CN110681930A

CN110681930A - Thread milling cutter with continuous curve edge

Info

Publication number: CN110681930A
Application number: CN201911040391.9A
Authority: CN
Inventors: 李志芬; 梅永杰
Original assignee: CHANGZHOU NAIZHILI TOOLMAKING Co Ltd
Current assignee: CHANGZHOU NAIZHILI TOOLMAKING Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-01-14

Abstract

The invention discloses a thread milling cutter with a continuous curved edge, which comprises a drill bit, a mounting screw, an anti-skidding spring, a sealing gasket, a tapping head, a transition part, a liquid discharge hole, a connecting handle, a liquid storage handle, a liquid inlet, a cutter handle, a spring hole, a threaded hole and a liquid inlet channel. The invention has the beneficial effects that: drill bit and tapping head link together and the dismantlement installation that can be free through installation screw rod and screw hole, can directly carry out direct tapping through the tapping head after drill bit portion drilling finishes, need not change the cutter, can effectually improve the machining efficiency of screw hole, the diameter of tapping head slightly is greater than the diameter of drill bit and the junction of the two is provided with the transition portion of round platform shape, guarantee the drill bit and tap more even of transition conversion between the head, processing is difficult to produce the burr and guarantees to be possessed better quality by the processing screw thread, the middle part cavity of stock solution handle just communicates with inlet and inlet channel, can cool down processing work piece and cutter with utilizing the liquid cooling mode.

Description

Thread milling cutter with continuous curve edge

Technical Field

The invention relates to a thread milling cutter, in particular to a thread milling cutter with a continuous curved edge, and belongs to the field of machining equipment.

Background

At present, a lot of work pieces need utilize thread milling cutter to trompil, the processing of screw hole is that multiple cutter processed in proper order under most circumstances, generally speaking, drill earlier, later use screw tap tapping or thread milling cutter to mill the spiral shell, because need use two kinds of cutters, need frequently with the tool changing, very inconvenience, the process is many and process time is long, the efficiency of work has been reduced, and twice can not guarantee completely that the central point is unanimous around, cause certain error easily, and the screw thread that processes out with this kind of method appears smooth finish harmfully easily or burr phenomenon, later stage still needs workman's manual deburring, troublesome poeration and vulnerable thread, workman's intensity of labour has been improved greatly, workman's work efficiency has been seriously reduced, and the quality of product has been reduced.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a thread milling cutter with a continuous curved edge.

The invention realizes the purpose through the following technical scheme: a thread milling cutter with a continuous curved edge comprises a drill bit, a mounting screw, an anti-skidding spring, a sealing gasket, a tapping head, a transition part, a liquid discharge hole, a connecting handle, a liquid storage handle, a liquid inlet, a cutter handle, a spring hole, a threaded hole and a liquid inlet channel; the anti-skidding spring is fixedly arranged on the upper end surface of the drill bit on two sides of the mounting screw rod, the bottom of the tapping head is fixedly provided with a transition part, the bottom of the tapping head is provided with a threaded hole, two sides of the threaded hole are provided with spring holes, sealing gaskets are arranged in the threaded hole, the drill bit and the tapping head are provided with liquid discharge ports, the upper end of the tapping head is fixedly provided with a connecting handle, the upper end of the connecting handle is fixedly provided with a liquid storage handle, the liquid storage handle is provided with a liquid inlet, the upper end of the liquid storage handle is provided with a cutter handle, the mounting screw rod is fixedly arranged in the threaded hole, the drill bit and the tapping head are connected together through the mounting screw rod and the threaded hole and can be freely disassembled and installed, the diameter of the tapping head is slightly larger than that of the drill bit, the joint of the drill bit and the liquid storage handle is provided with, the anti-skidding spring's upper and lower both ends support the drill bit respectively and tap the head, the inside of drill bit and tap is provided with inlet channel, the middle part cavity of stock solution handle just communicates with inlet and inlet channel, it has the sealed pad of one deck to fill up between the top of installation screw rod and the bottom of screw hole.

Furthermore, in order to directly tap through the tapping head after the drilling of the drill bit part is finished, the drill bit and the tapping head are connected together through the mounting screw rod and the threaded hole and can be freely disassembled and assembled.

Further, in order to ensure that the transition conversion between the drill bit and the tapping head is more uniform, the diameter of the tapping head is slightly larger than that of the drill bit, and a truncated cone-shaped transition part is arranged at the joint of the tapping head and the drill bit.

Further, in order to cool down the machined workpiece and the cutter by utilizing a liquid cooling mode, the middle of the liquid storage handle is hollow and is communicated with the liquid inlet and the liquid inlet channel.

Furthermore, in order to prevent the cooled liquid from leaking, a layer of sealing gasket is arranged between the top of the mounting screw rod and the bottom of the threaded hole.

Furthermore, in order to prevent the drill bit and the tapping head from falling off due to the fact that relative movement is not easy to generate between the drill bit and the tapping head, the upper end and the lower end of the anti-skidding spring respectively abut against the drill bit and the tapping head.

The invention has the beneficial effects that: the thread milling cutter has the advantages that the thread milling cutter is compact in structure connection, simple to use and reasonable in design, a drill bit and a tapping head are connected together through a mounting screw rod and a threaded hole and can be freely disassembled and mounted, after drilling of the drill bit part is finished, direct tapping can be directly carried out through the tapping head without replacing a cutter, the processing efficiency of the threaded hole can be effectively improved, the diameter of the tapping head is slightly larger than that of the drill bit, a truncated cone-shaped transition part is arranged at the joint of the tapping head and the drill bit, transition conversion between the drill bit and the tapping head is more uniform, burrs are not easily generated during processing, the processed threads have better quality, the middle part of a liquid storage handle is hollow and is communicated with a liquid inlet and a liquid inlet channel, a processed workpiece and the cutter can be cooled by utilizing a liquid cooling mode, a layer of sealing gasket is arranged between the top of the mounting screw rod and the bottom of the, so that the cooled liquid can not be leaked, the upper end and the lower end of the antiskid spring respectively support the drill bit and the tapping head, and the drill bit and the tapping head are pressed to prevent relative movement between the drill bit and the tapping head from falling.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the structure of a liquid inlet channel of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

in the figure: 1. the drilling bit, 2, the installation screw rod, 3, the anti-skidding spring, 4, the sealed pad, 5, the tapping head, 6, transition portion, 7, the outage, 8, the connection handle, 9, the stock solution handle, 10, the inlet, 11, the handle of a knife, 12, the spring hole, 13, screw hole, 14, feed liquor passageway.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a thread milling cutter with a continuous curved edge comprises a drill bit 1, a mounting screw 2, an anti-slip spring 3, a sealing gasket 4, a tapping head 5, a transition part 6, a liquid discharge hole 7, a connecting handle 8, a liquid storage handle 9, a liquid inlet 10, a cutter handle 11, a spring hole 12, a threaded hole 13 and a liquid inlet channel 14; the upper end of the drill bit 1 is fixed with a mounting screw 2, the upper end surfaces of the drill bit 1 at two sides of the mounting screw 2 are fixed with anti-skidding springs 3, the bottom of the tapping head 5 is fixed with a transition part 6, the bottom of the tapping head 5 is provided with a threaded hole 13, two sides of the threaded hole 13 are provided with spring holes 12, a sealing gasket 4 is arranged in the threaded hole 13, the drill bit 1 and the tapping head 5 are provided with a liquid discharge port 7, the upper end of the tapping head 5 is fixed with a connecting handle 8, the upper end of the connecting handle 8 is fixed with a liquid storage handle 8, the liquid storage handle 8 is provided with a liquid inlet 10, the upper end of the liquid storage handle 8 is provided with a handle 11, the mounting screw 2 is fixedly arranged in the threaded hole 13, the drill bit 1 and the tapping head 5 are connected together through the mounting screw 2 and the threaded hole 13 and can be freely disassembled and installed, the diameter of the tapping head 5 is slightly larger than the diameter of the drill bit, anti-skidding spring 3 is installed in spring hole 12, anti-skidding spring 3's upper and lower both ends support drill bit 1 and tapping head 5 respectively, drill bit 1 and tapping head 5's inside is provided with inlet channel 14, the middle part cavity of stock solution handle 9 just communicates with inlet 10 and inlet channel 14, it has the sealed pad 4 of one deck to fill up between the top of installation screw 2 and the bottom of screw hole 13.

The invention is a technical optimization scheme: the drill bit 1 and the tapping head 5 are connected together through the mounting screw 2 and the threaded hole 13 and can be freely disassembled and mounted; the diameter of the tapping head 5 is slightly larger than that of the drill bit 1, and a cone-shaped transition part 6 is arranged at the joint of the tapping head and the drill bit; the middle part of the liquid storage handle 9 is hollow and is communicated with the liquid inlet 10 and the liquid inlet channel 14; a layer of sealing gasket 4 is padded between the top of the mounting screw rod 2 and the bottom of the threaded hole 13; the upper end and the lower end of the antiskid spring 3 respectively support against the drill bit 1 and the tapping head 5.

When the liquid storage handle is used, the liquid storage handle is filled with liquid through the liquid discharge hole, the handle is installed on a milling machine, the drill bit is aligned to the position of a threaded hole to be machined on a workpiece, then the milling machine is opened for machining, the drill bit is used for machining the hole, and then the tapping head is used for tapping the drilled hole.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a thread milling cutter with continuous curve sword which characterized in that: the drilling tool comprises a drill bit (1), a mounting screw (2), an anti-skidding spring (3), a sealing gasket (4), a tapping head (5), a transition part (6), a liquid discharge hole (7), a connecting handle (8), a liquid storage handle (9), a liquid inlet (10), a tool shank (11), a spring hole (12), a threaded hole (13) and a liquid inlet channel (14); the anti-skidding thread tapping device is characterized in that a mounting screw (2) is fixed at the upper end of a drill (1), anti-skidding springs (3) are fixed on the upper end face of the drill (1) on two sides of the mounting screw (2), a transition part (6) is fixed at the bottom of a thread tapping head (5), a threaded hole (13) is formed in the bottom of the thread tapping head (5), spring holes (12) are formed in two sides of the threaded hole (13), a sealing gasket (4) is arranged in the threaded hole (13), a liquid discharge port (7) is formed in the drill (1) and the thread tapping head (5), a connecting handle (8) is fixed at the upper end of the thread tapping head (5), a liquid storage handle (8) is fixed at the upper end of the connecting handle (8), a liquid inlet (10) is formed in the liquid storage handle (8), a cutter handle (11) is installed at the upper end of the liquid storage handle (8), and the, the anti-skidding spring (3) is installed in the spring hole (12), and a liquid inlet channel (14) is arranged inside the drill bit (1) and the tapping head (5).

2. A thread milling cutter with a continuous curved edge according to claim 1, wherein: the drill bit (1) and the tapping head (5) are connected together through the mounting screw rod (2) and the threaded hole (13) and can be freely disassembled and mounted.

3. A thread milling cutter with a continuous curved edge according to claim 1, wherein: the diameter of the tapping head (5) is slightly larger than that of the drill bit (1), and a transition part (6) in a circular truncated cone shape is arranged at the joint of the tapping head and the drill bit.

4. A thread milling cutter with a continuous curved edge according to claim 1, wherein: the middle part of the liquid storage handle (9) is hollow and is communicated with the liquid inlet (10) and the liquid inlet channel (14).

5. A thread milling cutter with a continuous curved edge according to claim 1, wherein: and a layer of sealing gasket (4) is padded between the top of the mounting screw rod (2) and the bottom of the threaded hole (13).

6. A thread milling cutter with a continuous curved edge according to claim 1, wherein: the upper end and the lower end of the antiskid spring (3) respectively abut against the drill bit (1) and the tapping head (5).