A cast steel high speed cutting insert with chip breaker groove

Abstract

The utility model relates to cutting tool technical field especially relates to a cast steel high -speed cutting blade structure of chip breaker groove, including connecting column, the outer wall fixed connection of connecting column has a plurality of mounting seat, the outer wall threaded connection of mounting seat has the tool, the top of tool installs four upper cutter bodies that are circularly arrayed distribution, the bottom of tool installs four lower cutter bodies that correspond with upper cutter body one to one, the outer wall of upper cutter body and lower cutter body all is equipped with a plurality of first chip breaker groove, can carry out the preliminary guidance to the cutting of the first chip breaker groove of upper cutter body or lower cutter body outer wall in the cutting process, makes cutting along the groove body flow and begins preliminary curl, the smooth transition of cutting from first chip breaker groove to second chip breaker groove is realized to the arc surface of first chip breaker groove inner wall, has improved the stability of cutting, after cutting enters second chip breaker groove, the groove body structure further intensifies cutting curl, reduces the risk that the tool is damaged because of cutting winding simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a structure of a cast steel high-speed cutting insert with chip breaker groove. Background Technology

[0002] CNC cutting tools are tools used for cutting processes in mechanical manufacturing. They are also called cutting tools. In a broad sense, cutting tools include not only cutting tools but also grinding tools. In addition to accessories such as tool holders and tool shanks, CNC cutting tools mainly include cutting inserts. Cutting inserts are key tool components that are installed on the tool system, such as tool holders and tool posts, and remove material and complete the cutting process by moving relative to the workpiece.

[0003] Confirm that the blade model and specifications match the machining requirements. Check that the blade is free from damage, chipping, or coating peeling. Ensure that the machine tool holder and turret are clean and free of foreign objects. Correctly install the blade into the tool holder or turret, ensuring reliable positioning. Adjust the blade position. Determine the relative position of the blade tip and the workpiece coordinate system through trial cutting or a tool setter. Set the machining parameters and run the machine tool according to the set parameters. Monitor the cutting status to ensure stable machining. Regularly check the blade wear. Determine whether parameters need to be adjusted or the blade needs to be replaced by changes in cutting force, temperature, or workpiece surface quality. When the blade wear reaches its limit or the machining quality deteriorates, stop the machine and replace the blade with a new one. Repeat the installation and debugging process.

[0004] Cast steel is characterized by high strength and good toughness, and is widely used in many fields such as machinery manufacturing and construction. However, when high-speed cutting is performed on cast steel, the resulting cuts are often continuous and long, and are easy to get tangled on the tool and workpiece. This not only affects the surface quality of the machined parts, but may also damage the tool, increase downtime, and reduce production efficiency. Utility Model Content

[0005] To solve the above technical problems, this utility model provides the following technical solution: a cast steel high-speed cutting insert structure with chip breaker grooves, including a connecting column, a plurality of mounting seats are fixedly connected to the outer wall of the connecting column, and a cutting tool is threadedly connected to the outer wall of the mounting seats. Four upper cutting bodies arranged in a circumferential array are installed at the top of the cutting tool, and four lower cutting bodies corresponding one-to-one with the upper cutting bodies are installed at the bottom of the cutting tool. The outer walls of the upper cutting bodies and the lower cutting bodies are provided with a plurality of first chip breaker grooves.

[0006] As a preferred embodiment of the high-speed cast steel cutting insert structure with chip breaker groove of this utility model, the top of the tool is provided with an upper cutting surface that is fixedly connected to the bottom end of the upper tool body, and the bottom end of the tool is provided with a lower cutting surface that is fixedly connected to the outer wall of the lower tool body.

[0007] As a preferred embodiment of the structure of a cast steel high-speed cutting insert with chip breaker groove of the present invention, wherein: one end of the first chip breaker groove extends along its axial direction and sequentially forms an arc-shaped surface and a second chip breaker groove, and a plurality of trapezoidal blocks arranged in a rectangular array are fixedly connected to the surface of the second chip breaker groove.

[0008] As a preferred embodiment of the high-speed cast steel cutting insert structure with chip breaker groove of this utility model, the outer wall of the mounting base is fixedly connected with a plurality of evenly distributed positioning pins that are slidably connected to the inner wall of the cutting tool.

[0009] As a preferred embodiment of the structure of a cast steel high-speed cutting insert with chip breaking groove of the present invention, wherein: the outer wall of the mounting base is provided with a guide groove, the outer wall of the cutting tool is provided with a threaded hole communicating with the inner wall of the guide groove, and the inner wall of the threaded hole is threaded with a screw that is slidably connected to the inner wall of the guide groove.

[0010] As a preferred embodiment of the high-speed cast steel cutting insert structure with chip breaker groove of this utility model, the top ends of the upper and lower cutting bodies are provided with arc surfaces, and the outer walls of the upper and lower cutting bodies are provided with sharp edges.

[0011] The beneficial effects of this utility model are:

[0012] 1. The first chip breaker groove on the outer wall of the upper or lower tool body can initially guide the cutting process, causing the cutting material to flow along the groove and begin to curl, preventing the cutting material from scattering haphazardly. The arc-shaped surface of the inner wall of the first chip breaker groove enables a smooth transition of the cutting material from the first chip breaker groove to the second chip breaker groove, ensuring smooth cutting flow without jamming or blockage, guaranteeing the continuity of the chip breaking process, and improving cutting stability. After the cutting material enters the second chip breaker groove, the groove structure further intensifies the curling of the cutting material, while multiple trapezoidal blocks on the inner wall of the second chip breaker groove apply obstruction and extrusion force to the curled cutting material, causing the cutting material to deform more and eventually break. This solves the problem of excessively long cutting continuity when cutting cast steel at high speed, avoids cutting material wrapping around the tool and workpiece, reduces the impact on the surface quality of the machined surface, and reduces the risk of tool damage due to cutting material wrapping.

[0013] 2. The positioning pins on the outer wall of the mounting base mate with the inner wall of the tool, enabling quick and precise positioning during tool installation. This ensures accurate tool placement, avoids installation deviations that could affect cutting performance, and improves installation accuracy and efficiency. The guide groove, threaded hole, and screw mate with the positioning pins to quickly and securely fix the tool to the mounting base. Disassembly simply requires loosening the screws to remove the tool from the mounting base. The entire process requires no complex tools or cumbersome steps, enabling rapid tool installation and replacement, reducing downtime, improving production efficiency, and lowering auxiliary time costs in the production process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of 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. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the cutting tool of this utility model.

[0017] Figure 3 This is a cross-sectional view of the tool mounting structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of the upper blade body of this utility model.

[0019] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1. Connecting post; 2. Mounting base; 3. Tool; 4. Positioning post; 5. Guide groove; 6. Upper tool body; 7. Threaded hole; 8. Lower tool body; 9. Screw; 10. Upper tool face; 11. Lower tool face; 12. Arc surface; 13. Edge; 14. First chip breaker groove; 15. Arc surface; 16. Second chip breaker groove; 17. Trapezoidal block. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Example 1

[0023] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 This is the first embodiment of the present invention, which provides a high-speed cast steel cutting insert structure with chip breaker grooves, including a connecting column 1. Multiple mounting seats 2 are fixedly connected to the outer wall of the connecting column 1. The outer wall of the mounting seat 2 is provided with a slot to facilitate the cutting tool 3. The cutting tool 3 is threadedly connected to the outer wall of the mounting seat 2. Four upper cutting bodies 6 arranged in a circumferential array are installed at the top of the cutting tool 3. The upper cutting bodies 6 are used to process the product. Four lower cutting bodies 8 corresponding to the upper cutting bodies 6 are installed at the bottom of the cutting tool 3. Multiple first chip breaker grooves 14 are provided on the outer wall of both the upper cutting bodies 6 and the lower cutting bodies 8. The first chip breaker grooves 14 are used to initially curl the cutting.

[0024] The top of the cutting tool 3 has an upper cutting surface 10 that is fixedly connected to the bottom of the upper cutting body 6, and the bottom of the cutting tool 3 has a lower cutting surface 11 that is fixedly connected to the outer wall of the lower cutting body 8.

[0025] One end of the first chip breaker groove 14 extends along its axial direction and forms an arc-shaped surface 15 and a second chip breaker groove 16 in sequence. The arc-shaped surface 15 is used to smoothly transition the cutting, and the second chip breaker groove 16 is used to curl the cutting again. Multiple trapezoidal blocks 17 arranged in a rectangular array are fixedly connected to the surface of the second chip breaker groove 16. The trapezoidal blocks 17 are used to apply compressive force to break the cutting.

[0026] During use, when high-speed cutting of cast steel, the first contact is made with the first chip breaker groove 14 on the outer wall of the upper cutter body 6 or the lower cutter body 8. The first chip breaker groove 14 can play an initial guiding role for the cutting, causing the cutting to flow along the groove and begin to curl initially, laying the foundation for the subsequent chip breaking process. As the cutting continues to flow, the cutting will enter the arc-shaped surface 15 on the inner wall of the first chip breaker groove 14. The smooth transition design of the arc-shaped surface 15 ensures that the cutting can flow smoothly from the first chip breaker groove 14 to the second chip breaker groove 16, avoiding the cutting from getting stuck or blocked during the flow process.

[0027] When the cutting material enters the second chip breaker groove 16, the structural design of the second chip breaker groove 16 further intensifies the curling of the cutting material. At the same time, multiple trapezoidal blocks 17 arranged in a rectangular array and fixedly connected to the inner wall of the second chip breaker groove 16 exert a force on the curled cutting material. The trapezoidal blocks 17 act like small obstacles. When the cutting material flows through them, it is blocked and squeezed by the trapezoidal blocks 17, causing the cutting material to deform more and eventually break. This solves the problem of excessively long cutting lengths when cutting cast steel at high speed. In addition, the arc surface 12 reduces excessive friction between the cutting material and the tool body, while the edge 13 enhances the structural strength of the tool body and ensures the stability of the tool body during chip breaking.

[0028] Example 2

[0029] Reference Figures 1-3 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the outer wall of the mounting base 2 is fixedly connected with a plurality of evenly distributed positioning posts 4 that are slidably connected to the inner wall of the cutter 3. The top of the positioning post 4 is provided with rounded corners to facilitate the insertion of the lower cutting surface 11 of the cutter 3.

[0030] The outer wall of the mounting base 2 is provided with a guide groove 5, and the outer wall of the cutter 3 is provided with a threaded hole 7 that communicates with the inner wall of the guide groove 5. The inner wall of the threaded hole 7 is threaded with a screw 9 that is slidably connected to the inner wall of the guide groove 5.

[0031] The top ends of the upper cutter body 6 and the lower cutter body 8 are provided with arc surfaces 12, and the outer walls of the upper cutter body 6 and the lower cutter body 8 are provided with edges 13. The edges 13 are used to enhance the stability of the cutter body during the cutting process.

[0032] During use, when installing the tool 3, align the tool 3 with the mounting base 2, align the positioning pin 4 with the corresponding hole on the inner wall of the tool 3, and then push the tool 3 towards the mounting base 2. The positioning pin 4 will then slide into the inner wall of the tool 3, initially achieving the connection and positioning between the tool 3 and the mounting base 2, ensuring the accuracy of the tool 3 installation. At the same time, the guide groove 5 on the outer wall of the mounting base 2 corresponds to the threaded hole 7 on the outer wall of the tool 3. When the positioning pin 4 is completely slid into the inner wall of the tool 3, the guide groove 5 and the threaded hole 7 are in a connected state. At this time, screw the screw 9 into the threaded hole 7 and let the screw 9 slide in the guide groove 5 until the screw 9 is tightened, thus firmly fixing the tool 3 on the mounting base 2.

[0033] When it is necessary to replace the tool 3, simply loosen the screw 9 in the reverse direction so that the screw 9 comes out of the guide groove 5 and the threaded hole 7, and then pull the tool 3 out of the mounting base 2. The positioning pin 4 will then slide out from the inner wall of the tool 3, thus completing the disassembly of the tool 3. The entire installation and replacement process is simple to operate and does not require complicated tools or cumbersome steps.

[0034] The remaining structure is the same as that in Example 1.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-speed cast steel cutting insert structure with chip breaker groove, characterized in that: The device includes a connecting column (1), and a plurality of mounting seats (2) are fixedly connected to the outer wall of the connecting column (1). A cutting tool (3) is threadedly connected to the outer wall of the mounting seat (2). Four upper cutting bodies (6) arranged in a circular array are installed at the top of the cutting tool (3). Four lower cutting bodies (8) corresponding to the upper cutting bodies (6) are installed at the bottom of the cutting tool (3). A plurality of first chip breaking grooves (14) are opened on the outer walls of the upper cutting bodies (6) and the lower cutting bodies (8).

2. The structure of a cast steel high-speed cutting insert with chip breaker groove according to claim 1, characterized in that: The top of the cutting tool (3) is provided with an upper cutting surface (10) that is fixedly connected to the bottom of the upper cutting body (6), and the bottom of the cutting tool (3) is provided with a lower cutting surface (11) that is fixedly connected to the outer wall of the lower cutting body (8).

3. The structure of a cast steel high-speed cutting insert with chip breaker groove according to claim 1, characterized in that: One end of the first chip breaker groove (14) extends along its axial direction and forms an arc-shaped surface (15) and a second chip breaker groove (16) in sequence. The surface of the second chip breaker groove (16) is fixedly connected with a plurality of trapezoidal blocks (17) arranged in a rectangular array.

4. The structure of a cast steel high-speed cutting insert with chip breaker groove according to claim 1, characterized in that: The outer wall of the mounting base (2) is fixedly connected with a plurality of evenly distributed positioning pins (4) that are slidably connected to the inner wall of the cutting tool (3).

5. The structure of a cast steel high-speed cutting insert with chip breaker groove according to claim 4, characterized in that: The outer wall of the mounting base (2) is provided with a guide groove (5), and the outer wall of the cutting tool (3) is provided with a threaded hole (7) that communicates with the inner wall of the guide groove (5). The inner wall of the threaded hole (7) is threaded with a screw (9) that is slidably connected to the inner wall of the guide groove (5).

6. The structure of a cast steel high-speed cutting insert with chip breaker groove according to claim 1, characterized in that: The top ends of the upper blade (6) and the lower blade (8) are provided with arc surfaces (12), and the outer walls of the upper blade (6) and the lower blade (8) are provided with sharp edges (13).

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