PCB machining tool with good chip removal performance

Abstract

The utility model discloses a PCB (Printed Circuit Board) processing cutter with good chip removal performance, which relates to the technical field of PCB processing cutters and comprises a milling cutter handle, a connecting port arranged at the upper end of the milling cutter handle, a milling cutter edge connected with one end, deviating from the connecting port, of the milling cutter handle, and a milling cutter head connected with one end, deviating from the milling cutter handle, of the milling cutter edge, and a plurality of liquid guide channels communicated with the liquid containing cavity are distributed on the milling cutter edge in a rectangular spiral manner. When the device is used, firstly, the device is connected with a machining main shaft through the connecting port, in the using process, milling operation can be completed through the milling cutter edge and the milling cutter head, and in the milling process, milling liquid is injected into the liquid containing cavity through the liquid inlet by means of an external cutting liquid spraying device; and then the scraps are guided out through the liquid guide channel, the first spraying opening and the second spraying opening, so that the scraps generated in the milling process can be rapidly flushed, accumulation of the scraps is avoided, the scrap removal performance is improved, and the scrap removal performance of the device is good.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB processing tools, in particular to a PCB processing tool with good chip removal performance. Background Art

[0002] There are many types of PCB tools. According to the different processes and requirements in the processing, they can be divided into drilling tools, engraving tools, milling tools and cutting tools. For example, drilling tools are used to drill holes of different sizes; engraving tools are used to engrave the required patterns; milling tools are used to mill into the required shapes; and cutting tools are used to cut PCB boards into the required sizes.

[0003] A large amount of waste chips will be generated during milling by a milling cutter. If the waste chips cannot be quickly discharged, the waste chips will also affect the processing accuracy. In the prior art, there are some solutions that increase drainage holes to discharge the waste chips generated by the milling cutter by introducing cutting fluid. For example, in a high-speed and high-hardness coating milling cutter with good chip removal performance in China Patent No.: CN218135229U, the chip removal groove of the device is densely provided with first water spray holes, and the cleaning liquid is sprayed through the first water spray hole and the second water spray hole, so that the waste chips generated during milling can be quickly washed away to avoid the accumulation of waste chips;

[0004] The above-mentioned device sprays cleaning liquid through the first water spray hole and the second water spray hole in combination to quickly flush the waste chips generated during milling to avoid the accumulation of waste chips. However, when the above-mentioned device is actually used, its first water spray hole is spread all over the surface of the chip withdrawal groove. Therefore, during actual milling, this solution will increase the possibility of processing waste chips entering the interior of the milling tool rod of the above-mentioned device through the first water spray hole of the above-mentioned device, thereby possibly reducing its service life.

[0005] Therefore, we propose a PCB processing tool with good chip removal performance to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of this, the utility model lacks a needle, and its main purpose is to provide a PCB processing tool with good chip removal performance, which serves to solve the above-mentioned problems.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a milling cutter handle, a connecting port arranged on the upper end of the milling cutter handle, a milling cutter blade connected to one end of the milling cutter handle away from the connecting port, and a milling cutter head connected to one end of the milling cutter blade away from the milling cutter handle, the milling cutter handle is provided with a liquid containing cavity inside, the milling cutter blade is provided with a plurality of liquid guide channels connected to the liquid containing cavity in the form of a rectangular spiral, the milling cutter blade is provided with a plurality of first spray ports corresponding to the liquid guide channels, and the milling cutter blade is provided with a plurality of groups of second spray ports corresponding to the liquid guide channels in the form of a vertically equidistant vertical spiral distribution.

[0008] As a preferred solution, the milling cutter handle is provided with a plurality of liquid inlets which are vertically distributed and equidistant in a circular shape.

[0009] As a preferred solution, the plurality of liquid inlets are distributed at an inclined angle from an end close to the connection port toward an end away from the connection port.

[0010] As a preferred solution, the plurality of second spray ports are distributed at an angle inclined from one end close to the milling cutter handle toward one end close to the milling cutter head.

[0011] As a preferred solution, the cross-sectional diameters of the plurality of second spray ports decrease gradually from an end close to the milling cutter handle toward an end close to the milling cutter head.

[0012] As a preferred solution, the cross-sectional diameters of the plurality of first spray openings decrease gradually from an end close to the milling cutter blade toward an end away from the milling cutter blade.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it mainly has the following advantages:

[0014] When the device is used, firstly, the device is connected to the processing spindle through the connecting port. During use, the milling operation can be completed by the milling cutter blade and the milling cutter head. During the milling process, the milling fluid is injected into the liquid containing cavity through the liquid inlet through the external cutting fluid spraying device, and then discharged through the liquid guide channel, the first spray port and the second spray port, so that the waste chips generated during milling can be quickly washed away, the accumulation of waste chips is avoided, the chip removal performance is improved, and the chip removal performance of the device is good.

[0015] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view of the embodiment of the utility model Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the bottom view of the embodiment of the utility model. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of an embodiment of the utility model Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of an embodiment of the utility model Figure 2;

[0021] Figure 6 This is a schematic diagram of the top view of the embodiment of the utility model Figure 2 ;

[0022] Figure 7 This is a schematic diagram of the bottom view of the embodiment of the utility model. Figure 2 ;

[0023] Figure 8 It is an enlarged schematic diagram of the local structure of the milling cutter head part of the embodiment of the utility model.

[0024] Explanation of the accompanying reference numerals: 1. milling cutter handle; 2. connecting port; 3. milling cutter blade; 4. milling cutter head; 5. liquid containing cavity; 6. liquid guiding channel; 7. first spray port; 8. second spray port; 9. liquid inlet. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] See also Figures 1 to 8The embodiment of the utility model provides a PCB processing tool with good chip removal performance, including a milling cutter handle 1, a connecting port 2 arranged at the upper end of the milling cutter handle 1, a milling cutter blade 3 connected to one end of the milling cutter handle 1 away from the connecting port 2, and a milling cutter head 4 connected to one end of the milling cutter blade 3 away from the milling cutter handle 1, a liquid containing cavity 5 is provided inside the milling cutter handle 1, and the liquid containing cavity 5 is used for wetting and storing cutting fluid, and a plurality of liquid guide channels 6 connected to the liquid containing cavity 5 are distributed in a rectangular spiral on the milling cutter blade 3, and four liquid guide channels 6 are specifically arranged, and the liquid guide channels 6 are used for guiding the cutting fluid, and the liquid guide channels 6 are distributed in two sections, one of which is vertically located at the milling cutter handle 1. Inside, the milling cutter blade 3 can be connected to the liquid containing cavity 5 inside the milling cutter handle 1 through this part, and the other part is spirally arranged on the milling cutter blade 3, and a plurality of first spray ports 7 corresponding to and connected to the liquid guide channel 6 are distributed on the milling cutter blade 3. The cross-sectional diameters of the plurality of first spray ports 7 decrease from one end close to the milling cutter blade 3 toward the end away from the milling cutter blade 3. Through this structure, the diameter of the opening portion of the first spray port 7 can be reduced, and at the same time, the pressure of the cutting fluid sprayed through the opening can be increased, so that the impact of the cutting fluid when sprayed is greater, thereby improving the cleaning and chip removal effect. The milling cutter blade 3 is vertically equidistantly arranged with a plurality of groups of first spray ports 7 corresponding to the liquid guide channel 6. The liquid guide channel 6 corresponds to the connected second spray port 8, and the plurality of second spray ports 8 are distributed at an angle close to one end of the milling cutter handle 1 toward one end close to the milling cutter head 4. The cross-sectional diameters of the plurality of second spray ports 8 decrease gradually from one end close to the milling cutter handle 1 toward one end close to the milling cutter head 4. Specifically, four cutting edges are spirally distributed on the milling cutter blade 3, and the position of the second spray port 8 is not located on the adjacent surface of any two adjacent groups of cutting edges. This design enables the second spray port 8 to be located at the upper position of the cutting edge part of the two adjacent milling cutter blades 3 when cutting and withdrawing chips, thereby greatly reducing the direct contact of the second spray port 8 with the first milling cutter blade 3 when the waste chips are discharged. The opening part of the second spray port 8. At the same time, since the opening of the second spray port 8 is expanded toward the inside, the smaller outer opening can further prevent waste chips from entering the milling cutter blade 3 through the second spray port 8 and causing blockage, thereby ensuring the unobstructed flow of the second spray port 8. When in use, cutting fluid is injected into the liquid chamber 5, and then discharged through the liquid guide channel 6, and then discharged through the first spray port 7 and the second spray port 8. In this way, the waste chips generated on the milling cutter blade 3 and the milling cutter head 4 during cutting can be cleaned, and then the waste chips generated during milling can be quickly flushed to avoid waste chip accumulation and improve chip removal performance.

[0028] See also Figures 1 to 8 The milling cutter handle 1 is provided with a plurality of liquid inlets 9 which are vertically and equidistantly distributed in a circular shape. The plurality of liquid inlets 9 are distributed at an angle inclined from one end close to the connecting port 2 toward the end away from the connecting port 2. Cutting fluid can be injected into the liquid chamber 5 through the liquid inlets 9.

[0029] In summary, when the device is actually used, the device is first connected to the machining spindle through the connecting port 2. During use, the milling operation can be completed through the milling cutter blade 3 and the milling cutter head 4. During the milling process, the milling fluid is injected into the liquid containing chamber 5 through the liquid inlet 9 through the external cutting fluid spraying device, and then discharged through the liquid guide channel 6, the first spray port 7 and the second spray port 8, so that the waste chips generated during milling can be quickly flushed, thereby avoiding the accumulation of waste chips and improving the chip removal performance, so that the chip removal performance of the device is good.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PCB processing tool with good chip removal performance, comprising a milling cutter handle (1), a connection port (2) provided at the upper end of the milling cutter handle (1), a milling cutter blade (3) connected to one end of the milling cutter handle (1) away from the connection port (2), and a milling cutter head (4) connected to one end of the milling cutter blade (3) away from the milling cutter handle (1), characterized in that: The milling cutter handle (1) is provided with a liquid containing cavity (5) inside, the milling cutter blade (3) is provided with a plurality of liquid guiding channels (6) connected to the liquid containing cavity (5) in a rectangular spiral arrangement, the milling cutter blade (3) is provided with a plurality of first spray ports (7) correspondingly connected to the liquid guiding channels (6), and the milling cutter blade (3) is provided with a plurality of groups of second spray ports (8) correspondingly connected to the liquid guiding channels (6) in a vertical spiral arrangement at equal intervals.

2. A PCB processing tool with good chip removal performance according to claim 1, characterized in that: The milling cutter handle (1) is provided with a plurality of liquid inlets (9) which are vertically distributed and equidistant in a ring shape.

3. A PCB processing tool with good chip removal performance according to claim 2, characterized in that: The plurality of liquid inlets (9) are distributed at an inclined angle from an end close to the connection port (2) toward an end away from the connection port (2).

4. A PCB processing tool with good chip removal performance according to claim 1, characterized in that: The plurality of second spray ports (8) are distributed at an angle inclined from one end close to the milling cutter handle (1) toward one end close to the milling cutter head (4).

5. A PCB processing tool with good chip removal performance according to claim 4, characterized in that: The cross-sectional diameters of the plurality of second spray ports (8) decrease gradually from an end close to the milling cutter handle (1) toward an end close to the milling cutter head (4).

6. A PCB processing tool with good chip removal performance according to claim 1, characterized in that: The cross-sectional diameters of the plurality of first spray ports (7) decrease gradually from an end close to the milling cutter blade (3) toward an end away from the milling cutter blade (3).

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