Numerical control drilling machine suitable for multi-hole-site machining of air conditioner compressor air cylinder

Abstract

The numerical control drilling machine comprises a drilling machine, a filtering circulation mechanism is arranged at the bottom of the drilling machine, and a positioning mechanism is arranged on one side of the drilling machine; a filtering circulating mechanism is arranged at the bottom of the drilling machine, cutting fluid and metal chippings generated in the machining process can be guided into a collecting box in a unified mode to be treated in a centralized mode, a first motor drives a first lead screw to rotate, a support generates stable reciprocating motion, the support drives a connecting plate to move synchronously in the moving process, and the machining efficiency is improved. Therefore, the filter cotton is always attached to the inner wall of the collecting box to form a dynamic scraping and sweeping structure, metal scraps attached to the surface of the inner wall can be effectively and intensively pushed into the filter box, and blockage or pollution caused by long-term accumulation of the scraps in the collecting box is avoided.

Description

Technical Field

[0001] This application relates to the field of manufacturing technology, and more specifically, to a CNC drilling machine suitable for machining multi-hole positions of air conditioning compressor cylinders. Background Technology

[0002] As a key component of the refrigeration system, the air conditioning compressor's cylinder usually requires multi-hole drilling during the manufacturing process to meet the requirements of assembly connection, gas passage and functional structure. Due to the compact structure of the cylinder body and the dense distribution of holes, the requirements for drilling position accuracy and machining consistency are high. On existing production lines, CNC drilling machines are mostly used for batch processing to improve processing efficiency and hole machining accuracy.

[0003] In actual implementation, some problems still exist: In the existing CNC drilling process, a large amount of cutting fluid and metal chips are inevitably generated during drilling. The above mixture is usually treated by simple collection tanks or fixed filter structures. The filter structure is relatively simple, and the filter cotton or filter screen is mostly statically set. It is easy to get clogged due to the accumulation of chips during long-term processing, resulting in poor cutting fluid return and even overflow. This not only affects the cleanliness of the processing environment, but may also have an adverse effect on the normal operation of the drilling machine, increasing the frequency of manual cleaning and equipment maintenance.

[0004] Furthermore, some existing technologies suffer from low cutting fluid recycling efficiency, incomplete filtration, or a lack of active cleaning mechanisms, resulting in the presence of fine metal particles in the cutting fluid. Long-term use of these particles can easily cause wear on drilling tools and internal moving parts of the equipment, affecting machining accuracy and equipment lifespan. Additionally, existing filtration structures often rely on manual maintenance during filter cleaning, which is insufficient to meet the production demands of continuous, multi-station machining. On the other hand, in the process of machining multiple holes in the air conditioning compressor cylinder, the positioning accuracy between the drilling machine and the workpiece has a direct impact on the machining quality. The positioning structure adjustment method of some existing CNC drilling machines is relatively crude, making it difficult to balance overall movement and local fine adjustment. When machining multiple holes continuously, the consistency of hole positions is easily reduced due to clamping errors or position deviations, which in turn affects the product assembly accuracy and pass rate. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, the present invention provides a CNC drilling machine suitable for machining multi-hole positions of air conditioning compressor cylinders, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the main technical solution adopted by the present invention is as follows: A CNC drilling machine suitable for machining multi-hole positions of air conditioning compressor cylinders includes a drilling machine, a filtration and circulation mechanism at the bottom of the drilling machine, and a positioning mechanism on one side of the drilling machine; the filtration and circulation mechanism includes a collection box for collecting cutting fluid and debris, and a filter component disposed in the collection box and capable of reciprocating along its inner wall, the filter component being connected to a power component that drives its reciprocating motion; The positioning mechanism includes a gantry frame and an adjusting plate. The adjusting plate is connected to the front of the gantry frame, and the drilling machine is fixedly connected to the outside of the adjusting plate. The bottom of the drilling machine is provided with a connecting frame, and the top of the connecting frame is fixedly connected to the collection box.

[0007] Preferably, the power assembly includes a first motor fixedly connected to the outside of the collection box, a first lead screw fixedly connected to the output end of the first motor, the two ends of the first lead screw being rotatably connected to the opposite inner walls of the collection box, and a baffle fixedly connected to the top of the collection box.

[0008] Preferably, a support is threadedly connected to the middle of the first lead screw, and a connecting plate is fixedly connected to the outer side of the support. The end of the connecting plate away from the support is slidably connected to the inner side of the collection box.

[0009] Preferably, the filter component includes the connecting plate, a spring rod fixedly connected to its bottom end, a fixing plate fixedly connected to the lower end of the spring rod, and filter cotton snapped onto the bottom end of the fixing plate; the bottom end of the filter cotton is attached to the inner wall of the collection box.

[0010] Preferably, a trigger rod is fixedly connected to the top of the connecting plate, a limiting plate is fixedly connected to the outer side of the collection box, and a compressed airbag is fixedly connected to the inner side of the limiting plate.

[0011] Preferably, the compressed air bag is provided with an air inlet and an air outlet; the air outlet is connected to the connecting pipe through an air outlet check valve; the air inlet is provided with an air inlet check valve for drawing in external air when the compressed air bag recovers its deformation; one end of the connecting pipe passes through the collection box and is fixedly connected to a nozzle.

[0012] Preferably, the bottom end of the collection box is connected to the top end of a filter box via a branch pipe, and the bottom end of the filter box is connected to the top end of a storage box.

[0013] Preferably, a filter screen is provided at the connection between the branch pipe and the collection box, and the nozzle is positioned to be aligned with the surface of the filter screen.

[0014] Preferably, a first guide rail is fixedly connected to the outer side of the connecting frame, a second motor is fixedly connected to the outer side of the connecting frame, and a second lead screw is fixedly connected to the output end of the second motor; One end of the second lead screw is rotatably connected to the inner side of the connecting frame, the middle part of the second lead screw is threadedly connected to the gantry frame, and the bottom end of the gantry frame is slidably connected to the top end of the first guide rail.

[0015] Preferably, a third motor is fixedly connected to the outer side of the gantry frame, and a third lead screw is fixedly connected to the output end of the third motor; The middle part of the third lead screw is threadedly connected to the adjusting plate, the inner side of the gantry is fixedly connected to the second guide rail, and the adjusting plate is slidably connected to the outer side of the second guide rail.

[0016] The beneficial effects of this invention are: 1. The present invention provides a filter circulation mechanism at the bottom of the drilling machine, which allows the cutting fluid and metal chips generated during the processing to be uniformly introduced into the collection box for centralized treatment. The first motor drives the first lead screw to rotate and controls the forward and reverse rotation of the motor, thereby driving the support to produce stable reciprocating movement. The support drives the connecting plate and the filter cotton at the bottom of the connecting plate to move synchronously, so that the filter cotton always adheres to the inner wall of the collection box, forming a dynamic scraping structure. This effectively concentrates and pushes the metal debris attached to the inner wall surface into the filter box, preventing the debris from accumulating in the collection box for a long time and causing blockage or pollution. At the same time, during the movement of the connecting plate, the trigger rod periodically squeezes the compression bladder. The gas inside the compression bladder is sprayed to the side of the filter screen through the outlet one-way valve, the connecting pipe and the nozzle, forming a continuous airflow cleaning effect on the surface of the filter screen. When the trigger rod is removed, the compression bladder recovers its deformation under its own elasticity and draws in external air through the inlet one-way valve to prepare for the next compression. Structurally, this reduces the probability of the filter screen being blocked by fine debris. The liquid in the collection box enters the filter box for deep purification after preliminary filtration through the branch pipe and the filter screen. Finally, the clean cutting fluid is stored in the storage tank, forming a complete cutting fluid circulation filtration path. This enables the reuse of cutting fluid, reduces the frequency of manual cleaning, improves the continuous operation capability of the equipment and improves the cleanliness of the processing environment.

[0017] 2. This invention, by setting a positioning mechanism on one side of the drilling machine, enables the gantry frame to form a stable sliding support structure on the first guide rail outside the connecting frame. The second motor is threadedly connected to the gantry frame via a second lead screw, achieving precise horizontal adjustment of the entire drilling machine. This allows the drilling machine to adapt to the processing requirements of air conditioning compressor cylinders of different specifications. On this basis, a third motor drives a third lead screw to form a fine adjustment structure with an adjusting plate. Under the limiting action of the second guide rail, the adjusting plate drives the drilling machine to make fine adjustments back and forth, ensuring that the drilling position remains consistent and repeatable during multi-hole drilling. This effectively reduces the risk of rework caused by workpiece clamping errors or hole position offsets. Combined with a filtration and circulation mechanism, the cutting fluid and chips are processed synchronously during the processing, ensuring stable and coordinated positioning adjustment and processing environment. The overall structure is compact and the motion path is clear. This not only improves the processing accuracy and efficiency of multi-hole drilling but also reduces equipment downtime for maintenance, thus enhancing the comprehensive value of CNC drilling machines in continuous production.

[0018] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0020] Figure 1 This is a schematic diagram of the first overall structure of the present invention; Figure 2 This is a schematic diagram of the second overall structure of the present invention; Figure 3 This is a schematic diagram of the gantry frame portion of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the storage box portion of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7This is a schematic diagram of the structure of the airbag portion of the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the architecture at point C.

[0021] Icons: 1. Drilling machine; 2. Filter circulation mechanism; 201. Collection box; 202. Baffle; 203. Storage box; 204. First motor; 205. Connecting plate; 206. First lead screw; 207. Compressed air bag; 208. Connecting pipe; 209. Support; 210. Spring rod; 211. Fixing plate; 212. Filter cotton; 213. Filter box; 214. Branch pipe; 215. Limiting plate; 216. Air outlet one-way valve; 217. Filter screen; 218. Nozzle; 3. Positioning mechanism; 301. Gantry frame; 302. Adjusting plate; 303. Second motor; 304. Second lead screw; 305. First guide rail; 306. Third motor; 307. Third lead screw; 308. Second guide rail; 4. Connecting frame. Detailed Implementation

[0022] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0023] Please refer to Figures 1 to 8 As shown, the present invention provides a CNC drilling machine suitable for machining multiple holes in air conditioning compressor cylinders, including a drilling machine 1, a filter circulation mechanism 2 at the bottom of the drilling machine 1, and a positioning mechanism 3 on one side of the drilling machine 1. The positioning mechanism 3 includes a gantry 301 and an adjusting plate 302. The adjusting plate 302 is connected to the front of the gantry 301, and the drilling machine 1 is fixedly connected to the outside of the adjusting plate 302. The bottom of the drilling machine 1 is provided with a connecting frame 4, and the top of the connecting frame 4 is fixedly connected with a collection box 201.

[0024] In the aforementioned components, the positioning mechanism 3 adopts a combination design of a gantry frame 301 and an adjusting plate 302. The gantry frame 301 provides a stable support structure in the horizontal direction, while the adjusting plate 302 enables fine adjustment in the vertical direction, ensuring that the drilling machine 1 can achieve precise three-dimensional positioning in space. The filtration and circulation mechanism 2 is located at the bottom of the drilling machine 1. It collects and initially separates the cutting fluid and metal chips generated during the processing through a collection box 201. This structural layout is reasonable and compact, with clear division of labor among the functional modules. It can meet the high-precision requirements of multi-hole machining of air conditioning compressor cylinders. At the same time, the automated filtration and circulation system effectively maintains a clean processing environment, providing reliable technical support for continuous large-scale production and significantly improving production efficiency and product quality stability.

[0025] It should be noted that, in this embodiment, the first lead screw 206 is provided with a support 209 that is threadedly engaged with it. The first motor 204 can be controlled to rotate forward and reverse, thereby driving the first lead screw 206 to rotate alternately in the forward and reverse directions, which in turn drives the support 209 and the connecting plate 205 fixed thereto to reciprocate linearly along the axial direction of the first lead screw 206.

[0026] A first motor 204 is fixedly connected to the outside of the collection box 201. A first lead screw 206 is fixedly connected to the output end of the first motor 204. The two ends of the first lead screw 206 are rotatably connected to the opposite inner wall of the collection box 201. The first motor 204 and the first lead screw 206 together constitute the power component of the present invention. A baffle 202 is fixedly connected to the top of the collection box 201.

[0027] In the aforementioned components, a first motor 204, located on the outside of the collection box 201, serves as the power source for the filtration mechanism, driving the first lead screw 206 to rotate via its output shaft. By controlling the direction of rotation of the first motor 204, the support 209, threadedly engaged with the first lead screw 206, can reciprocate stably. One end of the first lead screw 206 is rotatably connected to the inner wall of the collection box 201 via a bearing structure, ensuring smooth and reliable operation of the entire transmission system and providing a continuous and stable power foundation for the subsequent continuous scraping action of the filter cotton 212. This driving method features a simple and compact structure, high motion efficiency, and effectively solves the technical problem of easy clogging caused by debris accumulation in traditional static filtration mechanisms, thereby increasing the continuous operating time of the equipment.

[0028] A support 209 is threadedly connected to the middle of the first lead screw 206. A connecting plate 205 is fixedly connected to the outer side of the support 209. The end of the connecting plate 205 away from the support 209 is slidably connected to the inner side of the collection box 201. The connecting plate 205 achieves a sliding connection by cooperating with a guide rail fixed to the inner side of the collection box 201 through a slider provided at its end.

[0029] In the aforementioned components, the first lead screw 206 forms a reliable transmission connection with the support 209 via a precision thread. The outer side of the support 209 is rigidly fixed to the connecting plate 205. The other end of the connecting plate 205 is slidably connected to the inner wall of the collection box 201 via a slider or guide rail structure, forming a stable motion guiding system. This connection method ensures that the connecting plate 205 maintains a straight trajectory during reciprocating motion, without deviation or jamming, providing reliable mechanical support for the uniform scraping of the filter cotton 212. At the same time, the sliding connection design effectively reduces motion resistance, lowers energy loss, improves the operating efficiency and service life of the entire filtration system, and ensures stable performance even under long-term continuous working conditions.

[0030] A spring rod 210 is fixedly connected to the bottom end of the connecting plate 205. A fixing plate 211 is fixedly connected to the lower end of the spring rod 210. A filter cotton 212 is engaged with the bottom end of the fixing plate 211. The bottom end of the filter cotton 212 is attached to the inner wall of the collection box 201. The connecting plate 205, the spring rod 210, the fixing plate 211, and the filter cotton 212 together constitute the filter component of the present invention.

[0031] In the aforementioned components, the bottom end of the connecting plate 205 is connected to the fixing plate 211 via a spring rod 210. The spring rod 210 provides continuously adjustable elastic pressure, ensuring that the filter cotton 212 always adheres to the inner wall surface of the collection box 201 with appropriate pressure. The bottom end of the fixing plate 211 uses a snap-fit ​​connection structure to install the filter cotton 212, facilitating regular replacement and maintenance. Under the action of spring pressure, the filter cotton 212 adheres tightly to the inner wall of the collection box 201, and the reciprocating motion of the connecting plate 205 effectively scrapes and collects metal debris adhering to the inner wall surface. This elastic compression design can automatically compensate for the wear of the filter cotton 212, ensuring good contact throughout its service life and effectively preventing clogging problems caused by debris accumulation on the inner wall of the collection box 201.

[0032] A trigger rod is fixedly connected to the top of the connecting plate 205, a limiting plate 215 is fixedly connected to the outside of the collection box 201, and a compressed airbag 207 is fixedly connected to the inside of the limiting plate 215.

[0033] In the aforementioned components, a trigger rod fixedly mounted on the top of the connecting plate 205 moves synchronously with the reciprocating motion of the connecting plate 205. When the trigger rod moves to a specific position, it contacts the compression airbag 207 and generates a squeezing effect. The compression airbag 207 is fixedly mounted on the outside of the collection box 201 via a limiting plate 215. The limiting plate 215 not only provides installation support but also precisely limits the movement range of the compression airbag 207. This design cleverly utilizes the kinetic energy of the filtration mechanism to achieve periodic compression of the compression airbag 207 through mechanical linkage, generating pulsed airflow for cleaning operations. This achieves automated cleaning without additional power input, greatly improving the intelligence level and energy efficiency of the equipment.

[0034] The air outlet of the compressed air bladder 207 is connected to the connecting pipe 208 via an exhaust check valve 216. One end of the connecting pipe 208 passes through the collection box 201 and is fixedly connected to the nozzle 218. The compressed air bladder 207 is equipped with an inlet check valve and an outlet check valve 216. When the trigger rod squeezes the compressed air bladder 207, the air inside is forced into the connecting pipe 208 through the outlet check valve 216 and finally ejected at high speed by the nozzle 218. When the trigger rod is released, the compressed air bladder 207 returns to its original position due to its elasticity, generating a negative pressure inside. At this time, the inlet check valve opens to draw in external air, and the outlet check valve 216 closes, thus completing one working cycle and realizing the periodic generation of pulsed airflow.

[0035] In the aforementioned components, the compressed air bladder 207 is equipped with an air inlet and an air outlet. The air outlet is sealed to the connecting pipe 208 via an air outlet check valve 216, and the air inlet is equipped with an air inlet check valve. The check valves ensure that airflow can only flow from the compressed air bladder 207 to the connecting pipe 208, and can replenish air from the outside atmosphere, effectively preventing the backflow of polluted gas and causing secondary pollution. The connecting pipe 208 penetrates the wall of the collection box 201 and extends into the interior, with a dedicated nozzle 218 fixedly installed at its end. The nozzle 218 is optimized to generate a concentrated and effective airflow. When the compressed air bladder 207 is squeezed by the trigger rod, the internal gas enters the connecting pipe 208 through the air outlet check valve 216 and is finally ejected from the nozzle 218 in a pulse form. When the squeezing is released, the air inlet check valve opens to replenish air. This cleaning method is not only energy-saving and environmentally friendly, but also has a concentrated airflow impact force, which can effectively remove the deposits on the surface of the filter screen 217 and keep the filtration system unobstructed.

[0036] The bottom end of the collection box 201 is connected to the top end of the filter box 213 via a branch pipe 214. The bottom end of the filter box 213 is connected to the top end of the storage box 203. The branch pipe 214 serves as a liquid delivery channel, introducing the cutting fluid, which has undergone preliminary treatment by the collection box 201, into the filter box 213.

[0037] In the aforementioned components, the bottom end of the collection box 201 is connected to the branch pipe 214 via a flange or welding. The other end of the branch pipe 214 is connected to the filter box 213, forming a transition structure from primary filtration to fine filtration. The bottom end of the filter box 213 is also fixedly connected to the storage box 203, forming a complete multi-stage liquid treatment system. The branch pipe 214 serves as a liquid transport channel, guiding the cutting fluid, initially treated by the collection box 201, into the filter box 213 for further purification. This staged filtration design ensures that each treatment stage has a dedicated container to perform its corresponding function, greatly improving filtration efficiency and treatment effect, ensuring that the cutting fluid meets reuse standards after complete treatment, and effectively reducing resource consumption and environmental pollution.

[0038] The branch pipe 214 is connected to the inner wall of the collection box 201. A filter screen 217 is fixedly connected to the top of the branch pipe 214. The nozzle 218 is placed on one side of the filter screen 217 and aligned with the surface of the filter screen 217.

[0039] In the aforementioned components, the branch pipe 214 is reliably connected to a specific location on the inner wall of the collection box 201, ensuring unobstructed liquid flow. A fine filter screen 217 is fixedly installed at the top of the branch pipe 214. The filter screen 217 employs a mesh structure with a specific mesh size, effectively intercepting fine metal particles and impurities. The nozzle 218 is precisely positioned on one side of the filter screen 217 and aligned with the center area of ​​the filter screen 217 surface. When the nozzle 218 sprays a pulsed airflow, the airflow acts evenly on the entire surface of the filter screen 217, effectively removing blockages adhering to the mesh and maintaining the permeability of the filter screen 217. This combined design ensures long-term stable operation of the filtration system and reduces maintenance frequency.

[0040] A first guide rail 305 is fixedly connected to the outer side of the connecting frame 4, and a second motor 303 is fixedly connected to the outer side of the connecting frame 4. A second lead screw 304 is fixedly connected to the output end of the second motor 303. One end of the second lead screw 304 is rotatably connected to the inner side of the connecting frame 4, and the middle part of the second lead screw 304 is threadedly connected to the gantry frame 301. The bottom end of the gantry frame 301 is slidably connected to the top end of the first guide rail 305.

[0041] In the aforementioned components, a first guide rail 305 is precisely mounted on the outer side of the connecting frame 4 as a guiding base. A second motor 303 is fixed to the outer side of the connecting frame 4 via a bracket, and its output shaft is connected to a second lead screw 304 to transmit power. One end of the second lead screw 304 is rotatably connected to the inner side of the connecting frame 4 via a bearing seat, ensuring smooth and precise rotational movement. The middle part of the second lead screw 304 is connected to the gantry frame 301 via a ball screw nut to form a threaded transmission connection. The bottom end of the gantry frame 301 slides with the first guide rail 305 through a slider structure, realizing precise horizontal positioning and movement of the drilling machine 1. This structure has the advantages of smooth operation, accurate positioning, and good rigidity, and can meet the positional requirements of high-precision machining.

[0042] A third motor 306 is fixedly connected to the outer side of the gantry frame 301, and a third lead screw 307 is fixedly connected to the output end of the third motor 306; the middle part of the third lead screw 307 is threadedly connected to the adjusting plate 302, and a second guide rail 308 is fixedly connected to the inner side of the gantry frame 301, and the adjusting plate 302 is slidably connected to the outer side of the second guide rail 308.

[0043] In the aforementioned components, a third motor 306 is mounted on the outer side of the gantry 301 as the power source for vertical adjustment. The output shaft of the third motor 306 is connected to a third lead screw 307 to generate rotary motion output. The middle part of the third lead screw 307 is connected to the adjusting plate 302 via a precision threaded pair, converting the rotary motion into linear adjustment motion. A second guide rail 308 is mounted on the inner side of the gantry 301 to provide accurate motion guidance for the adjusting plate 302. The adjusting plate 302 cooperates with the second guide rail 308 through a sliding component to achieve fine position adjustment of the drilling machine 1 in the vertical direction. This dual-motor, dual-lead screw positioning structure can meet the complex positional requirements in multi-hole machining, ensuring that each machined hole position meets the design accuracy standard.

[0044] To enable those skilled in the art to fully understand and implement this invention, the specific implementation principle of this invention is further explained below in conjunction with a specific application scenario.

[0045] In use, the air conditioning compressor cylinder to be processed is fixed in the processing area of ​​the drilling machine 1. The workpiece is initially aligned by the positioning mechanism 3. The gantry 301 forms a stable sliding support structure on the first guide rail 305 outside the connecting frame 4. After the second motor 303 is started, its output end drives the second lead screw 304 to rotate. The second lead screw 304 forms a threaded connection with the gantry 301, so that the gantry 301 moves precisely in a straight line along the direction of the first guide rail 305, thereby realizing the overall positioning and adjustment of the drilling machine 1 in the horizontal direction.

[0046] Subsequently, the third motor 306 starts, and the output end of the third motor 306 drives the third lead screw 307 to rotate. The third lead screw 307 forms a threaded connection with the adjusting plate 302. Under the limiting action of the second guide rail 308, the adjusting plate 302 is finely adjusted back and forth along the inner side of the gantry 301, thereby driving the drilling machine 1 to move precisely closer to the workpiece, realizing positioning compensation during multi-hole processing, and ensuring the accuracy and repeatability of the drilling position.

[0047] During the drilling process, cutting fluid and metal chips enter the collection box 201 under the action of gravity. The collection box 201 serves as a primary collection container, and its main function is to collect the mixed liquid generated during the processing and perform preliminary solid-liquid separation. After the first motor 204 is started, its output end drives the first lead screw 206 to rotate. By controlling the direction of the first motor 204, the support 209 can produce stable reciprocating movement.

[0048] During the movement of the support 209, the filter cotton 212 is driven to slide laterally inside the collection box 201 through the connecting plate 205, so that the filter cotton 212 is continuously attached to the inner wall of the collection box 201. This mainly scrapes and gathers the metal debris deposited at the bottom of the collection box, thereby preventing the debris from accumulating in local areas and ensuring that the debris can smoothly enter the subsequent processing stage.

[0049] As the support 209 moves the connecting plate 205, the trigger rod fixedly connected to the upper end of the connecting plate 205 moves synchronously. When the trigger rod contacts the compression bladder 207, it periodically compresses the compression bladder 207. Under the constraint of the limiting plate 215, the compression bladder 207 deforms, and the gas inside enters the connecting pipe 208 through the outlet one-way valve 216, and is finally sprayed onto one side of the filter screen 217 by the nozzle 218. When the trigger rod leaves, the compression bladder 207 recovers its deformation due to its own elasticity. At this time, the inlet one-way valve opens, drawing in outside air. This pulsed airflow periodically cleans the surface of the filter screen 217, effectively preventing debris from adhering to or clogging the filter screen 217, improving filtration efficiency and extending the service life of the filter structure.

[0050] The specific path of cutting fluid treatment is as follows: Cutting fluid containing metal shavings first undergoes preliminary sedimentation and separation in collection box 201, with larger particles being scraped and collected by filter cotton 212. Subsequently, the liquid flows out through branch pipe 214 located at the bottom of collection box 201 under gravity, and first flows through filter screen 217 installed at the inlet of branch pipe 214, intercepting some medium-sized particles. Then, the liquid enters the filter box 213 for further fine filtration and sedimentation treatment, effectively trapping even smaller impurities. The clean cutting fluid after deep treatment in filter box 213 flows by gravity into storage tank 203 located below it for centralized storage. The clean cutting fluid in storage tank 203 is then supplied back to drilling machine 1 through an independent supply pump and pipeline, thus forming a complete cutting fluid recycling system.

[0051] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0052] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0054] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0055] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A CNC drilling machine suitable for machining multiple holes in air conditioning compressor cylinders, comprising a drilling machine (1), characterized in that: The bottom of the drilling machine (1) is provided with a filter circulation mechanism (2), and a positioning mechanism (3) is provided on one side of the drilling machine (1). The filter circulation mechanism (2) includes a collection box (201) for collecting cutting fluid and debris, and a filter component located in the collection box (201) and capable of reciprocating along its inner wall. The filter component is connected to a power component that drives its reciprocating motion. The positioning mechanism (3) includes a gantry (301) and an adjusting plate (302). The adjusting plate (302) is connected to the front of the gantry (301), and the drilling machine (1) is fixedly connected to the outside of the adjusting plate (302). The bottom of the drilling machine (1) is provided with a connecting frame (4), and the top of the connecting frame (4) is fixedly connected to the collection box (201).

2. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 1, characterized in that: The power assembly includes a first motor (204) fixedly connected to the outside of the collection box (201), a first lead screw (206) fixedly connected to the output end of the first motor (204), the two ends of the first lead screw (206) being rotatably connected to the opposite inner wall of the collection box (201), and a baffle (202) fixedly connected to the top of the collection box (201).

3. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 2, characterized in that: The first lead screw (206) is threadedly connected to a support (209) in the middle. A connecting plate (205) is fixedly connected to the outside of the support (209). The end of the connecting plate (205) away from the support (209) is slidably connected to the inside of the collection box (201).

4. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 3, characterized in that: The filter component includes the connecting plate (205), a spring rod (210) fixedly connected to its bottom end, a fixing plate (211) fixedly connected to the lower end of the spring rod (210), and filter cotton (212) snapped onto the bottom end of the fixing plate (211); the bottom end of the filter cotton (212) is attached to the inner wall of the collection box (201).

5. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 4, characterized in that: A trigger rod is fixedly connected to the top of the connecting plate (205), a limiting plate (215) is fixedly connected to the outside of the collection box (201), and a compressed airbag (207) is fixedly connected to the inside of the limiting plate (215).

6. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 5, characterized in that: The compressed air bag (207) is provided with an air inlet and an air outlet; the air outlet is connected to the connecting pipe (208) through an air outlet check valve (216); the air inlet is provided with an air inlet check valve for drawing in external air when the compressed air bag (207) recovers its deformation; one end of the connecting pipe (208) passes through the collection box (201) and is fixedly connected to a nozzle (218).

7. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 6, characterized in that: The bottom end of the collection box (201) is connected to the top end of a filter box (213) via a branch pipe (214), and the bottom end of the filter box (213) is connected to the top end of a storage box (203).

8. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 7, characterized in that: A filter screen (217) is provided at the connection between the branch pipe (214) and the collection box (201), and the nozzle (218) is positioned to be aligned with the surface of the filter screen (217).

9. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 1, characterized in that: The outer side of the connecting frame (4) is fixedly connected to a first guide rail (305), and the outer side of the connecting frame (4) is fixedly connected to a second motor (303). The output end of the second motor (303) is fixedly connected to a second lead screw (304). One end of the second lead screw (304) is rotatably connected to the inner side of the connecting frame (4), the middle part of the second lead screw (304) is threadedly connected to the gantry frame (301), and the bottom end of the gantry frame (301) is slidably connected to the top end of the first guide rail (305).

10. The CNC drilling machine for machining multi-hole positions of air conditioning compressor cylinders according to claim 9, characterized in that: A third motor (306) is fixedly connected to the outside of the gantry frame (301), and a third lead screw (307) is fixedly connected to the output end of the third motor (306). The middle part of the third lead screw (307) is threadedly connected to the adjusting plate (302), the inner side of the gantry frame (301) is fixedly connected to the second guide rail (308), and the adjusting plate (302) is slidably connected to the outer side of the second guide rail (308).

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