, while the short air needle 202 can clean the impurities on the surface of the workpiece.

[0084] When multiple long air needles 201 on the top of the main body 1 and the bottom of the pressure plate 121 are inserted into the deep holes on the upper and lower sides of the workpiece, there is a certain gap between the outer surface of the long air needle 201 and the inner wall of the deep hole. When the hole cleaning begins, the long air needles 201 on the upper and lower sides of the workpiece will directly deliver the high-pressure jet to the depth of the threaded deep hole and blow the impurities in the hole outward.

[0085] The rotating assembly 21 includes a rotating cylinder 211 rotatably connected to the end of the long air needle 201, and the interior of the rotating cylinder 211 is conical.

[0086] Several inclined plates 212 are fixedly connected to the inner wall of the rotating cylinder 211, and a bending groove 213 is opened inside the rotating cylinder 211;

[0087] Several bending grooves 213 are arranged in a circular array with the center of the rotating cylinder 211 as the center;

[0088] The interior of the rotating cylinder 211 is connected to the exterior through several bending grooves 213;

[0089] When the high-pressure airflow is ejected through the long air needle 201, after the long air needle 201 flows through the inside of the rotating cylinder 211, the gas will drive the rotating cylinder 211 under the guidance of multiple inclined plates 212, so that the rotating cylinder 211 can rotate at the end of the long air needle 201.

[0090] An auxiliary groove 301 is provided on the outer surface of the rotating cylinder 211;

[0091] The top of the connecting spring 311 is fixedly connected to the top inner wall of the auxiliary groove 301.

[0092] The sliding assembly 31 includes an inner cylinder 313 fixedly connected to the inner wall of the bottom of the sliding cylinder 312, and the inner cylinder 313 is rotatably connected to the outer surface of the auxiliary groove 301.

[0093] The top of the sliding cylinder 312 is inclined;

[0094] In the initial state, the inclined surface at the top of the sliding cylinder 312 is set at the outlet of multiple bending grooves 213. When some gas is ejected through the bending grooves 213, the ejected gas will impact the inclined surface at the top of the sliding cylinder 312, forcing the sliding cylinder 312 to slide downward and stretch 311.

[0095] In use, firstly, connect the inlet ends of air inlet channel 101 and air inlet channel 2 123 to the solenoid valves connected to the external high-pressure air source. By controlling the opening and closing of the external solenoid valves, high-pressure gas can be delivered to the interior of air inlet channel 101 and air inlet channel 2 123. Then, install long air needles 201 and short air needles 202 as needed on the top of the main body 1 and the bottom of the pressure plate 121. Then, place the workpiece to be cleaned on the top of the two support blocks 114, and insert the multiple long air needles 201 on the top of the main body 1 into the deep holes at the bottom of the workpiece. Then, start the cylinder 113. When the cylinder 113 is working, it will push the pressure plate 121 to slide downward. During the downward movement of the pressure plate 121, it will press down on the surface of the workpiece through the pressure block 122 to ensure the stability of the workpiece position. At the same time, the long air needles 201 at the bottom of the pressure plate 121 will also be inserted into the through holes on the workpiece. Then, by opening the external solenoid valve, the high-pressure gas is blown onto the surface and inner holes of the workpiece through the long air needles 201 and short air needles 202, thus completing the automatic cleaning of the workpiece.

[0096] When multiple long air needles 201 on the top of the main body 1 and the bottom of the pressure plate 121 are inserted into the deep holes on the upper and lower sides of the workpiece, there is a certain gap between the outer surface of the long air needles 201 and the inner wall of the deep hole. When the cleaning begins, the long air needles 201 on the upper and lower sides of the workpiece will deliver high-pressure jets directly to the depth of the threaded deep hole, blowing the impurities in the hole outward. This method can clean the holes on the upper and lower surfaces of the workpiece at the same time and cover all the holes on the workpiece. Compared with conventional cleaning methods, this device can more easily blow out the impurities in the deep hole, and can also clean all the impurities on the upper and lower surfaces and holes of the workpiece at one time, eliminating the situation of missed blowing by manual cleaning and improving the cleaning efficiency in the cleaning process.

[0097] When the high-pressure gas inside the long air needle 201 is ejected through the rotating cylinder 211, a portion of the gas impacts the inclined surfaces of multiple inclined plates 212 inside the rotating cylinder 211, driving the rotating cylinder 211 to rotate. At the same time, the gas is ejected outward from the bottom of the rotating cylinder. Meanwhile, some gas passes through the inlet of multiple bending grooves 213 inside the rotating cylinder 211, and is guided by the curved channels of the bending grooves 213. As the rotating cylinder 211 rotates, the ejected high-pressure gas is ejected outward and converted into a spiral airflow with strong tangential and axial velocities. This creates a turbulent airflow on the inner wall of the hole, which can enhance the discharge speed of waste residue during the cleaning process and flush the thread grooves inside the hole. This reduces the situation where larger particles of impurities get stuck between the thread grooves and the long air needle 201, thus improving the cleaning efficiency.

[0098] When high-pressure gas is ejected at high speed through multiple bending grooves 213, the ejected gas impacts the inclined area at the top of the sliding cylinder 312, causing the sliding cylinder 312 to slide downwards under the impact of the airflow. As the sliding cylinder 312 slides down, it stretches the connecting spring 311, allowing it to accumulate elastic potential energy. Simultaneously, when the inclined surface at the top of the sliding cylinder 312 slides and passes the outlet of the multiple bending grooves 213, the sliding cylinder 312 will reset under the rebound potential energy of the connecting spring 311. After resetting, the inclined surface at the top of the sliding cylinder 312 will change the direction of the bending grooves 213. The ejected airflow, guided by the inclined surface at the top of the sliding cylinder 312, gradually changes its spray angle as the sliding cylinder 312 resets, causing the airflow ejected through the bending groove 213 to spray obliquely upwards. This prevents impurities from rotating tightly against the hole wall due to the rotation of the cylinder, thereby reducing the continuous wear and impact of impurities on the thread tips and preventing thread damage. At the same time, it also prevents smaller particles of impurities from accumulating in the grooves of the thread teeth inside the hole, ensuring the integrity of the hole wall cleaning process and further enhancing the slag removal efficiency inside the hole.

[0099] When a portion of the high-pressure gas is ejected outward through multiple bending grooves 213 and impacts the inclined surface at the top of the sliding cylinder 312, causing it to slide downward, the inner cylinder 313 can shorten the distance the high-pressure gas flow travels from the rotating cylinder to the depth of the hole. This allows the high-pressure gas flow to be ejected closer to the inner wall of the hole's depth when it passes through the long air needle 201 and the end of the rotating cylinder 211. This ensures the cleaning intensity of the gas jet deep into the hole when a portion of the gas is ejected outward through multiple bending grooves 213. Simultaneously, when the connecting spring 311 drives the sliding cylinder 312 to reset, the sliding cylinder 31... When the top area covers the outlet of multiple bending grooves 213, the gas ejected from inside the long air needle 201 can be ejected outward through the bottom outlet of the rotating cylinder 211. This ensures the injection intensity of high-pressure gas inside the hole and reduces the decrease in the injection force and impact force of the gas ejected outward through the rotating cylinder 211 after some gas is ejected through multiple bending grooves 213. This reduces the ability to clean the slag at the bottom of the deep hole, enhances the cleaning ability of the compacted waste slag at the bottom of the hole during jet cleaning, and further enhances the hole cleaning efficiency.

[0100] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hole cleaning machine for deep cleaning of blind holes, comprising a main body (1), wherein the main body (1) has a plurality of air inlet channels (101) inside, characterized in that, Also includes: Rotating mechanism (2), which is installed on the top of the main body (1) to ensure the cleaning rate of the cleaning process; The rotating mechanism (2) includes a number of long air needles (201) disposed on the top of the main body (1), and a number of short air needles (202) disposed on the top of the main body (1). The active mechanism (3) is installed at the end of the long air needle (201) to ensure the cleaning intensity during the process of spraying gas to clean the hole; The active mechanism (3) includes a connecting spring (311) disposed on the outer surface of the rotating assembly (21), and a sliding cylinder (312) is fixedly connected to the bottom of the connecting spring (311).

2. The hole cleaning machine for deep cleaning of blind holes according to claim 1, characterized in that: The main body (1) includes: A support component (11) is mounted on top of the main body (1); A limiting component (12) is mounted on the top of the main body (1); In this process, by controlling the sliding of the limiting component (12) on the surface of the support component (11), the workpiece to be cleaned can be clamped to ensure its stability during the cleaning process.

3. A hole cleaning machine for deep cleaning of blind holes according to claim 2, characterized in that: The rotating mechanism (2) further includes: A rotating component (21) is installed at the end of a long air needle (201) to improve the cleaning rate during the cleaning process.

4. A hole cleaning machine for deep cleaning of blind holes according to claim 3, characterized in that: The activity mechanism (3) also includes: The sliding component (31) is installed on the side wall of the sliding cylinder (312) and is used to drive the sliding cylinder to slide up and down when the airflow is ejected, so as to enhance the cleaning intensity during the cleaning process.

5. A hole cleaning machine for deep cleaning of blind holes according to claim 2, characterized in that: The support assembly (11) includes four positioning shafts (111) fixedly connected to the top of the main body (1), and a top plate (112) is bolted to one end of the four positioning shafts (111) away from the main body (1). A cylinder (113) is fixedly connected to the bottom of the top plate (112), and the output end of the cylinder (113) slides through to the bottom outer wall of the top plate (112). The top of the main body (1) is fixedly connected to two support blocks (114).

6. A hole cleaning machine for deep cleaning of blind holes according to claim 5, characterized in that: The limiting component (12) includes a pressure plate (121) slidably connected to the outer surface of four positioning shafts (111), the bottom of the pressure plate (121) being fixedly connected to the output end of the cylinder (113); Two pressure blocks (122) are fixedly connected to the bottom of the pressure plate (121), and several air intake channels (123) are opened inside the pressure plate (121).

7. A hole cleaning machine for deep cleaning of blind holes according to claim 1, characterized in that: The long air needles (201) can be divided into two groups, one above the other. The first group of long air needles (201) is threaded to the bottom of the pressure plate (121). The long air needles (201) are connected to the interior of the second air intake channel (123). The second set of long air needles (201) are threadedly connected to the top of the main body (1), and the long air needles (201) are connected to the interior of the air inlet channel (101); Several short air needles (202) can be divided into two groups, one above the other. The first group of short air needles (202) is threaded to the bottom of the pressure plate (121). The short air needles (202) are connected to the interior of the second air intake channel (123). The second group of short air needles (202) are threadedly connected to the top of the main body (1), and the short air needles (202) are connected to the interior of the air intake channel (101).

8. A hole cleaning machine for deep cleaning of blind holes according to claim 3, characterized in that: The rotating assembly (21) includes a rotating cylinder (211) rotatably connected to the end of the long air needle (201), and the interior of the rotating cylinder (211) is conical; The inner wall of the rotating cylinder (211) is fixedly connected with several inclined plates (212), and the interior of the rotating cylinder (211) is provided with bending grooves (213). Several bending grooves (213) are arranged in a circular array with the center of the rotating cylinder (211) as the center; The interior of the rotating cylinder (211) is connected to the outside through several bending grooves (213).

9. A hole cleaning machine for deep cleaning of blind holes according to claim 8, characterized in that: An auxiliary groove (301) is provided on the outer surface of the rotating cylinder (211); The top of the connecting spring (311) is fixedly connected to the top inner wall of the auxiliary groove (301).

10. A hole cleaning machine for deep cleaning of blind holes according to claim 4, characterized in that: The sliding assembly (31) includes an inner cylinder (313) fixedly connected to the inner wall of the bottom of the sliding cylinder (312), and the inner cylinder (313) is rotatably connected to the outer surface of the auxiliary groove (301); The top of the sliding cylinder (312) is inclined.

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