A cooling structure for processing PCB milling cutter

Abstract

The utility model discloses a cooling structure for processing a PCB milling cutter, comprising a lifting component and a driving mechanism, wherein the lifting component comprises a mounting ring, a lifting cylinder and a stabilizing ring, wherein the lifting cylinder is mounted at a position between the mounting ring and the stabilizing ring, wherein the outer side of the stabilizing ring is provided with stabilizing blocks which are symmetrically distributed on the left and right sides, wherein one end of the lifting cylinder is connected with the stabilizing block, wherein the driving mechanism comprises a rotating ring, a gas storage pipe which is symmetrically distributed on the left and right sides, and a fixedly connected micro-driving motor and a driving gear; gas is transported into the stabilizing ring through the gas transmission pipe, and then the gas enters the rotating ring and the gas storage pipe, and is ejected from a cooling nozzle, wherein the gas is sprayed on the surface of a cutter head of a drill bit and a milling cutter, wherein the micro-driving motor rotates the driving gear, and the driving gear drives the fixed gear, the rotating ring and the gas storage pipe to rotate, and the cooling nozzle sprays the gas on different positions of the cutter head surface of the drill bit and the milling cutter, thereby achieving the effect of taking away heat and rapidly dissipating heat and cooling.

Description

Technical Field

[0001] The utility model belongs to the technical field of milling cutter cooling devices, and in particular relates to a cooling structure for a milling cutter for processing a PCB. Background Art

[0002] In the process of milling PCB, the milling cutter needs to continuously remove the material on the workpiece, so it will be subjected to greater heat and friction during processing, causing the temperature of the milling cutter to rise. The milling cutter needs to be cooled to avoid the high temperature causing the milling cutter to become soft or weak, or even break; China's utility model authorized patent application number CN202020847548.0 discloses a milling blade and milling cutter shaft combination kit, and the milling cutter is a disclosed tool;

[0003] The milling cutter needs to be cooled during PCB processing. Common cooling methods include coolant cooling, preheating cooling, and short-time interruption cooling. The preheating cooling method is time-consuming and energy-consuming and is not often used. When the temperature of the cooling liquid in the coolant cooling method is too low, the surface of the milling cutter may be overcooled and contracted, and even cracks or cracks may appear. The short-time interruption cooling method leaves a short interval for the milling cutter during high-speed cutting to achieve the purpose of cooling. This natural cooling method will not damage the surface of the milling cutter, but the heat dissipation of the milling cutter surface is slow, and the heat on the milling cutter cannot be quickly dissipated.

[0004] When the existing milling cutter is cooled by a short-time interruption cooling method, there is a problem of slow heat dissipation on the surface of the milling cutter. For this reason, we propose a cooling structure for a milling cutter for processing PCBs. Utility Model Content

[0005] The utility model aims to provide a cooling structure for a milling cutter for processing a PCB, so as to solve the problem of slow heat dissipation on the surface of the milling cutter proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling structure for processing a PCB milling cutter, comprising a lifting assembly and a driving mechanism, the lifting assembly comprising a mounting ring, a lifting cylinder and a stabilizing ring, the lifting cylinder being installed at a position between the mounting ring and the stabilizing ring, the outer side of the stabilizing ring is provided with stabilizing blocks symmetrically distributed on the left and right, one end of the lifting cylinder is connected to the stabilizing block, the driving mechanism comprises a rotating ring, an air storage pipe symmetrically distributed on the left and right, and a fixedly connected micro-drive motor and a driving gear, the micro-drive motor is installed on the stabilizing block, the rotating ring is provided with a fixed gear, the rotating ring is sleeved on the outer side of the stabilizing ring, the air storage pipe is connected to the rotating ring, the air storage pipe is provided with a cooling nozzle, the top surface of the stabilizing ring is provided with an air supply pipe, and the inner surface of the rotating ring is provided with an integrated positioning ring.

[0007] Preferably, the centers of the mounting ring, the stabilizing ring and the rotating ring are on the same axis, the mounting ring is provided with a fixing plate fixedly connected to one end of the lifting cylinder by screws, and the inner diameter of the rotating ring is the same as the outer diameter of the stabilizing ring.

[0008] Preferably, the air storage pipe is connected to the interior of the rotating ring, the cooling nozzle is connected to the interior of the air storage pipe, the air supply pipe is connected to the interior of the stabilizing ring, and the rotating ring and the interior of the stabilizing ring are connected.

[0009] Preferably, the micro drive motor is mounted on a stabilizing block, the centers of the micro drive motor and the drive gear are on the same axis, the fixed gear is flush with the drive gear, and the fixed gear and the rotating ring are an integrated structure.

[0010] Preferably, the rotating ring is connected to the inside of the positioning ring, the positioning ring is a circular ring structure, and the cross-section of the positioning ring is a conical structure with one end wide and the other end narrow. The end of the positioning ring connected to the rotating ring is narrow, and the positioning ring is rotatably connected to the stabilizing ring.

[0011] Preferably, a mounting seat is provided on the mounting ring, and the mounting seat includes a collar, a contraction spring, a pressure ring, a limit plate, and a stabilizing sleeve and a fixing sleeve connected by threaded engagement, and the fixing sleeve is sleeved on the outside of the stabilizing sleeve.

[0012] Preferably, the ring is provided with symmetrically distributed stabilizing plates, the contraction spring and the pressure ring are sleeved on the outside of the stabilizing plate, the stabilizing plate and the limiting plate are both curved, the inner surface of the limiting plate is consistent with the outer surface of the stabilizing plate, and the limiting plate is provided with a limiting column embedded in the inside of the stabilizing plate.

[0013] Preferably, a mounting groove is provided in the hollow fixing sleeve, the limiting plate is installed in the mounting groove, the fixing sleeve and the limiting plate are screwed together by threads, and the centers of the ring, the contraction spring, the fixing sleeve and the fixing sleeve are on the same axis.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, gas is delivered into the gas delivery pipe and enters the stabilizing ring, and then the gas enters the rotating ring and the gas storage pipe and is ejected from the cooling nozzle. The gas is sprayed on the cutter head surface of the drill bit and the milling cutter, the micro drive motor rotates the drive gear, the drive gear drives the fixed gear, the rotating ring and the gas storage pipe to rotate, and the cooling nozzle sprays the gas on different positions of the cutter head surface of the drill bit and the milling cutter, so as to take away the heat and quickly dissipate the heat and cool down. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic cross-sectional structure diagram of the stabilizing ring of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view of the rotating ring of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the sleeve of the utility model;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the firm sleeve of the utility model;

[0021] In the figure: 1. mounting ring; 2. lifting cylinder; 3. stabilizing ring; 4. rotating ring; 5. gas storage pipe; 6. micro drive motor; 7. driving gear; 8. sleeve ring; 9. contraction spring; 10. pressing ring; 11. limiting plate; 12. stabilizing sleeve; 13. fixing sleeve; 31. stabilizing block; 32. gas pipe; 41. fixing gear; 42. positioning ring; 51. cooling nozzle; 81. stabilizing plate; 111. limiting column; 131. mounting groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figures 1 to 3The utility model provides a technical solution: a cooling structure for processing a PCB milling cutter, including a lifting component and a driving mechanism, the lifting component including a mounting ring 1, a lifting cylinder 2 and a stabilizing ring 3, the technical principle of the lifting cylinder 2 is public, and it is a commonly used device, and this application will not make a detailed description, the lifting cylinder 2 is installed at a position between the mounting ring 1 and the stabilizing ring 3, the outer side of the stabilizing ring 3 is provided with a stabilizing block 31 symmetrically distributed on the left and right, the stabilizing block 31 is welded and connected to the stabilizing ring 3, one end of the lifting cylinder 2 is connected to the stabilizing block 31, the mounting ring 1 is installed on the tool rod (or installed on a cylindrical tool holder for fixing the drill bit tool rod), the lifting cylinder 2 is running, and the lifting cylinder 2 plays a role in driving the position change of the stabilizing ring 3, so that the gas storage pipe 5 is close to the cutter head of the drill bit milling cutter, and the externally disclosed inflation device, such as an air pump, supplies gas into the gas supply pipe 32 into the stabilizing ring 3, and then the gas enters the rotating ring 4 and the gas storage pipe 5, and is ejected from the cooling nozzle 51, the driving mechanism includes a rotating ring 4, a left The right symmetrically distributed gas storage pipe 5, and the fixedly connected micro-drive motor 6 and drive gear 7, the rotating ring 4 rotates with the axis of the stabilizing ring 3 as the axis, the drive gear 7 is meshed and connected with the fixed gear 41, the micro-drive motor 6 rotates the drive gear 7, the drive gear 7 drives the fixed gear 41, the rotating ring 4 and the gas storage pipe 5 to rotate, and the cooling nozzle 51 sprays gas on the surface of the drill bit and the milling cutter to take away the heat and dissipate the heat; the micro-drive motor 6 is installed on the stabilizing block 31, the micro-drive motor 6 is screwed and connected to the stabilizing block 31 by screws, the rotating ring 4 is provided with a fixed gear 41, the fixed gear 41 is welded and connected to the rotating ring 4, the rotating ring 4 is sleeved on the outside of the stabilizing ring 3, the gas storage pipe 5 is connected to the rotating ring 4, the gas storage pipe 5 is provided with a cooling nozzle 51, the cooling nozzles 51 are equidistantly distributed, the top surface of the stabilizing ring 3 is provided with a gas supply pipe 32, the inner surface of the rotating ring 4 is provided with an integrated positioning ring 42, and the positioning ring 42 serves to connect the rotating ring 4 and the stabilizing ring 3.

[0025] In this embodiment, the centers of the mounting ring 1, the stabilizing ring 3 and the rotating ring 4 are on the same axis. The mounting ring 1 and the stabilizing ring 3 are accurately installed and on the same axis. The mounting ring 1 is provided with a fixing plate fixedly connected to one end of the lifting cylinder 2 by screws. The lifting cylinder 2 plays a role in adjusting the position of the stabilizing ring 3. The inner diameter of the rotating ring 4 is the same as the outer diameter of the stabilizing ring 3. The air storage pipe 5 is connected to the interior of the rotating ring 4, the cooling nozzle 51 is connected to the interior of the air storage pipe 5, the air supply pipe 32 is connected to the interior of the stabilizing ring 3, the rotating ring 4 and the stabilizing ring 3 are connected, and air is supplied to the air supply pipe 32 into the stabilizing ring 3. Then the gas enters the rotating ring 4 and the air storage pipe 5, and is ejected from the cooling nozzle 51. The gas is sprayed on the surface of the cutter head of the drill bit and the milling cutter, so as to take away the heat and dissipate the heat and cool down.

[0026] In this embodiment, the micro-drive motor 6 is installed on the stabilizing block 31, the center of the micro-drive motor 6 and the drive gear 7 are on the same axis, the fixed gear 41 is flush with the drive gear 7, the fixed gear 41 and the rotating ring 4 are an integral structure, the rotating ring 4 is connected to the inside of the positioning ring 42, and the gas is transported into the gas pipe 32 to enter the stabilizing ring 3, and then the gas enters the rotating ring 4 and the gas storage pipe 5, which is conducive to the smooth flow of gas. The positioning ring 42 is a circular ring structure, and the cross-section of the positioning ring 42 is a conical structure with one end wide and the other end narrow. The end of the positioning ring 42 connected to the rotating ring 4 is narrow, and the positioning ring 42 is rotatably connected to the stabilizing ring 3, and the gas enters the rotating ring 4 from the stabilizing ring 3.

[0027] To summarize, gas is supplied to the gas pipe 32 and enters the stabilizing ring 3, and then enters the rotating ring 4 and the gas storage pipe 5, and is ejected from the cooling nozzle 51. The gas is sprayed on the surface of the drill bit and the milling cutter head. The micro drive motor 6 rotates the drive gear 7, and the drive gear 7 drives the fixed gear 41, the rotating ring 4 and the gas storage pipe 5 to rotate. The cooling nozzle 51 sprays gas on different positions of the surface of the drill bit and the milling cutter head to achieve the effect of taking away heat and dissipating heat and cooling.

[0028] Example 2

[0029] See also Figures 1 to 5 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment, and the difference is that a mounting seat is provided on the mounting ring 1, and the mounting seat includes a collar 8, a contraction spring 9, a pressure ring 10, a limit plate 11, and a stable sleeve 12 and a stable sleeve 13 connected by threaded engagement. The stable sleeve 13 is sleeved on the outside of the stable sleeve 12, and the stable sleeve 12 is fixed on the knife rod by screws. Then, the collar 8 that penetrates the mounting ring 1, the contraction spring 9, and the pressure ring 10 is sleeved on the outside of the knife rod, and then the pressure ring 10 is moved to shrink the contraction spring 9, and the limit plate 11 is attached to the outside of the collar 8, and the limit column 111 penetrates One end of the stabilizing plate 81 is embedded in the knife rod, and the fixing sleeve 13 is rotated. The fixing sleeve 13 is connected to the limit plate 11 through a threaded connection to realize the installation of the mounting ring 1. The installation process of the mounting ring 1 is simple and easy to disassemble and assemble. The ring 8 is provided with symmetrically distributed stabilizing plates 81, and the ring 8 is welded to the stabilizing plate 81. The contraction spring 9 and the pressure ring 10 are sleeved on the outside of the stabilizing plate 81. The stabilizing plate 81 and the limit plate 11 are both curved in shape. The inner surface of the limit plate 11 is consistent with the outer surface of the stabilizing plate 81. The limit plate 11 is provided with a limit column 111 embedded in the stabilizing plate 81, and the limit column 111 is welded to the limit plate 11.

[0030] In this embodiment, a mounting groove 131 is provided in the hollow fixing sleeve 13, and the limiting plate 11 is installed in the mounting groove 131. The fixing sleeve 13 is screwed together with the limiting plate 11 through threads, and the centers of the ring 8, the contraction spring 9, the fixing sleeve 12 and the fixing sleeve 13 are on the same axis. The installation process of the mounting ring 1 is simple and easy to disassemble and assemble.

[0031] To sum up, the collar 8 and the stabilizing sleeve 12 are installed on the outside of the arbor of the drill bit tool (or installed on a cylindrical tool holder that fixes the drill bit arbor), the limiting column 111 passes through one end of the stabilizing plate 81 and is embedded in the arbor, and the fixing sleeve 13 is rotated. The fixing sleeve 13 is connected to the limiting plate 11 through a threaded connection to realize the installation of the mounting ring 1. The installation process of the mounting ring 1 is simple and easy to disassemble and assemble.

[0032] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling structure for a PCB milling cutter, comprising a lifting assembly and a driving mechanism, characterized in that: The lifting assembly comprises a mounting ring (1), a lifting cylinder (2) and a stabilizing ring (3); the lifting cylinder (2) is mounted between the mounting ring (1) and the stabilizing ring (3); a stabilizing block (31) symmetrically distributed on the left and right is provided on the outer side of the stabilizing ring (3); one end of the lifting cylinder (2) is connected to the stabilizing block (31); the driving mechanism comprises a rotating ring (4), an air storage pipe (5) symmetrically distributed on the left and right, and a fixedly connected micro-drive motor (6) and a driving gear (7); the micro-drive motor (6) is mounted on the stabilizing block (31); a fixed gear (41) is provided on the rotating ring (4); the rotating ring (4) is sleeved on the outer side of the stabilizing ring (3); the air storage pipe (5) is connected to the rotating ring (4); a cooling nozzle (51) is provided on the air storage pipe (5); an air supply pipe (32) is provided on the top surface of the stabilizing ring (3); and an integral positioning ring (42) is provided on the inner surface of the rotating ring (4).

2. The cooling structure for a PCB milling cutter according to claim 1, characterized in that: The centers of the mounting ring (1), the stabilizing ring (3) and the rotating ring (4) are located on the same axis; the mounting ring (1) is provided with a fixing plate fixedly connected to one end of the lifting cylinder (2) by screws; the inner diameter of the rotating ring (4) is the same as the outer diameter of the stabilizing ring (3).

3. The cooling structure for a PCB milling cutter according to claim 1, characterized in that: The gas storage pipe (5) is connected to the interior of the rotating ring (4), the cooling nozzle (51) is connected to the interior of the gas storage pipe (5), the gas delivery pipe (32) is connected to the interior of the stabilizing ring (3), and the rotating ring (4) and the stabilizing ring (3) are connected to each other.

4. The cooling structure for a PCB milling cutter according to claim 1, characterized in that: The micro drive motor (6) is mounted on a stabilizing block (31); the centers of the micro drive motor (6) and the drive gear (7) are on the same axis; the fixed gear (41) is flush with the drive gear (7); and the fixed gear (41) and the rotating ring (4) are an integrated structure.

5. The cooling structure for a PCB milling cutter according to claim 1, characterized in that: The rotating ring (4) is internally connected to the positioning ring (42); the positioning ring (42) is a circular ring structure, and the cross section of the positioning ring (42) is a conical structure with one end wide and the other end narrow; the end of the positioning ring (42) connected to the rotating ring (4) is narrow, and the positioning ring (42) is rotatably connected to the stabilizing ring (3).

6. The cooling structure for a PCB milling cutter according to claim 1, characterized in that: The mounting ring (1) is provided with a mounting seat, and the mounting seat comprises a sleeve ring (8), a contraction spring (9), a pressure ring (10), a limit plate (11), and a stabilizing sleeve (12) and a fixing sleeve (13) connected by threaded engagement, wherein the fixing sleeve (13) is sleeved on the outside of the stabilizing sleeve (12).

7. The cooling structure for a PCB milling cutter according to claim 6, characterized in that: The sleeve ring (8) is provided with symmetrically distributed stabilizing plates (81), the contraction spring (9) and the pressure ring (10) are sleeved on the outside of the stabilizing plate (81), the stabilizing plate (81) and the limiting plate (11) are both curved, the inner surface of the limiting plate (11) is consistent with the outer surface of the stabilizing plate (81), and the limiting plate (11) is provided with a limiting column (111) embedded in the inside of the stabilizing plate (81).

8. The cooling structure for a PCB milling cutter according to claim 7, characterized in that: The hollow fixing sleeve (13) is provided with a mounting groove (131), the limiting plate (11) is installed in the mounting groove (131), the fixing sleeve (13) and the limiting plate (11) are screwed together by threads, and the centers of the ring (8), the contraction spring (9), the fixing sleeve (12) and the fixing sleeve (13) are on the same axis.

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