CN-224209562-U - Anti-chip-sticking circular nose milling cutter with stepped cutting edge

Abstract

The utility model discloses a round nose milling cutter with a stepped cutting edge for chip adhesion prevention, which comprises a base, a supporting rod, a round nose milling cutter and a chip adhesion prevention mechanism, wherein the base is fixed on an external machine tool, the supporting rod is fixed at the center of the base, the round nose milling cutter is coaxially arranged at one end of the supporting rod far away from the base, and the round nose milling cutter is a stepped cutting edge. The utility model has the beneficial effects that the transmission disc drives the whole bearing seat to revolve on the supporting rod, the driven bevel gear is meshed and linked with the driving bevel gear while revolving, and synchronously drives the linked bevel gear to mesh and link, so as to drive the guide disc and the spray head to rotate, the gear linked structure drives the spray head to revolve around the milling cutter and rotate, the cleaning liquid jet uniformly covers the surface of the cutter, the local flushing blind area caused by the traditional fixed spray head is thoroughly eliminated, and compared with the fixed spray head which only directionally flushes a certain area, the design obviously reduces the residual risk of scraps in complex structures such as ladder cutting edges, scrap removing grooves and the like.

Inventors

• Qin Weishun
• Tang Chengchong
• XU HAO

Assignees

• 常州其潜工具有限公司

Dates

Publication Date

20260508

Application Date

20250526

Claims (6)

1. 1. The utility model provides a round nose milling cutter of antiseized bits of ladder blade, includes base (1), bracing piece (2), round nose milling cutter (3) and antiseized bits mechanism (4), its characterized in that, base (1) is fixed on outside lathe, bracing piece (2) are fixed in the center department of base (1), round nose milling cutter (3) coaxial setting is kept away from the one end of base (1) on bracing piece (2), just round nose milling cutter (3) are the ladder blade, antiseized bits mechanism (4) set up on bracing piece (2); Anti-sticking mechanism (4) are including supporting seat (41), water conservancy diversion dish (42) and shower nozzle (43), supporting seat (41) rotate and connect on bracing piece (2), bracing piece (2) are located supporting seat (41) center department to all be provided with the cavity in supporting seat (41) and the inside of bracing piece (2), and its junction of two all is provided with the through-hole that link up each other, water conservancy diversion dish (42) rotate and connect the one end at supporting seat (41), shower nozzle (43) coaxial fastening is in the axle center department of water conservancy diversion dish (42), just the inside of water conservancy diversion dish (42) is provided with the water conservancy diversion cavity, shower nozzle (43) link up with the water conservancy diversion cavity to all be provided with the through-hole that link up each other at the rotation link of water conservancy diversion dish (42) and supporting seat (41).
2. 2. The circular nose milling cutter with the ladder cutting edge and the chip preventing function according to claim 1, wherein the chip preventing mechanism (4) further comprises a driving bevel gear (44), a driven bevel gear (45) and a linkage bevel gear (46), the driving bevel gear (44) is coaxially fixed on the supporting rod (2), the driven bevel gear (45) is rotatably connected to the supporting seat (41), the linkage bevel gear (46) is coaxially fixed outside the guide disc (42), and the driven bevel gear (45) is meshed between the driving bevel gear (44) and the linkage bevel gear (46).
3. 3. The round nose milling cutter with the stepped cutting edge and chip adhesion prevention according to claim 1, wherein a transmission disc (47) is further rotationally connected to the supporting rod (2), the transmission disc (47) is fixed to the bottom of the bearing seat (41), and the transmission disc (47) is connected with external transmission equipment through a belt.
4. 4. The round nose milling cutter with the stepped cutting edge and chip adhesion prevention according to claim 3, wherein the peripheral wall of the transmission disc (47) is provided with an arc-shaped notch, and a plurality of through holes are formed in the transmission disc (47) in a penetrating manner.
5. 5. The circular nose milling cutter with the stepped cutting edge and chip adhesion prevention according to claim 1, wherein the guide disc (42), the spray heads (43) and the connecting structure thereof are at least symmetrically arranged on the bearing seat (41), and the circular nose milling cutter (3) is positioned between two adjacent spray heads (43).
6. 6. The circular nose milling cutter with the ladder cutting edge and chip adhesion preventing function is characterized in that a honeycomb duct butt joint hole (5) is formed in the center of the bottom of the base (1) in a penetrating mode, the honeycomb duct butt joint hole (5) is communicated with an inner cavity of the supporting rod (2), and threads are formed in the inner wall of the honeycomb duct butt joint hole (5).

Description

Anti-chip-sticking circular nose milling cutter with stepped cutting edge Technical Field The utility model relates to a round nose milling cutter, in particular to a round nose milling cutter with a stepped cutting edge and chip adhesion prevention, and belongs to the technical field of round nose milling cutters. Background The ‌ round nose milling cutter is an end milling cutter with a circular arc structure at the front end of a cutting edge, the circular arc radius of the cutter tip is generally larger than 1/4 of the diameter of the cutter, the precise machining of a plane, an inclined plane and a curved surface can be finished through rotary cutting, the end milling cutter is particularly suitable for machining complex curved surfaces in the fields of die manufacturing, aerospace and the like, the name of the end milling cutter is derived from the circular arc design of the front end of the cutting edge, and the end milling cutter is similar to the circular nose profile, and has the functional advantages of a flat bottom cutter and a ball head cutter. However, most of the existing round nose milling cutters have various problems, for example, in a round nose milling cutter for processing low-sulfur stainless steel disclosed in publication number CN217571034U, although the problem that the cutting edge of the existing round nose milling cutter is worn seriously after a period of processing is solved, the existing round nose milling cutter generally needs to be matched with a spray nozzle to spray cleaning solution to flush scraps and prevent scraps during operation, but in a processing scene of stationary facing the cutter head and rotating a workpiece, the fixed spray nozzle can only directionally flush a local area of the cutter, so that the problem of scraps residue is difficult to thoroughly solve, especially in a high-strength cutting process, scraps accumulation can aggravate the abrasion of the cutter, reduce the processing precision and even influence the surface finish of the workpiece, for example, the traditional round nose milling cutter realizes cooling through a guide groove and a liquid groove, but does not optimize the flushing coverage range, and part of improvement schemes adopt a double chip-containing groove design to smooth a chip removal path, but still external flushing assistance ‌ is needed. Disclosure of utility model The technical scheme of the utility model aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly aims at solving the defects in the prior art and providing the stepped cutting edge chip-sticking prevention round nose milling cutter. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The round nose milling cutter comprises a base, a supporting rod, a round nose milling cutter and a chip-preventing mechanism, wherein the base is fixed on an external machine tool, the supporting rod is fixed at the center of the base, the round nose milling cutter is coaxially arranged at one end, far away from the base, of the supporting rod, the round nose milling cutter is a step cutting edge, and the chip-preventing mechanism is arranged on the supporting rod; The anti-chip adhesion mechanism comprises a bearing seat, a flow guide disc and a spray head, wherein the bearing seat is rotationally connected to a supporting rod, the supporting rod is located at the center of the bearing seat, cavities are formed in the bearing seat and the supporting rod, through holes which are mutually communicated are formed in the connecting positions of the bearing seat and the supporting rod, the flow guide disc is rotationally connected to one end of the bearing seat, the spray head is coaxially fixed to the axis of the flow guide disc, a flow guide cavity is formed in the flow guide disc, and the spray head is communicated with the flow guide cavity, and mutually communicated through holes are formed in the flow guide disc and the rotating connecting end of the bearing seat. As a still further scheme of the utility model, the anti-chip-sticking mechanism further comprises a driving bevel gear, a driven bevel gear and a linkage bevel gear, wherein the driving bevel gear is coaxially fixed on the supporting rod, the driven bevel gear is rotatably connected to the supporting seat, the linkage bevel gear is coaxially fixed outside the flow guiding disc, and the driven bevel gear is meshed between the driving bevel gear and the linkage bevel gear. As a still further proposal of the utility model, the supporting rod is also rotatably connected with a driving disk which is fixed at the bottom of the bearing bracket and is connected with external driving equipment through a belt. As a still further proposal of the utility model, the peripheral wall of the transmission disc is provided with an arc notch, and a plurality of through holes are arrang