Drilling device for engine flywheel housing machining

Abstract

The utility model provides drilling device for engine flywheel housing processing relates to engine flywheel housing processing technical field, the utility model discloses a drilling machine, the inner wall of drilling machine is provided with slide frame, the one side of slide frame is provided with drill bit, the one side of drilling machine rotatory mounting has clamp, the bottom one side of drilling machine is provided with water pump, the utility model discloses through setting up filter device contains filter screen, filter base plate, knocking rod, drive mechanism, scraper bar etc. The effective filtration interception of the metal debris in the water after drilling cooling is realized, the debris is avoided with the circulation of cooling water and leads to the blockage of water pump, guarantees the normal operation of cooling system, and drive mechanism drives the intermittent knock of knocking rod and alternately knocks filter screen, and the debris in the inner wall of filter screen is scraped off in combination with the rotation of scraper bar, and then the inclination design of trapezoidal filter screen is matched, can effectively prevent filter screen from blocking, improve the filtration effect, finally improve the drilling processing efficiency and quality of drilling machine.

Description

Technical Field

[0001] This utility model relates to the field of engine flywheel housing processing technology, and in particular to a drilling device for engine flywheel housing processing. Background Technology

[0002] A drilling device is a piece of equipment specifically designed for drilling holes in the flywheel housing, a crucial component of an engine that typically supports and protects the flywheel. Precise drilling operations are required during its production to ensure the accuracy of its connection or installation position with other components.

[0003] When drilling holes in the surface of an engine flywheel housing, the flywheel housing is typically placed on a fixture and fixed. Then, according to the drilling requirements, the self-locking motor inside the drilling machine is activated, causing the fixture to rotate at the corresponding angle and lock in place. Simultaneously, according to the drilling requirements, the drive assembly inside the sliding frame is activated, moving the drill bit to the appropriate height. A servo motor inside the sliding frame then drives the drill bit to rotate, drilling the outer surface of the engine flywheel housing. This drive assembly can be an electric telescopic rod or a servo motor driving a lead screw; no fixed limitation is made. During drilling, to prevent the drilled area from overheating and deforming, a water pump at the bottom of the drilling machine is usually activated to draw cooling water into the cooling pipes and spray it to cool the drilled area. The cooled water falls freely, carrying drilling debris into the inner wall of the drilling machine. This can lead to debris mixed in with the water being drawn into the water pump during water recycling, causing blockages and affecting the cooling system's operation, thus reducing the drilling efficiency and quality. Utility Model Content

[0004] The technical problem this invention aims to solve is: during drilling, to ensure that the drilling area of ​​the engine flywheel housing does not overheat and deform, the water pump at the bottom of the drilling machine is usually activated to pump cooling water into the cooling pipe and spray it out to cool the drilling area. The cooled water falls freely, carrying the debris generated during drilling into the inner wall of the drilling machine. This causes debris mixed in with the water to enter the water pump and cause blockage when the cooled water is recycled, affecting the operation of the cooling system and reducing the drilling efficiency and quality of the drilling machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a drilling device for processing engine flywheel housing, including a drilling machine, a sliding frame provided on the inner wall of the drilling machine, a drill bit provided on one side of the sliding frame, a clamp rotatably mounted on one side of the drilling machine, a water pump provided on one side of the bottom of the drilling machine, a cooling pipe fixedly installed at the outlet of the water pump, wherein one end of the cooling pipe is provided on one side of the sliding frame, and the cooling pipe is a flexible hose, and a filter device provided on the inner wall of the drilling machine, the filter device can filter and intercept metal debris mixed in the used cooling water through a filter screen, so that the used cooling water can be recycled.

[0006] Preferably, the filtering device includes a filter screen, wherein the outer surface of the filter screen is fixedly installed on the inner wall of the drilling machine; a filter base plate, wherein the outer surface and inner wall of the filter base plate are respectively rotatably installed on one side of the inner wall of the filter screen and the inner wall of the drilling machine, and the filter base plate is mesh-like; two second supports, wherein one side of the second supports is fixedly installed on the outer surface of the filter screen; two striking rods, wherein one end of the striking rods is installed through one side of the second support; and a driving mechanism, wherein the driving mechanism is disposed between the two striking rods, the filter base plate, and the filter screen, for driving the base plate and the scraper to rotate on the filter screen, and simultaneously driving the two striking rods to perform rotational striking vibration treatment on the outer surface of the filter screen.

[0007] The aforementioned components achieve the following effects: By incorporating a filtration device, when drilling the surface of the engine flywheel housing, the flywheel housing is typically placed on a fixture for fixation. Then, according to the drilling requirements, the self-locking motor inside the drilling machine is activated, causing the fixture to rotate at a corresponding angle and lock itself in place. Simultaneously, according to the drilling requirements, the drive assembly inside the sliding frame is activated, moving the drill bit to the appropriate height. A servo motor inside the sliding frame then drives the drill bit to rotate, drilling the outer surface of the engine flywheel housing. During drilling, a water pump at the bottom of the drilling machine is activated, drawing cooling water into the cooling pipes and spraying it out to cool the drilling area. The cooled water then flows freely... The falling debris generated during drilling is carried onto the surface of a filter screen installed on the inner wall of the drilling machine. Cooling water passes through the filter screen and falls to the bottom of the inner wall of the drilling machine for continued circulation. The filtered debris is intercepted on the filter screen and filter base plate, making it easy to collect and preventing the water pump from being blocked by the circulating cooling water, thus avoiding affecting the operation of the cooling system. Then, the drive mechanism is activated to drive the striking rod on the second bracket to rotate, intermittently striking the outer surface of the filter screen to vibrate it. This causes the debris intercepted on the filter screen to fall onto the filter base plate, preventing the filter screen from being blocked and improving the filtration effect. Therefore, the drilling efficiency and quality of the drilling machine can be improved.

[0008] Preferably, the filtering device further includes a scraper, wherein one side of the scraper is fixedly mounted on one side of the filter base plate, and the other side abuts against the inner wall of the filter screen.

[0009] The effect achieved by the above components is as follows: by setting up a scraper, when the drive mechanism drives the filter base plate to rotate, the scraper will rotate on the inner wall of the filter screen, scraping off the debris that is attached to the surface and has not rolled off, thus preventing it from accumulating and clogging on the inner wall of the filter screen and affecting the filtration effect.

[0010] Preferably, the driving mechanism includes a first bracket, wherein one side of the first bracket is fixedly mounted on the outer surface of the filter screen; a bevel gear rod, wherein one end of the bevel gear rod is mounted through and on one side of the first bracket; a drive motor, wherein one side of the drive motor is fixedly mounted on one side of the first bracket, and the output end is fixedly mounted on one side of the bevel gear rod by means of a coupling; a bevel gear ring block, wherein one side of the bevel gear ring block is fixedly mounted on one side of the filter base plate, and the outer surface of the ring block meshes with the outer surface of one end of the bevel gear rod; an arc gear, wherein the inner wall of the arc gear is sleeved and fixedly mounted on the outer surface of one end of the bevel gear rod; two circular gears, wherein one side of the circular gear is fixedly mounted on one side of the striking rod, and the outer surface of the circular gear meshes with the outer surface of the arc gear; and two torsion springs, wherein the inner wall of the torsion spring is sleeved on the outer surface of one end of the striking rod, and the two ends are respectively fixedly mounted on one side of the striking rod and one side of the second bracket.

[0011] The effect achieved by the above components is as follows: By setting up a drive mechanism, when the filter screen and filter base plate filter the used cooling water, the drive motor on the first bracket can be started to drive the bevel gear rod to rotate, thereby driving the bevel gear ring block and the filter base plate to rotate within the filter screen and the inner wall of the drilling machine. This drives the scraper rod to rotate and clean the inner wall of the filter screen to prevent clogging. At this time, the torsion spring drives the two striking rods on the two second brackets. Initially, one striking end of one striking rod is in contact with the outer surface of the filter screen, while the other striking end is away from the surface of the filter screen. Thus, when the bevel gear rod rotates, it drives the arc gear to rotate. When the arc gear moves away from the striking end of the filter screen... When the circular gear at one end of the striking rod on the filter screen engages, it drives the circular gear to rotate to a certain angle, causing the striking end of the striking rod to strike the outer surface of the filter screen, thus deforming its torsion spring. At this time, the other circular gear and the arc gear are not engaged. When the arc gear continues to rotate and disengages from the engaged circular gear, the torsion spring will drive the striking rod to return to its original position, causing its striking end to continue to move away from the surface of the filter screen. Similarly, as the arc gear rotates, it will drive the other striking rod to strike and vibrate the surface of the filter screen. This intermittently and alternately strikes and vibrates the outer surface of the filter screen, making it less prone to clogging during the filtration process, improving the filtration effect, and avoiding affecting the operation of the cooling system.

[0012] Preferably, a protective cover is fixedly installed on one side of the first bracket, wherein the drive motor is disposed in the inner wall of the protective cover.

[0013] The effect achieved by the above components is that by setting up a protective cover, the cooling water falling from above the drive motor can be blocked, so that the cooling water filtered down by the filter screen is not easily sprayed directly onto the outer surface of the drive motor, thus reducing the probability of damage to the drive motor.

[0014] Preferably, the longitudinal section of the filter screen is trapezoidal, and the size of the end of the filter screen closest to the filter base plate is smaller than the size of the other end.

[0015] The effect achieved by the above components is that by setting the filter screen in a trapezoidal shape, its inner wall can be inclined. When cooling water and debris fall into the filter screen, the debris will roll along the inclined surface of the inner wall of the filter screen and fall into the filter base plate to collect, thus avoiding clogging of the filter screen and improving the filtration effect.

[0016] Preferably, a protective block is fixedly installed on the outer surface of one end of the striking rod, wherein the protective block is made of rubber.

[0017] The effect achieved by the above-mentioned components is that by setting up protective blocks, the striking rod is less likely to wear on the filter screen when it strikes it, thus improving the service life of both components.

[0018] Preferably, the filtration device further includes two reinforcing rods, wherein the two sides of the reinforcing rods are respectively fixedly installed on one side of the striking rod and one side of the filter base plate.

[0019] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between one end of the striking rod and the filter base plate can be increased, making the connection more secure and stable, and less prone to breakage or damage.

[0020] The beneficial effects of this utility model are:

[0021] By setting up a filtration device that includes a filter screen, filter base plate, striking rod, drive mechanism, scraper, and other components, the system effectively filters and intercepts metal debris in the water after drilling cooling, preventing debris from clogging the water pump due to water circulation and ensuring the normal operation of the cooling system. The drive mechanism drives the striking rod to intermittently strike the filter screen, and the rotating scraper removes debris from the inner wall of the filter screen. Combined with the inclined design of the trapezoidal filter screen, the system effectively prevents filter screen clogging, improves the filtration effect, and ultimately enhances the drilling efficiency and quality of the drilling machine. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the drilling machine part of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the filter screen of this utility model;

[0026] Figure 4 for Figure 3 A three-dimensional schematic diagram of a local structure;

[0027] Figure 5 This is a three-dimensional structural diagram of the filter base plate of this utility model;

[0028] Figure 6 for Figure 5 A magnified three-dimensional structural diagram at point A in the middle.

[0029] Legend: 1. Drilling machine; 2. Filtering device; 3. Sliding frame; 4. Drill bit; 5. Clamp; 6. Water pump; 7. Cooling pipe; 21. Filter screen; 22. Filter base plate; 23. Scraper; 24. Drive mechanism; 241. First support; 242. Bevel gear rod; 243. Drive motor; 244. Bevel gear ring block; 245. Arc gear; 246. Circular gear; 247. Torsion spring; 248. Protective cover; 25. Second support; 26. Striking rod; 27. Protective block; 28. Reinforcing rod. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Figure 1-6The drilling device for machining the engine flywheel housing shown includes a drilling machine 1, a sliding frame 3 on the inner wall of the drilling machine 1, a drill bit 4 on one side of the sliding frame 3, a clamp 5 rotatably mounted on one side of the drilling machine 1, a water pump 6 on one side of the bottom of the drilling machine 1, a cooling pipe 7 fixedly installed at the outlet of the water pump 6, one end of the cooling pipe 7 being located on one side of the sliding frame 3, and the cooling pipe 7 being a flexible hose, and a filter device 2 on the inner wall of the drilling machine 1, which can filter and intercept metal debris mixed in the used cooling water through a filter screen 21, so that the used cooling water can be recycled.

[0033] Figure 1-6The filter device 2 shown includes a filter screen 21, the outer surface of which is fixedly mounted on the inner wall of the drilling machine 1; a filter base plate 22, the outer surface and inner wall of which are rotatably mounted on one side of the inner wall of the filter screen 21 and the inner wall of the drilling machine 1, respectively, and the filter base plate 22 is mesh-like; two second supports 25, one side of which is fixedly mounted on the outer surface of the filter screen 21; two striking rods 26, one end of which is mounted through one side of the second support 25; and a drive mechanism 24, which is disposed between the two striking rods 26 and the filter base plate 22 and the filter screen 21, and is used to drive the base plate and scraper 23 to rotate on the filter screen 21, while simultaneously driving the two striking rods 26 to perform rotational striking vibration treatment on the outer surface of the filter screen 21. By setting up a filter device 2, when drilling the surface of the engine flywheel housing, the engine flywheel housing is usually placed on the fixture 5 for fixation. Then, according to the drilling requirements, the self-locking motor inside the drilling machine 1 is activated to drive the fixture 5 to rotate at the corresponding angle and lock it in place. At the same time, according to the drilling requirements, the drive component inside the sliding frame 3 is activated to move the drill bit 4 to the corresponding height, and the servo motor inside the sliding frame 3 drives the drill bit 4 to rotate, drilling the outer surface of the engine flywheel housing. During drilling, the water pump 6 at the bottom of the drilling machine 1 is activated to draw the internal cooling water into the cooling pipe 7 and spray it out to cool the drilling area. The cooled water will fall freely to remove the debris generated during the drilling process. The cooling water is brought into the filter screen 21 installed on the inner wall of the drilling machine 1. The cooling water passes through the filter screen 21 and falls to the bottom of the inner wall of the drilling machine 1 for continued circulation. The filtered debris is intercepted on the filter screen 21 and the filter base plate 22, making it easy to collect and preventing the water pump 6 from clogging due to the circulating cooling water, thus avoiding affecting the cooling system. Then, the drive mechanism 24 is activated, causing the striking rod 26 to rotate on the second bracket 25, intermittently striking the outer surface of the filter screen 21 to vibrate it. This vibrates the debris intercepted on the filter screen 21 and causes it to fall onto the filter base plate 22, preventing clogging and improving the filtration effect. Therefore, the drilling efficiency and quality of the drilling machine 1 can be improved. The filtering device 2 also includes a scraper 23, one side of which is fixedly installed on one side of the filter base plate 22, and the other side abuts against the inner wall of the filter screen 21. By setting the scraper 23, when the drive mechanism 24 drives the filter base plate 22 to rotate, the scraper 23 will rotate on the inner wall of the filter screen 21, scraping off the debris that is attached to the surface and has not rolled off, thus preventing it from accumulating and clogging on the inner wall of the filter screen 21 and affecting the filtration effect.

[0034] Figure 1-6The drive mechanism 24 shown includes a first bracket 241, one side of which is fixedly mounted on the outer surface of the filter screen 21; a bevel gear rod 242, one end of which is mounted through and on one side of the first bracket 241; a drive motor 243, one side of which is fixedly mounted on one side of the first bracket 241, and its output end is fixedly mounted on one side of the bevel gear rod 242 via a coupling; and a bevel gear ring block 244, one side of which is fixedly mounted on one side of the filter base plate 22. The outer surface meshes with the outer surface of one end of the bevel gear rod 242; the inner wall of the arc gear 245 is sleeved and fixedly installed on the outer surface of one end of the bevel gear rod 242; two circular gears 246, one side of the circular gear 246 is fixedly installed on one side of the striking rod 26, and the outer surface meshes with the outer surface of the arc gear 245; two torsion springs 247, the inner wall of the torsion spring 247 is sleeved on the outer surface of one end of the striking rod 26, and the two ends are respectively fixedly installed on one side of the striking rod 26 and one side of the second bracket 25. By setting up the drive mechanism 24, when the filter screen 21 and filter base plate 22 filter the used cooling water, the drive motor 243 on the first bracket 241 can be activated to drive the bevel gear rod 242 to rotate. This causes the bevel gear ring block 244 and the filter base plate 22 to rotate within the filter screen 21 and the inner wall of the drilling machine 1. This, in turn, causes the scraper rod 23 to rotate to clean and prevent clogging of the inner wall of the filter screen 21. At this time, the torsion spring 247 drives the two striking rods 26 on the two second brackets 25. Initially, one striking end of one striking rod 26 is in contact with the outer surface of the filter screen 21, while the other striking rod 26 is away from the surface of the filter screen 21. Thus, when the bevel gear rod 242 rotates, it drives the arc gear 245 to rotate. When the arc gear 245 and the striking end move away from the filter screen 21... When the circular gear 246 at one end of the striking rod 26 engages, it drives the circular gear 246 to rotate to a certain angle, causing the striking end of the striking rod 26 to strike the outer surface of the filter screen 21, thus deforming the torsion spring 247. At this time, the other circular gear 246 and the arc gear 245 are not engaged. When the arc gear 245 continues to rotate and disengages from the engaged circular gear 246, the torsion spring 247 will drive the striking rod 26 to reset, causing its striking end to continue to move away from the surface of the filter screen 21. Similarly, as the arc gear 245 rotates, it will drive the other striking rod 26 to strike and vibrate the surface of the filter screen 21, thereby achieving intermittent and alternating striking and vibration treatment of the outer surface of the filter screen 21, making it less prone to clogging during the filtration process, improving the filtration effect, and avoiding affecting the operation of the cooling system.

[0035] Figure 1-6A protective cover 248 is fixedly installed on one side of the first bracket 241 shown, and the drive motor 243 is disposed in the inner wall of the protective cover 248. By setting the protective cover 248, the cooling water falling from above the drive motor 243 can be blocked, so that the cooling water filtered by the filter screen 21 is not likely to directly splash onto the outer surface of the drive motor 243, thereby reducing the probability of damage to the drive motor 243.

[0036] Figure 1-6 The filter screen 21 shown has a trapezoidal cross-section, with one end of the filter screen 21 closer to the filter base plate 22 being smaller than the other end. By setting the filter screen 21 in a trapezoidal shape, its inner wall is inclined. When cooling water and debris fall onto the filter screen 21, the debris will roll along the inclined surface of the inner wall of the filter screen 21 and accumulate on the filter base plate 22, preventing the filter screen 21 from becoming clogged and improving the filtration effect. A protective block 27, made of rubber, is fixedly installed on the outer surface of one end of the striking rod 26. By setting the protective block 27, the striking rod 26 is less likely to wear on the filter screen 21 when it strikes it, thus improving the service life of both. The filter device 2 also includes two reinforcing rods 28, with the two sides of the reinforcing rods 28 fixedly installed on one side of the striking rod 26 and one side of the filter base plate 22, respectively. By setting the reinforcing rod 28, the connection area between one end of the striking rod 26 and the filter base plate 22 can be increased, making the connection more secure and stable, and less prone to breakage or damage.

[0037] Working Principle: When drilling the surface of the engine flywheel housing, the flywheel housing is typically placed on fixture 5 and fixed. Then, according to the drilling requirements, the self-locking motor inside the drilling machine 1 is activated, causing fixture 5 to rotate at the corresponding angle and lock itself in place. Simultaneously, according to the drilling requirements, the drive assembly inside the sliding frame 3 is activated, moving the drill bit 4 to the corresponding height. The servo motor inside the sliding frame 3 then drives the drill bit 4 to rotate, drilling the outer surface of the engine flywheel housing. During drilling, the water pump 6 at the bottom of the drilling machine 1 is activated, drawing cooling water into the cooling pipe 7 and spraying it out to cool the drilling area. The cooled water then flows freely... The falling debris generated during drilling is carried into the surface of the filter screen 21 installed on the inner wall of the drilling machine 1. Cooling water passes through the filter screen 21 and falls to the bottom of the inner wall of the drilling machine 1 for continued circulation. The filtered debris is intercepted on the filter screen 21 and the filter base plate 22 for easy collection and to prevent the water pump 6 from becoming clogged due to the circulation of cooling water, thus avoiding affecting the operation of the cooling system. At this time, the drive motor 243 on the first bracket 241 is started to drive the bevel gear rod 242 to rotate, which in turn drives the bevel gear ring block 244 and the filter base plate 22 to rotate in the filter screen 21 and the inner wall of the drilling machine 1, thereby driving the scraper 23 to rotate and clean the filter screen. The inner wall of filter screen 21 is cleaned to prevent clogging. At this time, the torsion spring 247 drives the two striking rods 26 on the two second supports 25. Initially, one striking end of one striking rod 26 is in contact with the outer surface of filter screen 21, while the other striking rod 26 is away from the surface of filter screen 21. When the bevel gear rod 242 rotates, it drives the arc gear 245 to rotate. When the arc gear 245 meshes with the circular gear 246 at the striking end of the striking rod 26 away from the surface of filter screen 21, it will drive the circular gear 246 to rotate to a certain angle, causing the striking end of the striking rod 26 to strike the outer surface of filter screen 21, causing the torsion spring 247 to deform. At this time, the other circular gear 246 and the arc gear 245 are not meshed. When the arc gear 245 continues to rotate and disengages from the meshing circular gear 246, the torsion spring 247 will drive the striking rod 26 to reset, so that its striking end continues to move away from the surface of the filter screen 21. Similarly, as the arc gear 245 rotates, it will drive the other striking rod 26 to strike and vibrate the surface of the filter screen 21, thereby achieving intermittent and alternating striking and vibration treatment of the outer surface of the filter screen 21, making it less prone to clogging during the filtration process, improving the filtration effect, and avoiding affecting the operation of the cooling system. Therefore, the drilling efficiency and quality of the drilling machine 1 can be improved.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A drilling apparatus for machining engine flywheel housing, comprising a drilling machine (1), characterized in that: The drilling machine (1) has a sliding frame (3) on its inner wall. A drill bit (4) is provided on one side of the sliding frame (3). A clamp (5) is rotatably installed on one side of the drilling machine (1). A water pump (6) is provided on one side of the bottom of the drilling machine (1). A cooling pipe (7) is fixedly installed at the outlet of the water pump (6). One end of the cooling pipe (7) is located on one side of the sliding frame (3), and the cooling pipe (7) is a flexible hose. A filter device (2) is provided on the inner wall of the drilling machine (1). The filter device (2) filters and intercepts metal debris mixed in the cooling water after use through a filter screen (21).

2. The drilling device for machining engine flywheel housing according to claim 1, characterized in that: The filter device (2) includes a filter screen (21), wherein the outer surface of the filter screen (21) is fixedly installed on the inner wall of the drilling machine (1); The filter base plate (22) is rotatably mounted on the inner wall of the filter screen (21) and the inner wall of the drilling machine (1), respectively. The filter base plate (22) is mesh. Two second brackets (25), one side of which is fixedly mounted on the outer surface of the filter screen (21); Two striking rods (26), one end of which is mounted through and on one side of the second bracket (25); The drive mechanism (24) is located between the two striking rods (26) and the filter base plate (22) and the filter screen (21). It is used to drive the base plate and the scraper (23) to rotate on the filter screen (21) and at the same time drive the two striking rods (26) to perform rotational striking vibration treatment on the outer surface of the filter screen (21).

3. The drilling apparatus for machining engine flywheel housing according to claim 2, characterized in that: The filter device (2) also includes a scraper (23), one side of which is fixedly installed on one side of the filter base plate (22), and the other side abuts against the inner wall of the filter screen (21).

4. The drilling device for machining engine flywheel housing according to claim 2, characterized in that: The drive mechanism (24) includes a first bracket (241), wherein one side of the first bracket (241) is fixedly mounted on the outer surface of the filter screen (21); A bevel gear rod (242), one end of which is mounted through and on one side of the first bracket (241); A drive motor (243) is fixedly mounted on one side of the first bracket (241) and its output end is fixedly mounted on one side of the bevel gear rod (242) by means of a coupling. A bevel gear ring block (244), wherein one side of the bevel gear ring block (244) is fixedly installed on one side of the filter base plate (22), and its outer surface meshes with the outer surface of one end of the bevel gear rod (242); The inner wall of the arc gear (245) is sleeved and fixedly installed on the outer surface of one end of the bevel gear rod (242); Two circular gears (246), one side of which is fixedly mounted on one side of the striking rod (26), and the outer surface of which meshes with the outer surface of the arc gear (245); Two torsion springs (247) are provided, with the inner wall of the torsion springs (247) sleeved on the outer surface of one end of the striking rod (26), and both ends are fixedly installed on one side of the striking rod (26) and one side of the second bracket (25).

5. The drilling apparatus for machining engine flywheel housing according to claim 4, characterized in that: A protective cover (248) is fixedly installed on one side of the first bracket (241), wherein the drive motor (243) is disposed in the inner wall of the protective cover (248).

6. The drilling apparatus for machining engine flywheel housing according to claim 2, characterized in that: The longitudinal section of the filter screen (21) is trapezoidal, and the size of one end of the filter screen (21) near the filter base plate (22) is smaller than that of the other end.

7. The drilling apparatus for machining engine flywheel housing according to claim 2, characterized in that: A protective block (27) is fixedly installed on the outer surface of one end of the striking rod (26), wherein the protective block (27) is made of rubber.

8. The drilling apparatus for machining engine flywheel housing according to claim 2, characterized in that: The filter device (2) also includes two reinforcing rods (28), wherein the two sides of the reinforcing rods (28) are respectively fixedly installed on one side of the striking rod (26) and one side of the filter base plate (22).

Images