PCB milling cutter applicable to different cutter bits

Abstract

The utility model discloses a PCB milling cutter applicable to different cutter heads, which comprises a cutter handle and a cutter head, the cutter head is arranged at the bottom end of the cutter head, a quick-change cutter head connecting mechanism is arranged between the cutter head and the cutter handle, and an unused protection mechanism is arranged on the surface of the cutter head. The quick-change tool bit connecting mechanism comprises a pre-connecting magnetic attraction assembly and a lockable rotary clamping assembly. The tool bit can be quickly adsorbed to a proper position at the end part of the milling cutter handle through the designed dismounting groove, mounting seat, magnetic attraction block, magnetic attraction ring and bearing to realize preliminary positioning, and meanwhile, mechanical locking can be carried out in cooperation with the designed rotary clamping pin, rotary clamping groove and locking rod, and compared with the prior art, the magnetic attraction can assist in quick positioning, so that the working efficiency is improved. The mechanical locking ensures the stability of the connection, and different types of tool bits can be conveniently replaced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of PCB milling cutter, specifically relates to a PCB milling cutter applicable to different tool bits. BACKGROUND

[0002] PCB milling cutter (also known as PCB milling cutter) is the key tool in the processing of printed circuit board (PCB), mainly used for milling, cutting and shape processing of circuit board in the post-process. Its performance directly affects the processing precision, efficiency and finished product quality of PCB.

[0003] PCB milling cutter needs different specifications of tool bits (such as diameter, blade length, shape, etc.) in different design or production stages in the processing of PCB (printed circuit board). The existing PCB milling cutter cannot be applicable to different tool bits, when it is needed to change from milling shape to milling fine lines, it is impossible to directly replace the appropriate tool bit for operation, which needs to replace the whole milling cutter, resulting in the extension of task conversion time in the processing process and the reduction of production efficiency. Therefore, we provide a kind of PCB milling cutter applicable to different tool bits. SUMMARY

[0004] The utility model aims at providing a kind of PCB milling cutter applicable to different tool bits to solve the problem that the above-mentioned PCB milling cutter cannot quickly replace different tool bits.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of PCB milling cutter applicable to different tool bits, including handle and tool bit, the tool bit is arranged at the bottom end of tool bit, quick-change tool bit connecting mechanism is arranged between the tool bit and handle, the surface of the tool bit is provided with unused protection mechanism, the quick-change tool bit connecting mechanism includes: pre-connection magnetic attraction assembly and lockable rotary clamping assembly.

[0006] Preferably, the pre-connection magnetic attraction assembly includes a disassembly groove opened at the bottom end of the handle and a mounting seat fixed at the top end of the tool bit, and the mounting seat is connected with the disassembly groove.

[0007] Preferably, the top end of the mounting seat is fixed with a magnetic block, the inside of the disassembly groove is provided with a magnetic ring, and the magnetic ring and the disassembly groove are connected with a rotatable bearing, and the magnetic ring and the magnetic block are adsorbed and connected.

[0008] Preferably, the lockable rotary clamping assembly includes equidistantly opened rotary clamping grooves on the surface of the mounting seat and symmetrically fixed rotary clamping pins on the inner wall of the disassembly groove, and the rotary clamping pins and the rotary clamping grooves are rotatably clamped and connected.

[0009] Preferably, the rotation lock is symmetrically provided with a limiting slot on both sides, and the inner wall of the rotation slot is symmetrically fixed with a limiting buckle matched with the limiting slot.

[0010] Preferably, the surface of the mounting seat is symmetrically provided with a locking hole, the inner wall of the dismounting groove is symmetrically provided with a screw hole, the side surface of the tool shank is provided with a locking rod penetrating through the inside of the screw hole and connected with the locking hole, and the locking rod is screw-fixedly connected with the locking hole.

[0011] Preferably, the unused protection mechanism comprises a protection sleeve sleeved at the bottom end of the tool head, and the inner wall of the protection sleeve is symmetrically fixed with a rubber block.

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

[0013] The utility model discloses a dismounting groove, a mounting seat, a magnetic block, a magnetic ring and a bearing are designed, can quickly adsorb the tool head to the suitable position of the end part of milling cutter handle, realize primary positioning, cooperate the rotation lock, the rotation slot and the locking rod of design simultaneously, can carry out mechanical locking, compared with the prior art, magnetic adsorption can assist quick positioning, mechanical locking guarantees the stability of connection, and different types of tool heads can be conveniently replaced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the appearance structure schematic diagram of the utility model;

[0015] Figure 2 It is the rotation slot structure schematic diagram of the utility model;

[0016] Figure 3 It is the A place enlarged schematic diagram in the utility model Figure 1 ;

[0017] Figure 4 It is the B place enlarged schematic diagram in the utility model Figure 3 ;

[0018] In the drawing: 1, tool shank;2, tool head;100, dismounting groove;101, mounting seat;200, magnetic block;201, magnetic ring;202, bearing;300, rotation slot;301, rotation lock;400, limiting slot;401, limiting buckle;500, locking hole;501, screw hole;502, locking rod;600, protection sleeve;601, rubber block. DETAILED DESCRIPTION

[0019] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of the utility model protection.

[0020] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of PCB milling cutter applicable to different tool bits, including handle 1 and tool bit 2, tool bit 2 is arranged at the bottom end of tool bit 2, quick-change tool bit connecting mechanism is arranged between tool bit 2 and handle 1, the surface of tool bit 2 is provided with unused protection mechanism, quick-change tool bit connecting mechanism includes: pre-connection magnetic attraction assembly and lockable rotary clamping assembly.

[0021] In the embodiment, preferably, the pre-connection magnetic attraction assembly includes a disassembly groove 100 opened at the bottom end of the handle 1 and a mounting seat 101 fixed at the top end of the tool bit 2, which is connected by the mounting seat 101 and the disassembly groove 100, facilitating the connection of the tool bit 2 and the handle 1.

[0022] In the embodiment, preferably, the top end of the mounting seat 101 is fixed with a magnetic block 200, the inside of the disassembly groove 100 is provided with a magnetic ring 201, and the magnetic ring 201 and the disassembly groove 100 are connected with a rotatable bearing 202, which can be connected by the magnetic attraction between the magnetic ring 201 and the magnetic block 200, so that the mounting seat 101 and the disassembly groove 100 are connected together.

[0023] In the embodiment, preferably, the lockable rotary clamping assembly includes rotary clamping grooves 300 equidistantly opened on the surface of the mounting seat 101 and rotary clamping pins 301 symmetrically fixed on the inner wall of the disassembly groove 100, and the rotary clamping pins 301 and the rotary clamping grooves 300 are rotatably clamped and connected.

[0024] In the embodiment, preferably, limit grooves 400 are symmetrically opened on both sides of the rotary clamping pin 301, and limit buckles 401 adapted to the limit grooves 400 are symmetrically fixed on the inner wall of the rotary clamping groove 300, which can temporarily limit the rotary clamping pin 301 and the rotary clamping groove 300 together by the clamping connection of the limit buckles 401 and the limit grooves 400.

[0025] In the embodiment, preferably, locking holes 500 are symmetrically opened on the surface of the mounting seat 101, screw holes 501 are symmetrically and throughly opened on the inner wall of the disassembly groove 100, and locking rods 502 are provided on the side surface of the handle 1 and connected with the locking holes 500 through the inside of the screw holes 501, which can be fixedly connected by the screwing of the locking rods 502 and the locking holes 500, so that the mounting seat 101 is firmly fixed in the inside of the disassembly groove 100.

[0026] In the embodiment, preferably, the protective mechanism not used includes a protective sleeve 600 sleeved at the bottom end of the tool bit 2, and rubber blocks 601 are symmetrically fixed to the inner wall of the protective sleeve 600, which can be pressed and attached to the surface of the tool bit 2 to protect the tool bit 2 when not in use.

[0027] The working principle and use process of the utility model are as follows: when the utility model needs to replace the tool bit 2, the locking rods 502 on both sides of the handle 1 are loosened first, the end portions of the locking rods 502 are rotated out of the inside of the locking holes 500 and into the inside of the screw holes 501, the positioning of the mounting seat 101 is released, then the tool bit 2 is rotated clockwise, the mounting seat 101 is rotated in the inside of the dismounting groove 100, the magnetic attraction blocks 200 and the magnetic attraction rings 201 are synchronously rotated in the inside of the dismounting groove 100 through the bearings 202, the rotating clamping grooves 300 are rotated on the surface of the rotating clamping pins 301, the limiting buckles 401 are separated from the limiting grooves 400, the limiting of the rotating clamping pins 301 is released, then the rotating clamping pins 301 are rotated and moved from the deep inside of the rotating clamping grooves 300 to the opening, the tool bit 2 is pulled downward, the mounting seat 101 is moved out of the inside of the dismounting groove 100 downward, the rotating clamping grooves 300 are moved and separated from the rotating clamping pins 301, the magnetic attraction blocks 200 and the magnetic attraction rings 201 are separated and the magnetic attraction state is released, the existing tool bit 2 and handle 1 can be dismounted, then the tool bit 2 and the handle 1 to be used are connected, the top end of the tool bit 2 is connected with the bottom end of the handle 1, the mounting seat 101 is embedded in the inside of the dismounting groove 100, the rotating clamping pins 301 are slid into the inside of the rotating clamping pins 301, after the mounting seat 101 is completely embedded in the inside of the dismounting groove 100, the magnetic attraction blocks 200 and the magnetic attraction rings 201 are magnetically connected, so as to assist in positioning the mounting seat 101 and avoid falling off, then the tool bit 2 is rotated counterclockwise, the mounting seat 101 is rotated counterclockwise in the inside of the dismounting groove 100, the magnetic attraction blocks 200 and the magnetic attraction rings 201 are synchronously rotated in the inside of the dismounting groove 100 through the bearings 202, the rotating clamping pins 301 are rotated and moved from the opening of the rotating clamping grooves 300 to the deep inside, the limiting buckles 401 are connected with the limiting grooves 400 through extrusion, so as to temporarily limit the mounting seat 101, the locking holes 500 and the screw holes 501 are accurately positioned, then the locking rods 502 are tightened, the locking rods 502 are rotated into the inside of the locking holes 500 from the screw holes 501 to be tightened and positioned, and the replacement of the tool bit 2 is completed.

[0028] Although the embodiments of the utility model have been shown and described (see the detailed description above), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the 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 different cutter heads, comprising a cutter holder (1) and a cutter head (2), the cutter head (2) is arranged at the bottom end of the cutter head (2), characterized in that: The quick-change tool head connecting mechanism is arranged between the tool head (2) and the tool handle (1), and the surface of the tool head (2) is provided with a non-use protection mechanism, and the quick-change tool head connecting mechanism comprises a pre-connection magnetic attraction assembly and a lockable rotary clamping assembly.

2. The PCB milling cutter with different cutter heads according to claim 1, characterized in that: The pre-connection magnetic attraction assembly comprises a disassembly groove (100) opened at the bottom end of the tool handle (1) and a mounting seat (101) fixed at the top end of the tool head (2), and the mounting seat (101) is clamped and connected with the disassembly groove (100).

3. The PCB milling cutter with different cutter heads according to claim 2, characterized in that: The top end of the mounting seat (101) is fixed with a magnetic attraction block (200), the inside of the disassembly groove (100) is provided with a magnetic attraction ring (201), the magnetic attraction ring (201) and the disassembly groove (100) are connected with a rotatable bearing (202), and the magnetic attraction ring (201) and the magnetic attraction block (200) are adsorbed and connected.

4. The PCB milling cutter with different applicable cutter heads according to claim 3, characterized in that: The lockable rotary clamping assembly comprises equidistantly opened rotary clamping grooves (300) on the surface of the mounting seat (101) and symmetrically fixed rotary clamping pins (301) on the inner wall of the disassembly groove (100), and the rotary clamping pins (301) and the rotary clamping grooves (300) are rotatably clamped and connected.

5. The PCB milling cutter with different cutter heads according to claim 4, characterized in that: The two sides of the rotary clamping pin (301) are symmetrically provided with a limiting groove (400), and the inner wall of the rotary clamping groove (300) is symmetrically fixed with a limiting buckle (401) matched with the limiting groove (400), and the limiting buckle (401) and the limiting groove (400) are clamped and connected.

6. The PCB milling cutter with different applicable cutter heads according to claim 5, characterized in that: The surface of the mounting seat (101) is symmetrically provided with a locking hole (500), the inner wall of the disassembly groove (100) is symmetrically provided with a screw hole (501), the side surface of the tool handle (1) is provided with a locking rod (502) penetrating through the inside of the screw hole (501) and connected with the locking hole (500), and the locking rod (502) and the locking hole (500) are screwed and fixedly connected.

7. The PCB milling cutter with different cutter heads of claim 1, wherein: The non-use protection mechanism comprises a protective sleeve (600) sleeved at the bottom end of the tool head (2), and the inner wall of the protective sleeve (600) is symmetrically fixed with a rubber block (601), and the rubber block (601) is extruded and attached to the surface of the tool head (2).

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