Cooling equipment for drilling

Abstract

The invention relates to cooling equipment for drilling machining, and relates to the technical field of metal machining, the cooling equipment comprises a moving seat and a cooling mechanism, and the cooling mechanism comprises a cooling seat which is arranged on the moving seat through an elastic mechanism and slides in the sliding direction of the moving seat when being stressed; and the spraying assembly is arranged on the cooling base and used for spraying cooling liquid towards the drill bit, and when the moving speed of the moving base driving the drill bit to move is changed, the cooling base swings in a reciprocating mode under the action of inertia and elastic force. When the moving speed of the drill bit is changed, under the action of inertia and an elastic mechanism, the spraying assembly continuously swings in a reciprocating mode, the spraying position of the spraying assembly is changed, and therefore the spraying area is increased, the safety risk in the machining process is reduced, and meanwhile the machining quality of metal is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal processing, and in particular to a cooling device for drilling processing. Background Art

[0002] CNC machine tools are basic equipment for industrial production, mainly used for processing various metals, including drilling and other processes.

[0003] Since drilling requires the drill bit to process the metal after high rotation, high temperature will be generated during the process. In particular, some active metals are prone to combustion. Therefore, cooling equipment is crucial in the above process.

[0004] In the prior art, cooling is generally achieved by spraying coolant at the tool tip with a spray pipe, but the position of the spray pipe is always maintained at one position, which easily leads to uneven temperature distribution of the metal and reduces the cooling effect on the metal; at the same time, during the drilling process, the drill tip will drill into the metal from the metal surface, but the spray position of the spray pipe remains unchanged. When the position where the spray pipe sprays coolant moves below the metal processing surface, the coolant cannot contact the metal to achieve cooling. Although the drill bit moves up and down during operation to achieve the tool retraction action, the moving path is small when retracting the tool, making it difficult for the coolant to contact the metal, thereby reducing the cooling effect on the metal, increasing the safety risk during the processing, and reducing the processing quality of the metal. Summary of the invention

[0005] In order to reduce the safety risks during the processing and improve the processing quality of metal, the present application provides a cooling device for drilling processing.

[0006] The present application provides a cooling device for drilling processing, which adopts the following technical solution: A cooling device for drilling processing includes a movable seat for mounting a drill bit and driving the drill bit to move, and also includes a cooling mechanism arranged on the movable seat, wherein the cooling mechanism includes: A cooling seat, which is arranged on the moving seat through an elastic mechanism and slides along the sliding direction of the moving seat when subjected to force; The spray assembly is arranged on the cooling seat and is used for spraying cooling liquid toward the drill bit. When the moving speed of the drill bit driven by the moving seat changes, the cooling seat swings back and forth under the action of inertia and elastic force.

[0007] By adopting the above technical solution, the movable seat drives the drill bit and the cooling mechanism to move together, the drill bit quickly moves down to approach the metal, and then the drill bit slows down to approach the metal to achieve drilling, and the drill is continuously retracted during the drilling process, that is, it moves up quickly and then moves back. When the drilling is completed, the drill bit quickly moves up to above the metal, and then continues to move to drill other positions of the metal.

[0008] As the drill speed increases, decreases, and retracts, the speed of the moving seat changes. Therefore, under the action of inertia and elastic mechanism, the cooling seat and the spray assembly continue to swing back and forth, causing the spray position of the spray assembly to change, thereby increasing the spray area and reducing the probability of not being able to spray at the processing position. In addition, the retraction of the drill also makes it easier for the coolant to flow into the hole, thereby further improving the cooling effect on the metal and the drill, reducing the safety risks in the processing process, and improving the processing quality of the metal.

[0009] Optionally, the elastic mechanism includes: Mounting block one, arranged on the cooling seat; The second mounting block is arranged on the movable seat and is located below the first mounting block; A moving rod is arranged on the first mounting block and is slidably arranged on the second mounting block; The spring member is sleeved on the moving rod and has two ends pressed against the first mounting block and the second mounting block for positioning; The blocking component is arranged on the moving rod and is used to block the moving rod from being separated from the second mounting block.

[0010] By adopting the above technical solution, the cooling seat drives the mounting block to move down under the action of gravity, thereby generating downward pressure on the spring part, and the movement of the moving seat drives the moving seat to move, and the movement of the moving seat drives the elastic mechanism and the spray assembly to move together. When the speed of the moving seat slows down, the cooling seat and the spray assembly continue to move downward rapidly under the action of inertia, and the cooling seat continues to move downward so that the mounting seat and the moving rod continue to move downward rapidly, thereby squeezing the spring part, and the moving rod continues to move downward rapidly to drive the blocking assembly away from the mounting block two, and then the spring part pushes the mounting block one, the cooling seat and the spray assembly to move back, and the blocking assembly abuts against the mounting block two to block the moving rod from detaching from the mounting block two, thereby realizing the vertical reciprocating swing of the spray assembly, and because the squeezing force is also generated on the spring part during the movement, the spray assembly can continue to move back and forth until a stable state is finally formed, thereby realizing multiple reciprocating movements of the spray assembly.

[0011] When the moving speed of the moving seat becomes faster, the moving seat moves upward to squeeze the elastic mechanism, and the elastic mechanism drives the spray assembly upward after squeezing, thereby causing the spray assembly to swing back and forth vertically, thereby increasing the spray range of the spray assembly on the metal and the drill bit, improving the cooling effect on the metal and the drill bit, reducing the safety risks in the processing process, and improving the processing quality of the metal.

[0012] At the same time, the spring part is squeezed, and compared with the case where a pulling force is applied to the spring part, squeezing the spring part can further reduce the probability of damage or even failure of the spring part. Furthermore, the two ends of the spring do not need to be welded, thereby reducing the probability of reducing the elastic force of the spring part due to welding, further improving the cooling effect on the metal, reducing the safety risk in the processing process, and improving the processing quality of the metal.

[0013] After the blocking component is unlocked, the moving rod can also be removed from the mounting block two so that the spring can be replaced, and then the moving rod can be slid through the spring and installed on the mounting block two, and finally the blocking component can be connected to the moving rod to achieve the blocking effect. No welding or other procedures are required during the spring replacement process, which greatly improves the convenience of the replacement process, and further improves the cooling effect on the metal, reduces the safety risks during the processing, and improves the processing quality of the metal.

[0014] Optionally, the blocking component includes: A blocking plate is threadedly connected to the moving rod, and when the moving rod moves upward, the blocking plate is driven to abut against the second mounting block to block the moving rod from being separated from the second mounting block; The blocking nut is threadedly connected to the moving rod and pressed against the lower surface of the blocking disk for positioning.

[0015] By adopting the above technical solution, the blocking nut is twisted away from the blocking disk to be removed, and then the blocking disk is removed for replacement, the blocking disk is first threadedly connected to the moving rod, and then the blocking nut is twisted to be threadedly connected to the moving rod, so that the blocking nut is pressed against the blocking disk for positioning, so that the blocking disk can be pressed against the mounting block two to prevent the moving rod from detaching from the mounting block two; at the same time, adjusting the position of the blocking disk and the blocking nut can also adjust the distance of the moving rod when it moves up, thereby adjusting the distance of the reciprocating swing, thereby further improving the cooling effect on the metal and the drill bit.

[0016] Optionally, a protection component for protecting the spring member is provided on the second mounting block, and the protection component includes: A protective sleeve 1, arranged on the mounting block 1; The protective sleeve 2 is arranged on the mounting block 2, and the protective sleeve 1 is slidably arranged in the protective sleeve 2 so that the spring part is located inside the protective sleeve 1 and the protective sleeve 2 for protection.

[0017] By adopting the above technical solution, protective sleeve one is slidably inserted into protective sleeve two, so that it can avoid the position when the spray assembly swings back and forth, and at the same time, the spring part is located inside the two, so that the probability of the spring part being damaged by coolant or external air impurities is reduced while achieving reciprocating swing, thereby reducing the safety risks in the processing process and improving the processing quality of the metal.

[0018] Optionally, the spring member is formed by at least two spring monomers which are sleeved on the moving rod and are vertically stacked and connected in series.

[0019] By adopting the above technical solution, multiple spring monomers are connected in series, so that the deformation amount can be increased under the same force, that is, the movement amount of the moving rod and the spray assembly when they move back and forth is increased, thereby further improving the cooling effect, reducing the safety risks in the processing process, and improving the processing quality of the metal. At the same time, a single spring monomer can be replaced, thereby reducing the probability of replacing the entire spring component. Therefore, the spring can be replaced as early as possible while saving costs, thereby saving costs while also improving the cooling effect on the metal and the drill bit.

[0020] Optionally, the spray assembly includes: A liquid infusion pipe, arranged on the movable seat and used for inputting cooling liquid; A spray pipe, disposed on the cooling seat and used for spraying cooling liquid toward the drill bit; The telescopic tube is arranged on the infusion tube and the spraying tube and can be telescopic.

[0021] By adopting the above technical solution, the cooling seat drives the spray pipe to move, and the movable seat drives the infusion pipe to move. When the cooling seat and the movable seat are displaced relative to each other, a relative displacement occurs between the spray pipe and the infusion pipe. Therefore, the telescopic tube can be buffered here, so that the spray coolant can be sprayed when the spray pipe moves back and forth, thereby improving the cooling effect, reducing the safety risks in the processing process, and improving the processing quality of the metal.

[0022] Optionally, the cooling mechanisms are arranged in a circular array around the drill bit axis and are located at different heights. The cooling mechanism located at the lowest position sprays coolant toward the drill bit tip and the positions of the coolant sprayed by the other cooling mechanisms gradually become higher.

[0023] By adopting the above technical solution, the cooling effect is reduced due to the limited spraying range of a spray assembly. However, if multiple spray assemblies are involved in the vertical direction at the same position, the multiple spray assemblies need to swing back and forth in the vertical direction. Therefore, in order to reduce the risk of collision between two adjacent spray assemblies when they move back and forth vertically, the distance between the two adjacent spray assemblies needs to be designed to be larger, which will also reduce the cooling effect.

[0024] Therefore, by arranging multiple cooling mechanisms in a circular array around the drill bit and at different heights, the multiple cooling mechanisms will not interfere with each other when moving vertically back and forth, so that the distance between two adjacent cooling mechanisms can be suitable for the requirements and will not be too large, thereby further improving the cooling effect, reducing safety risks during the processing process, and improving the processing quality of the metal.

[0025] Optionally, two adjacent cooling seats are connected to each other via a connecting piece so that a plurality of cooling mechanisms can swing back and forth simultaneously.

[0026] By adopting the above technical solution, multiple cooling mechanisms are formed into a whole through the connecting parts, so that the deformations of multiple cooling mechanisms are superimposed on each other, thereby increasing the reciprocating distance of the spray assembly, thereby further improving the cooling effect.

[0027] Optionally, each of the movable seats is provided with an air jet pipe for jetting air toward the drill bit, and the contact point between the gas jetted from the air jet pipe and the drill bit is located above the contact point between the liquid and the drill bit.

[0028] By adopting the above technical solution, the gas and liquid spraying cooperate with each other, which can further improve the cooling effect, reduce the safety risks in the processing process, and improve the processing quality of the metal.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. The speed of the moving seat changes as the drill speed increases, decreases, and retracts. Under the action of inertia and elastic mechanism, the cooling seat and the spray assembly continue to swing back and forth, causing the spray position of the spray assembly to change, thereby increasing the spray area and reducing the probability of not being able to spray at the processing position. In addition, the retraction of the drill also makes it easier for the coolant to flow into the hole, thereby further improving the cooling effect on the metal and the drill, reducing the safety risks during the processing, and improving the processing quality of the metal.

[0030] 2. By applying an extrusion force to the spring part, compared with the case where a pulling force is applied to the spring part, the probability of damage or even failure of the spring part can be further reduced by applying an extrusion force to the spring part. Furthermore, the two ends of the spring do not need to be welded, thereby reducing the probability of the elastic force of the spring part being reduced due to welding, further improving the cooling effect on the metal, reducing the safety risks during the processing, and improving the processing quality of the metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the cooling equipment; Figure 2 It is a partial structural diagram of the cooling equipment, mainly showing the cooling mechanism and protective components, and cutting the side walls of protective sleeve one and protective sleeve two.

[0032] Figure numerals: 1. movable seat; 11. jet pipe; 12. mounting plate; 13. drill bit; 2. elastic mechanism; 21. mounting block one; 22. mounting block two; 23. movable rod; 24. spring member; 25. blocking assembly; 26. blocking disk; 27. blocking nut; 3. cooling mechanism; 31. cooling seat; 32. vertical section; 33. horizontal section; 4. spray assembly; 41. infusion tube; 42. spray tube; 43. telescopic tube; 5. protective assembly; 51. protective cover one; 52. protective cover two. DETAILED DESCRIPTION

[0033] The present application is described in further detail below.

[0034] The embodiment of the present application discloses a cooling device for drilling processing.

[0035] Reference Figure 1 The cooling equipment for drilling processing includes a movable seat 1 for mounting a drill bit 13 and a cooling mechanism 3. The drill bit 13 is vertically rotatably mounted on the lower surface of the movable seat 1, and a driving structure for driving the drill bit 13 to rotate is arranged in the movable seat 1. This driving structure is a prior art and will not be described in detail here. The cooling mechanism 3 is arranged on the movable seat 1 and is used for spraying cooling toward the drill bit 13.

[0036] A plurality of cooling mechanisms 3 are arranged in a circular array around the axis of the drill bit 13, and the contact point heights of the coolant sprayed by the plurality of cooling mechanisms 3 and the drill bit 13 gradually change. The coolant sprayed by the cooling mechanism 3 located at the lowest point contacts the tip of the drill bit 13, and the positions of the coolant sprayed by the other plurality of cooling mechanisms 3 gradually become higher, so that the coolant sprayed by the cooling mechanism 3 can cover more positions of the drill bit 13; a plurality of vertically downward mounting plates 12 are arranged in a circular array around the axis of the drill bit 13 on the lower surface of the movable seat 1, and the plurality of cooling mechanisms 3 are respectively arranged on the plurality of mounting plates 12.

[0037] Reference Figure 1 and Figure 2 The cooling mechanism 3 includes a cooling seat 31 and a spray assembly 4. The cooling seat 31 includes a vertical section 32 and a horizontal section 33. The vertical section 32 is in a vertical state and is located between the drill bit 13 and the mounting plate 12. The horizontal section 33 is integrally arranged at the bottom of the vertical section 32 and is away from the side of the mounting plate 12 and is located below the mounting plate 12. The cooling seat 31 is arranged on the movable seat 1 through the elastic mechanism 2, so that the cooling seat 31 can move along the sliding direction of the movable seat 1 when subjected to force.

[0038] The elastic mechanism 2 includes a mounting block 1 21, a mounting block 22, a moving rod 23, a spring member 24, and a blocking assembly 25. The mounting block 1 21 is integrally arranged on the top of the vertical section 32 and on the side wall close to the mounting plate 12. The mounting block 22 is integrally arranged on the bottom of the mounting plate 12 and on the side wall close to the vertical section 32. The mounting block 1 21 and the mounting block 2 22 are both in a horizontal state.

[0039] The moving rod 23 is fixedly mounted on the lower surface of the mounting block 1 21, and the moving rod 23 vertically slides through the mounting block 22 and extends to the bottom of the mounting block 22; the spring member 24 is formed by at least two spring monomers which are sleeved on the sliding rod and vertically stacked and placed in series. Under the action of gravity, multiple spring monomers are pressed against the opposite side walls of the mounting block 1 21 and the mounting block 22, and the data of the spring monomers are designed according to requirements.

[0040] The blocking assembly 25 is arranged on the moving rod 23 and is used to prevent the moving rod 23 from detaching from the mounting block 22. The blocking assembly 25 includes a blocking plate 26 and a blocking nut 27. The blocking plate 26 is threadedly connected to the moving rod 23 and is located below the mounting block 22; the blocking nut 27 is threadedly connected to the moving rod 23 and presses against the blocking plate 26 for positioning. Therefore, when the moving rod 23 moves upward, it drives the blocking plate 26 to abut against the mounting block 22, thereby preventing the moving rod 23 from detaching from the mounting block 22.

[0041] By adjusting the position of the blocking nut 27 and the blocking plate 26, the upward movement distance of the moving rod 23 can also be adjusted. At the same time, after removing the blocking nut 27 and the blocking plate 26 in turn, the moving rod 23 can also be removed from the mounting block 22 to replace multiple spring monomers. After the replacement is completed, the moving rod 23 is passed through the multiple spring monomers and the mounting block 22, and finally the blocking plate 26 and the blocking nut 27 are threadedly connected to the moving rod 23 in turn, so that the blocking nut 27 is pressed against the blocking plate 26 for positioning.

[0042] The spray assembly 4 is arranged on the cooling seat 31 and is used to spray coolant toward the drill bit 13. The movable seat 1 drives the drill bit 13 to rotate and the spray assembly 4 starts to spray coolant. The movable seat 1 drives the drill bit 13 to move down quickly to approach the metal, and then the drill bit 13 moves down slowly and continues to approach the metal surface for drilling. At the same time, the drill bit 13 moves back quickly several times during the drilling process to retract the tool. Retracting the tool can remove the debris in the hole and allow the coolant to enter. Then the drill bit 13 moves up quickly to above the metal, and then continues to move to other positions of the metal to continue to repeat the above actions to process the hole.

[0043] When the movable seat 1 moves, it drives the cooling seat 31, the elastic mechanism 2 and the spray assembly 4 to move downward at the same time. When the speed of the movable seat 1 suddenly slows down, the cooling seat 31, the spray assembly 4 and the elastic mechanism 2 continue to move downward quickly, so that the mounting block 21 squeezes the spring member 24, and then the spring member 24 drives the mounting block 21 and the spray assembly 4 to move upward under the action of the elastic force, thereby realizing a vertical swing of the spray assembly 4 for a cycle, and then the mounting block 21 and the spring member 24 act to make the vertical swing continue, and in this way, the spray assembly 4 realizes the vertical reciprocating swing until the mounting block 21 maintains a stable state under the action of gravity; at the same time, when the drill bit 13 is retracted, the spray assembly 4 continues to swing back and forth vertically, thereby increasing the range of the spray assembly 4 spraying coolant, improving the cooling effect on the metal and the drill bit 13, reducing the safety risks in the processing process, and improving the processing quality of the metal.

[0044] When the moving seat 1 suddenly moves up at a high speed, the cooling seat 31, the spray assembly 4 and the elastic mechanism 2 continue to remain in place, so that the mounting block 22 moves up quickly to squeeze the spring member 24. After being squeezed, the spring member 24 pushes the mounting block 1 21 and the spray assembly 4 to move up, thereby also causing the spray assembly 4 to swing back and forth vertically, thereby reducing the safety risks in the processing process and improving the processing quality of the metal.

[0045] The spray assembly 4 includes an infusion pipe 41, a spray pipe 42 and a telescopic pipe 43. The infusion pipe 41 is fixedly installed on the movable seat 1 and is used to output the coolant; the spray pipe 42 is fixedly installed on the horizontal section 33, and the nozzle of the spray pipe 42 faces the drill bit 13. The nozzle of the spray pipe 42 located at the lowest point faces the tip of the drill bit 13, and the nozzles of other spray pipes 42 gradually rise, so that the coolant can cover more positions on the drill bit 13, and when the tip of the drill bit 13 drills into the metal, part of the nozzles of the spray pipe 42 can still be located above the metal surface, and the coolant can continue to spray onto the metal surface. When the drill bit 13 is retracted, the coolant can continue to flow into the hole for cooling.

[0046] The two ends of the telescopic tube 43 are connected to the two ends of the infusion tube 41 and the spray pipe 42, and the telescopic tube 43 is in a telescopic state, so that when the spray pipe 42 swings back and forth vertically, the telescopic tube 43 can avoid the swing of the spray pipe 42. The horizontal section 33 is fixedly installed with an injection pipe 11 extending above the bottom of the spray pipe 42. The injection pipe 11 is used to spray gas, and the contact point between the gas and the drill bit 13 is located above the corresponding contact point between the coolant and the drill bit 13.

[0047] Multiple horizontal sections 33 are interconnected by connecting rods, so that the horizontal sections 33 at multiple locations can be superimposed by vertically reciprocating swings, thereby increasing the spray range of the coolant, and the fixed rod on the lower surface of the movable seat 1 is equipped with an outlet pipe made of a retractable material, and the outlet pipe is used to output gas, and the material can be soft plastic. The jet pipes 11 located on the multiple horizontal sections 33 are connected to each other and fixedly connected to the outlet pipe, so that the multiple jet pipes 11 can spray gas for cooling, and the collision of gas and liquid can further improve the cooling effect on the tool.

[0048] A protective component 5 for protecting the spring member 24 is arranged on the mounting block 22, and the protective component 5 includes a protective sleeve 1 51 and a protective sleeve 2 52. The protective sleeve 1 51 is fixedly mounted on the lower surface of the mounting block 21, and the protective sleeve 2 52 is fixedly mounted on the upper surface of the mounting block 22 and coincides with the axes of the protective sleeve 1 51 and the moving rod 23. The protective sleeve 1 51 is slidably arranged on the inner wall of the protective sleeve 2 52, so as to realize the mutual movement between the mounting block 1 21 and the mounting block 2 22 and protect the spring member 24 at the same time.

[0049] The working principle of the embodiment of the present application is as follows: The movable seat 1 drives the drill bit 13 to rotate, and at the same time, the spray pipe 42 starts to spray coolant and the jet pipe 11 sprays gas. The movable seat 1 drives the drill bit 13 to move down quickly and approach the metal, and then the drill bit 13 moves down slowly and continues to approach the metal surface for drilling. At the same time, the drill bit 13 moves back quickly several times during the drilling process to retract the tool, and then the drill bit 13 moves up quickly to above the metal, and then continues to move to other positions of the metal and continues to repeat the above actions to process the hole.

[0050] When the speed of the moving seat 1 suddenly slows down and speeds up, the multiple spray pipes 42 and the multiple air injection pipes 11 swing back and forth vertically, and at the same time, the drill bit 13 can also be retracted to make the multiple spray pipes 42 and the multiple air injection pipes 11 swing back and forth vertically, thereby increasing the spray range of the coolant on the metal and the drill bit 13, and also increasing the probability of the coolant entering the hole, thereby greatly improving the cooling effect on the metal and the drill bit 13, reducing the safety risks in the processing process, and improving the processing quality of the metal.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling device for drilling, characterized in that: It comprises a movable seat (1) for mounting a drill bit (13) and driving the drill bit (13) to move, and also comprises a cooling mechanism (3) arranged on the movable seat (1), wherein the cooling mechanism (3) comprises: A cooling seat (31) is arranged on the movable seat (1) via an elastic mechanism (2) and slides along a sliding direction of the movable seat (1) when subjected to force; The spray assembly (4) is arranged on the cooling seat (31) and is used to spray cooling liquid toward the drill bit (13). When the moving speed of the drill bit (13) driven by the movable seat (1) changes, the cooling seat (31) swings back and forth under the action of inertia and elastic force.

2. A cooling device for drilling according to claim 1, characterized in that: The elastic mechanism (2) comprises: A mounting block (21) is disposed on a cooling seat (31); The second mounting block (22) is disposed on the movable seat (1) and is located below the first mounting block (21); A moving rod (23) is arranged on the first mounting block (21) and is slidably arranged on the second mounting block (22); A spring member (24) is sleeved on the moving rod (23) and has two ends pressed against the first mounting block (21) and the second mounting block (22) for positioning; The blocking assembly (25) is arranged on the moving rod (23) and is used to block the moving rod (23) from being separated from the second mounting block (22).

3. A cooling device for drilling according to claim 2, characterized in that: The blocking component (25) comprises: A blocking plate (26) is threadedly connected to the moving rod (23), and when the moving rod (23) moves upward, the blocking plate (26) is driven to abut against the second mounting block (22) to prevent the moving rod (23) from being separated from the second mounting block (22); The blocking nut (27) is threadedly connected to the moving rod (23) and pressed against the lower surface of the blocking plate (26) for positioning.

4. A cooling device for drilling according to claim 2, characterized in that: The second mounting block (22) is provided with a protection component (5) for protecting the spring component (24), and the protection component (5) comprises: A protective sleeve 1 (51) is arranged on the mounting block 1 (21); The second protective sleeve (52) is arranged on the second mounting block (22), and the first protective sleeve (51) is slidably inserted into the second protective sleeve (52) so that the spring member (24) is located inside the first protective sleeve (51) and the second protective sleeve (52) for protection.

5. The cooling device for drilling according to claim 2, characterized in that: The spring member (24) is formed by at least two spring monomers which are sleeved on the moving rod (23) and are stacked vertically and connected in series.

6. A cooling device for drilling according to claim 1, characterized in that: The spray assembly (4) comprises: A liquid infusion tube (41), arranged on the movable seat (1) and used for inputting cooling liquid; A spray pipe (42) disposed on the cooling seat (31) and used for spraying cooling liquid toward the drill bit (13); The telescopic tube (43) is arranged on the infusion tube (41) and the spray tube (42) and is telescopic.

7. The cooling device for drilling according to claim 1, characterized in that: The cooling mechanisms (3) are arranged in a circular array around the axis of the drill bit (13) and are located at different heights. The cooling mechanism (3) located at the lowest position sprays cooling liquid toward the tip of the drill bit (13) and causes the positions of the cooling liquid sprayed by the other cooling mechanisms (3) to gradually become higher.

8. A cooling device for drilling according to claim 7, characterized in that: Two adjacent cooling seats (31) are connected to each other via a connecting piece, and the plurality of cooling mechanisms (3) are caused to swing back and forth simultaneously.

9. A cooling device for drilling according to claim 8, characterized in that: Each of the movable seats (1) is provided with an air jet pipe (11) for jetting air toward the drill bit (13), and the contact point between the gas jetted from the air jet pipe (11) and the drill bit (13) is located above the contact point between the liquid and the drill bit (13).

Images