CN213857108U

CN213857108U - Cutting machining tool

Info

Publication number: CN213857108U
Application number: CN202022260524.8U
Authority: CN
Inventors: 郑李娟; 王成勇; 谢奕彬; 赖志伟
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-08-03
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses a cutting machining tool, which comprises a tool handle and a blade, wherein the tool handle is provided with an installation notch, the middle part of the blade is provided with an installation hole, and the blade is fixed in the installation notch through the installation hole; the tool bit part of the blade is provided with a first through hole, the bottom of the installation notch is provided with a first blind hole communicated with the first through hole, the tool handle is further provided with a second blind hole communicated with the first blind hole, and the second blind hole is used for being connected with a pneumatic quick connector. The utility model discloses a cutter adopts the lubricated cooling mode of trace to carry out cutting process and can make lubricating oil mist get into cutting area effectively, and processing is effectual.

Description

Cutting machining tool

Technical Field

The utility model relates to a cutter technical field, concretely relates to cutting process cutter.

Background

The micro-lubrication technology (MQL) is a cutting cooling lubrication method in which a compressed gas and a trace amount of lubricating fluid are mixed and vaporized, and then the mixture is injected into a machining area to effectively lubricate a machining part between a tool and a workpiece. MQL can greatly reduce the friction between 'cutter-workpiece' and 'cutter-chip', and plays roles in inhibiting temperature rise, reducing cutter abrasion, preventing adhesion and improving the processing quality of workpieces. The MQL uses few lubricating liquid, but has very obvious effect, thereby not only improving the work efficiency, but also not polluting the environment. And as long as the MQL technology is used properly, the machined cutter, workpiece and chips are dry, the post-treatment is avoided, the clean chips can be recycled after being compressed, and the environment is not polluted completely, so the technology is also called as quasi-dry cutting.

In recent years, people are increasingly conscious of environmental protection, and a clean and pollution-free green production mode is advocated in the production process. The traditional cutting lubrication mode in the machining field mainly comprises lubricating oil, emulsion, pure water and the like; however, the lubricating oil is a 'large water flood irrigation' type cooling and lubricating mode, the utilization rate of the lubricating oil is low, and the pollution is serious. Wherein the cuttings carrying a large amount of lubricant are the main output of pollution, and the cost for disposing the cuttings becomes a significant expenditure in the production cost of enterprises. In view of the above problems, the MQL cooling and lubricating system of the "drip irrigation" type has been attracting attention. Compared with the traditional cooling and lubricating mode, the using amount of the MQL lubricant is far lower than that of the former lubricant, and the utilization rate of the lubricant is also far higher than that of the former lubricant.

However, the conventional MQL has many problems in practical use, including: firstly, the application in high-temperature cutting is difficult, and the externally-sprayed atomized oil is easy to volatilize prematurely, so that almost no oil mist can enter a cutting area, and further MQL (medium-to-high temperature) fails. Secondly, the range of oil mist injection is large, but only a small part of oil mist really reaching the cutting area has limited lubricating effect on the chip area. Thirdly, in the actual machining process (such as turning), airflow is easy to spray on the surface of the chip, and the contact pressure and the contact length of the chip and the rake face are increased. And fourthly, the noise problem is also prominent in the actual processing process. Therefore, the existing minimal quantity lubrication technology (MQL) is in need of improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the oil mist that adopts the micro-lubricating technique cutting process to exist among the above-mentioned prior art can be difficult to enter into cutting area and make the problem that the micro-lubricating cooling became invalid, provide a cutting process cutter, utilize this cutter to adopt the micro-lubricating cooling mode to carry out cutting process and can make lubricating oil mist get into cutting area effectively, process effectually.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cutting machining tool comprises a tool handle and a blade, wherein an installation notch is formed in the tool handle, an installation hole is formed in the middle of the blade, and the blade is fixed in the installation notch through the installation hole; the tool bit part of the blade is provided with a first through hole, the bottom of the installation notch is provided with a first blind hole communicated with the first through hole, the tool handle is further provided with a second blind hole communicated with the first blind hole, and the second blind hole is used for being connected with a pneumatic quick connector.

Furthermore, the second blind hole penetrates the interior of the tool handle from the back surface of the tool handle and is communicated with the first blind hole.

Furthermore, the inner wall of the second blind hole is provided with connecting threads.

Furthermore, a first counter sink is further arranged at the bottom of the mounting notch at the position of the first blind hole, and the aperture of the first counter sink is larger than that of the first blind hole; still include the sealing washer, the sealing washer assembly is in the first counter sink.

Furthermore, the blade is also provided with a second counter bore at the position of the first through hole, the aperture of the second counter bore is larger than that of the first through hole, and the sealing ring is arranged in the first counter bore and the second counter bore.

Furthermore, the cutting machining tool further comprises a cushion block, and the cushion block and the blade are sequentially fixed on the installation notch from bottom to top.

Furthermore, the cushion block is provided with a second through hole, and the second through hole is communicated with the first through hole and the first blind hole.

Furthermore, a third counter bore is further arranged at the position of the second through hole, the aperture of the third counter bore is larger than that of the second through hole, and the sealing ring is assembled in the first counter bore and the third counter bore.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a knife tip position of blade is equipped with first through-hole, the bottom of installation breach is equipped with the first blind hole with first through-hole intercommunication, the handle of a knife still is equipped with the second blind hole with first blind hole intercommunication, in the use, pneumatic quick-operation joint is connected to the second blind hole, be connected with emollient connecting tube through pneumatic quick-operation joint, carry out cutting machining man-hour, trace emollient directly gets into first blind hole through the second blind hole by pneumatic quick-operation joint, again by first blind hole flow direction first through-hole, make trace emollient can act on the core region in the cutting course of working, take away more because of the heat that the cutting produced, further this regional temperature of reduction, make the smear metal discharge more smooth and easy, the cutter has been protected, the service life thereof is prolonged, the cutting performance of cutter and the surface quality of machined surface have been improved simultaneously.

Drawings

Fig. 1 is a schematic structural view of a cutting tool according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is an exploded view of a cutting tool according to an embodiment of the present invention.

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. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1 to 3, a cutting tool includes a shank 10 and a blade 20. A mounting notch 14 is formed at the front end of the handle 10, and the mounting notch 14 is used for mounting a fixed blade 20. The mounting notches 14 are shaped to match the shape of the blade 20, and are each in the shape of a quadrangular prism. A mounting hole (not shown) is formed in the middle of the blade 20, and the blade 20 is fixed in the mounting notch 14 by a connecting portion such as a screw passing through the mounting hole, so that the blade 20 is fixedly connected to the tool holder 10. A first through hole 21 is provided in the blade 20 near the tip. The bottom of the installation notch 14 is provided with a first blind hole 11, and the first blind hole 11 penetrates through the bottom surface of the installation notch 14 and vertically penetrates into the tool shank 10 downwards. After the blade 20 is mounted on the tool holder 10, the first through hole 21 is communicated with the first blind hole 11. A second blind hole 12 is also provided in the shank 10 in a region outside the mounting recess 14. The second blind hole 12 penetrates into the tool shank 10 from the surface of the tool shank 10 outside the installation notch 14 and is communicated with the first blind hole 11. Second blind hole 12 is used for connecting pneumatic quick-operation joint 30, make the trace lubricant that uses during cutting process can pass into second blind hole 12 through pneumatic quick-operation joint 30, pass through first blind hole 11 again, first through-hole 21 enters into the cutting process core region, make the trace lubricant can act on the core region in the cutting process, take away more because of the heat that the cutting produced, this regional temperature of further reduction, it is more smooth and easy to make the smear metal discharge, the cutter has been protected, the service life thereof is prolonged, the cutting performance of cutter and the surface quality of machined surface have been improved simultaneously.

As an optional embodiment of the present invention, the second blind hole 12 is formed by penetrating the back surface of the tool holder 10 into the interior of the tool holder 10 and communicating with the first blind hole 11.

Illustratively, a connecting thread is arranged on the inner wall of the second blind hole 12, and the pneumatic quick coupling 30 is screwed through the connecting thread to realize fixation.

Illustratively, a first counter bore 13 is further arranged at the bottom of the mounting notch 14 at the position of the first blind hole 11, and the aperture of the first counter bore 13 is larger than that of the first blind hole 11; a sealing ring 50 is also included, the sealing ring 50 being fitted in the first counterbore 13.

Illustratively, the insert 20 is further provided with a second counterbore (not shown) at the position of the first through hole 21, the diameter of the second counterbore is larger than that of the first through hole 21, and the seal ring 50 is disposed in the first counterbore 13 and the second counterbore.

As an optional embodiment of the present invention, the cutting tool further includes a pad 40, and the mounting notch 14 is sequentially fixed from bottom to top on the pad 40 and the blade 20. Specifically, the cushion block is provided with a second through hole 41, and the second through hole 41 is communicated with the first through hole 21 and the first blind hole 11.

When the cushion block 40 is provided, since the cushion block 40 directly contacts the bottom of the installation notch 14, a third counterbore (not shown) is provided at the position of the second through hole 41 on the surface of the cushion block 40 contacting the bottom of the installation notch 14, the diameter of the third counterbore is larger than that of the second through hole 41, and the seal ring 50 is assembled in the first counterbore 13 and the third counterbore.

The method of using the cutting tool of the present embodiment is as follows:

first, the cutting tool is assembled: the sealing ring 50 is placed in the first counter bore 13, the block 40 is placed in the installation notch 14, the third counter bore wraps the portion, exposed out of the first counter bore 13, of the sealing ring 50, then the blade 20 is placed on the cushion block 40, and the blade 20 and the cushion block 40 are fixed on the installation notch 14 through fixing screws.

Secondly, installing a pneumatic quick connector: and winding a waterproof adhesive tape on the threaded end of the pneumatic quick connector 30, and then screwing the pneumatic quick connector 30 into the second blind hole 12 of the cutter handle 10.

Next, the tool holder is mounted on a tool rest of the numerically controlled machine tool, and then the cutting tool is mounted on the tool holder. The blade holder is preferably an ultrasonic blade holder.

Finally, the lubricant connection tube is connected to the pneumatic quick coupling 30, and then the airtightness of the apparatus is checked. Checking whether the whole device is firm or not and whether an interference phenomenon is generated or not. And after the condition that the cutting fluid is not correct is confirmed, starting the ultrasonic device, starting the lubricant introducing device and starting the machine tool to execute corresponding cutting operation.

The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A cutting tool, characterized by: the tool comprises a tool handle and a blade, wherein the tool handle is provided with an installation notch, the middle part of the blade is provided with an installation hole, and the blade is fixed in the installation notch through the installation hole; the tool bit part of the blade is provided with a first through hole, the bottom of the installation notch is provided with a first blind hole communicated with the first through hole, the tool handle is further provided with a second blind hole communicated with the first blind hole, and the second blind hole is used for being connected with a pneumatic quick connector.

2. The cutting machining tool of claim 1, wherein: the second blind hole penetrates the interior of the tool handle from the back surface of the tool handle and is communicated with the first blind hole.

3. The cutting machining tool of claim 1, wherein: and the inner wall of the second blind hole is provided with a connecting thread.

4. The cutting machining tool of claim 1, wherein: a first counter sink is further arranged at the bottom of the mounting notch at the position of the first blind hole, and the aperture of the first counter sink is larger than that of the first blind hole; still include the sealing washer, the sealing washer assembly is in the first counter sink.

5. The cutting machining tool of claim 4, wherein: the blade is still equipped with the second counter sink in first through-hole position, the aperture of second counter sink is greater than the aperture of first through-hole, the sealing washer is arranged in first counter sink and second counter sink.

6. The cutting machining tool of claim 4, wherein: the mounting notch is sequentially fixed with the cushion block and the blade from bottom to top.

7. The cutting machining tool of claim 6, wherein: the cushion block is provided with a second through hole which is communicated with the first through hole and the first blind hole.

8. The cutting machining tool of claim 7, wherein: and a third counter bore is further arranged at the position of the second through hole, the aperture of the third counter bore is larger than that of the second through hole, and the sealing ring is assembled in the first counter bore and the third counter bore.