Numerical control tool cooling mechanism for inner hole machining

Abstract

The utility model relates to the field of numerical control tools, in particular to a numerical control tool cooling mechanism used for inner hole machining, which comprises a numerical control tool seat, a main body used for being connected with inner hole machining equipment, a manual telescopic frame and a fixed knob arranged below the numerical control tool seat and used for adjusting the height position of a spray head, and the outer part of the manual telescopic frame penetrates through the fixed knob. The numerical control tool cooling mechanism is provided with the manual telescopic frame, the rotating shaft, the cooling plate, the telescopic air cylinder, the outer pipe clamp and the cooling spray head, and when the numerical control tool cooling mechanism is used in the inner hole machining process, the numerical control tool can be cooled according to a current workpiece for inner hole machining, the machining technology and the length and angle of the used numerical control tool; the length of the manual telescopic frame is adjusted through the fixing rotary knob, the cooling spray head installed below the cooling plate is flush with the numerical control tool, then the cooling plate is driven by stretching and retracting of the telescopic air cylinder to conduct angle adjustment on the manual telescopic frame, and the cooling spray head can be better aligned with the numerical control tool.

Description

Technical Field

[0001] The utility model relates to the field of numerical control tools, and particularly relates to a cooling mechanism for a numerical control tool used for internal hole machining. Background Art

[0002] Numerical control tools are tools used for cutting machining in mechanical manufacturing, also known as cutting tools. Numerical control tools not only refer to cutting blades, but also include accessories such as tool shanks and tool holders. In a broad sense, cutting tools cover cutting tools and grinding tools. According to the tool structure, numerical control tools can be divided into integral type, welded type, machine-clamped type and special types. For internal hole machining of workpieces, boring tools, integral reamers, arrow grinding tools, etc. are generally selected. When performing internal hole machining, a large amount of frictional heat will be generated between the tool and the workpiece, resulting in an increase in the temperature of the cutting area. Excessive temperature will affect the hardness and wear resistance of the tool, thereby reducing its cutting performance and service life. This requires the use of a cooling mechanism for numerical control tools.

[0003] After retrieval, a mechanical tool cooling device for a numerical control boring machine with a publication number of CN211101727U specifically discloses a mechanical tool cooling device for a numerical control boring machine, including a water tank and a machine case. A connecting piece is arranged on the upper surface of the machine case, and the connecting piece is connected to the power mechanism of an external numerical control boring machine. A first motor is arranged on the machine case, and the output shaft of the first motor passes through the lower surface of the machine case and is connected to a drill bit through a coupling. A driving mechanism is arranged inside the machine case, and the driving mechanism is connected to a first cooling mechanism. In this mechanical tool cooling device for a numerical control boring machine, the boring drill is cooled by the second cooling mechanism arranged obliquely, so that the cooling water flows to the drill bit for effective cooling. At the same time, the driving mechanism drives the first cooling mechanism to rotate to cool the parts to be machined more completely. Whether it is pre-cooling before machining or rapid cooling after machining, the work efficiency can be improved, and the operation is simple and the use is convenient.

[0004] During the use of the existing numerical control tool cooling mechanism, since different numerical control tools are required for internal hole machining of different workpieces, and the numerical control tool cooling mechanism simply sprays cooling water fixedly outside the tool, it cannot meet the cooling work of different numerical control tools at different angles. Moreover, the method for adjusting the angle of the numerical control tool cooling mechanism is lacking in the above comparative case. In this way, the cooling range of the numerical control tool is limited after long-term use, and the cooling effect on the numerical control tool is also restricted, thereby reducing the service life of the tool in internal hole machining.

[0005] Therefore, it is very necessary to invent a cooling mechanism for a numerical control tool used for internal hole machining to solve the above problems. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a numerical control tool cooling mechanism for internal hole machining. Through a manual telescopic frame, a rotating shaft, a cooling plate, a telescopic cylinder, an outer pipe clamp, and a cooling nozzle, this numerical control tool cooling mechanism not only meets the cooling requirements of different numerical control tools during internal hole machining, but also the cooling nozzle can adjust the up and down angles to expand the spraying range of the entire coolant, ensuring the cooling effect during the machining of the numerical control tool, eliminating the limitations of the cooling range of the numerical control tool and the cooling effect on the numerical control tool. The good cooling effect prolongs the service life of the tool during internal hole machining, so as to solve the problem that in the prior art, during the use of the numerical control tool cooling mechanism, since different numerical control tools are required for internal hole machining of different workpieces, and the numerical control tool cooling mechanism simply fixes and sprays cooling water outside the tool, it cannot meet the cooling requirements of different numerical control tools at different angles. Moreover, in the above comparative cases, there is a lack of a method to adjust the angle of the numerical control tool cooling mechanism. In this way, after long-term use, the cooling range of the numerical control tool is limited, and the cooling effect on the numerical control tool is also restricted, thereby reducing the service life of the tool during internal hole machining.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A numerical control tool cooling mechanism for internal hole machining, including a numerical control tool holder, a main body for connecting with internal hole machining equipment;

[0008] A manual telescopic frame is arranged below the numerical control tool holder, used to adjust the height position of the nozzle. A fixing knob penetrates through the outside of the manual telescopic frame. An embedded groove is opened on the outside of the manual telescopic frame. A rotating shaft is arranged inside the embedded groove. A cooling plate is fixedly installed on the outside of the rotating shaft. A telescopic cylinder is arranged above the cooling plate;

[0009] An outer pipe clamp is arranged on one side of the manual telescopic frame, used to restrict the cooling pipe. A cooling pipe is arranged inside the outer pipe clamp. A first clamp is fixedly installed at the bottom of the cooling plate. A fastening bolt penetrates through the outside of the first clamp. One end of the fastening bolt is movably connected to a second clamp. A cooling nozzle is arranged inside the second clamp;

[0010] A cooling cavity is arranged outside the numerical control tool holder, used to convey coolant to the nozzle. A pressurized water pump is fixedly installed on one side of the cooling cavity. A water supply pipe is fixedly installed at one end of the pressurized water pump.

[0011] Preferably, a fixing bolt penetrates through the bottom of the numerical control tool holder. One end of the fixing bolt is movably connected to a mounting seat.

[0012] Preferably, a threaded rod penetrates through the outside of the mounting seat. One end of the threaded rod is movably connected to an internal hole machining boring tool. An internal cooling liquid injection port is arranged outside the internal hole machining boring tool.

[0013] Preferably, the cooling plate is movably connected to the manual telescopic frame, and the manual telescopic frame is symmetrically arranged with respect to the central axis of the numerical control tool holder.

[0014] Preferably, the cooling pipe is fixedly connected to the cooling nozzle, and the first clamp is threadedly connected to the second clamp.

[0015] Preferably, an internal cooling port is provided outside the cooling cavity, and an internal liquid injection pipeline is fixedly installed inside the internal cooling port.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0017] The present utility model is provided with a manual telescopic frame, a rotating shaft, a cooling plate, a telescopic cylinder, an outer pipe clamp and a cooling nozzle. When using this numerical control tool cooling mechanism during the inner hole machining process, according to the workpiece and machining process for the current inner hole machining, as well as the length and angle of the numerical control tool used, the length of the manual telescopic frame can be adjusted through the fixing knob, so that the cooling nozzle installed under the cooling plate is flush with the numerical control tool. Then, the telescopic movement of the telescopic cylinder drives the cooling plate to adjust the angle on the manual telescopic frame, enabling the cooling nozzle to better align with the numerical control tool. In this way, the combined use not only satisfies the cooling work of different numerical control tools during the inner hole machining process, but also the up and down angle adjustment of the cooling nozzle expands the spraying range of the entire coolant, ensuring the cooling effect during the machining process of the numerical control tool, removing the limitations on the cooling range of the numerical control tool and the cooling effect on the numerical control tool. The good cooling effect prolongs the service life of the tool during the inner hole machining;

[0018] The present utility model is provided with an inner hole machining boring tool, an internal cooling liquid injection port, a manual telescopic frame, an outer pipe clamp, a cooling pipe, an internal cooling port and an internal liquid injection pipeline. In addition to the cooling operation of the cooling nozzle itself, when encountering a tool similar to the inner hole machining boring tool with an internal cooling hole, the internal liquid injection pipeline can be directly inserted into the internal cooling liquid injection port of the inner hole machining boring tool, so that the coolant can also flow from the inside of the numerical control tool and then flow out from the tool tip, improving the cooling effect of this numerical control tool cooling mechanism on the tool. At the same time, the outer pipe clamp outside the manual telescopic frame can restrict the cooling pipe, reducing the influence of the cooling pipe on the numerical control tool during the inner hole machining process and ensuring the normal use of the numerical control tool. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 Schematic diagram of the boring tool structure for inner hole machining of the present utility model;

[0022] Figure 3 Schematic diagram of the cooling plate structure of the present utility model;

[0023] Figure 4 Schematic diagram of the cooling nozzle structure of the present utility model;

[0024] Figure 5 Schematic diagram of the cooling cavity structure of the present utility model.

[0025] Explanation of reference numerals:

[0026] 1. CNC tool holder; 2. Fixed bolt; 3. Mounting seat; 4. Threaded rod; 5. Boring tool for inner hole machining; 6. Inner cooling liquid injection port; 7. Manual telescopic frame; 8. Fixed knob; 9. Embedded groove; 10. Rotating shaft; 11. Cooling plate; 12. Telescopic cylinder; 13. Outer pipe clamp; 14. Cooling pipe; 15. First clamp; 16. Fastening bolt; 17. Second clamp; 18. Cooling nozzle; 19. Cooling cavity; 20. Pressurized water pump; 21. Water supply pipe; 22. Inner cooling port; 23. Inner liquid injection pipe. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0028] The present utility model provides a CNC tool cooling mechanism for inner hole machining as shown in Figures 1-5 Figure, which includes a CNC tool holder 1, a main body for connecting with inner hole machining equipment;

[0029] A manual telescopic frame 7 is arranged below the CNC tool holder 1 and is used to adjust the height position of the nozzle. The outside of the manual telescopic frame 7 is penetrated by a fixed knob 8. An embedded groove 9 is opened on the outside of the manual telescopic frame 7. A rotating shaft 10 is arranged inside the embedded groove 9. A cooling plate 11 is fixedly installed on the outside of the rotating shaft 10. A telescopic cylinder 12 is arranged above the cooling plate 11;

[0030] An outer pipe clamp 13 is arranged on one side of the manual telescopic frame 7 and is used to restrict the cooling pipe 14. The cooling pipe 14 is arranged inside the outer pipe clamp 13. A first clamp 15 is fixedly installed at the bottom of the cooling plate 11. The outside of the first clamp 15 is penetrated by a fastening bolt 16. One end of the fastening bolt 16 is movably connected to a second clamp 17. The cooling nozzle 18 is arranged inside the second clamp 17;

[0031] The cooling cavity 19 is arranged outside the CNC tool holder 1 and is used to convey coolant to the nozzle. One side of the cooling cavity 19 is fixedly installed with a pressurized water pump 20. One end of the pressurized water pump 20 is fixedly installed with a water supply pipe 21. The pressurized water pump 20 extracts coolant through the water supply pipe 21 and conveys it to the cooling nozzle 18 for spraying, meeting the cooling requirements of different CNC tools during internal hole machining. Moreover, the cooling nozzle 18 can be adjusted in the up and down angles, expanding the spraying range of the entire coolant and ensuring the cooling effect during the machining of the CNC tool.

[0032] As Figure 1 , Figure 2 and Figure 3 shown, a fixing bolt 2 penetrates through the bottom of the CNC tool holder 1. One end of the fixing bolt 2 is movably connected to a mounting seat 3. The mounting seat 3 and the fixing bolt 2 facilitate the docking and installation of the CNC tool holder 1 and different CNC tools for internal hole machining. A threaded rod 4 penetrates through the outside of the mounting seat 3. One end of the threaded rod 4 is movably connected to an internal hole machining boring tool 5. An internal cooling liquid injection port 6 is arranged outside the internal hole machining boring tool 5. Besides the cooling operation of the cooling nozzle 18 itself, when encountering tools similar to the internal hole machining boring tool 5 with internal cooling holes, the internal injection pipe 23 can be directly inserted into the internal cooling liquid injection port 6 of the internal hole machining boring tool 5, so that the coolant can also flow inside the CNC tool and then flow out from the tool tip, improving the cooling effect of the cooling mechanism of the CNC tool on the tool. The cooling plate 11 is movably connected to the manual telescopic frame 7. The manual telescopic frame 7 is symmetrically arranged with respect to the central axis of the CNC tool holder 1. The length of the manual telescopic frame 7 can be adjusted by the fixing knob 8 according to the workpiece and machining process for current internal hole machining, as well as the length and angle of the CNC tool used, so that the cooling nozzle 18 installed under the cooling plate 11 is flush with the CNC tool.

[0033] As Figure 1 , Figure 4 and Figure 5 shown, the cooling pipe 14 is fixedly connected to the cooling nozzle 18. The first clamp 15 is threadedly connected to the second clamp 17. The outer pipe clamp 13 outside the manual telescopic frame 7 can restrict the cooling pipe 14, reducing the influence of the cooling pipe 14 on the CNC tool during internal hole machining and ensuring the normal use of the CNC tool. An internal cooling port 22 is opened outside the cooling cavity 19. An internal injection pipe 23 is fixedly installed inside the internal cooling port 22. The structure of the cooling cavity 19 is simple and easy to operate. In case of a malfunction, it is also convenient for maintenance personnel to carry out maintenance in a timely manner.

[0034] The working principle of this utility model: First, connect to the external power supply, connect and install the numerical control tool holder 1 to the internal hole processing equipment. Then, select a suitable numerical control tool according to the current workpiece for internal hole processing and the processing requirements. Connect and install the internal hole processing boring tool 5 to the numerical control tool holder 1 through the threaded rod 4. Next, in addition to the cooling operation of the cooling nozzle 18 itself, when encountering a tool similar to the internal hole processing boring tool 5 with internal cooling holes, the internal liquid injection pipe 23 can be directly inserted into the internal cooling liquid injection port 6 of the internal hole processing boring tool 5, so that the cooling liquid can also flow out from the tool head after flowing inside the numerical control tool, improving the cooling effect of the cooling mechanism of the numerical control tool on the tool. Subsequently, install the cooling nozzle 18 under the cooling plate 11 through the first clamp 15, fastening bolts 16, and the second clamp 17. The outer pipe clamp 13 outside the manual telescopic frame 7 can restrict the cooling pipe 14, reducing the influence of the cooling pipe 14 on the numerical control tool during the internal hole processing and ensuring the normal use of the numerical control tool. After the preparation work is completed in this way, the length of the manual telescopic frame 7 can be adjusted by the fixing knob 8 to make the cooling nozzle 18 installed under the cooling plate 11 flush with the numerical control tool. Then, turn on the switch of the pressurized water pump 20 to let the pressurized water pump 20 supply the cooling liquid to the cooling nozzle 18, and then turn on the switch of the telescopic cylinder 12. The telescopic movement of the telescopic cylinder 12 drives the cooling plate 11 to adjust the angle on the manual telescopic frame 7, making the cooling nozzle 18 better align with the numerical control tool. This not only meets the cooling work of different numerical control tools during the internal hole processing, but also the up and down angle adjustment of the cooling nozzle 18 expands the spraying range of the entire cooling liquid, ensuring the cooling effect during the processing of the numerical control tool. Then, the internal hole processing equipment can be started to drive the numerical control tool holder 1 to rotate, and the internal hole processing boring tool 5 starts the internal hole processing work on the workpiece during the cooling process. Finally, after completing the internal hole processing work of all workpieces and the cooling work of the numerical control tool according to the above operations, turn off the switch of the telescopic cylinder 12 and turn off the switch of the pressurized water pump 20. If it is not used for a long time, cut off the external power supply. Just like this, the use process of the cooling mechanism for the numerical control tool used for internal hole processing is completed.

[0035] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A CNC tool cooling mechanism for inner hole machining, characterized in that: include A CNC tool holder (1), a main body used to be connected to an inner hole processing device; A manual telescopic frame (7) is arranged below the CNC tool holder (1) and is used to adjust the height of the nozzle. A fixed knob (8) is passed through the outside of the manual telescopic frame (7). An embedded groove (9) is provided on the outside of the manual telescopic frame (7). A rotating shaft (10) is provided inside the embedded groove (9). A cooling plate (11) is fixedly installed on the outside of the rotating shaft (10). A telescopic cylinder (12) is provided above the cooling plate (11). An outer tube clamp (13) is arranged on one side of the manual telescopic frame (7) and is used to restrict the cooling tube (14). The cooling tube (14) is arranged inside the outer tube clamp (13). A first clamp (15) is fixedly installed on the bottom of the cooling plate (11). A fastening bolt (16) penetrates the outside of the first clamp (15). One end of the fastening bolt (16) is movably connected to a second clamp (17). A cooling nozzle (18) is arranged inside the second clamp (17). A cooling cavity (19) is arranged outside the CNC tool holder (1) and is used to transport cooling liquid to the nozzle, and a pressurized water pump (20) is fixedly mounted on one side of the cooling cavity (19), and a water supply pipe (21) is fixedly mounted on one end of the pressurized water pump (20).

2. A CNC tool cooling mechanism for inner hole machining according to claim 1, characterized in that: A fixing bolt (2) passes through the bottom of the numerical control tool seat (1), and one end of the fixing bolt (2) is movably connected to a mounting seat (3).

3. A CNC tool cooling mechanism for inner hole machining according to claim 2, characterized in that: A threaded rod (4) penetrates the outside of the mounting seat (3); one end of the threaded rod (4) is movably connected to an inner hole machining boring tool (5); and an inner cooling liquid injection port (6) is provided on the outside of the inner hole machining boring tool (5).

4. A CNC tool cooling mechanism for inner hole machining according to claim 1, characterized in that: The cooling plate (11) is movably connected to the manual telescopic frame (7), and the manual telescopic frame (7) is symmetrically arranged with respect to the central axis of the numerical control tool holder (1).

5. The CNC tool cooling mechanism for inner hole machining according to claim 1, characterized in that: The cooling pipe (14) is fixedly connected to the cooling nozzle (18), and the first clamp (15) is threadedly connected to the second clamp (17).

6. A CNC tool cooling mechanism for inner hole machining according to claim 1, characterized in that: An inner cooling port (22) is provided on the outside of the cooling cavity (19), and an inner liquid injection pipe (23) is fixedly installed inside the inner cooling port (22).

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