A water-cooled drilling apparatus for castings

Abstract

This utility model relates to the field of drilling equipment technology, specifically a water-cooled drilling device for castings, used for drilling holes in castings. It includes a drilling device, a fixed base, a chip removal spray gun, a collection frame, a liquid collection chamber, a filter screen, mounting components, and a sealing component. This utility model, by setting up an external cooling unit, an internal cooling unit, and a chip removal spray gun, can promptly clean debris when the casting area is too large. The collection frame and liquid collection chamber around the fixed base effectively collect the used coolant, facilitating subsequent cleaning of the drilling platform. The filter screen in the liquid collection chamber filters the collected coolant. The mounting components facilitate the installation and removal of the filter screen. The sealing component effectively blocks unfiltered coolant when replacing the filter screen, ensuring the filtration accuracy of the coolant. The filtered coolant is then used in the external cooling unit and the chip removal spray gun, reducing coolant usage costs to some extent.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, specifically a water-cooled drilling equipment for castings. Background Technology

[0002] In the field of casting machining, drilling is a key process, and its processing quality and efficiency directly affect the final precision and production cost of the product. Currently, casting drilling equipment widely employs water cooling technology to cope with the high temperatures generated during drilling. Depending on the coolant delivery path, it is mainly divided into two methods: external cooling and internal cooling. External cooling sprays coolant onto the contact area between the drill bit and the workpiece through external nozzles, while internal cooling delivers coolant directly to the cutting edge through channels inside the drill bit. Both methods effectively reduce the local temperature during drilling, minimize drill bit wear, and suppress thermal deformation of the workpiece material.

[0003] However, existing water-cooled drilling equipment has significant limitations in its coolant application strategy. The coolant spray points are typically concentrated in the drilling area, serving only a single function: cooling, without effectively addressing the timely removal of debris generated during drilling. When machining large castings, a large amount of metal debris splashes and scatters over a wide area of ​​the casting surface. If not removed promptly, this retained debris, under the high temperatures generated during drilling, risks adhering to the casting surface. This adhesion not only scratches the finished surface, affecting appearance quality, but also makes subsequent cleaning extremely difficult, often requiring additional labor and time, thus reducing overall processing efficiency.

[0004] Furthermore, existing equipment generally lacks a systematic design for the effective recovery and recycling of coolant. After drilling operations, coolant mixed with debris and heat flows haphazardly and accumulates on the workpiece surface or inside the equipment's working chamber, making post-drilling cleanup cumbersome and wasting valuable coolant resources. This situation, where coolant cannot be recycled and reused and cleaning becomes increasingly difficult, undoubtedly increases material costs in the production process and the burden of cleaning the work environment.

[0005] Therefore, a water-cooled drilling device for castings is proposed. Summary of the Invention

[0006] The purpose of this utility model is to provide a water-cooled drilling device for castings, in order to solve the problem that the existing casting drilling devices lack the function of active chip removal and coolant recycling, which leads to the inability to remove chips in a timely manner and the waste of coolant resources during the drilling process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A water-cooled drilling device for castings includes a drilling device, a fixed base, a chip removal spray gun, a collection frame, a liquid collection chamber, a filter screen, mounting components, and a sealing component. The fixed base is used to fix the casting. The drilling device is located on the upper end of the fixed base and is used to drill the casting. The chip removal spray gun is connected to the lower end of the drilling device. The collection frame is fixedly connected to the side of the fixed base. The liquid collection chamber is located at the lower left end of the collection frame. The filter screen is slidably connected at the junction of the collection frame and the liquid collection chamber. The mounting component is located inside the liquid collection chamber and is used to fix the filter screen. The sealing component is located inside the fixed base and is used to seal the junction of the collection frame and the liquid collection chamber when the filter screen is removed from the liquid collection chamber.

[0008] Preferably, the drilling equipment is further provided with an internal cooling unit, which is used to cool the casting from the inside when the drilling equipment drills a hole in the casting.

[0009] Preferably, the drilling equipment is further provided with an external cooling unit and an external cooling box on its side. The external cooling unit is used to gradually cool the casting from the outside when the drilling equipment drills a hole in the casting.

[0010] Preferably, the external cooling box and the chip removal spray gun are connected by a pipe.

[0011] The purpose of the above design is that, regardless of whether it is an external or internal cooling unit, although it can effectively cool the drilling environment during casting processing, the iron filings generated during drilling will be flushed away, keeping the debris away from the drilling site and preventing scratches on the hole or casting surface during drilling. However, due to the limitations of existing technology, although the existing coolant can flush the debris around the hole, when the casting area is too large, the coolant does not have enough impact force to flush away the debris with a certain mass and temperature that remains on the casting surface. As a result, some debris will still remain on the casting surface. After drilling, the debris remaining on the casting surface needs to be manually cleaned away. At the same time, if the debris is large and hot, the debris remaining on the casting surface may re-adhere to the casting under high temperature conditions, which may cause scratches on the casting surface. Therefore, this application sets up a chip removal spray gun, which is connected to an external cooling box. The external cooling box provides coolant, and the spray direction of the chip removal spray gun is aimed at the surface of the casting at an angle of 15° to 30°. This effectively washes away the chips discharged from the drilling holes in the casting, thus solving the problem of chips generated during drilling. Because the casting area is large, the existing cooling system lacks direct washing of the chips remaining on the surface of the casting, resulting in chips generated during drilling remaining on the casting.

[0012] Preferably, the collection frame is provided with a collection tilt angle, which is matched with the liquid collection tank.

[0013] In the above scheme, the purpose of the collection tilt angle design is to guide the coolant and debris collected in the collection frame into the liquid collection tank along the collection tilt angle.

[0014] Preferably, the liquid collection tank is provided with a liquid outlet at the bottom, and the liquid outlet is connected to the external cooling tank through a pipe.

[0015] In the above scheme, the purpose of connecting the outlet to the external cooling box through a pipe is to directly spray coolant onto the outside of the drill bit through the external cooling spray gun. The filtration accuracy requirement of the coolant is relatively low. Therefore, the coolant in the collection tank after being filtered through the chip screen can be introduced into the external cooling box, which facilitates the subsequent supply of coolant to the external cooling unit and the chip removal spray gun, thus achieving the function of recycling.

[0016] Preferably, the sealing component includes a sealing groove, a sealing spring, a sealing plate, a sealing guide groove, and an installation port. The sealing groove is formed within a fixed base, and the sealing plate is slidably connected within the sealing groove. The two ends of the sealing spring are respectively connected to the inner wall of the fixed base and the right end of the sealing plate. The sealing guide groove is formed on the inner walls of the front and rear ends of the liquid collection chamber, and the height of the sealing guide groove is the same as the height of the sealing groove. The installation port is formed at the left end of the liquid collection chamber, and the filter screen is slidably connected to the installation port. The height of the installation port is less than the height of the sealing guide groove.

[0017] In the above scheme, the height of the installation port is less than the height of the sealing guide groove. The purpose of this design is that when the filter screen is removed from the installation port, the sealing plate will move to the left along the sealing guide groove under the action of the sealing spring until the left end of the sealing plate moves to the installation port. At this time, the sealing plate will be abutted by the installation port, preventing the sealing plate from moving to the left. This allows the sealing plate to block and intercept the unfiltered coolant above the liquid collection tank.

[0018] Preferably, the mounting components include a mounting groove, a mounting block, a mounting spring, a mounting lever, a mounting slot, and a sealing slot. The mounting groove is located within the liquid collection chamber and communicates with the sealing guide groove. The mounting block is slidably connected within the mounting groove. Both ends of the mounting spring abut against the inner wall of the liquid collection chamber and the side of the mounting block away from the sealing guide groove, respectively. The mounting lever is connected to the left end of the mounting block, and the left end of the mounting lever extends outside the liquid collection chamber. The mounting slot is located on the side of the filter screen, and the sealing slot is located on the side of the sealing plate. The mounting slot and the sealing slot cooperate with each other.

[0019] In the above scheme, when the filter screen is installed from the installation port into the liquid collection tank, the operator first moves the installation lever, causing the installation block to move away from the sealing plate and squeeze the installation spring, so that the end of the installation block near the sealing plate is pulled out of the sealing slot. Then, the filter screen is aligned with the installation port, so that the filter screen abuts against the left end of the sealing plate. Then, the operator pushes the filter screen, causing the filter screen to move the sealing plate to the right and squeeze the sealing spring. During the process of the filter screen moving the sealing plate to the right, the operator can release the installation lever, so that the installation block is in the installation spring. Under the action of the spring, the mounting block is reset, causing the end of the mounting block near the sealing plate to fit against the sealing plate. As the filter screen and the sealing plate move, the end of the mounting block near the sealing plate will gradually slide along the surface of the sealing plate to the surface of the filter screen until the filter screen is completely installed in the mounting opening. At this time, the mounting slot and the mounting block are in the same position. Under the action of the mounting spring, the mounting block is inserted into the mounting slot to fix the filter screen. This allows the filter screen to block the inlet of the liquid collection tank, so that the coolant collected from the collection frame and the collection angle can be filtered by the filter screen.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: By incorporating an external cooling unit, an internal cooling unit, and a chip removal spray gun, the system ensures effective cooling during casting drilling. When the casting area is large, the chip removal spray gun effectively removes residual chips from the casting surface, preventing them from adhering to the casting again due to high temperatures or causing damage. A collection frame and a liquid collection chamber around the mounting base effectively collect the used coolant, facilitating subsequent cleaning of the drilling platform. A filter screen in the liquid collection chamber filters the collected coolant. Installation components facilitate the removal and installation of the filter screen, and a sealing component effectively prevents unfiltered coolant from being used when replacing the filter screen, ensuring filtration accuracy. The filtered coolant is then reused in the external cooling unit and the chip removal spray gun, reducing coolant usage costs to some extent. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 The structure of this utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a partial structural diagram of the fixing seat of this utility model; Figure 4 This is a three-dimensional structural diagram of the fixing base of this utility model; Figure 5 This is a schematic cross-sectional view of the fixing seat of this utility model; Figure 6 This is an enlarged structural diagram of the mounting component of this utility model; Figure 7 This is a schematic diagram of the disassembled filter screen of this utility model.

[0022] In the diagram: 1. Drilling equipment; 2. Mounting base; 3. Chip removal spray gun; 4. Collection frame; 5. Liquid collection tank; 6. Filter screen; 7. Mounting components; 8. Sealing components; 9. External cooling unit; 10. External cooling box; 41. Collection angle; 51. Liquid outlet; 81. Sealing groove; 82. Sealing spring; 83. Sealing plate; 84. Sealing guide groove; 85. Mounting port; 71. Mounting groove; 72. Mounting block; 73. Mounting spring; 74. Mounting lever; 75. Mounting slot; 76. Sealing slot. Detailed Implementation

[0023] To ensure a clear and complete description of the technical solutions in the embodiments of this utility model, and to make the features and advantages more apparent and understandable, the specific implementation methods of this utility model are described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0024] Please see Figures 1 to 7 This utility model provides a water-cooled drilling device for castings, used for drilling holes in castings. It includes a drilling device 1, a fixed base 2, a chip removal spray gun 3, a collection frame 4, a liquid collection chamber 5, a filter screen 6, an installation component 7, and a sealing component 8. The fixed base 2 is used to fix the casting. The drilling device 1 is located on the upper end of the fixed base 2 for drilling holes in the casting. The chip removal spray gun 3 is connected to the lower end of the drilling device 1. The collection frame 4 is fixedly connected to the side of the fixed base 2. The liquid collection chamber 5 is located at the lower left end of the collection frame 4. The filter screen 6 is slidably connected at the junction of the collection frame 4 and the liquid collection chamber 5. The installation component 7 is located inside the liquid collection chamber 5 for fixing the filter screen 6. The sealing component 8 is located inside the fixed base 2 for sealing the junction of the collection frame 4 and the liquid collection chamber 5 when the filter screen 6 is removed from the liquid collection chamber 5.

[0025] The drilling equipment 1 is also equipped with an internal cooling unit, which is used to cool the casting from the inside when the drilling equipment 1 drills a hole in the casting.

[0026] The drilling equipment 1 is also provided with an external cooling unit 9 and an external cooling box 10 on its side. The external cooling unit 9 is used to cool the finished casting from the outside when the drilling equipment 1 drills a hole in the casting.

[0027] Specifically, drilling equipment 1, the internal cooling unit, and the external cooling unit 9 are all existing technologies. For details, please refer to the brand "Jiang Juren Automatic Programming Drilling and Milling Machine". Drilling equipment 1 has a drill bit at the bottom, which rotates during operation to drill holes in castings. The internal cooling unit sprays coolant from inside the drill bit. When drilling deep holes, the high-pressure coolant forcefully pushes chips out of the hole along the chip removal grooves of the drill bit. The internal cooling unit is equipped with a high-pressure cooling pump, an internally cooled spindle (with a rotary joint), and a specially designed internally cooled drill bit (with holes inside). Because the internal cooling unit requires high filtration precision for the coolant, it is equipped with a separate cooling tank. The coolant in the cooling tank undergoes high-precision filtration (typically ≤10µm) and is sprayed directly from the bottom of the drill bit. All of the above utilizes existing technologies. The external cooling unit 9 is equipped with multiple independent external cooling spray guns around the drill bit in the drilling equipment 1. The spray guns directly spray coolant to wash away the metal chips brought out by the drill bit during drilling. This is suitable for situations where the drilling depth is not deep, and the coolant does not directly act on the drill hole of the casting. Therefore, the filtration requirements for the coolant do not need to be too high. Thus, the external cooling box 10 is set up to directly supply coolant to the spray guns.

[0028] The external cooling box 10 and the chip removal spray gun 3 are connected by a pipe. The purpose of this design is that, although both the external cooling unit 9 and the internal cooling unit can effectively cool the drilling environment during casting processing, the iron filings generated during drilling are flushed away, keeping the debris away from the drilling site and preventing scratches on the hole or casting surface during drilling. However, due to the limitations of existing technology, although the existing coolant can flush the debris around the hole, when the casting area is too large, the coolant does not have enough impact force to flush away the debris with a certain mass and temperature remaining on the casting surface. As a result, some debris will still remain on the casting surface. After drilling, the debris remaining on the casting surface needs to be manually cleaned away. At the same time, if the debris is large and hot, the debris remaining on the casting surface may re-adhere to the casting under high temperature conditions, which may cause scratches on the casting surface. Therefore, this application sets up a chip removal spray gun 3, which is connected to the external cooling box 10. The external cooling box 10 provides coolant, and the spray direction of the chip removal spray gun 3 is aimed at the surface of the casting at an angle of 15° to 30°. This effectively washes away the chips discharged from the drilling holes in the casting, thus solving the problem of chips generated during drilling. Because the casting area is large, the existing cooling system lacks direct washing of the chips remaining on the surface of the casting, resulting in chips generated during drilling remaining on the casting.

[0029] The collection frame 4 is provided with a collection tilt angle 41, which cooperates with the liquid collection tank 5. The collection tilt angle 41 can guide the coolant and debris collected in the collection frame 4 into the liquid collection tank 5.

[0030] The bottom of the liquid collection tank 5 is provided with a liquid outlet 51, which is connected to the external cooling tank 10 through a pipe. The purpose of connecting the liquid outlet 51 to the external cooling tank 10 through a pipe is to directly spray coolant onto the outside of the drill bit through the external cooling spray gun for cooling. The filtration accuracy requirement of the coolant is relatively low. Therefore, the coolant in the liquid collection tank 5 after being filtered by the chip filter 6 can be introduced into the external cooling tank 10, so that the external cooling tank 10 can subsequently provide coolant to the external cooling unit 9 and the chip removal spray gun 3, achieving the function of recycling.

[0031] In practical applications, by setting up both the external cooling unit 9 and the internal cooling unit, the internal cooling unit can be used for cooling during deep hole drilling, improving cooling efficiency and drilling quality, while the external cooling unit 9 is used for down-the-hole drilling, ensuring both drilling quality and cooling temperature while saving production costs to some extent. When extremely high drilling quality and cooling requirements are needed, both the internal and external cooling units 9 can be used simultaneously, employing a combination of internal and external cooling to guarantee drilling quality during casting machining.

[0032] By setting collection frames 4 around the fixed base 2, the used coolant can be collected back into the collection frames 4. On the one hand, this can prevent the coolant from flowing to the bottom of the fixed base 2 or the ground, which would make subsequent cleaning difficult. On the other hand, the used coolant can be collected and filtered by the filter screen 6, so that the used coolant can be reused by the external cooling unit 9 and the cleaning spray gun 3, which do not require high filtration precision. This greatly reduces the cost of using coolant.

[0033] By setting a chip removal spray gun 3 on the side of the fixed base 2, the chip removal spray gun 3 is set at a certain angle to the upper surface of the casting. At the same time, the liquid is directly supplied by the external cooling box 10 of the external cooling unit 9. Compared with the external cooling spray gun set on the outside with the spray point directly facing the drilling position, the chip removal spray gun 3 focuses more on flushing the chips on the surface of the casting, avoiding the risk of chips remaining on the surface of the casting sticking to the casting again or scratching the surface of the casting under high temperature, thus further improving the quality of product manufacturing and processing. Example

[0034] Please see Figures 3 to 7A water-cooled drilling device for castings is provided, including a sealing component 8. The sealing component 8 includes a sealing groove 81, a sealing spring 82, a sealing plate 83, a sealing guide groove 84, and an installation port 85. The sealing groove 81 is formed in a fixed base 2, and the sealing plate 83 is slidably connected in the sealing groove 81. The two ends of the sealing spring 82 are respectively connected to the inner wall of the fixed base 2 and the right end of the sealing plate 83. The sealing guide groove 84 is formed on the inner wall of the front and rear ends of the liquid collection tank 5, and the height of the sealing guide groove 84 is the same as the height of the sealing groove 81. The installation port 85 is open. Located at the left end of the liquid collection tank 5, the filter screen 6 is slidably connected to the mounting port 85. The height of the mounting port 85 is less than the height of the sealing guide groove 84. The purpose of this design is that when the filter screen 6 is removed from the mounting port 85, the sealing plate 83 will move to the left along the sealing guide groove 84 under the action of the sealing spring 82 until the left end of the sealing plate 83 moves to the mounting port 85. At this time, the sealing plate 83 will be abutted by the mounting port 85, preventing the sealing plate 83 from moving further to the left. This allows the anti-blocking plate to block and intercept the unfiltered coolant above the liquid collection tank 5.

[0035] The mounting component 7 includes a mounting groove 71, a mounting block 72, a mounting spring 73, a mounting lever 74, a mounting slot 75, and a sealing slot 76. The mounting groove 71 is formed inside the liquid collection tank 5 and communicates with the sealing guide groove 84. The mounting block 72 is slidably connected to the mounting groove 71. Both ends of the mounting spring 73 abut against the inner wall of the liquid collection tank 5 and the side of the mounting block 72 away from the sealing guide groove 84, respectively. The mounting lever 74 is connected to the left end of the mounting block 72, and the left end of the mounting lever 74 extends... Outside the collection chamber 5, the mounting slot 75 is located on the side of the filter screen 6, and the sealing slot 76 is located on the side of the sealing plate 83. The mounting slot 75 cooperates with the mounting block 72, and the sealing slot 76 cooperates with the mounting block 72. This cooperation means that when the filter screen 6 is installed into the collection chamber 5 from the mounting port 85, the operator first moves the mounting lever 74, causing the mounting lever 74 to move the mounting block 72 away from the sealing plate 83, and presses the mounting spring 73, bringing the mounting block 72 closer to the sealing plate. Pull one end of the sealing slot 76 out, then align the filter screen 6 with the mounting port 85, so that the filter screen 6 abuts against the left end of the sealing plate 83. Then, the operator pushes the filter screen 6, causing the filter screen 6 to move the sealing plate 83 to the right and squeeze the sealing spring 82. During the process of the filter screen 6 moving the sealing plate 83 to the right, the operator can release the mounting lever 74, so that the mounting block 72 is reset under the action of the mounting spring 73, so that the end of the mounting block 72 near the sealing plate 83 fits against the sealing plate 83, and as the filter screen 6 and the sealing plate 83 move to the right, the operator can release the mounting lever 74, so that the mounting block 72 is reset under the action of the mounting spring 73, so that the end of the mounting block 72 near the sealing plate 83 fits against the sealing plate 83, and as the filter screen 6 and the sealing plate 83 move to the right, the operator can release the mounting lever 74. As the plate 83 moves, the mounting block 72, near the end of the sealing plate 83, will gradually slide along the surface of the sealing plate 83 to the surface of the filter screen 6 until the filter screen 6 is completely installed in the mounting port 85. At this time, the mounting slot 75 corresponds to the position of the mounting block 72. Under the action of the mounting spring 73, the mounting block 72 is inserted into the mounting slot 75 to fix the filter screen 6, so that the filter screen 6 can block the inlet of the liquid collection tank 5, and the coolant collected from the collection frame 4 and the collection angle 41 can be filtered by the filter screen 6.

[0036] After the filter screen 6 has been used for filtration for a period of time, if too much debris remains on the filter screen 6 and it needs to be replaced and cleaned, the operator only needs to move the installation lever 74 to move the installation block 72 away from the filter screen 6 until the end of the installation block 72 closest to the filter screen 6 is completely pulled out of the installation slot 75. At this time, under the action of the spring force of the sealing spring 82, the sealing plate 83 and the filter screen 6 move to the left until the filter screen 6 is completely removed from the collection chamber 5. The sealing plate 83 then closes the inlet of the collection chamber 5, i.e., the collection chamber... The junction between the collection chamber 5 and the collection frame 4 is completely blocked, ensuring that unfiltered coolant located in the collection frame 4 will not enter the collection chamber 5 when the filter screen 6 is replaced. This guarantees the filtration accuracy of the coolant in the collection chamber 5, allowing the coolant in the collection chamber 5 to be directed into the external cooling box 10 for use by the subsequent external cooling spray gun and the chip removal spray gun 3. This makes the installation and removal of the filter screen 6 convenient while ensuring the filtration accuracy of the coolant in the collection chamber 5. This reduces the cost of coolant use and improves the production quality of the product to a certain extent.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water-cooled drilling device for castings, used for drilling holes in castings, characterized in that: The system includes a drilling device (1), a fixed base (2), a chip removal spray gun (3), a collection frame (4), a liquid collection tank (5), a chip filter (6), mounting components (7), and a sealing component (8). The fixed base (2) is used to fix the casting. The drilling device (1) is located on the upper end of the fixed base (2) and is used to drill holes in the casting. The chip removal spray gun (3) is connected to the lower end of the drilling device (1). The collection frame (4) is fixedly connected to the fixed base (2). On the side, the liquid collection chamber (5) is located at the lower left end of the collection frame (4), the filter screen (6) is slidably connected at the junction of the collection frame (4) and the liquid collection chamber (5), the mounting component (7) is located inside the liquid collection chamber (5) to fix the filter screen (6), and the sealing component (8) is located inside the fixing seat (2) to seal the junction of the collection frame (4) and the liquid collection chamber (5) when the filter screen (6) is removed from the liquid collection chamber (5).

2. The water cooled drill apparatus for castings of claim 1 wherein: The drilling equipment (1) is also equipped with an internal cooling unit, which is used to cool the casting from the inside when the drilling equipment (1) drills the casting.

3. The water cooled drill apparatus for castings of claim 1 wherein: The drilling equipment (1) is also provided with an external cooling unit (9) and an external cooling box (10) on its side. The external cooling unit (9) is used to cool the casting from the outside when the drilling equipment (1) drills the casting.

4. The water cooled drill apparatus for castings of claim 3 wherein: The external cooling box (10) and the chip removal spray gun (3) are connected by a pipe.

5. The water cooled drill apparatus for castings of claim 1 wherein: The collection frame (4) is provided with a collection tilt angle (41), which is in conjunction with the liquid collection tank (5).

6. The water cooled drill apparatus for castings of claim 4 wherein: The liquid collection tank (5) is provided with a liquid outlet (51) at the bottom, and the liquid outlet (51) is connected to the external cooling box (10) through a pipe.

7. The water cooled drill apparatus for castings of claim 6 wherein: The sealing component (8) includes a sealing groove (81), a sealing spring (82), a sealing plate (83), a sealing guide groove (84), and an installation port (85). The sealing groove (81) is opened in the fixed base (2). The sealing plate (83) is slidably connected in the sealing groove (81). The two ends of the sealing spring (82) are respectively connected to the inner wall of the fixed base (2) and the right end of the sealing plate (83). The sealing guide groove (84) is opened on the inner wall of the front and rear ends of the liquid collection tank (5). The height of the sealing guide groove (84) is the same as the height of the sealing groove (81). The installation port (85) is opened at the left end of the liquid collection tank (5). The filter screen (6) is slidably connected to the installation port (85). The height of the installation port (85) is less than the height of the sealing guide groove (84).

8. The water cooled drill apparatus of claim 7, wherein: The mounting component (7) includes a mounting groove (71), a mounting block (72), a mounting spring (73), a mounting lever (74), a mounting slot (75), and a sealing slot (76). The mounting groove (71) is formed inside the liquid collection tank (5) and communicates with the sealing guide groove (84). The mounting block (72) is slidably connected inside the mounting groove (71). The two ends of the mounting spring (73) are respectively connected to the inner wall of the liquid collection tank (5) and the sealing guide groove (84). The mounting block (72) abuts against the side away from the sealing guide groove (84). The mounting lever (74) is connected to the left end of the mounting block (72). The left end of the mounting lever (74) extends out of the liquid collection chamber (5). The mounting slot (75) is opened on the side of the filter screen (6). The sealing slot (76) is opened on the side of the sealing plate (83). The mounting slot (75) cooperates with the mounting block (72). The sealing slot (76) cooperates with the mounting block (72).

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