CN218575006U

CN218575006U - Boring cutter for processing

Info

Publication number: CN218575006U
Application number: CN202222805421.4U
Authority: CN
Inventors: 李珅贤; 李月明; 刘朗; 叶永德; 吕海荣; 裴苗壮
Original assignee: Guangdong Hongte Precision Technology Zhaoqing Co ltd
Current assignee: Guangdong Hongte Precision Technology Zhaoqing Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-07
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to a boring cutter for processing, which comprises a cutter handle inserted with a machine tool, a cutter seat arranged at the front end of the cutter handle and a cutting edge arranged on the side wall close to the front end of the cutter seat, wherein the cutter handle and the cutter seat are coaxial; a first spraying channel is arranged in the cutter handle, and one end of the first spraying channel extends to the end part of the rear end of the cutter handle and is used for being communicated with a cutting fluid spraying device of a machine tool; a second spraying channel is arranged in the tool apron, one end of the second spraying channel is communicated with the other end of the first spraying channel, and the other end of the second spraying channel extends to the side wall of the tool apron to form a spraying opening; the spraying opening faces the cutting edge, so that the cutting fluid provided by the cutting fluid spraying device sequentially passes through the first spraying channel and the second spraying channel and is sprayed to the cutting edge from the spraying opening. The utility model has simple design, low manufacturing cost and good cooling effect and lubricating effect; meanwhile, the metal chips accumulated on the cutting edge can be effectively removed, the abrasion of the cutting edge is reduced, and the processing quality of workpieces is improved.

Description

Boring cutter for processing

Technical Field

The utility model relates to a technical field of processing cutter especially relates to a boring cutter of processing usefulness.

Background

In the process of machining metal products, for through holes with assembly or dimensional accuracy of 0.01MM or even stricter, finish machining needs to be carried out on a numerical control machine tool. In order to ensure the machining precision, a metal cutter is generally used for machining. The boring cutter is one of the machining tools commonly used for machining a machine tool, and is often used for machining a high-precision hole in a workpiece. During machining, a cutting fluid spraying device disposed near a machining area is generally required to spray a cutting fluid to the tool and the workpiece to lubricate the tool and the workpiece. However, the cutting edge of the boring cutter is short, the spraying angle of the cutting fluid is limited, and the cutting fluid is difficult to spray onto the cutting edge, so that the lubricating effect of the boring cutter and a workpiece is poor in the machining process. In addition, since the cutting fluid is difficult to spray to the cutting edge of the boring cutter, the cutting edge surface on which metal chips are accumulated is generated in the machining process, and the metal chips cannot be removed, and the machining precision and the surface machining effect are affected to a certain extent by excessive metal chips, and the production cost and the production efficiency are affected.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a boring cutter of processing usefulness, it has lubricated effectual to can effectively clear away the advantage of the metal fillings that accumulate on the cutting edge.

A boring cutter for machining comprises a cutter handle inserted with a machine tool, a cutter holder arranged at the front end of the cutter handle and a cutting edge arranged on the side wall close to the front end of the cutter holder, wherein the cutter handle and the cutter holder are coaxial; a first spraying channel is arranged in the cutter handle, and one end of the first spraying channel extends to the end part of the rear end of the cutter handle and is used for being communicated with a cutting fluid spraying device of a machine tool; a second spraying channel is arranged in the tool apron, one end of the second spraying channel is communicated with the other end of the first spraying channel, and the other end of the second spraying channel extends to the side wall of the tool apron to form a spraying opening; the spraying port faces the blade, so that the cutting fluid provided by the cutting fluid spraying device sequentially passes through the first spraying channel and the second spraying channel, and is sprayed to the blade from the spraying port.

Compared with the prior art, the utility model discloses a be used for supplying the first spray passage and the second spray passage that cutting fluid flows at the inside setting of boring cutter, make the cutting fluid of processing usefulness spout to cutting edge and work piece from the inside of boring cutter, when solving from the boring cutter outside when spraying the cutting fluid, be difficult to ensure that the cutting fluid can spray to the cutting edge of boring cutter for the lubricated effect of boring cutter and work piece is relatively poor in the course of working, and is difficult to clear away the problem of the metal fillings of cutting edge surface accumulation.

Further, the area of the cross section of the second spray channel is equal to or smaller than the area of the cross section of the first spray channel.

Furthermore, the first spraying channel is in a step hole shape and comprises a large-diameter section and a small-diameter section; the cross sectional area of the large-diameter section is larger than that of the small-diameter section, the large-diameter section is communicated with a cutting fluid spraying device of the machine tool, and the small-diameter section is communicated with the second spraying channel.

Further, the cross-sectional area of the second spray passage is smaller than the cross-sectional area of the small-diameter section.

Furthermore, the first spraying channel is in a circular truncated cone shape, one end with a larger radius is a large-diameter end, and the other end is a small-diameter end; the large-diameter end is communicated with a cutting fluid spraying device of the machine tool, and the small-diameter end is communicated with the second spraying channel.

Further, the cross-sectional area of the second spray passage is smaller than the cross-sectional area of the small-diameter end.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of a boring tool for machining in an embodiment of the present invention;

reference numerals are as follows: 10-knife handle, 10 a-interface, 12-first spray channel, 12 a-large diameter section, 12 b-small diameter section, 20-knife seat, 22-second spray channel, 22 a-spray port, 30-knife edge and 31-fastener.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Fig. 1 is a front view of a boring tool for machining according to an embodiment of the present invention. As can be seen in fig. 1, the boring tool for machining comprises a shank 10, a seat 20 and a cutting edge 30. The tool apron 20 is arranged at the front end of the tool shank 10 and is coaxial with the tool shank 10; the blade 30 is mounted to the side wall near the front end of the holder 20 by fasteners 31, such as screws or bolts. In the present embodiment, the blade 30 is mounted to the side wall of the holder 20 by 3 fasteners 31.

During the use, will earlier the utility model discloses on the handle of a knife 10 of boring cutter pegged graft perpendicularly the mount pad of lathe, then carry out high accuracy spot facing work to the work piece through the rotation of boring cutter. In order to avoid damaging the tool and the workpiece due to excessive heat generated by high-speed friction between the cutting edge 30 and the workpiece during machining, the cutting edge 30 and the workpiece need to be blasted with a cutting fluid to lubricate the cutting edge 30 and the workpiece and cool the same. However, the cutting edge 30 of the boring tool is short, and because the angle of spraying the cutting fluid is limited, it is difficult to ensure that the cutting fluid can be blasted onto the cutting edge 30 to lubricate the cutting edge 30 and the workpiece, and to remove metal chips accumulated on the surface of the cutting edge.

In order to solve the problem, the utility model discloses a be equipped with first spray passage 12 in boring cutter's the handle of a knife 10, the tip of the one end extension of first spray passage 12 to handle of a knife 10 rear end makes first spray passage 12 and the cutting fluid spray set (not shown) intercommunication of lathe, specifically, first spray passage 12 is located the axis of handle of a knife 10. A second spraying channel 22 is arranged in the tool holder 20, a first end of the second spraying channel 22 is communicated with the other end of the first spraying channel 12, and the other end of the second spraying channel 22 extends to the side wall of the tool holder 20 to form a spraying opening 22a and is communicated with the external environment, wherein the spraying opening 22a faces the blade 30. In some embodiments, the end of the rear end of the tool shank 10 is provided with an interface 10a (shown in fig. 1) for facilitating the insertion into a machine tool, and in this case, one end of the first spray channel 12 extends to the interface 10a position and communicates with the interface 10 a.

When machining is carried out, a cutting fluid spraying device (not shown) introduces cutting fluid into the first spraying channel 12 in the cutter handle 10, the cutting fluid sequentially passes through the first spraying channel 12 and the second spraying channel 22 and is sprayed to the cutting edge 30 from the spraying port 22a, so that the cutting fluid can be sprayed to the cutting edge 30 and the surface of a workpiece, the cutting edge 30 and the workpiece are lubricated in the machining process, and metal chips adhered to the cutting edge 30 and the surface of the workpiece are effectively removed. Further, the entire tool can be cooled from the inside of the tool by the flow of the cutting fluid inside the holder 10 and the tool post 20.

Further, the cross-sectional area of the second spray passage 22 may be the same as the cross-sectional area of the first spray passage 12, or, as shown in fig. 1, the cross-sectional area of the second spray passage 22 may be smaller than the cross-sectional area of the first spray passage 12, which are advantageous. When the cross-sectional area of the second spray channel 22 can be the same as the cross-sectional area of the first spray channel 12, the tool is simpler to manufacture; when the cross-sectional area of the second spray passage 22 is smaller than that of the first spray passage 12, the spraying speed of the cutting fluid from the spray port 22a to the blade 30 can be increased, which is favorable for removing the metal chips on the blade 30 and the surface of the workpiece.

Specifically, the first shower passage 12 is in a stepped hole shape, and includes a large-diameter section 12a and a small-diameter section 12b, wherein the cross-sectional area of the large-diameter section 12a is larger than that of the small-diameter section 12 b. The large-diameter section 12a communicates with a cutting fluid spray device (not shown) of the machine tool, and the small-diameter section 12b communicates with the second spray passage 22. The cutting fluid introduced from the cutting fluid spray device (not shown) flows from the large diameter section 12a to the small diameter section 12b, and the flow rate of the cutting fluid flowing to the second spray passage 22 is increased because the cross-sectional area of the passage is narrowed. And the cross-sectional area of the second shower passage 22 is smaller than that of the small diameter section 12 b. By gradually reducing the cross-sectional area of the spray passage, the flow speed of the cutting fluid in the first spray passage 12 and the second spray passage 22 can be further increased, the spray speed of the cutting fluid sprayed from the spray port 22a can be increased, and the cutting fluid is more favorable for removing metal chips firmly adhered to the cutting edge 30 and the workpiece.

Here, the first shower passage 12 may have a stepped hole shape or a circular truncated cone shape. The first spray passage 12 in the form of a circular truncated cone has a large radius at one end and a small radius at the other end. The large diameter end is communicated with a cutting fluid spray device (not shown) of the machine tool, and the small diameter end is communicated with the second spray passage 22. The cross-sectional area of the second spraying channel 22 is smaller than that of the small-diameter end, when the cross-sectional area of the second spraying channel 22 is smaller than that of the small-diameter end, the spraying speed of the cutting fluid sprayed from the spraying port 22a to the cutting edge 30 is also higher, metal chips on the cutting edge 30 and the surface of a workpiece can be cleaned conveniently, and compared with the stepped-hole-shaped first spraying channel 12, the circular-truncated-cone-shaped first spraying channel 12 is more beneficial to the flow of the cutting fluid inside the circular-truncated-cone-shaped first spraying channel 12.

Compared with the prior art, the utility model discloses a set up the first spray passage and the second spray passage that are used for supplying the cutting fluid to flow in boring cutter inside, make the cutting fluid of processing use spout cutting edge and work piece from boring cutter's inside, when solving from boring cutter outside spraying cutting fluid, be difficult to ensure that cutting fluid can spray to boring cutter's cutting edge, make the lubricated effect of boring cutter course relatively poor, and be difficult to clear away the problem of the metal fillings that the cutting edge surface accumulated; in addition, the cutting fluid flows in the tool holder and the tool apron, so that the whole tool can be cooled from the inside of the tool. The utility model has simple design, low manufacturing cost, lubricating effect and cooling effect, and can prolong the service life of the cutter; meanwhile, the metal chips accumulated on the cutting edge can be effectively removed, the abrasion of the cutting edge is reduced, and the processing quality of workpieces is improved.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, to those skilled in the art, changes and modifications may be made without departing from the spirit of the invention, and it is intended that the invention also encompass such changes and modifications.

Claims

1. A boring cutter for processing comprises a cutter handle (10) inserted into a machine tool, a cutter seat (20) arranged at the front end of the cutter handle (10), and a cutting edge (30) arranged on the side wall close to the front end of the cutter seat (20), wherein the cutter handle (10) and the cutter seat (20) are coaxial, and the boring cutter is characterized in that:

a first spraying channel (12) is arranged in the cutter handle (10), and one end of the first spraying channel (12) extends to the end part of the rear end of the cutter handle (10) and is used for being communicated with a cutting fluid spraying device of a machine tool;

a second spraying channel (22) is arranged in the tool apron (20), one end of the second spraying channel (22) is communicated with the other end of the first spraying channel (12), and the other end of the second spraying channel (22) extends to the side wall of the tool apron (20) to form a spraying opening (22 a);

the spraying opening (22 a) faces the cutting edge (30), so that the cutting fluid provided by the cutting fluid spraying device sequentially passes through the first spraying channel (12) and the second spraying channel (22) and is sprayed to the cutting edge (30) from the spraying opening (22 a).

2. The boring tool for machining according to claim 1, characterized in that:

the area of the cross section of the second spray channel (22) is equal to or smaller than the area of the cross section of the first spray channel (12).

3. The boring tool for machining according to claim 1, characterized in that:

the first spraying channel (12) is in a step hole shape and comprises a large-diameter section (12 a) and a small-diameter section (12 b);

the cross-sectional area of the large-diameter section (12 a) is larger than that of the small-diameter section (12 b), the large-diameter section (12 a) is communicated with a cutting fluid spraying device of a machine tool, and the small-diameter section (12 b) is communicated with the second spraying channel (22).

4. The boring tool for machining according to claim 3, characterized in that:

the cross-sectional area of the second shower passage (22) is smaller than the cross-sectional area of the small diameter section (12 b).

5. The boring tool for machining according to claim 1, characterized in that:

the first spraying channel (12) is in a circular truncated cone shape, one end with a larger radius is a large-diameter end, and the other end is a small-diameter end; the large-diameter end is communicated with a cutting fluid spraying device of the machine tool, and the small-diameter end is communicated with the second spraying channel (22).

6. The boring tool for machining according to claim 5, characterized in that:

the cross-sectional area of the second spray passage (22) is smaller than that of the small-diameter end.