CN112893949A

CN112893949A - Milling cutter

Info

Publication number: CN112893949A
Application number: CN202110059493.6A
Authority: CN
Inventors: 余洋
Original assignee: Individual
Current assignee: Shandong Tool Production Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-06-04
Anticipated expiration: 2041-01-18
Also published as: CN112893949B

Abstract

The invention discloses a milling cutter, which comprises a drilling shaft lever, wherein cutter blades are uniformly and fixedly connected to the outer surface of the drilling shaft lever, drilling main blades are symmetrically and fixedly connected to two sides of the bottom of the drilling shaft lever, drilling ball discs are fixedly connected to the surface of the bottom of the drilling shaft lever and positioned between the drilling main blades, a conical positioning pin is fixedly connected to the middle position of the bottom of the drilling shaft lever, an inner hole leveling mechanism is fixedly connected to the middle position of the top of the drilling shaft lever, limiting balance wheels are uniformly and fixedly connected to the surface of the top of the inner hole leveling mechanism, an active pushing mechanism is uniformly and fixedly connected to the vertical position of the outer part of the drilling shaft lever, a scraping conical block is fixedly connected to one end, close to the outer side, of the limiting balance wheel, a positioning limiting mechanism is fixedly connected to the middle position of the bottom of an auxiliary. The milling cutter achieves the aim of carrying out multiple finish machining on the washing and cutting machining surface of the workpiece, and guarantees the washing and cutting machining quality of the workpiece.

Description

Milling cutter

Technical Field

The invention relates to the technical field of milling cutters, in particular to a milling cutter.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. 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.

If the Chinese invention discloses the number: the milling cutter of CN106170357A comprises a body (1), said body (1) having a central axis (C1) on which the body (1) is rotatable and an outer side face comprising a pair of opposite front and back faces (3, 4) and a peripheral envelope surface (5), and said outer side face being fitted with a plurality of replaceable cutting inserts (2). According to the invention, the body (1) comprises an internal hollow space (36), the hollow space (36) having an internal limiting surface (37), a plurality of bores (11) opening jointly in the internal limiting surface (37) and also in the outer side face, each cutting insert (2) being mounted on an outer end of an ejector (29) which is linearly movable in the respective bore (11) and has an inner end (25) accessible from the hollow space (36), and which interacts with a compressible force generator (14) which always serves to pull the ejector into the bore (11). By mounting the cutting insert (2) on an ejector (29) which is simultaneously accessible from a common hollow space, the cutting insert (2) can be quickly and easily replaced and also indexed.

Also, for example, the Chinese invention publication number is: CN105562801A, a milling cutter for machining a predetermined contour line of a workpiece, the predetermined contour line including a first portion and a second portion connected to the first portion, the milling cutter comprising a shank having a central axis, the milling cutter further including a plurality of first cutting edges and a plurality of second cutting edges, the first cutting edges and the second cutting edges being arranged in a staggered manner, the first cutting edges being configured to rotate around the central axis to form a first rotation trajectory for machining the first portion of the predetermined contour line of the workpiece, the second cutting edges being configured to rotate around the central axis to form a second rotation trajectory different from the first rotation trajectory for machining the second portion of the predetermined contour line of the workpiece, the first rotation trajectory being connected to the second rotation trajectory. The milling cutter has relatively small cutting resistance and long service life.

Arrange the material inefficiency in traditional milling cutter course of working, can not realize the initiative and arrange the material to iron fillings follow the together rotatory work of milling cutter, are unfavorable for milling cutter's normal work, and iron fillings can cause the damage to the work piece machined surface simultaneously, and the work piece inner wall is comparatively crude after washing and cutting processing, and the machining precision is low.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a milling cutter, which solves the problems that the material discharging efficiency is low in the processing process of the traditional milling cutter, and the active material discharging cannot be realized, so that iron chips rotate along with the milling cutter to work, the normal work of the milling cutter is not facilitated, the iron chips can damage the processing surface of a workpiece, the inner wall of the workpiece is rough after washing and cutting, and the processing precision is low.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a milling cutter comprises a drilling shaft rod, cutter blades are uniformly and fixedly connected to the outer surface of the drilling shaft rod, drilling main blades are symmetrically and fixedly connected to two sides of the bottom of the drilling shaft rod, drilling ball discs are fixedly connected to the surface of the bottom of the drilling shaft rod and positioned between the drilling main blades, a conical positioning pin is fixedly connected to the middle position of the bottom of the drilling shaft rod, an inner hole leveling mechanism is fixedly connected to the middle position of the top of the drilling shaft rod, a limiting balance wheel is uniformly and fixedly connected to the surface of the top of the inner hole leveling mechanism, an auxiliary shaft block is connected to the top of the limiting balance wheel, an installation fixture block is fixedly connected to the axis of the top of the auxiliary shaft block, an active pushing mechanism is uniformly and fixedly connected to the vertical position of the outer part of the drilling shaft rod, a scraping cone block is fixedly connected to one end, close to the outer side, of the limiting balance, the outer surface of the positioning limiting mechanism is sleeved with a limiting gear and is fixedly connected with the limiting gear, and the outer surface of the limiting gear is in meshed connection with the inner measuring surface of the limiting balance wheel. And (4) performing finish machining on the washing and cutting machined surface of the workpiece for multiple times, and ensuring the washing and cutting machining quality of the workpiece.

Preferably, the outer scraping blade is fixedly connected to one end of the outer side of the scraping conical block, and the auxiliary blades are fixedly connected to the surface of the outer side of the scraping conical block and the two sides of the outer scraping blade.

Preferably, hole leveling mechanism arranges the material blade including leveling, level the bottom of arranging the material blade and drilling axostylus axostyle fixed connection, level and arrange the material blade and adopt triangular pyramid structure, level the equal fixedly connected with of the outside one end of arranging the material blade and level the ball. Scrap iron generated by washing and cutting is accumulated at the position between the flat discharge blades, collection of the scrap iron is achieved, when the milling cutter is pulled out, the scrap iron is taken out in a centralized mode between the flat discharge blades, and cleaning of impurities in washing and cutting is facilitated.

Preferably, the outer side surface of the leveling ball is uniformly and fixedly connected with leveling lugs at equal intervals. And (4) cutting and polishing the larger protrusions on the machined surface of the workpiece to realize the rough polishing of the machined surface of the workpiece.

Preferably, the active pushing mechanism comprises a limiting frame, an inner inserting rod penetrates through the right side of the limiting frame and is connected with the right side of the limiting frame in a sliding mode, the left side of the inner inserting rod is inserted into the limiting frame downwards, and a pushing plate is fixedly connected to one end, located outside the inner inserting rod, of the inner inserting rod. Conduct iron fillings upwards, improve the emission efficiency of iron fillings waste material.

Preferably, one end of the inner inserted rod, which is located inside the limiting frame, is rotatably connected with a transmission pressure plate, the upper end and the lower end of the middle position inside the limiting frame and the upper end and the lower end of the transmission pressure plate are both fixedly connected with magnet blocks, and the magnetic poles of the corresponding surfaces of the two magnet blocks are the same.

Preferably, the positioning limiting mechanism comprises an outer sleeve rod, a filling inner groove is formed in the upper portion inside the outer sleeve rod, a driving shaft rod penetrates through the center of the outer sleeve rod and is connected with the outer sleeve rod in a rotating mode, and the top of the driving shaft rod is fixedly connected with the auxiliary shaft block. The movement of the blade is limited within a safe range, and the blade is protected.

Preferably, both ends of one side of the driving shaft rod positioned in the driving shaft rod are fixedly connected with limiting needle rods, and the filling inner groove is filled with non-Newtonian fluid. The non-Newtonian fluid is filled in the inner filling groove, the viscosity of the non-Newtonian fluid can buffer the instant impact force between the outer scraping blade and the surface of the workpiece in the cutting process, and the blade is protected from being damaged by the instant impact force.

The working principle is as follows: the conical positioning needle is in surface contact with the initial processing position of a workpiece to realize accurate positioning, the drilling main blade and the drilling ball disc simultaneously wash and cut the surface of the workpiece, the cutter blade gradually drills downwards to wash and cut the workpiece again, the cutter blade conducts the processed scrap iron upwards, the inner inserted rod extends out of the limiting frame under the action of centripetal force, the pushing plate moves upwards in an inclined mode, the scrap iron near the pushing plate is conducted upwards to realize active pushing, when the transmission pressing plate moves to the position of the magnet block, the magnetic repulsion buffers the centripetal force, the inner inserted rod does reciprocating movement inside and outside the limiting frame due to uneven drilling speed during processing, the waste is actively and periodically pushed and conducted to the outside, then the leveling lug on the outer surface of the leveling ball and the washed and cut surface of the workpiece are roughly leveled, and the larger convex parts on the processing surface of the workpiece are polished, meanwhile, scrap iron generated by washing and cutting is accumulated at the position between the flat discharge blades, scrap iron collection is realized, when the milling cutter is pulled out, the scrap iron is intensively taken out from the flat discharge blades, after rough and flat cutting, the outer scraping blade is finely cut with a processing surface, the limiting gear is meshed with the limiting balance wheel to rotate during rotation, the limiting needle rod and the filling inner groove limit the rotation angle of the outer scraping blade within a safe range, damage caused by too large rotation angle of the blade is avoided, and meanwhile, non-Newtonian fluid is filled in the filling inner groove, so that the instant impact force generated in the cutting process of the outer scraping blade and the surface of the workpiece can be buffered by the viscosity of the non-Newtonian fluid, the blade is further protected, the outer scraping blades are combined for processing, and the surface of the workpiece can be continuously processed after the outer blades are damaged.

(III) advantageous effects

The invention provides a milling cutter. The method has the following beneficial effects:

(1) the milling cutter comprises a drilling shaft rod, a cutter blade, a drilling main blade, a drilling ball disc, a conical positioning pin, an inner hole leveling mechanism, a limiting balance wheel, a limiting gear and an outer scraping blade, wherein the washing and cutting processing surface of a workpiece is subjected to multiple finish machining, and the washing and cutting processing quality of the workpiece is ensured.

(2) This milling cutter, the iron fillings that wash and cut the processing production are piled up and are levelly and smoothly arranging the position between the material blade, realize the collection of iron fillings, when extracting milling cutter, concentrate the iron fillings from levelly and smoothly arranging between the material blade and take out, conveniently wash the clearance of cutting the processing impurity.

(3) According to the milling cutter, the leveling convex blocks on the outer surface of the leveling ball and the washed and cut surface are roughly leveled, and large protrusions on the machined surface of a workpiece are cut and polished, so that the rough polishing of the machined surface of the workpiece is realized.

(4) The milling cutter fills the inner groove, the limiting needle rod, the limiting gear and the limiting balance wheel, limits the movement of the blade within a safety range, and plays a role in protecting the blade.

(5) The milling cutter is filled with the inner grooves and the limiting needle rods, non-Newtonian fluid is filled in the inner grooves, the instant impact force between the outer scraping blade and the surface of a workpiece in the cutting process can be buffered by the viscosity of the non-Newtonian fluid, and the blade is protected from being damaged by the instant impact force.

(6) According to the milling cutter, the material pushing plate moves upwards in an inclined mode, nearby scrap iron is conducted upwards, active material pushing is achieved, the scrap iron is conducted upwards jointly under the transmission effect of the cutter blades, and the discharge efficiency of scrap iron waste is improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural view of the bottom of the present invention;

FIG. 3 is a schematic structural view of the bottom of the auxiliary shaft block of the present invention;

FIG. 4 is a schematic side view of the auxiliary shaft block of the present invention;

FIG. 5 is a schematic structural view of the inner bore leveling mechanism of the present invention;

FIG. 6 is a schematic structural diagram of the active pushing mechanism of the present invention;

fig. 7 is a schematic structural diagram of the positioning limiting mechanism of the present invention.

In the figure: 1 drilling shaft rod, 2 cutter blades, 3 drilling main blades, 4 drilling ball discs, 5 conical positioning pins, 6 inner hole leveling mechanisms, 61 leveling discharge blades, 62 leveling balls, 63 leveling lugs, 7 limiting balance wheels, 8 auxiliary shaft blocks, 9 mounting fixture blocks, 10 active material pushing mechanisms, 101 limiting frames, 102 inner inserting rods, 103 material pushing plates, 104 transmission pressure plates, 105 magnet blocks, 11 material scraping conical blocks, 12 positioning limiting mechanisms, 121 outer sleeve rods, 122 filling inner grooves, 123 driving shaft rods, 124 limiting needle rods, 13 limiting gears, 14 outer material scraping blades and 15 auxiliary blades.

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.

Example one

As shown in fig. 1 to 4, the present invention provides a technical solution: a milling cutter comprises a drilling shaft lever 1, cutter blades 2 are uniformly and fixedly connected to the outer surface of the drilling shaft lever 1, drilling main blades 3 are symmetrically and fixedly connected to two sides of the bottom of the drilling shaft lever 1, drilling ball discs 4 are fixedly connected to the surface of the bottom of the drilling shaft lever 1 and the positions between the drilling main blades 3, a conical positioning pin 5 is fixedly connected to the middle position of the bottom of the drilling shaft lever 1, an inner hole leveling mechanism 6 is fixedly connected to the middle position of the top of the drilling shaft lever 1, a limiting balance wheel 7 is uniformly and fixedly connected to the surface of the top of the inner hole leveling mechanism 6, an auxiliary shaft block 8 is connected to the top of the limiting balance wheel 7, a mounting fixture block 9 is fixedly connected to the top axis of the auxiliary shaft block 8, an active pushing mechanism 10 is uniformly and fixedly connected to the vertical position of the outer portion of the drilling shaft lever 1, and a, the middle position of the bottom of the auxiliary shaft block 8 is fixedly connected with a positioning limiting mechanism 12, the outer surface of the positioning limiting mechanism 12 is sleeved and fixedly connected with a limiting gear 13, and the outer surface of the limiting gear 13 is meshed and connected with the inner measuring surface of the limiting balance 7. And (4) performing finish machining on the washing and cutting machined surface of the workpiece for multiple times, and ensuring the washing and cutting machining quality of the workpiece.

The outer scraper blade 14 of the equal fixedly connected with in one end in scraper cone 11 outside, the surface in scraper cone 11 outside just is close to the even fixedly connected with in both sides of outer scraper blade 14 and assists blade 15.

Example two

As shown in fig. 5, on the basis of the first embodiment, the present invention provides a technical solution: the utility model provides a milling cutter, hole leveling mechanism 6 is including leveling row material blade 61, levels the bottom and the drilling axostylus axostyle 1 fixed connection of arranging material blade 61, levels row material blade 61 and adopts triangular pyramid structure, levels the equal fixedly connected with of outside one end of arranging material blade 61 and levels ball 62. Scrap iron generated by washing and cutting processing is accumulated at the position between the flat discharging blades 61, so that scrap iron is collected, when the milling cutter is pulled out, the scrap iron is taken out from the flat discharging blades 61 in a centralized manner, and the cleaning of impurities in the washing and cutting processing is facilitated.

The outer side surface of the leveling ball 62 is fixedly connected with leveling lugs 63 uniformly and at equal intervals. And (4) cutting and polishing the larger protrusions on the machined surface of the workpiece to realize the rough polishing of the machined surface of the workpiece.

EXAMPLE III

As shown in fig. 6, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: a milling cutter, the active pushing mechanism 10 includes a limiting frame 101, an inner insert rod 102 is connected to the right side of the limiting frame 101 in a penetrating and sliding manner, the left side of the inner insert rod 102 is inserted into the limiting frame 101 downwards, and a pushing plate 103 is fixedly connected to one end of the inner insert rod 102 located outside the inner insert rod 102. Conduct iron fillings upwards, improve the emission efficiency of iron fillings waste material.

One end of the inner inserted rod 102 inside the limiting frame 101 is rotatably connected with a transmission pressing plate 104, the upper end and the lower end of the middle position inside the limiting frame 101 and the upper end and the lower end of the transmission pressing plate 104 are fixedly connected with magnet blocks 105, and the magnetic poles of the corresponding surfaces of the two magnet blocks 105 are the same.

Example four

As shown in fig. 7, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: a milling cutter, the location limiting mechanism 12 includes an outer sleeve 121, a filling inner groove 122 is arranged above the inner portion of the outer sleeve 121, a driving shaft 123 penetrates through the center of the outer sleeve 121 and is connected with the outer sleeve in a rotating mode, and the top of the driving shaft 123 is fixedly connected with an auxiliary shaft block 8. The movement of the blade is limited within a safe range, and the blade is protected.

The driving shaft 123 has a restraining needle 124 fixedly connected to both ends of one side thereof inside the driving shaft 123, and the inside of the filling inner tank 122 is filled with the non-newtonian fluid. The non-Newtonian fluid is filled in the inner filling groove 122, and the viscosity of the non-Newtonian fluid can buffer the instant impact force generated in the cutting process of the outer scraping blade 14 and the surface of the workpiece, so that the blade is protected from being damaged by the instant impact force.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A milling cutter comprising a drilling shaft (1), characterized in that: the outer surface of the drilling shaft rod (1) is uniformly and fixedly connected with cutter blades (2), two sides of the bottom of the drilling shaft rod (1) are symmetrically and fixedly connected with drilling main blades (3), the surface of the bottom of the drilling shaft rod (1) and the positions between the drilling main blades (3) are both fixedly connected with drilling ball discs (4), the middle position of the bottom of the drilling shaft rod (1) is fixedly connected with a conical positioning pin (5), the middle position of the top of the drilling shaft rod (1) is fixedly connected with an inner hole leveling mechanism (6), the surface of the top of the inner hole leveling mechanism (6) is uniformly and fixedly connected with a limiting balance wheel (7), the top of the limiting balance wheel (7) is connected with an auxiliary shaft block (8), the top axis of the auxiliary shaft block (8) is fixedly connected with a mounting clamping block (9), and the vertical position of the outer part of the drilling shaft rod (1) is uniformly and fixedly connected with, the material scraping conical block (11) is fixedly connected to one end, close to the outer side, of the limiting balance wheel (7), the positioning limiting mechanism (12) is fixedly connected to the middle position of the bottom of the auxiliary shaft block (8), the limiting gear (13) is sleeved and fixedly connected to the outer surface of the positioning limiting mechanism (12), and the outer surface of the limiting gear (13) is in meshed connection with the inner measuring surface of the limiting balance wheel (7).

2. A milling cutter tool according to claim 1, wherein: scrape the equal fixedly connected with outer scraper blade (14) in one end in material awl piece (11) outside, scrape the surface in material awl piece (11) outside and be close to the even fixedly connected with auxiliary blade (15) in both sides of outer scraper blade (14).

3. A milling cutter tool according to claim 1, wherein: hole leveling mechanism (6) are including leveling row material blade (61), level the bottom of arranging material blade (61) and drilling axostylus axostyle (1) fixed connection, level row material blade (61) and adopt the triangular pyramid structure, level the equal fixedly connected with of outside one end of arranging material blade (61) and level ball (62).

4. A milling cutter tool according to claim 3, wherein: the outer side surface of the leveling ball (62) is uniformly and fixedly connected with leveling lugs (63) at equal intervals.

5. A milling cutter tool according to claim 1, wherein: the active material pushing mechanism (10) comprises a limiting frame (101), an inner inserting rod (102) penetrates through the right side of the limiting frame (101) and is connected with the right side of the limiting frame in a sliding mode, the left side of the inner inserting rod (102) is inserted into the limiting frame (101) downwards, and a material pushing plate (103) is fixedly connected to one end, located outside the inner inserting rod (102), of the inner inserting rod (102).

6. The milling cutter tool according to claim 5, wherein: one end of the inner inserting rod (102) located inside the limiting frame (101) is rotatably connected with a transmission pressing plate (104), the upper end and the lower end of the middle position inside the limiting frame (101) and the upper end and the lower end of the transmission pressing plate (104) are fixedly connected with magnet blocks (105), and the magnetic poles of the corresponding surfaces of the two magnet blocks (105) are the same.

7. A milling cutter tool according to claim 1, wherein: the positioning limiting mechanism (12) comprises an outer sleeve rod (121), an inner filling groove (122) is formed in the upper portion of the inner portion of the outer sleeve rod (121), a driving shaft rod (123) penetrates through the center of the outer sleeve rod (121) and is connected with the outer sleeve rod in a rotating mode, and the top of the driving shaft rod (123) is fixedly connected with the auxiliary shaft block (8).

8. The milling cutter tool according to claim 7, wherein: and both ends of one side of the driving shaft rod (123) positioned inside the driving shaft rod (123) are fixedly connected with limiting needle rods (124), and the inside of the filling inner groove (122) is filled with non-Newtonian fluid.