PCB milling cutter with chip removal function

Abstract

The utility model discloses a PCB (printed circuit board) milling cutter with a chip removal function, which comprises a cutter handle, a blade part detachably connected with the cutter handle, and a guide reinforcing chip removal device arranged on the cutter handle and the blade part, the guide reinforcing chip removal device comprises a sleeve sleeved on the outer side of the blade part, a fastening cylinder mounted on the sleeve, and fan blades arranged on the fastening cylinder, the guide column is arranged at the top of the sleeve, the guide groove is formed in the bottom of the cutter handle and used for allowing the guide column to be inserted, the threaded hole is formed in the outer wall of the cutter handle, the fastening bolt is in threaded connection with the threaded hole, and one end of the fastening bolt can abut against the guide column. The arc-shaped plate is installed on the inner wall of the guide groove, and the guide column is attached to the arc-shaped plate; the guide reinforcing chip removal device has the advantages that guide of height adjustment of the sleeve is increased through the designed guide reinforcing chip removal device and cooperation of the guide column and the guide groove, the sleeve with the height adjusted can be fastened, and the problem that stability is insufficient after the height of the sleeve is adjusted is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of PCB milling cutter, specifically relates to a PCB milling cutter with chip removal function. BACKGROUND

[0002] PCB milling cutter is the key tool in the processing of printed circuit board, is widely used in numerical control milling machine or PCB engraving machine and other equipment, and its main function is to accurately remove PCB material through mechanical processing, so as to realize the forming, drilling and cutting process of circuit board; with the rapid development of electronic industry, the requirement of PCB processing precision and efficiency is increasing, and the performance of PCB milling cutter also becomes an important factor affecting the processing quality.

[0003] At present, in the prior art, such as patent publication number CN112605446B, a kind of PCB milling cutter with automatic chip removal capacity, by setting up chip removal device in blade part, to a certain extent, the problem of chip removal is solved;The chip removal device includes sleeve, magnetic strip and fan blade and other structures, the sleeve is sleeved on the outer surface of blade part, is fixed on connecting portion using the attraction of magnetic ring and magnetic strip, and the inner surface of sleeve is provided with helical groove, can realize the function of chip removal when blade part rotates;However, in the actual use process, it is found that when the sleeve height is adjusted, its stability is insufficient;Since the sleeve is only fixed by the attraction of magnetic ring and magnetic strip, if the magnetic force of magnetic ring and magnetic strip is not enough, such as the magnetic property of magnetic ring and magnetic strip is weakened after long-term use, or the position of magnetic strip in installation groove is slightly deviated, when milling cutter rotates at high speed, sleeve is prone to shaking, not only will affect the chip removal effect, also can lead to the decline of processing precision, even damage tool and circuit board, limit the application of PCB milling cutter in high-precision processing field. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of PCB milling cutter with chip removal function, solve the problem of insufficient stability of sleeve height adjustment in prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of PCB milling cutter with chip removal function, including handle, with the handle dismounting connection blade part, the guiding reinforcement chip removal device being set on handle, blade part, the guiding reinforcement chip removal device includes sleeve that is set on the outside of blade part, fastening cylinder being installed on sleeve, fan blade being set on fastening cylinder, guide column being set on the top of sleeve, guide slot being opened in the bottom of handle for the insertion of guide column, thread hole being opened in the outer wall of handle, fastening bolt being connected with thread hole by screw thread, and the end of fastening bolt can be tightly on guide column.

[0006] Preferably, it further includes arc-shaped plate being installed on the inner wall of guide slot, and guide column is attached to arc-shaped plate.

[0007] Preferably, the fan leaf and the fastening cylinder are connected by screwing, and the fastening cylinder and the sleeve are connected by screwing.

[0008] Preferably, the fixed ring is mounted on the inner wall of the blade handle, and the blade part and the fixed ring are detachably connected.

[0009] Preferably, a plurality of screws are arranged to fix the blade part and the fixed ring, and the top of the blade handle is provided with an extension.

[0010] Preferably, the top cap is provided with an inner thread on the inner wall, and the extension is provided with an outer thread connected with the inner thread.

[0011] Preferably, the blade handle is a hollow cylindrical structure, and the height of the sleeve is one third of the height of the blade part.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The guiding and reinforcing chip removal device is designed, the guide column and the guide groove are matched, the height adjustment of the sleeve is guided, the sleeve for height adjustment can be fastened, and the problem of insufficient stability after the height adjustment of the sleeve is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a front view partial sectional structural schematic diagram of the utility model;

[0016] Figure 3 It is an E area enlarged structural schematic diagram in the utility model; Figure 2

[0017] Figure 4 It is an F area enlarged structural schematic diagram in the utility model; Figure 2

[0018] In the drawing: 1, blade handle; 11, guide groove; 110, arc plate; 12, threaded hole; 13, extension; 130, outer thread; 2, blade part; 3, top cap; 31, inner thread; 4, sleeve; 41, guide column; 5, fastening cylinder; 51, fan leaf; 6, fastening bolt; 7, fixed ring; 8, screw. DETAILED DESCRIPTION

[0019] ​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0020] Embodiment 1

[0021] Please refer to Figures 1-4 As a first embodiment of the present application, the embodiment provides a PCB milling cutter with chip removal function, which comprises a handle 1, a blade part 2 detachably connected with the handle 1, a guide and reinforcing chip removal device arranged on the handle 1 and the blade part 2, the guide and reinforcing chip removal device comprises a sleeve 4 sleeved on the outer side of the blade part 2, the sleeve 4 can cover the lower part of the blade part 2 to play a protective performance, a fastening cylinder 5 installed on the sleeve 4, the fastening cylinder 5 is added, a fan blade 51 arranged on the fastening cylinder 5, the fan blade 51 can blow away the chips drilled by the blade part 2, a guide column 41 arranged on the top of the sleeve 4, the guide column 41 is added, a guide groove 11 opened at the bottom of the handle 1 for the guide column 41 to insert, when the sleeve 4 moves up and down, the guide column 41 and the guide groove 11 are matched to increase the guide of the height adjustment of the sleeve 4, a threaded hole 12 opened on the outer wall of the handle 1, the threaded hole 12 is opened, a fastening bolt 6 threadedly connected with the threaded hole 12, and one end of the fastening bolt 6 can abut against the guide column 41, when the height of the sleeve 4 is adjusted, the fastening bolt 6 is rotated to abut against the guide column 41, so that the fastening bolt 6 fastens the sleeve 4 with the adjusted height, and effectively solves the problem of insufficient stability of the sleeve 4 after the height adjustment.

[0022] In the embodiment, preferably, an arc-shaped plate 110 is installed on the inner wall of the guide groove 11, the arc-shaped plate 110 is added, and the guide column 41 is attached to the arc-shaped plate 110, and the arc-shaped plate 110 further guides the guide column 41 with the adjusted height.

[0023] In the embodiment, preferably, the fan blade 51 and the fastening cylinder 5 are connected by screws, so that the fan blade 51 and the fastening cylinder 5 are stably spliced, and the fastening cylinder 5 and the sleeve 4 are connected by screws, so that the fastening cylinder 5 and the sleeve 4 are stably spliced.

[0024] In the embodiment, preferably, a fixing ring 7 is installed on the inner wall of the handle 1, the fixing ring 7 is added, and a plurality of screws 8 are used to fix the blade part 2 and the fixing ring 7, the blade part 2 and the fixing ring 7 are stably spliced by the screws 8, and the blade part 2 can be disassembled and replaced when damaged, and an extension part 13 is arranged at the top of the handle 1, the extension part 13 is added.

[0025] In this embodiment, preferably, the shank 1 is a hollow cylindrical structure, and the height of the sleeve 4 is one third of the height of the blade part 2.

[0026] Embodiment 2

[0027] Please refer to Figures 1-4 As the second embodiment of the utility model, which is based on the previous embodiment, the difference is that:

[0028] Further comprising a top cover 3, the inner wall of the top cover 3 is provided with an internal thread 31, the internal thread 31 is added, the outer wall of the extension part 13 is provided with an external thread 130 connected with the internal thread 31, the internal thread 31 and the external thread 130 are screwed, so that the top cover 3 and the shank 1 are stably spliced, and the top cover 3 can be disassembled according to needs.

[0029] The working principle and use process of the utility model: install the fixing ring 7 in the inner wall of the shank 1, fix and connect the blade part 2 with the fixing ring 7 through a plurality of screws 8, complete the disassembly and connection of the blade part 2 and the shank, ensure stable connection, and facilitate disassembly and replacement when the blade part 2 is damaged subsequently;

[0030] Sleeve 4 is sleeved on the outer side of the blade part 2, so that the sleeve 4 covers the lower part of the blade part 2, and plays a protection role; the fastening cylinder 5 is installed on the sleeve 4 through a screw, and then the fan blade 51 is installed on the fastening cylinder 5 through a screw, so as to ensure that each part is stably spliced; at this time, the guide column 41 is located at the top of the sleeve 4, corresponding to the guide groove 11 at the bottom of the shank 1;

[0031] According to the processing requirements, the sleeve 4 is moved up and down, the height is adjusted and guided by the cooperation of the guide column 41 and the guide groove 11, and the guide column 41 is further guided by the arc-shaped plate 110; after adjusting to the appropriate height, the fastening bolt 6 which is threadedly connected with the threaded hole 12 on the outer wall of the shank 1 is rotated, so that one end of the fastening bolt 6 abuts against the guide column 41, thereby fastening the sleeve 4 after height adjustment;

[0032] Install the installed PCB milling cutter on the corresponding equipment, start the equipment, and the blade part 2 rotates at high speed to process PCB; in the processing process, the sleeve 4 rotates synchronously with the blade part 2, and the fan blade 51 on the sleeve 4 blows away the chips drilled by the blade part 2, realizing the chip removal function.

[0033] Although the embodiments of the utility model have been shown and described, and the detailed description is described above, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A PCB milling cutter with chip removal function, characterized in that: The utility model provides a cutting tool handle, a blade part and a guiding and reinforcing chip removal device, the guiding and reinforcing chip removal device comprises a sleeve, a fastening cylinder, a fan blade, a guide column, a guide groove, a threaded hole, a fastening bolt, an arc-shaped plate, a fixing ring, a plurality of screws, a top extension and a top cover.

2. The PCB milling cutter with chip removal function according to claim 1, characterized in that: The utility model also comprises an arc-shaped plate installed on the inner wall of the guide groove.

3. The PCB milling cutter with chip removal function according to claim 1, characterized in that: The fan blade and the fastening cylinder are connected by screws, and the fastening cylinder and the sleeve are connected by screws.

4. The PCB milling cutter with chip removal function according to claim 1, characterized in that: The utility model also comprises a fixing ring installed on the inner wall of the handle, and the blade part and the fixing ring are detachably connected.

5. The PCB milling cutter with chip removal function according to claim 4, characterized in that: The utility model also comprises a plurality of screws for fixing the blade part and the fixing ring.

6. The PCB milling cutter with chip removal function according to claim 5, characterized in that: The top of the handle is provided with a top extension.

7. The PCB milling cutter with chip removal function according to claim 1, characterized in that: The inner wall of the top cover is provided with an internal thread, and the outer wall of the top extension is provided with an external thread connected with the internal thread. The handle is a hollow cylindrical structure, and the height of the sleeve is one third of the height of the blade part.

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