CN111618367A

CN111618367A - Reamer for numerical control machine tool and using method thereof

Info

Publication number: CN111618367A
Application number: CN202010124956.8A
Authority: CN
Inventors: 王高书
Original assignee: Kunshan Hongtaibo Cnc Tool Co ltd
Current assignee: Kunshan Hongtaibo Cnc Tool Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-09-04

Abstract

The invention relates to the field of numerical control machining, in particular to a reamer for a numerical control machine tool and a using method thereof. It includes the reamer body, and the reamer body includes by supreme first cutting portion, second cutting portion, connecting portion, handle of a knife and the cooling channel who runs through the reamer body of setting with one heart down, and the second cutting portion passes through connecting portion and is connected with the handle of a knife, all is provided with the play liquid hole of a plurality of opening orientation handle of a knife on the outer disc of first cutting portion and the outer disc of second cutting portion, is provided with the breather pipe in the cooling channel. The invention has the advantages that: through cooling channel and the cutting bits that produce in connecting the play liquid hole on cooling channel can be effectual in reamer body and the reamer body course of working cool off, through the setting of breather pipe and gas outlet, can treat the bottom in machined hole and strike to with cutting bits blow off the center, reduce the high temperature and cut the destruction of bits to the reamer body.

Description

Reamer for numerical control machine tool and using method thereof

Technical Field

The invention relates to the field of numerical control machining, in particular to a reamer for a numerical control machine tool and a using method thereof.

Background

The reamer need cool off when using, avoids operating time overlength and the blade of the reamer that causes is overheated, establishes a pair cutter head water jet at present during operation, and the splash is spattered all around when spraying, causes the waste to the water resource easily. Or a reamer with an internal channel for facilitating the flow of the cooling liquid to the cutting edge is used. Only the mouth part of the reamer can be cooled and discharged, and the cutting chips at the head part of the reamer cannot be effectively discharged and cooled.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a reamer for a numerical control machine tool and a using method thereof, which are convenient for cooling cutting chips and the reamer, can enhance the chip removal effect of the reamer, reduce the damage of high temperature to the reamer and improve the machining efficiency of the reamer.

The embodiment of the application discloses a reamer for a numerical control machine tool, which is used for processing stepped holes, the reamer for the numerical control machine tool comprises a reamer body, the reamer body comprises a first cutting part, a second cutting part, a connecting part, a tool handle and a cooling channel penetrating through the reamer body, the first cutting part, the second cutting part and the tool handle are concentrically arranged from bottom to top, the outer circular surface of the first cutting part and the outer circular surface of the second cutting part are respectively provided with a plurality of liquid outlet holes with openings facing the tool handle, the cooling channel is internally provided with a vent pipe made of high-temperature resistant materials, the tool handle is provided with a matching hole concentrically arranged with the cooling channel, the matching hole is internally provided with an annular connecting piece, the central position of the annular connecting piece is provided with a through hole for passing through the vent pipe, the circumference of the annular connecting piece is provided with a plurality of liquid inlet holes communicated with the cooling channel, the bottom of the first cutting part is provided with an air outlet communicated with the vent pipe, and the diameter of the first cutting part is smaller than that of the second cutting part.

Further, rotatable coupling has the adjustable ring that is used for adjusting the flow of coolant liquid on the breather pipe, the adjustable ring is including connecting a plurality of on the breather pipe rotates the cover, connects rotate a plurality of baffle on the cover and connect the outlying promotion ring of baffle, the quantity of promotion ring with the position one-to-one of baffle, the quantity of baffle with the quantity one-to-one that rotates the cover, it is in to rotate the cover setting the top of annular connecting piece.

Furthermore, the baffles are all concentrically arranged fan-shaped structures, and the coverage area of each fan-shaped structure is different.

Further, the area of the fan-shaped structure is not more than one fourth of the axial sectional area of the matching hole.

Furthermore, the first cutting part is detachably connected with the second cutting part, and the upper end of the first cutting part is connected with the lower end of the second cutting part.

Further, the bottoms of the first cutting portion and the second cutting portion are both arc-shaped structures protruding downwards, and the cooling channel penetrates through the arc-shaped structures.

Further, the depth of the matching hole is smaller than the distance between the rotating sleeve and the annular connecting piece.

Further, the air outlet is located at the bottom of the circular arc-shaped structure on the first cutting part, and a backflow preventing structure is arranged at the joint of the air outlet and the vent pipe.

Furthermore, a plurality of cutting edges are uniformly arranged on the first cutting part and the second cutting part respectively, and one cutting edge is arranged on the upper side of each liquid outlet hole.

The invention also provides a using method of the reamer for the numerical control machine tool, which is used for the reamer for the numerical control machine tool and comprises the following steps:

s1, mounting the reamer body: connecting the first cutting part to the second cutting part, ensuring the center lines of the first cutting part and the second cutting part to be superposed in the mounting process, and fixing the reamer body on the cutter mounting position of the lathe after ensuring the stable connection;

s2, static test: introducing the cutting fluid into the cooling channel, observing whether each liquid outlet can normally spray the cutting fluid, and continuously recovering the cutting fluid in the test process;

s3, dynamic testing, namely providing a test piece, starting a lathe, driving a reamer body to rotate, introducing cutting fluid into a cooling channel, introducing high-pressure gas into a vent pipe, processing the test piece through the reamer body, observing whether the cutting fluid and cutting chips generated by cutting can be normally discharged, if so, carrying out the next step, if not, improving the liquid inlet amount by rotating the angle of a pushing ring on an adjusting ring to drive a baffle plate under the static state of the reamer body, and then carrying out the dynamic testing again;

s4, processing a workpiece, providing the workpiece to be processed, starting a lathe, driving a reamer body to rotate, introducing cutting fluid into a cooling channel, introducing high-pressure gas into a vent pipe, processing the workpiece to be processed, observing whether the cutting fluid and cutting chips generated by cutting can be normally discharged in the processing process, if not, improving the liquid inlet amount by rotating the angle of a pushing ring on an adjusting ring to drive a baffle plate in the static state of the reamer body, and then carrying out dynamic test again.

The invention has the following beneficial effects: the reamer for the numerical control machine tool comprises a reamer body, wherein the reamer body comprises a first cutting part, a second cutting part, a connecting part, a tool holder and a cooling channel penetrating through the reamer body, which are concentrically arranged from bottom to top, the second cutting part is connected with the tool holder through the connecting part, a plurality of liquid outlet holes with openings facing the tool holder are respectively arranged on the outer circular surface of the first cutting part and the outer circular surface of the second cutting part, a vent pipe made of high-temperature resistant materials is arranged in the cooling channel, cutting scraps generated in the machining process of the reamer body and the reamer body can be effectively cooled through the cooling channel and the liquid outlet holes connected to the cooling channel, the bottoms of holes to be machined can be impacted through the vent pipe and an air outlet, so that the cutting scraps are blown away from the center, the damage of the high-temperature cutting scraps to the reamer body is reduced, in addition, the outlet direction of the liquid, the discharge efficiency of cutting bits in the reamer body course of working can be improved, and then the machining efficiency is improved.

According to the using method of the reamer for the numerical control machine tool, the static test and the dynamic test are performed on the reamer body, the running conditions of the liquid outlet hole and the vent pipe can be tested, the cooling effect of the reamer body and the discharging effect of cutting chips are guaranteed, and therefore stepped holes can be machined more efficiently.

In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a reamer for a numerical control machine tool in an embodiment of the present invention.

FIG. 2 is a schematic view of the adjustment ring and annular connector of FIG. 1.

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, in a preferred embodiment of the present invention, the reamer for a numerical control machine tool is used for machining a stepped hole, the reamer for a numerical control machine tool includes a reamer body 1, the reamer body 1 includes a first cutting portion 11, a second cutting portion 12, a connecting portion 13, a shank 14 and a cooling channel 15 penetrating through the reamer body 1, the second cutting portion 12 is connected to the shank 14 through the connecting portion 13, a plurality of liquid outlet holes 16 having openings facing the shank 14 are formed on an outer circumferential surface of the first cutting portion 11 and an outer circumferential surface of the second cutting portion 12, a vent pipe 17 made of a high temperature resistant material is formed in the cooling channel 15, a matching hole 18 is formed in the shank 14 concentrically with the cooling channel 15, an annular connecting member 19 is formed in the matching hole 18, a through hole (not shown) for passing through the vent pipe 17 is formed in a center position of the annular connecting member 19, a plurality of liquid inlet holes 191 communicated with the cooling channel 15 are formed in the circumference of the annular connecting piece 19, an air outlet 111 communicated with the air pipe 17 is formed in the bottom of the first cutting part 11, and the diameter of the first cutting part 11 is smaller than that of the second cutting part 12. Can effectually cool off the cutting bits that produce in reamer body 1 and the 1 course of working of reamer body through cooling channel 15 and the play liquid hole 16 of connection on cooling channel 15, through the setting of breather pipe 17 and gas outlet 111, can treat the bottom of processing hole and strike, thereby will cut the bits and blow off the center, reduce the high temperature cutting bits to the destruction of reamer body 1, in addition, go out the export direction of liquid hole 16 towards handle of a knife 14, can improve the discharge efficiency of cutting bits in the 1 course of working of reamer body, and then improve machining efficiency.

In the above embodiment, the breather pipe 17 is rotatably connected with an adjusting ring 171 for adjusting the flow rate of the cooling liquid, the adjusting ring 171 includes a plurality of rotating sleeves 1711 connected to the breather pipe 17, a plurality of baffles 1712 connected to the rotating sleeves 1711, and pushing rings 1713 connected to the peripheries of the baffles 1712, the pushing rings 1713 are in one-to-one correspondence with the positions of the baffles 1712, the baffles 1712 are in one-to-one correspondence with the rotating sleeves 1711, and the rotating sleeves 1711 are disposed above the annular connecting member 19. The baffles 1712 are all concentrically arranged fan-shaped structures, and the coverage area of each fan-shaped structure is different. The area of the fan-shaped structure is not more than one fourth of the axial sectional area of the matching hole. Through setting the sector structure of different areas with baffle 1712, can cover the feed liquor hole 191 of seting up on the annular connecting piece through one or more baffle 1712 according to actual need to the feed liquor volume in cooling channel 15 is adjusted, thereby conveniently adjusts the feed liquor volume of adding man-hour according to the processing environment of difference, improves the cooling effect to first cutting portion 11, second cutting portion 12 and cutting bits in the course of working.

In the above embodiment, the first cutting portion 11 is detachably connected to the second cutting portion 12, and the upper end of the first cutting portion 11 is connected to the lower end of the second cutting portion 12. Through establishing first cutting portion 11 and second cutting portion 12 to detachable connection, not only can be through connecting first cutting portion 11 and second cutting portion 12 and realize the processing to the shoulder hole, can also adopt second cutting portion 12 to process the haplopore alone, conveniently set first cutting portion 11 to different sizes moreover to conveniently process the shoulder hole of different specifications.

In the above embodiment, the bottom portions of the first cutting portion 11 and the second cutting portion 12 are both arc-shaped structures (not shown) protruding downward, and the cooling channel 15 penetrates through the arc-shaped structures. The bottom parts of the first cutting part 11 and the second cutting part 12 are arranged to be in a circular arc structure, so that the feed is convenient, and the processing efficiency is improved.

In the above embodiment, in order to facilitate the rotation of the push ring 1713 to rotate the retainer 1712 connected to the push ring 1713, the depth of the matching hole 18 is smaller than the distance between the rotating sleeve 1711 and the annular connecting member 19, so as to prevent the mutual interference between the push ring 1713 and the matching hole 18.

In the above embodiment, the air outlet 111 is located at the bottom of the circular arc structure of the first cutting portion 11, and a backflow preventing structure is disposed at the joint of the air outlet 111 and the vent pipe 17. Through the setting of anti-current structure, can prevent that the atmospheric pressure from flowing backwards when unusual, improve the stability of processing. Since the anti-backflow structure belongs to a common structure for preventing fluid backflow, such as an anti-backflow valve, and the like, only needs to be selected as required, the detailed description thereof is omitted here.

In the above embodiment, the first cutting portion 11 and the second cutting portion 12 are respectively and uniformly provided with a plurality of cutting edges 101, and one cutting edge 101 is arranged on the upper side of each liquid outlet hole 16. The cutting edges 101 correspond to the liquid outlet holes 16 one by one, so that the cooling effect of the cutting liquid on the cutting edges 101 in the cutting process can be effectively improved.

s1, mounting the reamer body 1: connecting the first cutting part 11 to the second cutting part 12, ensuring the central lines of the first cutting part 11 and the second cutting part 12 to be superposed in the mounting process, and fixing the reamer body 1 on the cutter mounting position of a lathe after ensuring the connection to be stable;

s2, static test: introducing the cutting fluid into the cooling channel, observing whether each liquid outlet 16 can normally spray the cutting fluid, and continuously recovering the cutting fluid in the test process;

s3, performing dynamic test, providing a test piece, starting a lathe, driving the reamer body 1 to rotate, introducing cutting fluid into the cooling channel 15, introducing high-pressure gas into the vent pipe 17, processing the test piece through the reamer body 1, observing whether the cutting fluid and cutting chips generated by cutting can be normally discharged, if yes, performing the next step, if not, in the static state of the reamer body 1, improving the liquid inlet amount by rotating the angle of the driving ring 1713 on the adjusting ring 171 to drive the baffle 1712, and then performing the dynamic test again;

s4, processing the workpiece, providing the workpiece to be processed, starting a lathe, driving the reamer body 1 to rotate, simultaneously introducing the cutting fluid into the cooling channel 15, introducing high-pressure gas into the vent pipe 17, processing the workpiece to be processed, observing whether the cutting fluid and cutting chips generated by cutting can be normally discharged in the processing process, if not, under the static state of the reamer body 1, improving the liquid inlet amount by rotating the angle of the pushing ring 1713 on the adjusting ring 171 to drive the baffle 1712, and then carrying out dynamic test again.

According to the using method of the reamer for the numerical control machine tool, the static test and the dynamic test are performed on the reamer body 1, the running conditions of the liquid outlet hole 16 and the air pipe 17 can be tested, the cooling effect of the reamer body 1 and the discharging effect of cutting chips are guaranteed, and therefore a stepped hole can be machined more efficiently.

The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A reamer for a numerical control machine tool is used for machining stepped holes and is characterized by comprising a reamer body, wherein the reamer body comprises a first cutting part, a second cutting part, a connecting part, a tool handle and a cooling channel penetrating through the reamer body, the first cutting part, the second cutting part, the connecting part, the tool handle and the second cutting part are concentrically arranged from bottom to top, the second cutting part is connected with the tool handle through the connecting part, a plurality of liquid outlet holes with openings facing the tool handle are formed in the outer circular surface of the first cutting part and the outer circular surface of the second cutting part, a vent pipe made of high-temperature resistant materials is arranged in the cooling channel, matching holes concentrically arranged with the cooling channel are formed in the tool handle, an annular connecting piece is arranged in each matching hole, a through hole used for passing through the vent pipe is formed in the central position of the annular connecting piece, a plurality of liquid inlet holes communicated with the cooling channel are formed in the circumference, the bottom of the first cutting part is provided with an air outlet communicated with the vent pipe, and the diameter of the first cutting part is smaller than that of the second cutting part.

2. The reamer for the numerical control machine tool according to claim 1, wherein the breather pipe is rotatably connected with an adjusting ring for adjusting the flow rate of the cooling liquid, the adjusting ring comprises a plurality of rotating sleeves connected to the breather pipe, a plurality of baffles connected to the rotating sleeves and a pushing ring connected to the periphery of the baffles, the number of the pushing rings corresponds to the positions of the baffles one by one, the number of the baffles corresponds to the number of the rotating sleeves one by one, and the rotating sleeves are arranged above the annular connecting piece.

3. The reamer for the numerical control machine tool according to claim 2, wherein the plurality of baffles are all sector structures concentrically arranged, and the coverage area of each sector structure is different.

4. The reamer for the numerical control machine tool according to claim 2, wherein the area of the fan-shaped structure is not more than one fourth of the axial sectional area of the matching hole.

5. The reamer for the numerical control machine tool according to claim 1, wherein the first cutting portion is detachably connected to the second cutting portion, and an upper end of the first cutting portion is connected to a lower end of the second cutting portion.

6. The reamer for the numerical control machine tool according to claim 1, wherein the bottom of each of the first cutting portion and the second cutting portion has a downwardly convex circular arc-shaped structure, and the cooling channel penetrates through the circular arc-shaped structure.

7. The reamer for the numerical control machine tool according to claim 1, wherein the depth of the matching hole is smaller than the distance of the rotating sleeve guiding the annular connector.

8. The reamer for the numerical control machine tool according to claim 6, wherein the air outlet is positioned at the bottom of the circular arc-shaped structure on the first cutting part, and a backflow prevention structure is arranged at the joint of the air outlet and the vent pipe.

9. The reamer for the numerical control machine tool according to claim 1, wherein a plurality of cutting edges are respectively and uniformly provided on the first cutting portion and the second cutting portion, and one cutting edge is provided on an upper side of each of the liquid outlet holes.

10. A method for using a reamer for a numerical control machine tool, which is used for the reamer for the numerical control machine tool according to any one of claims 1 to 9, comprising the steps of: