Double-edge rhombic full-circle arc chip-breaker indexable tool
By designing a double-edged, diamond-shaped, fully circular arc chip-breaking groove indexable tool, the synergistic effect of the diamond-shaped flank face and the arc-shaped transition zone solves the problem of insufficient chip-breaking capability of existing tools, achieving efficient chip breaking and safe chip removal, thus improving machining quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING Z SHARP ADVANCED MATERIALS TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-14
AI Technical Summary
Existing cutting tools are not capable of breaking chips in continuous cutting, causing frequent downtime of automated equipment and requiring manual chip cleaning, which affects equipment utilization and processing costs.
A double-edged, rhomboid, fully circular arc chip-breaking groove indexable tool is designed. By setting a rhomboid flank face, an arc transition zone, and a chip-breaking groove on the tool, the tool utilizes the synergistic effect of the protrusion, the flank chip-breaking edge, and the front chip-breaking edge to achieve effective chip breaking and removal.
It achieves efficient chip breaking and safe chip removal, improving processing quality and production efficiency while reducing production costs.
Smart Images

Figure CN224487697U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of indexable tool technology, and in particular relates to an indexable tool with a double-edged rhomboid full-circular arc chip breaker groove. Background Technology
[0002] In recent years, as automated machining production has developed towards intelligence and efficiency, the control requirements for continuous machining processes on new automated turning machine tools have been increasing. In turning, chip control has become a key issue affecting the stability of continuous machining—continuous chips easily become entangled on the workpiece surface, which not only damages the quality of the machined surface but also accelerates tool wear.
[0003] Effective chip control during turning requires breaking up continuous chips. However, current mainstream cutting tools still fall short in terms of continuous chip breaking capability, directly causing automated equipment to frequently stop due to internal continuous chip accumulation. This necessitates significant manual time spent cleaning up the accumulated chips, severely restricting equipment utilization and increasing processing costs.
[0004] To address this, a double-edged, rhomboid, fully circular arc chip-breaking groove indexable tool is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a double-edged, diamond-shaped, fully circular arc chip-breaking groove indexable tool to solve the above-mentioned problems.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] A double-edged rhomboid full-circle chip-breaking groove indexable tool includes: a body, wherein the plane on which the back face is located is set as a rhombus, the back face is located at the apex of the rhombus and there are two back faces, the two back faces are symmetrically arranged along the angle bisector of the apex of the rhombus, and the intersection of the front face and the back face on the body is the cutting edge;
[0008] The back face is lower than the top surface of the body. Multiple arc-shaped transition areas are provided between the back face and the top surface of the body. A chip breaker groove is provided on the side of the arc-shaped transition area near the front face. The chip breaker groove penetrates the front face. Multiple chip breaker grooves are arranged sequentially along the length direction of the back face. A back chip breaker edge is provided at the intersection protrusion of two adjacent chip breaker grooves.
[0009] A protrusion is provided at the intersection of the two rake faces. One end of the protrusion is close to the intersection of the edges of the two rake faces at the apex of the rhombus. The other end of the protrusion is close to the rear chip breaker near the apex of the rhombus. A front chip breaker is also provided on the rake face. Both ends of the front chip breaker extend to the two rake faces. The front chip breaker is located at the end of the chip breaker groove near the apex of the rhombus.
[0010] In the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model, the cutting edge includes a cutting tip and multiple side cutting edges. The cutting tip is located at the intersection of the two rhomboid apex angles of the two rhomboid faces. The cutting tip is set in an arc shape. The side cutting edges are located at the intersection of the chip breaker groove and the edge of the rhomboid face. The multiple side cutting edges are arranged in a one-to-one correspondence with the multiple chip breaker grooves.
[0011] In the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model, the diameter of the cutting tip is 0.1mm-0.2mm.
[0012] In the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model, the inclination angle of the tool tip is 15°.
[0013] In the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model, the cutting edge width of the tool tip and the side cutting edge is 0.025mm-0.030mm.
[0014] In the double-edged rhomboid full-circular arc chip breaker indexable tool of this utility model, the chip breaker is set in an arc shape, and the diameter of the chip breaker is 0.4mm-0.8mm.
[0015] In the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model, a mounting through hole is provided in the middle of the body.
[0016] In the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model, the apex angle of the rhombus is set to 35°.
[0017] Compared with the prior art, the present invention has the following advantages and technical effects:
[0018] When the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model is working, the workpiece is cut by the cutting edge. The chips generated during the machining process are guided into the arc transition zone by the protrusion, curl along the arc of the arc transition zone, and then cut off by the synergistic action of the rear chip breaker edge and the front chip breaker edge, thereby achieving effective chip breaking and promoting chip discharge.
[0019] This utility model has a compact structure and a convenient, safe and efficient chip breaking process. It is suitable for processing workpieces of different shapes in industrial production and can effectively improve workpiece processing quality and production efficiency. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is the front view of the present invention;
[0023] Figure 3 for Figure 2 A magnified view of a section at point F in the middle;
[0024] Figure 4 for Figure 2 DD sectional view;
[0025] Figure 5 for Figure 4 A magnified view of a section at point E in the middle;
[0026] Among them, 1. Body; 4. Mounting through hole; 21. Tool tip; 22. Protrusion; 23. Front chip breaker edge; 24. Side cutting edge; 31. Arc-shaped transition zone; 32. Chip breaker groove; 33. Rear chip breaker edge. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] Reference Figures 1 to 5 This utility model discloses a double-edged rhomboid full-circular arc chip-breaking groove indexable tool, including: a body 1, the plane on the body 1 where the back cutting face is located is set as a rhombus, the back cutting face is located at the apex of the rhombus and there are two back cutting faces, the two back cutting faces are symmetrically arranged along the angle bisector of the apex of the rhombus, and the intersection of the front cutting face and the back cutting face on the body 1 is the cutting edge.
[0030] The back face is lower than the top surface of the body 1. Multiple arc-shaped transition areas 31 are provided between the back face and the top surface of the body 1. A chip breaker groove 32 is provided on the side of the arc-shaped transition area 31 near the front face. The chip breaker groove 32 penetrates the front face. Multiple chip breaker grooves 32 are arranged sequentially along the length direction of the back face. A back chip breaker edge 33 is provided at the intersection protrusion of two adjacent chip breaker grooves 32.
[0031] A protrusion 22 is provided at the intersection of the two back face. One end of the protrusion 22 is close to the intersection of the edges of the two front face at the apex of the rhombus. The other end of the protrusion 22 is close to the back chip-breaking edge 33 near the apex of the rhombus. A front chip-breaking edge 23 is also provided on the back face. Both ends of the front chip-breaking edge 23 extend to the two front face. The front chip-breaking edge 23 is located at the end of the chip-breaking groove 32 near the apex of the rhombus.
[0032] The protrusion 22 is set as an elongated strip, and the axis of the protrusion 22 is set parallel to the angle bisector of the apex of the rhombus.
[0033] When the indexable tool with double-edged rhomboid full-circular arc chip breaker groove of this utility model is working, the workpiece is cut by the cutting edge. The chips generated during the machining process are guided into the arc transition zone 31 by the protrusion 22. The chips curl along the arc of the arc transition zone 31 and are then cut off by the synergistic action of the rear chip breaker 33 and the front chip breaker 23, thereby achieving effective chip breaking and promoting chip discharge.
[0034] This utility model has a compact structure and a convenient, safe and efficient chip breaking process. It is suitable for processing workpieces of different shapes in industrial production and can effectively improve workpiece processing quality and production efficiency.
[0035] In one alternative, the chip breaker groove 32 is inclined upward along a direction away from the bisector of the rhombus apex, and the chip breaker groove 32 is connected to the protrusion 22 by an arc transition.
[0036] In one alternative embodiment, the cutting edge includes a cutting tip 21 and multiple side cutting edges 24. The cutting tip 21 is located at the intersection of the two rhomboid apex angles of the rhomboid face and is arc-shaped. The side cutting edges 24 are located at the intersection of the chip breaker groove 32 and the edge of the rhomboid face. The multiple side cutting edges 24 and the multiple chip breaker grooves 32 are arranged in a one-to-one correspondence.
[0037] When machining the workpiece, the tool tip 21 and the side cutting edge 24 are used to machine the workpiece.
[0038] In one alternative design, the diameter of the blade tip 21 is 0.1mm-0.2mm.
[0039] With this configuration, ordinary turning can be performed using the tool tip 21, thereby increasing the utilization value of the indexable tool with double-edged rhomboid full-circle chip breaker groove of this utility model and reducing production costs.
[0040] In one alternative design, the blade tip 21 has an inclination angle of 15°.
[0041] This configuration effectively reduces the contact area between the tool tip 21 and the workpiece, improving the surface roughness of the workpiece.
[0042] In one alternative, the cutting edge width of the blade tip 21 and the side cutting edge 24 is 0.025mm-0.030mm.
[0043] This configuration can improve the sharpness of the cutting edge 21 and the side cutting edge 24, thereby increasing machining efficiency.
[0044] In one alternative design, the chip breaker groove 32 is configured as an arc shape, and the diameter of the chip breaker groove 32 is 0.4mm-0.8mm.
[0045] In one alternative embodiment, a mounting through hole 4 is provided in the middle of the body 1.
[0046] The purpose of setting the mounting through hole 4 is to install the double-edged rhomboid full-circular arc chip breaker indexable tool of this utility model on the machine tool.
[0047] For specific installation methods, you can choose to use locating pins for secure clamping.
[0048] In one alternative design, the apex angle of the rhombus is set to 35°.
[0049] This design results in a smaller contact area between the indexable tool with the double-edged rhomboid full-circle chip breaker groove and the workpiece edge, making it less prone to wear on the workpiece edge.
[0050] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0051] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A double-edge rhombic full circular arc chip-breaker indexable tool, characterized in that, include: The body (1) has a rhombus shape on the plane where the back blade is located. The back blade is located at the apex of the rhombus and there are two back blades. The two back blades are symmetrically arranged along the angle bisector of the apex of the rhombus. The intersection of the front blade and the back blade on the body (1) is the cutting edge. The back face is lower than the top surface of the body (1). Multiple arc-shaped transition areas (31) are provided between the back face and the top surface of the body (1). A chip breaker groove (32) is provided on the side of the arc-shaped transition area (31) near the front face. The chip breaker groove (32) penetrates the front face. Multiple chip breaker grooves (32) are arranged sequentially along the length direction of the back face. A back chip breaker edge (33) is provided at the intersection protrusion of two adjacent chip breaker grooves (32). A protrusion (22) is provided at the intersection of the two back facets. One end of the protrusion (22) is close to the intersection of the edges of the two front facets at the apex of the rhombus. The other end of the protrusion (22) is close to the back chip breaker (33) near the apex of the rhombus. A front chip breaker (23) is also provided on the back facet. Both ends of the front chip breaker (23) extend to the two front facets. The front chip breaker (23) is located at the end of the chip breaker groove (32) near the apex of the rhombus. The cutting edge includes a cutting tip (21) and multiple side cutting edges (24). The cutting tip (21) is located at the intersection of the two rhomboid apex angles of the front face. The cutting tip (21) is arc-shaped. The side cutting edges (24) are located at the intersection of the chip breaker groove (32) and the edge of the front face. The multiple side cutting edges (24) and the multiple chip breaker grooves (32) are arranged in a one-to-one correspondence. The diameter of the blade tip (21) is 0.1mm-0.2mm; The inclination angle of the blade tip (21) is 15°; The blade tip (21) and the side cutting edge (24) have a blade width of 0.025mm-0.030mm; The chip breaker groove (32) is arc-shaped, and the diameter of the chip breaker groove (32) is 0.4mm-0.8mm; The body (1) has a mounting through hole (4) in the middle. The apex angle of the rhombus is set to 35°; The protrusion (22) is set as a long strip, and the axis of the protrusion (22) is set parallel to the angle bisector of the rhombus apex.