CN217595932U - Turning tool for processing inner hole deep groove - Google Patents

Abstract

The utility model belongs to the technical field of the cutting tool technique and specifically relates to a lathe tool for processing hole zanjon groove. The cutter comprises a cutter bar, wherein a cutter head extending in the direction perpendicular to the cutter bar is arranged at the first end of the cutter bar, a turning blade is arranged at the end part, far away from the cutter bar, of the cutter head, and the turning blade extends outwards in the axial direction of the cutter bar. The utility model discloses, set up the tool bit that extends along the direction of perpendicular to cutter arbor through the first end at the cutter arbor, because the tool bit outwards extends for the cutter arbor, the tool bit top has just so formed and has dodged the space, and the lathe tool just can not interfere with the surface of part mutually. The end part of the tool bit, which is far away from the tool bar, is provided with a turning tool blade, and during the use process, the tool bit is moved into an inner hole of a part, and then the turning tool is moved, so that the turning tool blade can extend into the processing surface of the annular groove; and starting the lathe to rotate the part, and then machining the inner hole deep groove by the turning blade along with the feeding of the turning tool.

Description

Turning tool for processing inner hole deep groove

Technical Field

The utility model belongs to the technical field of the cutting tool technique and specifically relates to a lathe tool for processing hole deep groove.

Background

At present, when a deep groove is machined in the outer surface of a part, a traditional turning tool is clamped on a tool apron, the part is clamped on a clamping seat, the positions of the turning tool and the part are adjusted to enable the turning tool to abut against the outer surface of the part, the part rotates around the axis of the clamping seat, and the turning tool is fed along the axis direction of the clamping seat, so that the deep groove can be machined in the surface of the part.

However, in the current stage, the inner-hole deep trench is processed by processing an annular groove in the inner hole of the component, and further manufacturing the inner-hole deep trench on the upper surface or the lower surface of the annular groove. Fig. 1, 2 show a part 1 with a deep bore groove 101; referring to fig. 1 and 2, the diameter of the inner hole deep groove 101 is larger than that of the inner hole, and the lower surface of the annular groove of the part 1 is a processing surface. With part 1 clamping on the grip slipper, traditional lathe tool clamping is on the lathe tool seat, and the lathe tool is at the in-process that removes to the machined surface, and the surface of part 1 can obstruct the lathe tool to remove to the machined surface for the operating space of hole deep groove 101 top is limited, and then leads to the lathe tool to interfere with the surface of part 1 mutually and can't process hole deep groove 101. Therefore, the conventional turning tool cannot machine the inner deep groove 101 with limited operation space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the turning tool for machining the deep groove of the inner hole is used for machining the deep groove with limited operation space.

The utility model provides a technical scheme that its technical problem adopted is: the turning tool for machining the deep groove of the inner hole comprises a tool bar, wherein a tool bit extending in the direction perpendicular to the tool bar is arranged at the first end of the tool bar, a turning blade is arranged at the end, far away from the tool bar, of the tool bit, and the turning blade extends outwards in the axial direction of the tool bar.

Furthermore, the peripheral surface of the cutter head is formed by enclosing a mounting surface, an arc-shaped avoiding surface and two oppositely arranged planes; the two oppositely arranged planes are perpendicular to the axis of the cutter bar, the mounting surface and the avoiding surface are perpendicular to the two oppositely arranged planes, the mounting surface and the avoiding surface are intersected at the tip end of the end part far away from the cutter bar, and the turning blade is arranged at the tip end.

Further, the mounting surface is concavely provided with a mounting part, and the turning blade is arranged in the mounting part.

Further, the cutter bar comprises a supporting section and a clamping section which are connected; the size of the cross section of the supporting section is smaller than that of the cross section of the clamping section; the end of the supporting section, which is far away from the clamping section, forms a first end of the cutter bar.

Further, the supporting section and the clamping section are provided with coplanar side faces, and the side faces are coplanar with the mounting face.

Further, the front angle of the turning blade is 0 degree, the rear angle is-15 degrees, and the blade inclination angle of the turning blade is 3 degrees.

The beneficial effects of the utility model are that: the cutter head extending along the direction perpendicular to the cutter bar is arranged at the first end of the cutter bar, and the cutter head extends outwards relative to the cutter bar, so that an avoiding space is formed above the cutter head, and the turning tool cannot interfere with the outer surface of a part. The end part of the tool bit, which is far away from the tool bar, is provided with a turning tool blade, and during the use process, the tool bit is moved into an inner hole of a part, and then the turning tool is moved, so that the turning tool blade can extend into the processing surface of the annular groove; and starting the lathe to rotate the part, and machining the inner hole deep groove by the turning blade along with the feeding of the turning tool.

Drawings

FIG. 1 is a schematic structural view of a part having a deep trench of a particular configuration;

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

fig. 3 is a schematic structural diagram of a turning tool for machining an inner deep groove provided by the embodiment of the present invention;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a perspective view of the turning tool removing lathe insert of FIG. 3 for machining deep trenches in the bore;

fig. 6 is a state diagram of the deep groove machined by the turning tool for machining the inner-hole deep groove in fig. 3.

Reference numerals: 1-parts; 101-deep trench; 2, cutting a cutter bar; 201-clamping section; 202-a support section; 3, a cutter head; 301-mounting face; 302-an avoidance plane; 303-plane; 304-a bottom surface; 305-vertical plane; 4-turning the blade.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 3, fig. 4, fig. 5 and fig. 6, the utility model is used for processing lathe tool of hole deep groove 101, including cutter arbor 2, the first end of cutter arbor 2 has the tool bit 3 that extends along the direction of perpendicular to cutter arbor 2, the tip that cutter bit 3 kept away from cutter arbor 2 is provided with turning blade 4, turning blade 4 outwards extends along the 2 axis directions of cutter arbor.

The tool bar 2 is used for being mounted on a tool apron of a lathe, and two ends of the tool bar 2 are a first end and a second end respectively. The cutter head 3 is fixed on one side of the first end of the cutter bar 2 and extends along the direction vertical to the axis of the cutter bar 2; as the cutter head 3 extends along the direction vertical to the axis of the cutter rod 2, an avoiding space is formed above the cutter head 3; the length of the tool tip 3 along its extension direction should be smaller than the diameter of the inner hole of the part 1, so that the tool tip 3 can be placed at the machining surface when machining the deep groove 101. In order to ensure the connection strength, rigidity and reliability of the cutter bar 2 and the cutter head 3, the cutter bar 2 and the cutter head 3 are preferably in an integrally formed structure. The turning blade 4 is fixed on the end part, far away from the cutter bar 2, of the cutter head 3 and is used for turning the deep groove 101 of the part 1. The turning blade 4 extends outwards along the axis direction of the cutter rod 2; here, it should be noted that there are three states of the cutter blade 4:

in the state 1, the turning blade 4 extends along the axial direction of the cutter bar 2 to a direction away from the cutter bar 2, and the purpose of the arrangement is to machine the deep groove 101 at the lower surface of the annular groove as a machining surface.

In the state 2, the turning blade 4 extends along the axial direction of the tool holder 2 toward the tool holder 2, and is arranged to machine the deep trench 101 at the time when the upper surface of the annular groove is machined.

In the state 3, the turning blade 4 extends towards and away from the cutter bar 2 along the axial direction of the cutter bar 2, and the purpose of the arrangement is to machine the deep groove 101 when the upper surface and the lower surface of the annular groove are used as machining surfaces.

The utility model discloses specific operation process: in the specific operation process, because the models of the lathe are different, the axis of the part 1 can be horizontally clamped or vertically clamped, for example, the axis of the part 1 is vertically clamped, the part 1 is clamped on the clamping seat, the turning tool is clamped on the lathe seat, the turning tool bit 3 is aligned with the inner hole of the part 1, the turning tool bit 3 is moved downwards into the inner hole of the part 1, the upper surface of the turning tool bit 3 is lower than the upper surface of the annular groove, the lower surface of the turning tool bit 3 is higher than the upper surface of the annular groove, then, the part 1 is horizontally moved, the turning blade 4 of the turning tool is placed above the processing position of the processing surface, the turning tool is moved downwards, the turning blade 4 is in contact with the processing surface, and the lathe is started, so that the processing of the inner hole 101 with the lower surface of the annular groove as the processing surface can be completed.

The utility model provides a lathe tool for processing hole deep groove 101 sets up the tool bit 3 that extends along perpendicular to cutter arbor 2's direction through the first end at cutter arbor 2, because tool bit 3 outwards extends for cutter arbor 2, tool bit 3 top has just formed like this and has dodged the space, and the lathe tool just can not interfere with the surface of part 1 mutually. The end part of the tool bit 3, which is far away from the tool bar 2, is provided with a turning blade 4, the tool bit 3 is moved into an inner hole of the part 1 in the using process, and then the turning tool is moved, so that the turning blade 4 can extend into the processing surface of the annular groove; and starting the lathe to rotate the part 1, and then machining the inner hole deep groove 101 by the turning blade 4 along with the feeding of the turning tool.

In this embodiment, the cutter bar 2 is preferably made of high-speed steel, and the turning blade 4 is preferably made of synthetic diamond. Of course, the tool bar 2 may also be made of other steel materials, and the turning blade 4 may also be made of other materials such as cemented carbide, which is not limited herein.

Further, the outer peripheral surface of the cutter head 3 is formed by enclosing a mounting surface 301, an arc-shaped avoiding surface 302 and two oppositely arranged planes 303; two oppositely arranged planes 303 are perpendicular to the axis of the cutter bar 2, the mounting surface 301 and the avoiding surface 302 are perpendicular to the two oppositely arranged planes 303, the mounting surface 301 and the avoiding surface 302 intersect at the tip end far away from the end part of the cutter bar 2, and the turning blade 4 is arranged at the tip end.

In the present embodiment, the tip 3 has a substantially fan-shaped configuration, and the outer peripheral surface of the tip 3 includes an arc-shaped escape surface 302 for mounting the surface 301 and two opposing flat surfaces 303. The plane 303 is perpendicular to the mounting surface 301 and the escape surface 302, respectively. The turning blade 4 may be fixed at the intersecting tip position of the mounting surface 301 and the avoiding surface 302 by a fastener such as welding or a screw, which is provided to enable the turning blade 4 to be more conveniently mounted. The arc-shaped avoiding surface 302 mainly functions to prevent the tool bit 3 from interfering with the hole wall of the inner hole when the turning tool moves downwards.

Further, a mounting portion is concavely arranged on the mounting surface 301, and the turning blade 4 is arranged in the mounting portion.

Referring to fig. 5, the mounting portion is a semi-open space surrounded by a bottom surface 304 parallel to the mounting surface 301 and a vertical surface 305 perpendicular to the bottom surface 304, and is used for limiting the lathe blade 4 so that the lathe blade 4 is stably accommodated therein, preventing the lathe blade 4 from shaking, and exposing a cutting edge of the lathe blade 4 to the outside of the mounting portion so as to be in contact with the part 1 to be cut.

The cutter bar 2 can be of a structure with the same section size, so that the size of the turning tool is larger. In order to reduce the size of the turning tool, preferably, the tool bar 2 comprises a support section 202 and a clamping section 201 which are connected; the cross section size of the supporting section 202 is smaller than that of the clamping section 201; the end of the support section 202 remote from the clamping section 201 forms a first end of the tool holder 2.

The supporting section 202 and the clamping section 201 are both of a cuboid structure, and are preferably manufactured in an integrated forming mode in order to ensure the strength and rigidity of the cutter bar 2; because the cross section size of the supporting section 202 is smaller than that of the clamping section 201, the whole weight of the turning tool and the amount of steel consumed in the manufacturing and processing process of the turning tool can be reduced.

Further, the support section 202 and the clamping section 201 have a coplanar side, which is coplanar with the mounting surface 301.

Since the tool holder 2 described in the above embodiments is of a generally rectangular parallelepiped configuration, they have a coplanar side surface therebetween, with which the mounting surface 301 is coplanar for positioning as a reference during installation and machining.

Further, the rake angle of the turning blade 4 is 0 °, the relief angle is-15 °, and the blade inclination angle of the turning blade 4 is 3 °.

The front angle is set to 0 degrees because the hardness of the processing material is higher, and the front angle is not suitable to be selected to be too large, so that 0 degrees is selected as the front angle; the back angle is-15 degrees, so that the turning tool cannot interfere with the bottom surface of the deep groove 101 in the machining process, and the cuttings can be conveniently discharged. The main purpose of the 3-degree blade inclination angle is to prevent the tool from interfering with the groove wall of the deep groove 101 during machining and damaging the groove wall of the deep groove 101.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims (4)

1. A lathe tool for processing hole deep groove, including cutter arbor (2), its characterized in that: a cutter head (3) extending in a direction perpendicular to the cutter bar (2) is arranged at the first end of the cutter bar (2), a turning blade (4) is arranged at the end, far away from the cutter bar (2), of the cutter head (3), and the turning blade (4) extends outwards in the axis direction of the cutter bar (2);

the cutter bar (2) comprises a supporting section (202) and a clamping section (201) which are connected with each other; the cross section size of the supporting section (202) is smaller than that of the clamping section (201); the end, far away from the clamping section (201), of the supporting section (202) forms a first end of the cutter bar (2);

the outer peripheral surface of the cutter head (3) is formed by enclosing a mounting surface (301), an arc-shaped avoiding surface (302) and two oppositely arranged planes (303); the two oppositely arranged planes (303) are perpendicular to the axis of the cutter bar (2), the mounting surface (301) and the avoiding surface (302) are perpendicular to the two oppositely arranged planes (303), the mounting surface (301) and the avoiding surface (302) are intersected at the tip end of the end part far away from the cutter bar (2), and the turning blade (4) is arranged at the tip end.

2. The turning tool for machining a deep bore groove as claimed in claim 1, wherein: the mounting surface (301) is concavely provided with a mounting part, and the turning blade (4) is arranged in the mounting part.

3. The turning tool for machining a deep bore groove as claimed in claim 1, wherein: the supporting section (202) and the clamping section (201) have a coplanar side face, and the side face is coplanar with the mounting face (301).

4. Turning tool for machining deep trenches in bores according to any of claims 1 to 3, characterized in that: the front angle of the turning blade (4) is 0 degree, the rear angle is-15 degrees, and the blade inclination angle of the turning blade is 3 degrees.

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