CN216138184U

CN216138184U - Ultra-short hard alloy milling cutter

Info

Publication number: CN216138184U
Application number: CN202121921709.7U
Authority: CN
Inventors: 周益锋
Original assignee: Changzhou Boyu Cnc Tool Co ltd
Current assignee: Changzhou Boyu Cnc Tool Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-29
Anticipated expiration: 2031-08-17

Abstract

The utility model belongs to the technical field of alloy milling cutters, and particularly relates to an ultra-short hard alloy milling cutter which comprises a base, wherein four extending lugs are fixed on the outer wall of the base, a lock catch is rotatably connected inside each extending lug, a nut is installed on the outer wall of the lock catch, a lantern ring is installed inside the base, screw holes are respectively formed in the lower end of the inner wall of the base and the lower end of the outer wall of the lantern ring, a bolt is connected inside each screw hole in a threaded manner, a fixed rod is installed inside each lantern ring, a fixed ring is arranged at the upper end of each fixed rod, a milling cutter head is arranged at the upper end of each fixed ring, the outer wall of the nut is in a threaded structure, the nut and the lock catch are in threaded connection, the lower end of the inner wall of the lock catch is in an inclined plane structure, the problem that the common milling cutter head is made of ultra-hard materials, the outer thread characteristics of the milling cutter head can be finished on high-end thread grinding equipment, and common mold factories cannot independently manufacture such cutters, needs to be imported and has high use cost.

Description

Ultra-short hard alloy milling cutter

Technical Field

The utility model belongs to the technical field of alloy milling cutters, and particularly relates to an ultra-short hard alloy milling cutter.

Background

A milling cutter is a rotating tool for milling machining having one or more cutter teeth. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine, and the conventional cutting head-replaceable hard alloy milling cutter has high processing efficiency and allows repeated repair. However, the tool apron and the milling head of the cutting head replaceable hard alloy milling cutter are connected through threads, external threads are required to be machined on the hard alloy cutting head, the cutting head is made of superhard materials, the machining process can be completed only by the external threads on high-end thread grinding equipment (using a diamond grinding wheel), and a common die factory cannot manufacture the tool independently, needs to import the tool and is high in use cost; in order to solve the problems exposed in the use of the current alloy milling cutter, structural improvement and optimization of the alloy milling cutter are needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the ultra-short hard alloy milling cutter which has the characteristic that the milling cutter head can be conveniently replaced and fixed without grinding threads on the milling cutter head.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an ultrashort type carbide milling cutter, includes the base, the outer wall of base is fixed with four and extends the ear, the inside rotation that extends the ear is connected with the hasp, the nut is installed to the outer wall of hasp, the internally mounted of base has the lantern ring, the screw has been seted up respectively to the inner wall lower extreme of base and the outer wall lower extreme of the lantern ring, the inside threaded connection of screw has the bolt, the internally mounted of the lantern ring has the dead lever, the upper end of dead lever is equipped with solid fixed ring, gu fixed ring's upper end is equipped with the milling cutter head.

As the preferable technical scheme of the ultra-short hard alloy milling cutter, the outer wall of the nut is in a threaded structure, and the nut and the lock catch are in threaded connection.

As the preferable technical scheme of the ultra-short hard alloy milling cutter, the lower end of the inner wall of the lock catch is of an inclined plane structure, and the upper end of the outer wall of the nut is of an inclined plane structure.

As the preferable technical scheme of the ultra-short hard alloy milling cutter, the inner wall of the lantern ring is provided with a groove.

As the preferable technical scheme of the ultra-short hard alloy milling cutter, the outer wall of the upper end of the fixing ring is of an inclined surface structure.

As the preferable technical scheme of the ultra-short hard alloy milling cutter, the fixing rod, the fixing ring and the milling cutter head are integrally formed.

As the preferable technical scheme of the ultra-short hard alloy milling cutter, the upper end of the lock catch is of a hook-shaped structure.

Compared with the prior art, the utility model has the beneficial effects that: the inclined surface of the nut extrudes the inclined surface of the lock catch by rotating the nut, so that the lock catch is driven to rotate, and the upper end of the lock catch clamps the fixing ring through the hook-shaped structure; through installing the bolt in the inside screw up of screw, certain contractility has when the slot makes the lantern ring receive the extrusion simultaneously, make the lantern ring extrusion fix the dead lever, be of value to and need not grinding screw on milling cutter head, can conveniently change and fixed milling cutter head, it is superhard material to have solved general milling cutter head, its external screw thread characteristic need on high-end screw thread grinding equipment (use diamond grinding wheel) just can accomplish this processing technology, general mould factory fails to independently make this type of cutter, need import, the problem that use cost is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of a carbide milling cutter assembly according to the present invention;

FIG. 2 is a schematic structural view of the bottom end of the carbide milling cutter device of the present invention;

FIG. 3 is a schematic structural view of a section of the carbide milling cutter device of the present invention;

FIG. 4 is a schematic structural view of an alloy milling cutter according to the present invention;

FIG. 5 is a cross-sectional view of a tool holder according to the present invention;

in the figure: 1. a base; 2. an extension ear; 3. locking; 4. a nut; 5. a collar; 6. a screw hole; 7. a bolt; 8. a trench; 9. fixing the rod; 10. a fixing ring; 11. a milling head.

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.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: an ultra-short hard alloy milling cutter comprises a base 1, four extending lugs 2 are fixed on the outer wall of the base 1, a lock catch 3 is rotatably connected inside the extending lugs 2, a nut 4 is installed on the outer wall of the lock catch 3, a lantern ring 5 is installed inside the base 1, a screw hole 6 is respectively arranged at the lower end of the inner wall of the base 1 and the lower end of the outer wall of the lantern ring 5, a bolt 7 is connected inside the screw hole 6 in a threaded manner, a fixed rod 9 is installed inside the lantern ring 5, a fixed ring 10 is arranged at the upper end of the fixed rod 9, a milling cutter head 11 is arranged at the upper end of the fixed ring 10, the fixing rod 9 is inserted into the lantern ring 5, the bolt 7 is installed in the screw hole 6 and screwed, so that the fixing rod 9 is fixed by the lantern ring 5 through compression, the nut 4 is then rotated to push the latch 3 through the nut 4, causing the latch 3 to rotate to clamp the retaining ring 10, thereby attaching the milling head 11 to the base 1.

Specifically, the outer wall of nut 4 is the helicitic texture, and nut 4 and hasp 3 are threaded connection, and it removes along hasp 3 when making nut 4 rotate the rotation through threaded connection in this embodiment, has self-locking nature when making nut 4 promote hasp 3 to press from both sides tightly.

Specifically, the inner wall lower extreme of hasp 3 is the inclined plane structure, and the outer wall upper end of nut 4 is the inclined plane structure, and the inclined plane of hasp 3 is extruded through the inclined plane of nut 4 in this embodiment to drive hasp 3 and rotate.

Specifically, the inner wall of the collar 5 is provided with a groove 8, and the collar 5 has certain contractibility when being squeezed through the groove 8 in the embodiment.

Specifically, the outer wall of the upper end of the fixing ring 10 is an inclined plane structure, so that when the locking buckle 3 clamps the fixing ring 10, the contact area between the upper end of the locking buckle 3 and the upper end of the fixing ring 10 is increased, and the clamping tightness is improved.

Specifically, dead lever 9, solid fixed ring 10 and milling cutter head 11 are integrated into one piece, improve the holistic precision of milling cutter part in this embodiment, save the cost.

Specifically, the upper end of the latch 3 is of a hook-shaped structure, and when the latch 3 rotates to clamp the fixing ring 10 in the embodiment, the upper end of the latch 3 clamps the fixing ring 10 through the hook-shaped structure, so that clamping is firmer.

The working principle and the using process of the utility model are as follows: the dead lever 9 is inserted into the lantern ring 5 for the first time, the bolt 7 is installed inside the screw hole 6 for screwing, the lantern ring 5 has certain contractibility when being extruded through the groove 8, the dead lever 9 is fixed by extruding the lantern ring 5, then the nut 4 is rotated, the inclined plane of the lock catch 3 is extruded through the inclined plane of the nut 4, so that the lock catch 3 is driven to rotate, the upper end of the lock catch 3 clamps the fixed ring 10 through the hook-shaped structure, the nut 4 and the lock catch 3 are in threaded connection, the nut 4 is enabled to push the lock catch 3 to have self-locking performance when being clamped, the problem of shaking when the lock catch 3 is clamped is avoided, and finally the milling cutter head 11 is installed and connected with the base 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-short type carbide milling cutter, includes base (1), its characterized in that: the outer wall of base (1) is fixed with four and extends ear (2), the inside rotation that extends ear (2) is connected with hasp (3), nut (4) are installed to the outer wall of hasp (3), the internally mounted of base (1) has the lantern ring (5), screw (6) have been seted up respectively to the inner wall lower extreme of base (1) and the outer wall lower extreme of the lantern ring (5), the internal thread of screw (6) is connected with bolt (7), the internally mounted of the lantern ring (5) has dead lever (9), the upper end of dead lever (9) is equipped with solid fixed ring (10), the upper end of solid fixed ring (10) is equipped with milling cutter head (11).

2. The ultra-short cemented carbide milling cutter as set forth in claim 1, wherein: the outer wall of the nut (4) is of a threaded structure, and the nut (4) is in threaded connection with the lock catch (3).

3. The ultra-short cemented carbide milling cutter as set forth in claim 1, wherein: the lower end of the inner wall of the lock catch (3) is of an inclined plane structure, and the upper end of the outer wall of the nut (4) is of an inclined plane structure.

4. The ultra-short cemented carbide milling cutter as set forth in claim 1, wherein: the inner wall of the lantern ring (5) is provided with a groove (8).

5. The ultra-short cemented carbide milling cutter as set forth in claim 1, wherein: the outer wall of the upper end of the fixing ring (10) is of an inclined plane structure.

6. The ultra-short cemented carbide milling cutter as set forth in claim 1, wherein: the fixing rod (9), the fixing ring (10) and the milling head (11) are integrally formed.

7. The ultra-short cemented carbide milling cutter as set forth in claim 1, wherein: the upper end of the lock catch (3) is of a hook-shaped structure.