Alloy steel drilling device with cooling device

Abstract

The present application relates to the field of drilling, especially alloy steel drilling device with cooling device. The technical problem to be solved is that the existing magnetic drill cooling method is single, cannot be flexibly switched according to the actual working condition, the cooling liquid is difficult to recycle, the use cost is high, and there is lack of sealing protection in the drilling process, the cooling liquid is easy to splash, and the debris is easy to hurt people. The technical scheme of the present application is that the alloy steel drilling device with cooling device comprises a magnetic drill machine table and a sliding mechanism; the sliding mechanism is installed on the magnetic drill machine table; the present application realizes the setting of the internal circulating cooling liquid flow path in the drill bit and the communication with the liquid inlet pipe one, and the installation of the protection ring and the movable ring on the execution system, and the movable ring communicates with the liquid inlet pipe two to realize external spray cooling. According to the actual drilling demand, the internal circulating cooling or external cooling method can be flexibly selected - when the hole depth exceeds the times of the drill bit diameter or the difficult cutting materials such as stainless steel are processed, the internal cooling is selected, and for shallow hole and ordinary material, the external cooling is selected.

Description

Technical Field

[0001] This invention relates to the field of drilling, and more particularly to an alloy steel drilling apparatus with a cooling device. Background Technology

[0002] In the machining of large parts such as fixed cones, moving cones, or liners for large crushers, magnetic drills are frequently used during the drilling process due to the complex handling of these parts. A magnetic drill (also known as a magnetic base drill or magnetic drill) is a portable drilling device that uses an electromagnet to adhere to steel parts for drilling operations. During the drilling of alloy steel parts for crushers, the cooling and lubrication of the drilling area, the cleaning and collection of chips, and the safety of the equipment are key factors affecting drilling quality, tool life, and operational safety.

[0003] Currently, existing magnetic drilling devices have the following main shortcomings: 1. The cooling method is singular and cannot be flexibly switched according to actual operating conditions. Existing magnetic drill cooling systems typically employ only a single cooling method. For example, Yangzhou Jinli Electric Tools Co., Ltd. discloses an internal cooling device (CN222095521U) for a high-power magnetic drill, which achieves internal cooling through the coordination of a refrigeration mechanism, a mixing and pressurizing mechanism, and an air supply mechanism. Another example is the use of coolant nozzles for external spray cooling in some existing technologies. However, these existing solutions only provide one of internal or external cooling, failing to allow for flexible switching based on actual working conditions such as drilling depth and material properties. Specifically, internal cooling is necessary when the hole depth exceeds three times the drill bit diameter or when machining difficult-to-cut materials such as stainless steel; while for shallow holes and common materials, external cooling is a more economical and practical solution. The lack of a device in existing technologies that can flexibly switch between internal and external cooling according to actual needs makes it difficult to optimize economic efficiency and machining quality.

[0004] Second, coolant is difficult to recycle and reuse, resulting in high operating costs. In existing magnetic drilling processes, coolant often leaks directly after use, making recycling and reuse difficult. For portable drilling equipment like magnetic drills, coolant loss significantly impacts the working environment. While some drilling equipment incorporates coolant recovery technology—for example, a magnetic adsorption circular wall drilling device (CN117102956B) achieves rapid coolant recovery through a storage sleeve and suction pipe; and a drilling bed with coolant recovery function (CN222221954U) can also cool and remove chips from the workpiece—these solutions are primarily applicable to stationary drilling equipment. For portable magnetic drills, especially in complex conditions such as outdoor use, side-mounted placement, or inverted adsorption, coolant easily leaks into the machine's internal wiring locations, not only wasting coolant but also potentially causing short circuits and other safety hazards. Existing technology lacks an effective solution to this problem.

[0005] Third, the lack of sealing and protection during drilling makes coolant prone to splashing and debris potentially causing injury. During drilling with existing magnetic drills, coolant and debris often splash everywhere, causing significant coolant loss and potential injury to operators. This is especially true for outdoor drilling operations, where the lack of a sealed drilling area makes the area susceptible to external environmental factors such as wind and sand. While some patents exist for magnetic drill protection devices—for example, one device uses an arc-shaped protective plate at the drill bit shaft for protection, and another uses a telescopic cover for comprehensive drill bit protection in a mobile magnetic drill—these solutions only provide simple physical shielding and cannot create an effective sealed space during drilling. They fail to simultaneously address multiple issues such as coolant recovery, splash prevention, and debris protection. Summary of the Invention

[0006] To overcome the shortcomings of existing magnetic drills, such as the single cooling method, inability to flexibly switch according to actual working conditions, difficulty in recycling coolant, high operating costs, lack of sealing protection during drilling, easy splashing of coolant, and easy injury from debris, this invention provides an alloy steel drilling device with a cooling system.

[0007] The technical solution of the present invention is as follows: an alloy steel drilling device with a cooling device, comprising a magnetic drilling rig, a sliding mechanism, a drill bit, and a first inlet pipe; the sliding mechanism is mounted on the magnetic drilling rig; an execution system is mounted on the sliding mechanism to provide power, and a drill bit is mounted on the execution system; an internal circulation coolant flow path is provided inside the drill bit, and a first inlet pipe connected to the internal circulation coolant flow path is mounted on the execution system; it also includes a protective ring, a movable ring, a second inlet pipe, a first suction pipe, and a second suction pipe; a protective ring is mounted on the execution system and is located outside the drill bit; a movable ring is movably connected to the protective ring; the movable ring has a hollow internal structure and is connected to the second inlet pipe and the first suction pipe; the top of the protective ring is hollow and is connected to the second suction pipe for suctioning lubricating fluid.

[0008] More preferably, the inner surface of the top of the protective ring has several annular through holes, which are connected to the suction tube 2; the inner surface of the movable ring has two sets of annular through holes, one upper and one lower, with the upper through hole connected to the liquid inlet tube 2 and the lower through hole connected to the suction tube 1.

[0009] More preferably, the upper through hole on the inner ring surface of the movable ring is set to an oblique downward direction, and the lower through hole is set to an oblique upward direction.

[0010] More preferably, it also includes a cleaning ring and a handle; a cleaning ring for cleaning debris and waste is fixedly connected to the inner side of the movable ring; a handle is installed on the movable ring.

[0011] More preferably, the cleaning ring is made of fiber-reinforced TPU material, which has excellent wear resistance and puncture resistance, and has internal reinforcing ribs that allow it to expand only laterally and not longitudinally.

[0012] More preferably, it also includes a first water inlet pipe and a second water inlet pipe; the lower side of the movable ring is connected to the first water inlet pipe, and the first water inlet pipe is connected to the lower through hole of the inner ring surface of the movable ring; the upper side of the protective ring is connected to the second water inlet pipe, and at the installation position corresponding to the second water inlet pipe, the protective ring has several annular through holes for spraying water.

[0013] More preferably, the height of the second water inlet pipe is higher than the height of the drill bit, ensuring that water spraying begins on its top for cleaning.

[0014] More preferably, it also includes a sealing ring; the lower surface of the movable ring is fixed with a sealing ring for adapting to the surface shape of the uneven alloy sheet.

[0015] More preferably, the sealing ring has a double-layer structure, with the outer layer being a sponge material and the inner layer being a wear-resistant rubber material.

[0016] More preferably, it also includes an air intake pipe, a connecting ring, and a jet ring; the connecting ring is fixedly connected to the movable ring; the connecting ring is connected to a jet ring for jetting; the air intake pipe is connected to the jet ring, and the air intake pipe is a flexible hose that passes through the protective ring.

[0017] The beneficial effects are as follows: This invention achieves external spray cooling by setting an internal circulating coolant flow path inside the drill bit and connecting it to the inlet pipe, while installing a protective ring and a movable ring on the execution system. The movable ring is connected to the inlet pipe. Operators can flexibly choose between internal circulation cooling or external cooling according to actual drilling requirements (such as drilling depth, material type, etc.)—internal cooling is used when the hole depth exceeds a multiple of the drill bit diameter or when machining difficult-to-cut materials such as stainless steel, while external cooling is used for shallow holes and ordinary materials. This effectively overcomes the shortcomings of the single cooling method in the prior art and optimizes economic benefits and processing quality. By combining a protective ring, a movable ring, and a sealing ring, a sealed drilling space is formed during the drilling process. On the one hand, the sealing structure effectively prevents the splashing of coolant and debris, preventing coolant loss and debris injury; on the other hand, through external suction mechanisms connected to suction pipes one and two, the coolant in the sealed space can be sucked and recovered, achieving secondary use and significantly reducing drilling costs. Compared with existing magnetic drills where coolant recovery is difficult, this invention is particularly suitable for scenarios lacking recovery facilities. By incorporating a cleaning ring made of fiber-reinforced TPU material, which boasts superior wear resistance and puncture resistance, and features internal reinforcing ribs that allow for lateral expansion only, preventing longitudinal expansion, the cleaning ring's expansion can be adjusted before drilling to maintain a suitable gap with the drill bit. During drilling, the cleaning ring prevents debris from entangled on the upper side of the drill bit. After drilling is complete, pulling down the handle moves the movable ring and cleaning ring downwards, scraping off any debris entangled on the underside of the drill bit. This eliminates the need for manual cleaning with a hook, effectively reducing cleaning difficulty and improving operational safety. By incorporating an air inlet pipe, connecting ring, and jet ring, after the casing drill has been used, high-pressure gas can be supplied to the jet ring via an external air intake device connected to the air inlet pipe. This gas is then injected into the casing drill through pre-set micro-holes at the top, using the high-pressure gas to blow out the central waste material. For normal horizontal placement, pulling the handle can also move the jet ring downwards and strike the top of the casing drill, assisting in removing the central material. This effectively solves the problem of difficult removal of central waste material from existing casing drills, especially under side-mounted and inverted adsorption conditions. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the alloy steel drilling device with a cooling device according to the present invention. Figure 2This is a schematic diagram of a second three-dimensional structure of the alloy steel drilling device with a cooling device according to the present invention; Figure 3 This is the front view of the present invention; Figure 4 This is a first cross-sectional view of the protective ring of the present invention; Figure 5 This is a schematic diagram of a second three-dimensional structure of the protective ring of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the cleaning ring of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the jet ring of the present invention.

[0019] The diagram is labeled as follows: 1-Magnetic drilling rig platform, 1001-Actuation system, 2-Protective plate, 3-Sliding mechanism, 4-Drill bit, 5-Inlet pipe one, 101-Protective ring, 102-Moving ring, 103-Inlet pipe two, 104-Suction pipe one, 105-Cleaning ring, 106-Handle, 107-Suction pipe two, 108-Water inlet pipe one, 109-Water inlet pipe two, 110-Sealing ring, 201-Air inlet pipe, 202-Connecting ring, 203-Air jet ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0021] Example 1

[0022] Alloy steel drilling equipment with cooling devices, such as Figures 1-6 As shown, it includes a magnetic drilling rig platform 1, a sliding mechanism 3, a drill bit 4, and an inlet pipe 5; the magnetic drilling rig platform 1 is equipped with a sliding mechanism 3, which is composed of a slider and a slide rail; the sliding mechanism 3 is equipped with an execution system 1001, and the execution system 1001 is equipped with a drill bit 4; the drill bit 4 has an internal circulation coolant flow path, and the execution system 1001 is equipped with an inlet pipe 5 that communicates with the internal circulation coolant flow path; It also includes a protective ring 101, a movable ring 102, a second inlet pipe 103, a first suction pipe 104, and a second suction pipe 107; the protective ring 101 is installed on the execution system 1001, and the protective ring 101 is located outside the drill bit 4, wrapping and protecting the drill bit 4; the movable ring 102 is movably connected to the protective ring 101, and the movable ring 102 and the protective ring 101 are connected by a spring; the movable ring 102 has a hollow internal structure, and is connected to the second inlet pipe 103 and the first suction pipe 104, and the first suction pipe 104 is located below the second inlet pipe 103; the top of the protective ring 101 is hollow and is connected to the second suction pipe 107.

[0023] The inner surface of the top of the protective ring 101 has several annular through holes, which are connected to the second suction tube 107; the inner surface of the movable ring 102 has two sets of annular through holes, one upper and one lower, with the upper through hole connected to the second liquid inlet tube 103 and the lower through hole connected to the first suction tube 104.

[0024] The upper through hole on the inner ring surface of the movable ring 102 is set to the downward direction, and the lower through hole is set to the upward direction.

[0025] It also includes a cleaning ring 105 and a handle 106; the cleaning ring 105 is fixedly connected to the inside of the movable ring 102; the handle 106 is installed on the movable ring 102.

[0026] The cleaning ring 105 is made of fiber-reinforced TPU material, which has excellent wear resistance and puncture resistance. It also has internal reinforcing ribs, which allow it to expand only laterally and not longitudinally.

[0027] It also includes a first water inlet pipe 108 and a second water inlet pipe 109; the lower side of the movable ring 102 is connected to the first water inlet pipe 108, and the first water inlet pipe 108 is connected to the lower through hole of the inner ring surface of the movable ring 102; the upper side of the protective ring 101 is connected to the second water inlet pipe 109, and at the installation position corresponding to the second water inlet pipe 109, the protective ring 101 has several annular through holes for spraying water.

[0028] The height of the water inlet pipe 2 (109) is higher than the height of the drill bit 4, ensuring that water spraying begins on its top for cleaning.

[0029] It also includes a sealing ring 110; the sealing ring 110 is fixedly attached to the lower surface of the movable ring 102.

[0030] The sealing ring 110 has a double-layer structure, with the outer layer being a sponge material and the inner layer being a wear-resistant rubber material.

[0031] It also includes a protective plate 2; the magnetic drill platform 1 is equipped with a protective plate 2, which provides liquid protection for the magnetic base at the bottom of the magnetic drill platform 1.

[0032] When starting to drill into the alloy steel, first manually place the magnetic drill table 1 flat on the alloy steel material. After ensuring it is level, turn on the power so that the magnetic base at the bottom of the magnetic drill table 1 is attracted and fixed onto the alloy steel material. After fixing, manually adjust the execution system 1001 according to the actual drilling requirements so that the rotation speed of the drill bit 4 and the travel speed of the sliding mechanism 3 meet the requirements. After adjustment, start the drilling operation. Since the drilling process needs to be divided into various situations, the following describes different situations separately: The magnetic drilling rig platform 1 is placed flat on the alloy steel material. When the sliding mechanism 3 controls the execution system 1001 and the drill bit 4 and other components to move downwards and come into contact with the alloy steel material, the drill bit 4 performs drilling operations. During the drilling process, when the drill bit 4 moves downwards, the protective ring 101, the movable ring 102, and the sealing ring 110 also move downwards synchronously. After the sealing ring 110 comes into contact with the surface of the alloy steel material, when the drill bit 4 continues to move downwards and drills, the movable ring 102 cannot continue to move downwards. Instead, it gradually compresses the spring between itself and the protective ring 101, so that the drilling space is sealed during the drilling process. This prevents the subsequent splashing of coolant and debris, thus avoiding coolant loss and debris splashing that could cause injury. At the same time, for outdoor drilling, it can effectively avoid the impact of external environmental factors such as wind and sand on privacy. During drilling, depending on the thickness of the steel plate, there are two cooling methods: internal circulation cooling (internal cooling is a "must-have" when the hole depth exceeds three times the diameter of the drill bit, or when machining difficult-to-cut materials such as stainless steel) and external cooling (external cooling is an economical and practical "optional" for shallow holes and ordinary materials). In existing technologies, only a single cooling method is typically installed, without adjustment based on actual needs to maximize economic benefits. Therefore, in this device, adjustments can be made according to actual requirements. When internal circulation cooling is needed, coolant can be supplied to the inlet pipe 5 through an external coolant delivery mechanism; when external cooling is needed, coolant can be supplied through an external... The coolant delivery mechanism delivers coolant to the inlet pipe 103 and then sprays it directly onto the drill bit 4 to achieve cooling. In existing technologies, coolant is difficult to recycle after use, especially outdoors. Therefore, after the sealing operation, a suction mechanism connected to the suction pipe 104 can be used to suction and recycle the coolant inside the protective ring 101, achieving secondary use and reducing drilling costs. Simultaneously, the sealing operation effectively prevents coolant from flowing to the bottom of the magnetic base, thus avoiding unstable adhesion between the magnetic base and the alloy steel material, improving stability and safety during drilling.

[0033] The magnetic drill rig 1 is placed on its side or upside down and adsorbed onto the alloy steel material for drilling: Based on the above-mentioned horizontal drilling operation, when placed on its side or upside down, there is a possibility that the coolant will flow back into the wiring position inside the magnetic drill rig 1 (such as inside the execution system 1001). Therefore, the sealing operation can also effectively avoid this problem. At the same time, in the case of upside down adsorption, the coolant can be recycled by connecting the suction pipe 2 107 to the external suction mechanism.

[0034] During drilling, debris and waste material may become entangled on the drill bit 4. In existing operations, after drilling is completed, the entangled debris and waste material needs to be manually cleaned. In this device, before drilling begins, the expansion of the cleaning ring 105 is adjusted synchronously according to the size of the drill bit 4. The cleaning ring 105 is inflated to create a certain gap (controlled between 1-2 cm) between the cleaning ring 105 and the drill bit 4. When debris and waste material become entangled on the drill bit 4, the cleaning ring 105 prevents the debris and waste material from wrapping around the upper side of the drill bit 4, instead blocking it collectively on the lower side of the drill bit 4. After drilling is completed, the handle 106 is manually pulled down, causing the handle 106 to simultaneously drive the movable ring 102 and the cleaning ring 105 downwards. The cleaning ring 105 then scrapes off and cleans the debris and waste material entangled on the lower side of the drill bit 4, eliminating the need for manual cleaning with hooks or similar tools, effectively reducing the cleaning difficulty and improving the safety factor.

[0035] When the cleaning ring 105 cleans debris and waste, the required drilling size may vary, necessitating the replacement of the drill bit 4 or even the addition of a casing drill (a hollow drill bit 4 that cuts only the annular groove when machining large-diameter holes, allowing the removal of the central material and saving power and materials). The cleaning ring 105 can also be adjusted in size to achieve a suitable fit. After drilling, to prevent debris from adhering to the surface of the drill bit 4 or the inner wall of the casing drill, which could damage subsequent drilling, a water inlet mechanism can be connected to the water inlet pipes 108 and 109 simultaneously. Clean water is then delivered to the inside of the water inlet pipes 108 and 109 and sprayed onto the drill bit 4 and the casing drill. Since the through hole of the water inlet pipe 108 is angled upwards, the cleaning water can be effectively sprayed onto the inner wall of the casing drill, thus avoiding the difficulties of manual cleaning.

[0036] Furthermore, since the drilled area of ​​the alloy steel material may be an uneven surface, in order to solve this problem, the sealing ring 110 is set as a double-layer structure of sponge and rubber to achieve deformation adaptation and improve adaptability. In addition, in order to further improve the adsorption effect of the magnetic base and prevent liquid from contacting its base, a protective plate 2 is also installed on the magnetic base to guide the liquid and improve the safety factor.

[0037] Example 2

[0038] Based on Example 1, such as Figure 6 and Figure 7 As shown, it also includes an air intake pipe 201, a connecting ring 202, and a jet ring 203; the connecting ring 202 is fixedly connected to the movable ring 102; the jet ring 203 is connected to the connecting ring 202; the air intake pipe 201 is connected to the jet ring 203, and the air intake pipe 201 is a flexible hose that passes through the protective ring 101.

[0039] Based on the above-mentioned use of the nesting drill, there is a possibility that the central material may be adsorbed and stuck inside the nesting drill, making it difficult to remove manually, especially when it is placed on its side or upside down for adsorption, it is more likely to be adsorbed and stuck inside the nesting drill. Therefore, after drilling is completed, the handle 106 is manually pulled, so that the handle 106 drives the moving ring 102 and the connecting ring 202 to move synchronously. That is, the connecting ring 202 drives the air jet ring 203 to move to the top of the nesting drill. At this time, based on the conventional nesting drill, a small number of micro-holes can be added to its top, and then an air intake device can be connected through the air intake pipe 201. The high-pressure gas is delivered to the air jet ring 203 through the air intake pipe 201, and then the air jet ring 203 sprays into the nesting drill through the micro-holes, thereby realizing the operation of high-pressure air jet discharge.

[0040] When placed horizontally, the center material can be removed by manually pulling the handle 106, which simultaneously moves the air jet ring 203 downward and strikes the top of the die. If it is still stuck and cannot be removed, the above-mentioned air jet operation can be used to remove it.

[0041] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. An alloy steel drilling device with a cooling system, comprising a magnetic drilling platform (1), a sliding mechanism (3), a drill bit (4), and an inlet pipe (5); the sliding mechanism (3) is mounted on the magnetic drilling platform (1); an actuation system (1001) is mounted on the sliding mechanism (3) for providing power, and the drill bit (4) is mounted on the actuation system (1001); an internal circulation coolant flow path is provided inside the drill bit (4), and an inlet pipe (5) connected to the internal circulation coolant flow path is mounted on the actuation system (1001); characterized in that: It also includes a protective ring (101), a movable ring (102), a second inlet pipe (103), a first suction pipe (104), and a second suction pipe (107); the protective ring (101) is installed on the execution system (1001), and the protective ring (101) is located outside the drill bit (4); the movable ring (102) is movably connected to the protective ring (101); the movable ring (102) is hollow inside and is connected to the second inlet pipe (103) and the first suction pipe (104); the top of the protective ring (101) is hollow and is connected to the second suction pipe (107) for sucking lubricating fluid.

2. The alloy steel drilling device with a cooling device according to claim 1, characterized in that: The top inner ring surface of the protective ring (101) has several annular through holes, which are connected to the second suction tube (107); the inner ring surface of the movable ring (102) has two sets of annular through holes, one above the other, with the upper through hole connected to the second liquid inlet tube (103) and the lower through hole connected to the first suction tube (104).

3. The alloy steel drilling device with a cooling device according to claim 1, characterized in that: The upper through hole on the inner ring surface of the movable ring (102) is set to the downward direction, and the lower through hole is set to the upward direction.

4. The alloy steel drilling device with a cooling device according to claim 3, characterized in that: It also includes a cleaning ring (105) and a handle (106); a cleaning ring (105) for cleaning debris is fixed to the inside of the movable ring (102); a handle (106) is installed on the movable ring (102).

5. The alloy steel drilling device with a cooling device according to claim 4, characterized in that: The cleaning ring (105) is made of fiber-reinforced TPU material, which has super wear resistance and puncture resistance, and has internal reinforcing ribs, which make it only expand laterally and not longitudinally.

6. The alloy steel drilling device with a cooling device according to claim 1, characterized in that: It also includes a water inlet pipe 1 (108) and a water inlet pipe 2 (109); the lower side of the movable ring (102) is connected to the water inlet pipe 1 (108), and the water inlet pipe 1 (108) is connected to the lower through hole of the inner ring surface of the movable ring (102); the upper side of the protective ring (101) is connected to the water inlet pipe 2 (109), and at the corresponding installation position of the water inlet pipe 2 (109), the protective ring (101) has several annular through holes for spraying water.

7. The alloy steel drilling device with a cooling device according to claim 6, characterized in that: The height of the second water inlet pipe (109) is higher than the height of the drill bit (4) to ensure that water spraying begins on its top.

8. The alloy steel drilling device with a cooling device according to claim 1, characterized in that: It also includes a sealing ring (110); the lower surface of the movable ring (102) is fixed with a sealing ring (110) for adapting to the surface shape of the uneven alloy plate.

9. The alloy steel drilling device with a cooling device according to claim 8, characterized in that: The sealing ring (110) has a double-layer structure, with the outer layer being a sponge material and the inner layer being a wear-resistant rubber material.

10. The alloy steel drilling device with a cooling device according to claim 1, characterized in that: It also includes an air intake pipe (201), a connecting ring (202) and a jet ring (203); the connecting ring (202) is fixedly connected to the movable ring (102); the connecting ring (202) is connected to a jet ring (203) for jetting; the air intake pipe (201) is connected to the jet ring (203), and the air intake pipe (201) is a flexible hose that passes through the protective ring (101).

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