CN217858835U

CN217858835U - Cutter for processing arc groove on step surface in deep hole

Info

Publication number: CN217858835U
Application number: CN202221455520.8U
Authority: CN
Inventors: 张木良; 王长荣; 周光明; 刘捷
Original assignee: Jiujiang 707 Institute Of Precision Mechatronics Sci & Tech Co ltd
Current assignee: Jiujiang 707 Institute Of Precision Mechatronics Sci & Tech Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-11-22
Anticipated expiration: 2032-06-10

Abstract

The utility model provides a cutter of circular arc groove on step surface in processing deep hole, this cutter include the cutter arbor, install blade on the cutter arbor, and will the chucking spare on the cutter arbor is fixed to the blade. The cutter bar comprises a connecting part and an installation part which are connected together, a blade clamping groove is reserved on the installation part, and a limiting groove extending along the depth direction of the blade clamping groove is reserved on the groove wall of the blade clamping groove; the mounting part is also provided with a fastening hole which vertically penetrates through the groove wall of the blade clamping groove; the blade comprises a cutter head and a cutter body which are connected together, the cutter head is arc-shaped, and a limiting boss matched with the limiting groove is arranged on the cutter body; the clamping piece is installed in the fastening hole. The utility model provides a cutter can not with treat under the condition that the machined part takes place to interfere, realize the processing to the circular arc groove.

Description

Cutter for processing arc groove on step surface in deep hole

Technical Field

The utility model belongs to the machining field, more specifically relates to a cutter of arc groove on the step surface in the processing deep hole.

Background

In certain fields of the machine industry and in certain products, various hole or groove machining operations are frequently encountered, which are also equipped with basic tools. However, in some special occasions, it is necessary to process the arc-shaped groove on the step surface in the deep hole, because the arc-shaped groove is located in the deep hole and the arc-shaped groove is closer to the hole wall. The conventional cutter cannot complete the arc groove on the step surface because of interference phenomenon. Therefore, it is an urgent technical problem to provide a tool capable of completing the arc groove on the step surface in the deep hole without interference.

Disclosure of Invention

To the defect of prior art, the utility model provides a cutter in circular arc groove on the step face in the processing deep hole aims at solving the circular arc groove problem on the step face in the processing deep hole.

In order to achieve the purpose, the utility model provides a cutter for processing an arc groove on a step surface in a deep hole, which is characterized by comprising a cutter bar, a blade arranged on the cutter bar and a clamping piece for fixing the blade on the cutter bar, wherein the cutter bar comprises a connecting part and an installation part which are connected together, the installation part is provided with a blade clamping groove, and the wall of the blade clamping groove is provided with a limit groove extending along the depth direction of the blade clamping groove; the mounting part is also provided with a fastening hole which vertically penetrates through the groove wall of the blade clamping groove; the blade comprises a cutter head and a cutter body which are connected together, the cutter head is arc-shaped, and a limiting boss matched with the limiting groove is arranged on the cutter body; the clamping piece is installed in the fastening hole.

Preferably, the mounting part is provided with an anti-collision notch.

Preferably, the end of the groove wall of the blade clamping groove is provided with a chip guide inclined plane.

Preferably, two opposite groove walls of the blade clamping groove are provided with oppositely arranged limiting grooves.

Preferably, a through hole is reserved at the bottom of the blade clamping groove.

Preferably, the diameter of the through hole left at the bottom of the blade clamping groove is larger than the width of the blade clamping groove.

Preferably, the limiting groove is a triangular groove or an arc groove.

The utility model provides a pair of cutter in circular arc groove on step surface in processing deep hole through the convex cutting edge of blade, can realize the processing to the circular arc groove to set up the blade in the blade draw-in groove, further press from both sides tight fixedly through spacing recess to the blade, thereby can realize the stability of blade in the course of working, improve the processingquality and the precision in circular arc groove.

Drawings

Fig. 1 is a cross-sectional view of an arc groove to be processed in an embodiment of the present invention;

FIG. 2 is a schematic view and a partially enlarged view of a cutter according to an embodiment of the present invention;

fig. 3 is a schematic structural view of one direction of a cutter bar in the cutter according to the embodiment of the present invention;

fig. 4 is a schematic structural view of another direction of the tool bar in the tool according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a blade in a cutting tool according to an embodiment of the present invention.

The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:

10. a cutter bar; 110. a connecting portion; 120. an installation part; 121. a blade slot; 122. a limiting groove; 123. a fastening hole; 124. a through hole; 125. a first notch; 126. a second notch; 127. a scrap guide inclined plane; 120. a blade; 210. a cutter head; 220. a blade body; 230. a limiting boss; 30. a retainer; 40. a circular arc groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-5, an embodiment of the present invention provides a tool for machining an arc groove 40 on a step surface in a deep hole, the tool includes a tool bar 10, a blade 20, and a clamping member 30. Wherein, the blade 20 is installed on the cutter bar 10 through the chucking member 30, and the movement of the blade 20 is manipulated by moving the cutter bar 10 in the processing process, thereby processing the arc groove 40 on the step surface.

The tool holder 10 is a support structure in a tool, and includes a connecting portion 110 and a mounting portion 120 that are coaxially connected together. A blade clamping groove 121 for mounting the blade 20 is reserved at one end of the mounting part 120 away from the connecting part 110, and an opening of the blade clamping groove 121 faces a direction away from the connecting part 110; a limiting groove 122 is formed on a groove wall of the insert pocket 121, and the limiting groove 122 may be formed on a single groove wall of the insert pocket 121, or the limiting groove 122 may be formed at a position where both groove walls face each other. The limiting groove 122 extends along the depth direction of the blade clamping groove 121 to facilitate the insertion of the blade 20, so that the limiting effect on the blade 20 can be achieved. Further, the limiting groove 122 is a triangular groove or an arc groove.

A fastening hole 123 is also left on an end of the mounting portion 120 away from the connecting portion 110, and an axial direction of the fastening hole 123 is perpendicular to a groove wall of the insert pocket 121 and penetrates through the insert pocket 121. The fastening hole 123 does not cross or overlap the restriction groove 122 to prevent the fastening hole 123 from interfering with the installation and fixation of the insert 20.

Further, a through hole 124 arranged along the channel direction is further provided at the bottom of the blade clamping groove 121, and the through hole 124 is provided at the bottom of the groove to facilitate that two side walls of the blade clamping groove 121 have certain flexibility, so that the blade 20 can be clamped from two sides. Further, the diameter of the through hole 124 is larger than the width of the insert pocket 121, so that the bending of the pocket wall can be achieved; if the size of the through-hole 124 is too small, the effect of providing the groove wall with a certain flexibility cannot be obtained.

Further, still leave the anticollision breach on the installation department 120 keeps away from one end of connecting portion 110, this anticollision breach can be a plurality of to avoid the cutter to take place to interfere with the spare part of waiting to process in the course of working, thereby can't accomplish the processing of arc groove 40. A first notch 125 is formed in one end surface of the fastening hole 123, and a second notch 126 is formed in one end surface of the through hole 124; further, a chip guide inclined plane 127 is disposed at a connection portion of the first notch 125 and the insert pocket 121 to facilitate discharge of machining chips during the machining of the tool.

The blade 20 is a main part of the cutter for machining, and includes a cutter head 210 and a cutter body 220 connected together, wherein the cutter body 220 is arc-shaped so as to machine the arc groove 40; the blade 220 is provided with a limit boss 230 corresponding to the limit groove 122, and the limit boss 230 can be arranged on one side of the blade 220, or the two opposite sides of the blade 220 are provided with the limit bosses 230.

The retainer 30 is a fastener, and the retainer 30 is used for fixing the blade 20 in the blade catching groove 121 of the blade holder 10. The chucking member 30 is installed in the chucking hole to press both side groove walls of the blade catching groove 121, thereby chucking the blade 20. Wherein the clamping member 30 may be a fastening screw or a bolt.

The utility model provides a cutter for processing arc grooves on step surfaces in deep holes, which can complete the processing of the arc grooves 40 through the arc-shaped blades 20; and the clamping of the blade 20 is realized through the groove and the groove arranged in the groove, so that the blade 20 is prevented from moving or deviating in the machining process, and the machining quality of the arc groove 40 on the step surface in the deep hole is improved.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It will be understood by those skilled in the art that the foregoing is merely exemplary of the present invention, and is not intended to limit the invention to the particular forms disclosed, and all changes, equivalents and modifications that fall within the spirit and scope of the invention are intended to be embraced thereby.

Claims

1. A cutter for processing an arc groove on a step surface in a deep hole is characterized by comprising a cutter bar (10), a blade (20) arranged on the cutter bar (10) and a clamping piece (30) for fixing the blade (20) on the cutter bar (10),

the cutter bar (10) comprises a connecting part (110) and an installation part (120) which are connected together, a blade clamping groove (121) is reserved on the installation part (120), and a limiting groove (122) extending along the depth direction of the blade clamping groove (121) is reserved on the groove wall of the blade clamping groove (121); the mounting part (120) is also provided with a fastening hole (123) which vertically penetrates through the groove wall of the blade clamping groove (121);

the blade (20) comprises a cutter head (210) and a cutter body (220) which are connected together, the cutter head (210) is arc-shaped, and a limiting boss (230) matched with the limiting groove (122) is arranged on the cutter body (220);

the clamping piece (30) is mounted in the fastening hole (123).

2. The tool for machining the arc groove on the step surface in the deep hole is characterized in that the mounting portion (120) is provided with an anti-collision notch.

3. The tool for machining the arc groove on the inner step surface of the deep hole according to claim 1, wherein the end of the groove wall of the insert clamping groove (121) is provided with a chip guide inclined surface (127).

4. The tool for machining the arc groove on the inner step surface of the deep hole according to claim 1, wherein the two opposite groove walls of the blade clamping groove (121) are provided with limiting grooves (122) which are arranged oppositely.

5. The tool for machining the arc groove on the inner step surface of the deep hole as claimed in claim 1 or 4, wherein a through hole (124) is reserved at the bottom of the insert clamping groove (121).

6. The tool for machining the arc groove on the step surface in the deep hole according to claim 5, wherein the diameter of the through hole left at the bottom of the insert clamping groove (121) is larger than the width of the insert clamping groove (121).

7. The tool for machining the arc groove on the step surface in the deep hole according to claim 1, wherein the limiting groove (122) is a triangular groove or an arc groove.