Self-cooled milling cutter for PCB (printed circuit board) processing

Abstract

The utility model relates to the field of machining cutters, in particular to a self-cooling type PCB machining milling cutter. A self-cooling type PCB machining milling cutter comprises a milling cutter, a transmission shaft, a power source, a cover body, a circulation assembly and the like, the power source is arranged in the cover body, the transmission shaft is arranged at the lower end of the power source, the bottom of the transmission shaft extends into the milling cutter and is fixedly connected with the milling cutter, the top of the milling cutter is rotationally connected to the lower end of the cover body, and the circulation assembly used for cooling the milling cutter is arranged on the cover body. Water circulation is achieved through the water inlet pipe and the water outlet pipe, so that the milling cutter can be cooled when working, the heat dissipation effect is optimized, and the self-cooling purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the field of processing tools, in particular to a self-cooling PCB processing milling cutter. Background Art

[0002] The PCB processing milling cutter has the characteristics of high precision and high efficiency, and can realize fine processing of printed circuit boards to ensure that the geometric shape, size and surface quality of the circuit boards meet the design requirements. The PCB processing milling cutter has a high processing efficiency and can quickly and accurately complete the processing of printed circuit boards to improve production efficiency. However, during the processing, a large amount of heat is generated by friction, and when the processing time is long, the surface properties of the cutter are affected or even damaged, thus affecting the service life of the cutter. Summary of the Utility Model

[0003] In order to overcome the disadvantages of high working temperature and poor heat dissipation for a long time, a self-cooling PCB processing milling cutter is provided.

[0004] A self-cooling PCB processing milling cutter includes a milling cutter, a transmission shaft, a power source, a cover body and a circulation component. A power source is arranged inside the cover body. A transmission shaft is arranged at the lower end of the power source. The bottom of the transmission shaft extends into the milling cutter and is fixedly connected thereto. The top of the milling cutter is rotatably connected to the lower end of the cover body. A circulation component for cooling the milling cutter is arranged on the cover body.

[0005] Further, the power source can be arranged inside the cover body or externally connected.

[0006] Further, the circulation component includes a fixing block, a valve, a water inlet pipe and a water outlet pipe. A water inlet is arranged at the front end of the cover body. A water outlet is arranged at the bottom of the upper end of the cover body. Valves are arranged at the water inlet and the water outlet. One end of the water inlet pipe is connected to the bottom of the upper end of the cover body, passes through the fixing block in the middle and extends into the milling cutter. The fixing block is fixedly connected to the inner part of the lower end of the cover body. The water inlet pipe is hermetically connected to the fixing block. One end of the water outlet pipe is connected to the bottom of the lower end of the cover body, and the other end is connected to the left side of the upper end of the cover body.

[0007] Further, a refrigerator is also included. The refrigerator is fixedly connected to the right side of the upper end of the cover body, and an extension plate is arranged inside the upper end of the cover body.

[0008] Further, the refrigerator is obliquely arranged, and the water outlet is located at the lowest position.

[0009] Further, a filter screen is also included. Filter screens are arranged at both the water inlet and the water outlet.

[0010] Advantages of the Utility Model

[0011] 1. The utility model realizes the water circulation through the water inlet pipe and the water outlet pipe, so as to be able to cool the milling cutter during its operation, optimize the heat dissipation effect, and achieve the purpose of self-cooling.

[0012] 2. The utility model cools the water through the refrigerator, thereby reducing the frequency of water replacement and protecting water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic three-dimensional structure diagram of the utility model.

[0014] Figure 2 is a sectional view of the three-dimensional structure of the utility model.

[0015] Figure 3 is a sectional view of the three-dimensional structure of the milling cutter and the cover body of the utility model.

[0016] Reference numerals in the drawings: 1 - milling cutter, 2 - transmission shaft, 3 - power source, 4 - cover body, 5 - fixing block, 6 - water inlet, 7 - water outlet, 8 - valve, 9 - water inlet pipe, 10 - water outlet pipe, 11 - filter screen, 12 - refrigerator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the utility model in conjunction with the drawings and embodiments.

[0018] Embodiment: A self-cooling PCB processing milling cutter, as Figures 1 - 3 shown, includes a milling cutter 1, a transmission shaft 2, a power source 3, a cover body 4 and a circulation assembly. The power source 3 can be arranged inside the cover body 4 or externally connected. The transmission shaft 2 is welded to the lower end of the power source 3. The bottom of the transmission shaft 2 extends into the milling cutter 1 and is fixedly connected thereto. The top of the milling cutter 1 is rotatably connected to the lower end of the cover body 4. A circulation assembly for cooling the milling cutter 1 is arranged on the cover body 4.

[0019] As Figures 1 - 3 shown, the circulation assembly includes a fixing block 5, a valve 8, a water inlet pipe 9 and a water outlet pipe 10. A water inlet 6 is welded to the front end of the cover body 4. A water outlet 7 is welded to the bottom of the upper end of the cover body 4. Valves 8 are arranged at the water inlet 6 and the water outlet 7. One end of the water inlet pipe 9 is welded to the bottom of the upper end of the cover body 4, passes through the fixing block 5 in the middle and extends into the milling cutter 1. The fixing block 5 is welded to the inner part of the lower end of the cover body 4. The water inlet pipe 9 is hermetically connected to the fixing block 5. One end of the water outlet pipe 10 is welded to the bottom of the lower end of the cover body 4, and the other end is welded to the left side of the upper end of the cover body 4.

[0020] As Figure 2 shown, it further includes a refrigerator 12. The refrigerator 12 is fixedly connected to the right side of the upper end of the cover body 4. An extension plate is welded to the inner part of the upper end of the cover body 4. The refrigerator 12 is inclined, and the water outlet 7 is located at the lowest position.

[0021] When using the milling cutter 1 for fine processing of the circuit board, the operator turns on the cooler 12 while turning on the power source 3, opens the valve 8 at the water inlet 6, fills with enough water, then closes the valve 8. The water enters the inside of the milling cutter 1 through the water inlet pipe 9. After reaching a certain height, it returns to the housing 4 along the water outlet pipe 10. And the cooler 12 is in direct contact with the water through the extension plate, which can cool the water. The power source 3 provides power for the milling cutter 1 under the action of the transmission shaft 2. The heat generated during operation is conducted into the inside of the milling cutter 1 and taken away by the circulating water flow, so that the milling cutter 1 maintains a relatively low temperature, and thus there is no need to change the water midway during processing. After the processing is completed, turn off the power source 3 and the cooler 12, open the valve 8 at the water outlet 7, and remove the milling cutter 1 to drain the water inside, so as to ensure the dryness inside the milling cutter 1.

[0022] As Figure 2 shown, it further includes a filter screen 11, and filter screens 11 are welded at both the water inlet 6 and the water outlet 7.

[0023] The filter screen 11 blocks the debris in the water when water enters, preventing blockage of the pipeline. At the same time, it filters the impurities generated inside during drainage, and no pollution is generated during discharge.

[0024] The above embodiments are only the preferred embodiments of the present invention, and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A self-cooling PCB processing milling cutter, characterized in that, It includes a housing (4) and a circulation component. A power source (3) is arranged inside the housing (4). A transmission shaft (2) is arranged at the lower end of the power source (3). The bottom of the transmission shaft (2) extends into the inside of a milling cutter (1) and is fixedly connected thereto. The top of the milling cutter (1) is rotatably connected to the lower end of the housing (4). A circulation component for cooling the milling cutter (1) is arranged on the housing (4).

2. The self-cooling PCB processing milling cutter according to claim 1, wherein, The power source (3) can be arranged inside the housing (4) or externally connected.

3. The self-cooling PCB milling cutter according to claim 2, wherein The circulation component includes a water inlet pipe (9) and a water outlet pipe (10). A water inlet (6) is arranged at the front end of the housing (4). A water outlet (7) is arranged at the bottom of the upper end of the housing (4). Valves (8) are arranged at the water inlet (6) and the water outlet (7). A fixing block (5) is arranged inside the lower end of the housing (4). One end of the water inlet pipe (9) is connected to the bottom of the upper end of the housing (4), passes through the fixing block (5) in the middle and extends into the inside of the milling cutter (1). The water inlet pipe (9) is hermetically connected to the fixing block (5). One end of the water outlet pipe (10) is connected to the bottom of the lower end of the housing (4), and the other end is connected to the left side of the upper end of the housing (4).

4. The self-cooling PCB milling cutter according to claim 3, characterized in that, It further includes a refrigerator (12). The refrigerator (12) is fixedly connected to the right side of the upper end of the housing (4). An extension plate is arranged inside the upper end of the housing (4).

5. The self-cooling PCB milling cutter according to claim 4, characterized in that, The refrigerator (12) is inclined so that the top of the water outlet (7) is at the lowest position.

6. The self-cooling PCB processing milling cutter according to claim 5, characterized in that, It further includes a filter screen (11). The filter screen (11) is arranged at both the water inlet (6) and the water outlet (7).

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