CN214264182U

CN214264182U - Dry cutting tool for gear tooth processing

Info

Publication number: CN214264182U
Application number: CN202023186518.9U
Authority: CN
Inventors: 曾平华; 邹秋娥
Original assignee: Shaoguan Wujiang Changyi Machinery Manufacturing Co ltd
Current assignee: Shaoguan Wujiang Changyi Machinery Manufacturing Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-09-24
Anticipated expiration: 2030-12-26

Abstract

The utility model provides a gear tooth processing is with cutting tool futilely, including the blade, cutter arbor and cutter dish, the fixed orifices has been seted up at the blade top, blade bottom fixedly connected with cutter arbor, the standing groove has been seted up at the cutter arbor top, the connecting hole has been seted up on the standing groove surface, the knife tip protection slot has been seted up to standing groove one side, cutter arbor top fixedly connected with cutter dish, cutter dish one side fixedly connected with visor, cutter dish inside is provided with a plurality of jet-propelled pipes, the gas pocket has been seted up to visor one side, and jet-propelled pipe gentleness hole quantity is unanimous, cutter dish one side fixedly connected with spliced pole, spliced pole one side is connected with the screw thread post through the screw thread rotation, screw thread post one side fixed mounting has the stopper. According to the tool, the tungsten carbide soft coating and the aluminum titanium nitride hard coating are coated on the surface of the tool, so that the cooling and lubricating problems during cutting are solved, and the detachable tool disc is designed to facilitate replacement of the blade.

Description

Dry cutting tool for gear tooth processing

Technical Field

The utility model relates to a gear machining technical field specifically is a gear tooth processing is with cutting knife futilely.

Background

The cutting fluid is one of the indispensable production factors in most machining, has important effects on ensuring the machining precision, improving the surface quality and the production efficiency, has more and more obvious negative effects on the environment along with the enhancement of global environmental consciousness and the stricter requirements of environmental regulations, and dry cutting also enters the visual field of people.

However, the loss of the existing dry cutting tool for processing gear teeth is very large, no cutting fluid is used for cooling and lubricating, the cutting heat generated by the friction between the tool and a workpiece is easily conducted to the tool, most of the cutting heat generated during cutting is on cutting chips, if the chips cannot be effectively cleaned, the temperature of the tool is increased, the service life of the tool is influenced, and the conventional dry cutting tool is troublesome to replace, so that the production efficiency of gears is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the background art, provide a gear tooth processing is with cutting the cutter futilely, through at the soft coating of tool surface coating tungsten carbide and aluminium titanium nitride hard coat, cooling and the lubrication problem when solving the cutting, design detachable cutter head simultaneously, be convenient for change the blade.

In order to achieve the above objects, the present invention provides a dry cutting tool for processing gear teeth, comprising a blade, a cutter bar and a cutter disc, wherein a fixed hole is formed at the top of the blade, the bottom of the blade is fixedly connected with the cutter bar, a placement groove is formed at the top of the cutter bar, a connecting hole is formed on the surface of the placement groove, a cutter point protection groove is formed at one side of the placement groove, the top of the cutter bar is fixedly connected with the cutter disc, a protective cover is fixedly connected to one side of the cutter disc, a plurality of air nozzles are arranged in the cutter disc, a plurality of air holes are formed at one side of the protective cover, the number of the air nozzles and the number of the air holes are consistent, a connecting column is fixedly connected to one side of the cutter disc, a threaded column is movably connected to one side of the connecting column, a stopper is fixedly installed at one side of the threaded column, a sliding cover is arranged at one side of the stopper, and the inner wall of the sliding cover is provided with threads, the limiting block is fixedly connected with the knife handle on one side, and a gas conveying pipe is arranged in the knife handle.

Further, two layers of coatings are arranged on the surface of the blade, the two layers of coatings are respectively a tungsten carbide soft coating and an aluminum titanium nitride hard coating, the aluminum titanium nitride hard coating covers the surface of the blade, and the tungsten carbide soft coating covers the surface of the aluminum titanium nitride hard coating.

Furthermore, the inner wall and the outer wall of the connecting column are both provided with threads, the threads on the outer wall of the connecting column are meshed with the threads on the inner wall of the sliding cover, the outer wall of the threaded column is provided with threads, and the threads on the inner wall of the connecting column are meshed with the threads on the outer wall of the threaded column.

Furthermore, the diameter length of the fixing hole is equal to that of the connecting hole, and the blade is matched with the size of the placing groove.

Furthermore, the air injection pipes are uniformly distributed in the cutter disc in an annular mode, and the air injection pipes penetrate through the cutter disc and are connected with the air holes.

Further, the knife handle is made of stainless steel materials.

The utility model provides a gear tooth processing is with cutting off cutting tool futilely has following beneficial effect:

1. the utility model has the advantages of, at the soft coating of surface coating tungsten carbide and the aluminium titanium nitride hard coat of blade, the aluminium titanium nitride hard coat covers on the blade surface, make the blade when to gear tooth cutting process, the soft coating of tungsten carbide that has solid lubrication performance can reduce the friction between blade and the work piece surface, reduce the production of cutting heat, play lubricated effect, and the aluminium titanium nitride hard coat that has good heat-proof quality can completely cut on the heat-conduction to the blade, prolong the life of blade, play a refrigerated effect.

2. Secondly, through two sets of threads which are meshed and connected among the sliding cover, the threaded column and the connecting column, the cutter disc can be safely and stably installed on the cutter handle, when the cutter blade needs to be replaced, the cutter disc can be detached only by sequentially unscrewing the sliding cover and the cutter disc, the cutter blade on the cutter disc is replaced, the whole cutter does not need to be detached from the machine tool, and a worker can conveniently replace the cutter blade.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a side view of the overall structure of the present invention.

Fig. 4 is a partial structural sectional view of the present invention.

Fig. 5 is a schematic view of the cutter bar structure of the present invention.

Fig. 6 is a schematic view of the blade structure of the present invention.

Fig. 7 is an enlarged view of the position a of the present invention.

In FIGS. 1-7: the tool comprises a blade-1, a fixing hole-101, a tool bar-2, a placing groove-201, a connecting hole-202, a tool tip protecting groove-203, a tool disc-3, a protecting cover-301, an air jet pipe-302, an air hole-303, a connecting column-4, a threaded column-401, a limiting block-402, a sliding cover-403, a tool handle-5 and an air pipe-501.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to figures 1-7 of the drawings,

the embodiment provides a dry cutting tool for gear tooth machining, which comprises a blade 1, a cutter bar 2 and a cutter disc 3, wherein a fixed hole 101 is formed in the top of the blade 1, the bottom of the blade 1 is fixedly connected with the cutter bar 2, a placing groove 201 is formed in the top of the cutter bar 2, a connecting hole 202 is formed in the surface of the placing groove 201, a cutter point protecting groove 203 is formed in one side of the placing groove 201, the top of the cutter bar 2 is fixedly connected with the cutter disc 3, a protective cover 301 is fixedly connected to one side of the cutter disc 3, a plurality of air injection pipes 302 are arranged inside the cutter disc 3, a plurality of air holes 303 are formed in one side of the protective cover 301, the number of the air injection pipes 302 is consistent with the number of the air holes 303, a connecting column 4 is fixedly connected to one side of the cutter disc 3, a threaded column 401 is movably connected to one side of the connecting, an air pipe 501 is arranged in the knife handle 5.

Further, the surface of the blade 1 is provided with two layers of coatings which are respectively a tungsten carbide soft coating and an aluminum titanium nitride hard coating, the aluminum titanium nitride hard coating covers the surface of the blade 1, the tungsten carbide soft coating covers the surface of the aluminum titanium nitride hard coating, and the aluminum titanium nitride hard coating has good heat insulation performance, so that the cutter plays a heat insulation role in cutting, the cutting heat is prevented from being transmitted to the cutter, a certain cooling effect is achieved, the tungsten carbide soft coating has solid lubrication performance, the friction bonding between the cutter and the surface diameter of a workpiece is reduced, and a certain lubrication effect is achieved.

Further, 4 inner walls of spliced pole and outer wall all are provided with the screw thread, 4 outer wall screw threads of spliced pole are connected with the thread engagement of sliding closure 403 inner wall, thread column 401 outer wall is provided with the screw thread, and 4 inner wall screw threads of spliced pole are connected with the thread engagement of thread column 401 outer wall, through the internal thread of spliced pole 4 and the cooperation of thread column 401, make

cutter dish

3 and 5 screw thread of handle of a knife rotate and be connected, through the screw-thread fit of sliding closure 403 with spliced pole 4, make

sliding closure

403 and 3 screw thread of cutter dish rotate and be connected, make cutter dish 3 at the in-process of high-speed rotation cutting, connect through the mutual meshing of two sets of screw threads, guarantee that the not hard up phenomenon of screw thread can not appear in the cutter dish 3, guarantee the security in the cutting process, reduce the emergence of potential safety hazard.

Further, the diameter length of fixed orifices 101 equals the diameter length of connecting hole 202, and blade 1 suits with standing groove 201 size, through the cooperation of fixed orifices 101 with connecting hole 202, make blade 1 can pass through bolt fixed mounting in standing groove 201 department, make blade 1 and cutter arbor 2 form a whole, when blade 1 fixed mounting is in standing groove 201 department, the knife tip of blade 1 one side is outwards, cut the work piece, the knife tip of blade 1 opposite side is inwards, be located knife tip guard slot 203, avoid when cutting the work piece, the knife tip of opposite side collides with cutter arbor 2, lead to the knife tip to appear collapsing mouthful, cause the waste of blade 1.

Further, jet-propelled pipe 302 is cyclic annular evenly distributed inside cutter dish 3, and jet-propelled pipe 302 runs through cutter dish 3 and is connected with gas pocket 303, make cutter dish 303 rotate at a high speed when cutting the work piece, jet-propelled pipe 302 blows out high-pressure air through gas pocket 303, blow away the piece of 1 cutting department of blade, avoid at the cutting work piece in-process, the piece piles up too much and leads to cutting heat can not take away through the piece, thereby conduct on blade 1, cause the wearing and tearing speed of blade 1 to accelerate.

Further, handle of a knife 5 is made for stainless steel material, stainless steel material has characteristics such as good corrosion resistance and mechanical strength height, avoid handle of a knife 5 the rusty condition appear in long-time use, influence the lathe to handle of a knife 5's clamping, and then lead to appearing skidding the condition that drops in the cutter to work piece cutting in-process appearance, the characteristics that its mechanical strength is high can guarantee that the lathe carries out the clamping to handle of a knife 5 when, can not leave the impression on the handle of a knife 5 on the surface, and the cutter can bear bigger effort when cutting the work piece, avoid handle of a knife 5 atress to exceed the bearing range and appear the fracture.

When the dry cutting tool for processing gear teeth is used, before the dry cutting tool is used, all parts of the tool are checked to determine whether an abnormal problem exists or not, so that potential safety hazards during workpiece cutting are avoided, then the dry cutting tool is used by matching bolts, the connecting holes 202 and the fixing holes 101, the blade 1 is fixedly installed on the placing groove 201, the tool point on one side of the blade 1 faces outwards, the tool point on the other side faces inwards and is positioned in the tool point protecting groove 203, so that the situation that the tool point of the blade 1 is damaged and the blade 1 is wasted due to the fact that the tool point is damaged due to the fact that the tool point is collided with the tool bar 2 in the cutting process is avoided, then after the tool bar 2 on one side of the tool disc 3 is installed on the blade 1, the dry cutting tool is connected with the thread meshing of the outer wall of the threaded column 401 through the thread on the inner wall of the connecting column 4, then the sliding cover 403 on the surface of the sliding cover 403 is moved, and is connected with the thread meshing of the outer wall of the connecting column 4 through the thread of the connecting column 403, the slide cover 403 is connected to one side of the cutter disc 3 through the thread rotation, the cutter disc 3 can be stably connected with the cutter handle 5 through the meshing connection of two groups of threads, the situation that the threads of the connecting column 4 are loosened when the cutter disc 3 rotates at a high speed is avoided, and further safety accidents are caused, the cutter handle 5 is connected with a machine tool, so that the machine tool drives the cutter disc 3 to rotate to carry out cutting operation on a workpiece, then compressed air is conveyed into the air jet pipe 302 inside the cutter disc 3 through the air conveying pipe 501 inside the cutter handle 5 and is jetted out from the air hole 303 on one side of the protective cover 301, chips generated when the cutter disc 3 carries out cutting processing on the workpiece can be blown off, the chips are prevented from being accumulated at a cutting part in the cutting processing process, the cutting precision is influenced, meanwhile, most of heat generated in the cutting process exists in the chips, and the cutting heat in the accumulated chips can be conducted to the blade 1, make the high temperature of blade 1, influence the life of blade 1, when blade 1 appears disconnected sword or the circumstances that the sword is dull, the accessible is turned round sliding closure 403 and cutter disc 3, dismantles cutter disc 3 and carries out the tool changing, convenient and fast.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a gear tooth processing is with cutting utensil futilely, includes blade (1), cutter arbor (2) and cutter dish (3), its characterized in that, fixed orifices (101) have been seted up at blade (1) top, blade (1) bottom fixedly connected with cutter arbor (2), standing groove (201) have been seted up at cutter arbor (2) top, connecting hole (202) have been seted up on standing groove (201) surface, cutter point guard slot (203) have been seted up to standing groove (201) one side, cutter arbor (2) top fixedly connected with cutter dish (3), cutter dish (3) one side fixedly connected with visor (301), cutter dish (3) inside is provided with a plurality of jet-propelled pipes (302), a plurality of gas pocket (303) have been seted up to visor (301) one side, and jet-propelled pipe (302) and gas pocket (303) quantity are unanimous, cutter dish (3) one side fixedly connected with spliced pole (4), the gas-insulated metal-insulated.

2. The dry cutting tool for gear tooth processing according to claim 1, characterized in that the surface of the blade (1) is provided with two layers of coatings, wherein the two layers of coatings are respectively a tungsten carbide soft coating and an aluminum titanium nitride hard coating, the aluminum titanium nitride hard coating covers the surface of the blade (1), and the aluminum titanium nitride hard coating covers the tungsten carbide soft coating.

3. The dry cutting tool for gear tooth processing according to claim 1, characterized in that the inner wall and the outer wall of the connecting column (4) are both provided with threads, the threads on the outer wall of the connecting column (4) are engaged with the threads on the inner wall of the sliding cover (403), the threads on the outer wall of the threaded column (401) are provided with threads, and the threads on the inner wall of the connecting column (4) are engaged with the threads on the outer wall of the threaded column (401).

4. The dry cutting tool for gear tooth processing according to claim 1, characterized in that the diameter length of the fixing hole (101) is equal to the diameter length of the connecting hole (202), and the blade (1) is adapted to the size of the placing groove (201).

5. The dry cutting tool for gear tooth processing according to claim 1, wherein the air injection pipes (302) are uniformly distributed in the tool disk (3) in an annular shape, and the air injection pipes (302) penetrate through the tool disk (3) and are connected with the air holes (303).

6. The dry cutting tool for gear tooth processing according to claim 1, characterized in that the tool shank (5) is made of stainless steel material.