A hard steel processing pcbn tool edge optimization device

Abstract

The utility model relates to cutting tool processing technical field and disclose a kind of for hard steel processing PCBN cutter edge optimization device, the device includes base, base top surface both sides are equipped with sliding guide rail, and sliding guide rail is slidably connected sliding platform, and sliding platform is connected inside ring of anchor clamps by base, for fixed passivation tool, power assembly mounting seat of base other side is connected motor mounting plate through fixed shaft, and motor drives grinding wheel through connecting shaft, and passivation is realized opposite to cutter edge, and motor is connected line route through the wire tube of metal bellows pipe material, and connecting port can be accessed external cooling system, base outer wall is equipped with display screen, start button and red green double color indicator light, and both side walls are symmetrically equipped with the vent of dustproof net and cooling fan.This device can replace anchor clamps inside ring and grinding wheel to improve adaptability and maintenance convenience, cooling and heat dissipation structure guarantee stable operation, and it is applicable to PCBN cutter edge efficient accurate passivation.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool processing technology, and in particular to a cutting edge optimization device for machining PCBN tools made of hard steel. Background Technology

[0002] PCBN (polycrystalline cubic boron nitride) cutting tools, with their ultra-high hardness, excellent wear resistance, and high-temperature resistance, have become core tools for machining difficult-to-machine materials such as hardened steel, high-strength alloys, and wear-resistant cast iron. However, after the sintering and grinding processes, PCBN cutting tools are prone to defects such as micro-notches, burrs, and chipping on the cutting edge. If directly used in cutting operations, this not only exacerbates the risk of cutting edge damage but also leads to increased machining vibration, excessive workpiece surface roughness, and in severe cases, even premature tool failure, significantly shortening tool life and increasing production costs. Currently available PCBN cutting edge passivation devices still have many technical shortcomings. Firstly, the passivation uniformity is poor. Most devices use a fixed-path grinding structure, which can only adapt to single-edge cutting tools. When dealing with complex cutting edge types such as circular arc edges and shaped edges, differences in passivation in different areas of the cutting edge are likely to occur, resulting in uneven transition of the cutting edge arc, directly affecting the cutting stability of the tool. Firstly, the passivation process suffers from several drawbacks. Firstly, the passivation process is limited in several ways. The first is the impact on workpiece machining accuracy. Secondly, the applicability is limited. Tool fixtures are mostly fixed designs, only compatible with PCBN tools of specific shank diameters or models. Changing to different tool specifications requires complete disassembly and readjustment of the fixture, which is cumbersome and time-consuming. Furthermore, the repeatability is generally low, easily leading to fluctuations in passivation quality due to positioning deviations. Thirdly, the maintenance cost is high. The passivation wheel and power assembly are often integrated. When the passivation wheel wears to a certain extent, the entire power module needs to be disassembled and replaced, resulting in long maintenance times. This not only affects production efficiency but also increases equipment maintenance costs. These shortcomings severely restrict the full performance of PCBN tools, making it difficult to meet the current demands for high-precision, multi-variety, and high-efficiency cutting processes. Therefore, developing a PCBN tool edge passivation device that is adaptable to multi-edged tools, dynamically and precisely adjustable, highly efficient, and easy to maintain has become a crucial technological bottleneck that urgently needs to be overcome in the cutting tool processing field. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a cutting edge optimization device for PCBN machining of hard steel, which has the advantages of strong uniformity, high adaptability, high efficiency, and convenient maintenance, thus solving the problems mentioned in the background technology.

[0004] This utility model provides the following technical solution: a cutting edge optimization device for PCBN machining of hard steel, wherein sliding guide rails are symmetrically provided on both sides of the top surface of the base, a sliding platform is slidably connected to the outer surface of the sliding guide rails, a base is fixedly connected to the top surface of the sliding platform, an inner ring of a clamp is fixedly connected to the top surface of the base, the inner side of the inner ring of the clamp holds the tool to be blunted, a power component mounting seat is fixedly connected to the other side of the top surface of the base, a fixed shaft is fixedly connected to the four corners of the power component mounting seat, a motor mounting plate is fixedly connected to the end of the fixed shaft, a motor is fixedly connected to the side of the motor mounting plate, a connecting shaft is fixedly connected to the connecting end of the motor, a grinding wheel is fixedly connected to one end of the motor, and the outer circular surface of the grinding wheel is opposite to the cutting edge of the tool to be blunted, the motor is connected to the connecting shaft through a conduit, a connecting port is fixedly connected to the top end of the motor, a display screen is embedded on one side of the outer wall of the base, a start button and an indicator light are arranged next to the display screen, and the display screen, start button and indicator light are all electrically connected to the motor through wires, and a ventilation opening is provided on the side wall of the base.

[0005] Preferably, the inner ring of the clamp is a replaceable structure with an elastic rubber layer on the inner wall to accommodate the tool to be blunted, and the inner ring of the clamp is detachably connected to the sliding platform by a positioning pin and bolts.

[0006] Preferably, the grinding wheel is made of diamond grinding wheel or cubic boron nitride grinding wheel, and is detachably connected to the connecting shaft by flange and bolts. The outer surface of the grinding wheel can be machined into a flat, arc or shaped curved surface according to the cutting edge of the tool to be blunted.

[0007] Preferably, the conduit is a metal corrugated pipe, with internal wires for connecting the motor to the connection port, display screen, start button, and indicator lights, and the connection port can be connected to the external cooling system piping.

[0008] Preferably, the indicator lights include a power indicator light and a running indicator light, which are distinguished by red and green colors respectively. A dustproof net and a cooling fan are installed on the inner side of the vent, and there are two vents, symmetrically distributed on both sides of the base.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses a base to drive a sliding platform to move precisely along a sliding guide rail. With the help of a grinding wheel that can be machined to fit the curved surface of the cutting edge, the relative position can be adjusted according to different cutting edge types such as straight edge and arc edge of the tool to be blunted, so as to achieve uniform blunting of the entire cutting edge area and solve the problem of uneven blunting in traditional devices.

[0010] 2. This utility model features a replaceable inner ring for the fixture, connected to the sliding platform via a positioning pin. Replacement can be completed quickly without the need for complete disassembly, significantly improving efficiency compared to traditional fixtures. It meets the dulling requirements of various tool sizes. The grinding wheel is detachably connected to the connecting shaft via a flange, reducing replacement time after wear and improving maintenance efficiency. The conduit protects the internal wires, and the connection port can be connected to the cooling system, reducing coolant waste and pollution, achieving high efficiency and low consumption. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Base; 2. Sliding guide rail; 3. Sliding platform; 4. Base; 5. Inner ring of fixture; 6. Tool to be dulled; 7. Power component mounting base; 8. Fixed shaft; 9. Motor mounting plate; 10. Motor; 11. Connecting shaft; 12. Conduit; 13. Connection port; 14. Grinding wheel; 15. Display screen; 16. Start button; 17. Indicator light; 18. Ventilation port. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-3A cutting edge optimization device for machining PCBN tools made of hard steel includes a base 1 with symmetrical sliding guide rails 2 on both sides of its top surface. A sliding platform 3 is slidably connected to the outer surface of the sliding guide rails 2, allowing it to slide along the guide rails and support some machining components. By changing its position, it adapts to the machining requirements of tools of different sizes, achieving flexible adjustment of the machining position. A base 4 is fixedly connected to the top surface of the sliding platform 3, serving as the mounting base for fixtures and other components, providing a stable mounting platform for the fixtures and ensuring their fixed position during machining. An inner ring 5 of the fixture is fixedly connected to the top surface of the base 4, belonging to the internal components of the fixture. Other fixture components work together to clamp and fix the tool 6 to be passivated, ensuring that the tool will not shift during the passivation process and guaranteeing machining accuracy. The inner side of the inner ring 5 of the fixture holds the tool 6 to be passivated, which is the object of the passivation process. After being fixed by the fixture, it undergoes passivation treatment by the grinding wheel 14 to improve the quality of the cutting edge. A power component mounting base 7 is fixedly connected to the other side of the top surface of the base 1 for mounting power-related components such as the motor 10, providing a stable mounting position for the power components and ensuring the reliability of power transmission. Fixed shafts 8 are fixedly connected to the four corners of the power component mounting base 7, serving to connect and fix related components. To enhance the overall structure and stability of the device, ensuring that each component maintains a relatively fixed position during operation, a motor mounting plate 9 is fixedly connected to the end of the fixed shaft 8. This plate is specifically used to fix the motor 10, providing mounting support and ensuring the motor's stable position during operation, thus reducing the impact of vibration on power transmission. The motor 10 is fixedly connected to the side of the motor mounting plate 9, serving as the power source for the device. It provides power for the rotation of the grinding wheel 14, driving the grinding wheel 14 to achieve the blunting process of the tool edge. A connecting shaft 11 is fixedly connected to the connecting end of the motor 10, and a grinding wheel is fixedly connected to one end of the motor 10. The grinding wheel 14 has its outer surface facing the cutting edge of the tool 6 to be blunted. The motor 10 is connected to the connecting shaft 11 through the wire conduit 12. The top end of the motor is fixedly connected to the connection port 13. A display screen 15 is embedded on one side of the outer wall of the base 1. Next to the display screen 15, there is a start button 16 and an indicator light 17. The display screen 15, start button 16, and indicator light 17 are all electrically connected to the motor 10 through wires. A ventilation opening 18 is opened on the side wall of the base 1. Its main function is to provide a channel for ventilation and heat dissipation inside the device, dissipate heat in time, and prevent the device from being affected by overheating or even damaged.

[0015] Please see Figures 1-3 The inner ring 5 of the fixture is a replaceable structure with an elastic rubber layer on the inner wall to accommodate the tool 6 to be blunted. The inner ring 5 of the fixture is detachably connected to the sliding platform 3 by a positioning pin and bolts.

[0016] Please see Figures 1-3The grinding wheel 14 is made of diamond grinding wheel or cubic boron nitride grinding wheel and is detachably connected to the connecting shaft 11 by flange and bolts. The outer surface of the grinding wheel 14 can be machined into a flat, arc or shaped curved surface according to the cutting edge of the tool 6 to be blunted.

[0017] Please see Figures 1-3 The conduit 12 is a metal corrugated pipe, and inside it are wires that connect the motor 10 to the connection port 13, the display screen 15, the start button 16, and the indicator light 17. The connection port 13 can be connected to the external cooling system pipeline.

[0018] Please see Figures 1-3 The indicator light 17 includes a power indicator light and a running indicator light, which are distinguished by red and green colors respectively. The inner side of the vent 18 is equipped with a dustproof mesh and a cooling fan, and there are two vents 18, which are symmetrically distributed on both sides of the base 1.

[0019] Working principle: Before starting work, select the appropriate inner ring 5 of the fixture according to the shank diameter of the tool 6 to be passivated, and fix the tool in the inner ring 5 of the fixture. Set the speed of the motor 10 and the movement parameters of the sliding platform 3 through the display screen 15. The base 4 drives the sliding platform 3 to adjust along the sliding guide rail 2 to the precise position of the grinding wheel 14 and the cutting edge of the tool. Press the start button 16, the motor 10 drives the grinding wheel 14 to rotate, and at the same time the sliding platform 3 moves along the set trajectory to complete the passivation of the cutting edge. During the process, the indicator light 17 displays the running status, the ventilation port 18 dissipates heat, and the cooling system connected to the connection port 13 cools the grinding area. After passivation is completed, the equipment stops automatically, the indicator light 17 indicates that the tool can be removed.

Claims

1. A cutting edge optimization device for machining PCBN tools made of hard steel, comprising a base (1), characterized in that: The base (1) has symmetrical sliding guide rails (2) on both sides of its top surface. A sliding platform (3) is slidably connected to the outer surface of the sliding guide rails (2). A base (4) is fixedly connected to the top surface of the sliding platform (3). A clamp inner ring (5) is fixedly connected to the top surface of the base (4). The inner side of the clamp inner ring (5) holds the tool (6) to be blunted. A power component mounting seat (7) is fixedly connected to the other side of the top surface of the base (1). Fixed shafts (8) are fixedly connected to the four corners of the power component mounting seat (7). A motor mounting plate (9) is fixedly connected to the end of the fixed shaft (8). A motor (10) is fixedly connected to the side of the motor mounting plate (9). The connecting end is fixedly connected to the connecting shaft (11). One end of the motor (10) is fixedly connected to the grinding wheel (14), and the outer surface of the grinding wheel (14) is opposite to the cutting edge of the tool (6) to be blunted. The motor (10) is connected to the connecting shaft (11) through the wire pipe (12). The top end of the motor is fixedly connected to the connecting port (13). A display screen (15) is embedded on one side of the outer wall of the base (1). A start button (16) and an indicator light (17) are arranged next to the display screen (15). The display screen (15), start button (16), and indicator light (17) are all electrically connected to the motor (10) through wires. A ventilation opening (18) is opened on the side wall of the base (1).

2. The cutting edge optimization device for PCBN machining of hard steel according to claim 1, characterized in that: The inner ring (5) of the fixture is a replaceable structure with an elastic rubber layer on the inner wall to accommodate the tool (6) to be blunted. The inner ring (5) of the fixture and the sliding platform (3) are detachably connected by positioning pins and bolts.

3. The cutting edge optimization device for machining PCBN from hard steel according to claim 2, characterized in that: The grinding wheel (14) is made of diamond grinding wheel or cubic boron nitride grinding wheel and is detachably connected to the connecting shaft (11) by flange and bolts. The outer surface of the grinding wheel (14) can be processed into a flat, arc or shaped curved surface according to the cutting edge of the tool (6) to be blunted.

4. The cutting edge optimization device for machining PCBN from hard steel according to claim 3, characterized in that: The conduit (12) is a metal corrugated pipe, and inside it is a wire connecting the motor (10) to the connection port (13), the display screen (15), the start button (16), and the indicator light (17). The connection port (13) can be connected to the external cooling system pipeline.

5. The cutting edge optimization device for machining PCBN from hard steel according to claim 4, characterized in that: The indicator light (17) includes a power indicator light and a running indicator light, which are distinguished by red and green colors respectively. The inner side of the vent (18) is equipped with a dustproof net and a cooling fan, and there are two vents (18), which are symmetrically distributed on both sides of the base (1).

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