CN113579275A - Cutter for machining high-chromium cast iron hole - Google Patents

Cutter for machining high-chromium cast iron hole Download PDF

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Publication number
CN113579275A
CN113579275A CN202110903879.0A CN202110903879A CN113579275A CN 113579275 A CN113579275 A CN 113579275A CN 202110903879 A CN202110903879 A CN 202110903879A CN 113579275 A CN113579275 A CN 113579275A
Authority
CN
China
Prior art keywords
cast iron
chromium cast
tool
cutter
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110903879.0A
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Chinese (zh)
Inventor
郭思贝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Province Bojun Machinery Manufacturing Co ltd
Original Assignee
Sichuan Province Bojun Machinery Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Province Bojun Machinery Manufacturing Co ltd filed Critical Sichuan Province Bojun Machinery Manufacturing Co ltd
Priority to CN202110903879.0A priority Critical patent/CN113579275A/en
Publication of CN113579275A publication Critical patent/CN113579275A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1662Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the cutting insert
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2200/00Details of cutting inserts
    • B23B2200/04Overall shape
    • B23B2200/0447Parallelogram
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2205/00Fixation of cutting inserts in holders
    • B23B2205/04Fixation screws, bolts or pins of particular form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/32Details of high-speed steel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2226/00Materials of tools or workpieces not comprising a metal
    • B23B2226/12Boron nitride
    • B23B2226/125Boron nitride cubic [CBN]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

The invention relates to the technical field of cutting tools, and discloses a tool for machining a high-chromium cast iron hole, which comprises a tool bar and a blade; clamping planes are arranged on two sides of the cutter bar, and an installation groove is formed in one end of the cutter bar; the blade is fixedly arranged in the mounting groove and is made of polycrystalline cubic boron nitride. The invention solves the problems that in the existing high-chromium cast iron machining process, the ceramic cutter is adopted to perform hole machining on high-chromium cast iron, the feed amount is small, and the machining efficiency of the high-chromium cast iron is influenced.

Description

Cutter for machining high-chromium cast iron hole
Technical Field
The invention relates to the technical field of cutting tools, in particular to a tool for machining a high-chromium cast iron hole.
Background
The high-chromium cast iron is a short name of high-chromium white wear-resistant cast iron, and is a wear-resistant material with excellent performance and special attention; it has much higher wear resistance than alloy steel, much higher toughness and strength than common white cast iron, and simultaneously has good high temperature resistance and corrosion resistance, and is convenient to produce and moderate in cost, thus being an excellent wear-resistant material.
Because the high-chromium cast iron has high hardness, the heat treatment can reach HRC59-62, the normal processing adopts the processing after annealing and softening, and the heat treatment is carried out for hardening after the processing. The existing ceramic tool is generally adopted for processing, the ceramic tool has limitation, the feed amount is small, and the processing of large planes and end faces has advantages, but is not suitable for processing the aperture. And the ceramic cutter has the problems of high brittleness and easy cutter breakage.
Disclosure of Invention
Based on the technical problems, the invention provides a cutter for hole machining of high-chromium cast iron, and solves the problems that in the existing high-chromium cast iron machining process, the cutter feeding amount is small and the machining efficiency of the high-chromium cast iron is influenced when a ceramic cutter is used for hole machining of the high-chromium cast iron.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a cutter for machining a high-chromium cast iron hole comprises a cutter rod and a cutter blade; clamping planes are arranged on two sides of the cutter bar, and an installation groove is formed in one end of the cutter bar; the blade is fixedly arranged in the mounting groove and is made of polycrystalline cubic boron nitride.
Further, the cutter bar is made of high-speed steel.
Further, the blade is fixedly connected with the mounting groove through a screw.
Further, the blade structure is a straight parallelepiped with a parallelogram bottom surface.
Compared with the prior art, the invention has the beneficial effects that:
the cutter prepared by polycrystalline cubic boron nitride is used for processing the high-chromium cast iron product, the high-chromium cast iron product does not need to be softened by heat treatment, and the high-chromium cast iron product can be directly processed under the hardening condition, so that the heat treatment times of the high-chromium cast iron are reduced, the production benefit is improved, and the production cost is reduced. In addition, the tool has the advantages of wear resistance and no tool breakage, and when the tool is used for machining the hole of the high-chromium cast iron, the tool has large feed amount, and can machine and form the hole of the high-chromium cast iron at one time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. Wherein:
FIG. 1 is a schematic structural diagram of a cutter for hole machining of high-chromium cast iron.
FIG. 2 is a schematic view of a tool bar.
The cutting tool comprises a tool bar 1, a blade 2, a screw 3, a clamping plane 4 and a mounting groove 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The directional or positional relationships indicated by "upper", "lower", "left", "right", etc., are based on the directional or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
Fig. 1 to 2 are schematic structural views of a tool for high-chromium cast iron hole machining according to some embodiments of the present application, and the tool for high-chromium cast iron hole machining according to the present application will be described below with reference to fig. 1 to 2. It should be noted that fig. 1-2 are merely exemplary and are not intended to limit the specific shape and configuration of the tool for high-chromium cast iron hole machining.
Referring to fig. 1 to 2, in the present embodiment, a tool for machining a hole in high-chromium cast iron includes a tool bar 1 and a blade 2; two sides of the cutter bar 1 are provided with clamping planes 4, and one end of the cutter bar 1 is provided with an installation groove 5; the blade 2 is fixedly arranged in the mounting groove 5, and the blade 2 is made of polycrystalline cubic boron nitride.
In this embodiment, the clamping plane 4 plays a role in limiting and positioning when the tool bar 1 is mounted on a tool apron of the processing equipment, so as to ensure that the tool apron and the tool bar 1 are mounted accurately and firmly. The mounting groove 5 is used for limiting and positioning the blade 2 mounted in the mounting groove, so that the blade 2 and the mounting groove 5 are accurately and firmly mounted.
Polycrystalline cubic boron nitride has excellent performances of high hardness, thermal stability, chemical inertness, good infrared transmittance, wider forbidden bandwidth and the like, the hardness of the polycrystalline cubic boron nitride is second to that of diamond, but the thermal stability of the polycrystalline cubic boron nitride is far higher than that of the diamond, and the polycrystalline cubic boron nitride has larger chemical stability on iron metal elements. The cubic boron nitride grinding tool has excellent grinding performance, is not only suitable for processing difficult-to-grind materials, improves the production efficiency, but also can effectively improve the grinding quality of workpieces. Therefore, the cutter prepared by the polycrystalline cubic boron nitride is used for processing the high-chromium cast iron product, the high-chromium cast iron product does not need to be softened by heat treatment, and the high-chromium cast iron product can be directly processed under the hardening condition, so that the heat treatment times of the high-chromium cast iron are reduced, the production benefit is improved, and the production cost is reduced. In addition, the tool has the advantages of wear resistance and no tool breakage, and when the tool is used for machining the hole of the high-chromium cast iron, the tool has large feed amount, and can machine and form the hole of the high-chromium cast iron at one time.
Preferably, the tool shank 1 is made of high-speed steel.
Among them, high-speed steel is classified into high-carbon and high-alloy type tool steel in terms of metallurgical components. Wherein the content of carbon element is 0.7-1.6%; the sum of the contents (mass fraction) of the noble main alloy elements such as W, Mo, Cr, V, Co and the like is 10-40%. According to the different proportions of main alloy elements, the high-speed steel can be divided into W-series high-speed steel, Mo-series high-speed steel, W-Mo-series high-speed steel, high-performance high-speed steel containing Co, Al, high V and the like. The high-speed steel is different from other types of steel, and has the other composition characteristics that: the content of Cr element is fixed to about 4%. The high-strength high-speed steel can effectively improve the comprehensive mechanical property of the cutter bar 1, has longer service life, and the heat treatment hardness, tempering resistance, wear resistance and the like of the high-speed steel are obviously higher than those of the general high-speed steel.
Preferably, the blade 2 and the mounting groove 5 are fixedly connected through a screw 3. Connect blade 2 and mounting groove 5 through screw 3 for blade 2 is dismantled and assembled mounting structure, makes things convenient for follow-up with trading, maintaining blade 2.
Specifically, the blade 2 is structured as a right parallelepiped whose bottom surface is a parallelogram.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only used for clearly illustrating the verification process of the invention and are not used for limiting the patent protection scope of the invention, which is defined by the claims, and all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A cutter for high-chromium cast iron hole machining is characterized by comprising:
the clamping device comprises a cutter bar, a clamping device and a clamping device, wherein clamping planes are arranged on two sides of the cutter bar, and a mounting groove is formed in one end of the cutter bar;
the blade is fixedly arranged in the mounting groove and is made of polycrystalline cubic boron nitride.
2. The tool for high chromium cast iron hole machining according to claim 1, characterized in that:
the cutter bar is made of high-speed steel.
3. The tool for high chromium cast iron hole machining according to claim 1, characterized in that:
the blade is fixedly connected with the mounting groove through a screw.
4. The tool for high chromium cast iron hole machining according to claim 1, characterized in that:
the blade structure is a straight parallelepiped with a parallelogram bottom surface.
CN202110903879.0A 2021-08-06 2021-08-06 Cutter for machining high-chromium cast iron hole Pending CN113579275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110903879.0A CN113579275A (en) 2021-08-06 2021-08-06 Cutter for machining high-chromium cast iron hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110903879.0A CN113579275A (en) 2021-08-06 2021-08-06 Cutter for machining high-chromium cast iron hole

Publications (1)

Publication Number Publication Date
CN113579275A true CN113579275A (en) 2021-11-02

Family

ID=78256007

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110903879.0A Pending CN113579275A (en) 2021-08-06 2021-08-06 Cutter for machining high-chromium cast iron hole

Country Status (1)

Country Link
CN (1) CN113579275A (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054805B (en) * 1957-12-17 1959-04-09 Immelborn Hartmetallwerk Eight-edged, disposable plate clamped on clamping steel holders and their arrangement on a clamping steel holder
CN200945530Y (en) * 2006-09-25 2007-09-12 李智华 Mirror polished hard alloy cutter
CN201257527Y (en) * 2008-08-12 2009-06-17 郑州市钻石精密制造有限公司 Polycrystalline cubic boron lathe bit
CN201309006Y (en) * 2008-11-12 2009-09-16 苏州勤美达精密机械有限公司 Cubic boron nitride grooving tool
CN201579442U (en) * 2009-11-24 2010-09-15 河南富耐克超硬材料有限公司 W-shaped blade cutting tool with indexable inserts
CN201720464U (en) * 2010-07-19 2011-01-26 郑州博特硬质材料有限公司 Indexable integral polycrystalline cubic boron nitride necking bit blade
US20140178137A1 (en) * 2012-02-16 2014-06-26 Kennametal Inc. Tool holder with nubs for clamping a cutting insert with notches
EP2822719A1 (en) * 2012-03-06 2015-01-14 Iscar Ltd. Cutting tool and cutting insert therfor
CN104439323A (en) * 2014-12-01 2015-03-25 常州市珠江工具有限公司 Anti-loose tool
US20200009664A1 (en) * 2017-02-27 2020-01-09 Kyocera Corporation Cutting insert, cutting tool, and method of manufacturing machined product
CN211727667U (en) * 2020-01-16 2020-10-23 兰州兰石检测技术有限公司 Novel high-speed steel cutter with disposable machine clamping blade
CN112589143A (en) * 2020-11-30 2021-04-02 芜湖三联锻造股份有限公司 Turning tool for inner hole of ball pin seat passing through center
EP3834967A1 (en) * 2018-08-06 2021-06-16 Sumitomo Electric Hardmetal Corp. Lathing tool

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054805B (en) * 1957-12-17 1959-04-09 Immelborn Hartmetallwerk Eight-edged, disposable plate clamped on clamping steel holders and their arrangement on a clamping steel holder
CN200945530Y (en) * 2006-09-25 2007-09-12 李智华 Mirror polished hard alloy cutter
CN201257527Y (en) * 2008-08-12 2009-06-17 郑州市钻石精密制造有限公司 Polycrystalline cubic boron lathe bit
CN201309006Y (en) * 2008-11-12 2009-09-16 苏州勤美达精密机械有限公司 Cubic boron nitride grooving tool
CN201579442U (en) * 2009-11-24 2010-09-15 河南富耐克超硬材料有限公司 W-shaped blade cutting tool with indexable inserts
CN201720464U (en) * 2010-07-19 2011-01-26 郑州博特硬质材料有限公司 Indexable integral polycrystalline cubic boron nitride necking bit blade
US20140178137A1 (en) * 2012-02-16 2014-06-26 Kennametal Inc. Tool holder with nubs for clamping a cutting insert with notches
EP2822719A1 (en) * 2012-03-06 2015-01-14 Iscar Ltd. Cutting tool and cutting insert therfor
CN104439323A (en) * 2014-12-01 2015-03-25 常州市珠江工具有限公司 Anti-loose tool
US20200009664A1 (en) * 2017-02-27 2020-01-09 Kyocera Corporation Cutting insert, cutting tool, and method of manufacturing machined product
EP3834967A1 (en) * 2018-08-06 2021-06-16 Sumitomo Electric Hardmetal Corp. Lathing tool
CN211727667U (en) * 2020-01-16 2020-10-23 兰州兰石检测技术有限公司 Novel high-speed steel cutter with disposable machine clamping blade
CN112589143A (en) * 2020-11-30 2021-04-02 芜湖三联锻造股份有限公司 Turning tool for inner hole of ball pin seat passing through center

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Application publication date: 20211102