High-strength corner extrusion cutter

Abstract

The utility model discloses a high-strength angle extruding cutter which comprises an extruding and hinging part, a guiding and positioning core rod is arranged on one side of the extruding and hinging part, the surface of the guiding and positioning core rod is subjected to hardening treatment so as to increase the hardness and the abrasion resistance of the guiding and positioning core rod, and the guiding and positioning core rod is used for supporting and guiding the extruding and hinging part. A Morse taper hole handle is arranged on one side of the guiding and positioning core rod, and the Morse taper hole handle, the guiding and positioning core rod and the extruding and hinging part are of an integrated structure. According to the utility model, the overall coaxiality and the structural strength can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining technical field especially is related to a high strength extrusion angle cutter. BACKGROUND

[0002] The extrusion angle cutter is a tool for chamfering metal or other materials. It can chamfer the edge of the hole or the end of the workpiece to meet the specific machining requirements. Chamfering can increase the strength and aesthetics of the workpiece, and also facilitate connection or assembly with other parts. The main functions of the extrusion angle cutter include increasing the strength of the workpiece, facilitating assembly, removing burrs and increasing aesthetics. The cutter is simple to operate and has strong adaptability, and can be applied to different specifications of holes and workpieces.

[0003] The conventional extrusion angle cutter includes a guide core rod, an adjusting reamer, and a positioning core rod. In actual use, it is found that the total length of the three is at least 550. First, the overall coaxiality and total runout are difficult to achieve during the manufacturing process. Second, the torsional moment is large due to the length of 550, and the cutter array is prone to deformation. Third, the adjusting reamer and the core rod are connected by threads, which has poor safety and reliability during use. Fourth, the material is white steel blade, which has poor durability and is prone to wear and tear, and often requires manual adjustment. SUMMARY

[0004] The present application provides a high-strength extrusion angle cutter to improve the overall coaxiality and structural strength.

[0005] The present application provides a high-strength extrusion angle cutter, which adopts the following technical solutions:

[0006] A high-strength extrusion angle cutter includes an extrusion hinge part. One side of the extrusion hinge part is provided with a guide positioning core rod. The surface of the guide positioning core rod is hardened to increase its hardness and wear resistance. The guide positioning core rod is used to support and guide the extrusion hinge part. One side of the guide positioning core rod is provided with a Morse taper hole handle. The Morse taper hole handle, guide positioning core rod, and extrusion hinge part are integrated.

[0007] By adopting the above technical solutions, the high-strength extrusion angle cutter designed by the present application utilizes the guide positioning core rod to connect the extrusion hinge part and the Morse taper hole handle when in use. After installing the Morse taper hole handle on the machine tool spindle, the extrusion hinge part is aligned with the product to be processed through the guide positioning core rod, and then the extrusion hinge part performs cutting. In this scheme, the Morse taper hole handle, guide positioning core rod, and extrusion hinge part are integrated. This structure ensures the close combination between the components, which not only guarantees the overall coaxiality, but also enhances the overall strength and rigidity, further improving the durability and reliability of the tool.

[0008] Preferably, the extruding and reaming part comprises a reamer section and an extruding section, the extruding section is connected with the reamer section in a matching manner to reduce the resistance during cutting of the reamer section.

[0009] By using the above technical scheme, in use, the extruding section can significantly reduce the resistance of the reamer section during cutting, improve the machining efficiency and tool life. Specifically, the matching connection design of the reamer section and the extruding section enables the extruding section to effectively reduce the reaction force of the workpiece material on the reamer section during cutting, thereby reducing the cutting load, prolonging the tool life, and improving the machining precision and surface quality.

[0010] Preferably, the reamer section and the extruding section are made of tungsten steel, and the reamer section and the extruding section are tungsten steel reamer sections and tungsten steel extruding sections, respectively.

[0011] By using the above technical scheme, in use, the reamer section and the extruding section made of tungsten steel can significantly improve the overall strength and wear resistance of the extruding and reaming tool, prolong the service life. At the same time, the tungsten steel has high hardness and toughness, which can effectively reduce the deformation and wear during cutting, and ensure the machining precision and stability.

[0012] Preferably, the reamer section is provided with helically distributed cutting edges, and the reamer section is provided with a central hole.

[0013] By using the above technical scheme, in use, the helically distributed cutting edges can effectively reduce the resistance during cutting, improve the cutting efficiency and precision; during cutting, metal chips will be generated, the design of the central hole helps the metal chips to be smoothly discharged, avoids blockage, keeps the blade clean, at the same time, cooling liquid can be injected into the slot to help reduce the temperature of the cutting area, reduce tool wear, and improve machining precision.

[0014] Preferably, a transition circular arc section is arranged between the guide positioning mandrel and the extruding and reaming part, which can effectively reduce stress concentration.

[0015] By using the above technical scheme, in use, the transition circular arc section between the guide positioning mandrel and the extruding and reaming part can effectively reduce stress concentration, thereby improving the overall strength and service life of the extruding and reaming tool.

[0016] Preferably, the total length of the integrated structure composed of the Morse taper hole handle, the guide positioning mandrel and the extruding and reaming part is not more than 330mm.

[0017] By using the above technical scheme, in use, since the torque generated is large when the length is more than 550mm, the blade row is prone to deformation, therefore, in this structure, the total length of the integrated structure composed of the Morse taper hole handle, the guide positioning mandrel and the extruding and reaming part is not more than 330mm, so that the entire extruding and reaming tool is more stable in use.

[0018] Preferably, the surface of the Morse taper hole handle is provided with a plurality of anti-skid grooves to enhance the friction with the machine tool spindle.

[0019] By adopting the above technical scheme, in use, the surface of the Morse taper hole handle is provided with a plurality of anti-skid grooves, which enhances the friction with the machine tool spindle, thereby improving the stability and reliability of the swaging angle cutter during the machining process and reducing the machining error caused by slipping.

[0020] Preferably, the end of the Morse taper hole handle is provided with a threaded hole for mounting a fastener.

[0021] By adopting the above technical scheme, in use, the end of the Morse taper hole handle is provided with a threaded hole, which can conveniently mount a fastener, thereby ensuring that the swaging angle cutter is more stable during use, preventing loosening, and improving machining precision and safety.

[0022] In summary, the present application has the following beneficial effects:

[0023] 1. The high-strength swaging angle cutter designed by the utility model has an integrated structure design of the swaging part, the guide positioning core rod and the Morse taper hole handle, improves the overall strength and stability, avoids the deformation problem of the traditional split structure under high temperature and high pressure environment, and ensures the machining quality and precision.

[0024] 2. The high-strength swaging angle cutter designed by the utility model has the guide positioning core rod supporting and guiding the swaging part, reducing the vibration and deviation during cutting, and improving the cutting stability and machining efficiency.

[0025] 3. The high-strength swaging angle cutter designed by the utility model has the surface of the guide positioning core rod being hardened, which increases the hardness and wear resistance, effectively reduces the wear during long-time use, and prolongs the service life of the swaging angle cutter. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure schematic view of the embodiment;

[0027] Figure 2 The structure schematic view of the embodiment showing the center hole;

[0028] Mark explanation: 1, swaging part; 2, guide positioning core rod; 3, Morse taper hole handle; 4, reamer section; 5, extrusion section; 6, center hole; 7, transition arc section; 8, anti-skid groove; 9, threaded hole. DETAILED DESCRIPTION

[0029] The utility model makes further detailed description below combining with the drawings. Same parts are indicated with same reference numerals in the drawings. It should be noted that the words "front", "back", "left", "right", "up", "down", "bottom surface" and "top surface" in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a specific part.

[0030] Embodiment 1

[0031] The utility model discloses a high strength extrusion angle cutter, such as Figure 1 And Figure 2 As shown, including extruding hinge part 1, extruding hinge part 1 includes reamer section 4 and extrusion section 5, and extrusion section 5 is connected with reamer section 4 and is matched with each other, for reducing the resistance when reamer section 4 is cutting. Reamer section 4 and extrusion section 5 all adopt tungsten steel material, are called tungsten steel reamer section 4 and tungsten steel extrusion section 5 respectively, and the selection of this material not only improves the hardness and wear resistance of the cutter, but also enhances the overall strength of the cutter, and the reamer section 4 is provided with spiral distribution cutting edges, and the spiral distribution cutting edge design can effectively disperse the cutting force, reduce the vibration and impact in the cutting process, thereby improving the machining quality and cutter life. In addition, the reamer section 4 is also provided with a central hole 6, and the central hole 6 provides a cooling liquid passage during the machining process, which helps to reduce the working temperature of the cutter and further prolong the service life of the cutter. Therefore, a cooling liquid passage can be provided inside the extruding hinge part 1, and the cooling liquid passage is connected with an external cooling system, which can continuously supply cooling liquid during the machining process, reduce the cutter temperature, reduce thermal deformation and wear, and the cooling liquid passage can adopt a spiral or linear design, depending on the actual requirements. The inlet and outlet of the cooling liquid passage are respectively arranged on the morse taper hole handle 3 and the reamer section 4 to ensure that the cooling liquid can uniformly cover the entire cutter surface. During use, the product to be machined is fixed by using the positioning support structure, and the reamer section 4 is used to machine it.

[0032] One side of the extruding hinge part 1 is provided with a guide positioning mandrel 2, which is used for supporting and guiding the extruding hinge part 1. A transition arc segment 7 is arranged between the guide positioning mandrel 2 and the extruding hinge part 1. The transition arc segment 7 can effectively reduce stress concentration and avoid fracture or deformation under high load. The surface of the guide positioning mandrel 2 is subjected to hardening treatment, which can be selected from electroplating, carburizing or laser cladding processes. These treatment methods can significantly improve the surface hardness and wear resistance of the mandrel. One side of the guide positioning mandrel 2 is provided with a morse taper hole handle 3. The morse taper hole handle 3, the guide positioning mandrel 2 and the extruding hinge part 1 are integrated. The total length of the integrated structure formed by the morse taper hole handle 3, the guide positioning mandrel 2 and the extruding hinge part 1 is not more than 333 millimeters. This design makes the cutter more convenient to install and use, and also ensures the overall rigidity of the cutter.

[0033] Working principle: the utility model discloses a high -strength extrusion angle cutter passes through the integrated structure design of morse taper hole handle 3, guiding positioning mandrel 2, extrusion hinge part 1 and the material selection of extrusion hinge part 1, this high -strength extrusion angle cutter not only has high hardness and wear resistance, can effectively reduce cutting resistance and vibration, improves processing quality and tool life.

[0034] Example 2

[0035] As Figure 1 shown, the difference between the present embodiment and the above-mentioned embodiments is that the surface of the Morse taper hole handle 3 is provided with a plurality of anti-skid grooves 8, which can enhance the friction with the main shaft of the machine tool and prevent slipping phenomenon from occurring during high-speed rotation. The end of the Morse taper hole handle 3 is provided with a threaded hole 9 for installing a fastener, and the Morse taper hole handle 3 can be installed on the main shaft of the machine tool through the fastener, thereby completing the installation of the cutting tool. In summary, the design of the anti-skid grooves 8 and the threaded hole 9 further improves the fixing reliability and use safety of the tool.

[0036] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made in terms of structure, shape, and principle based on the present application should be covered within the protection scope of the present application.

Claims

1. A high-strength corner extrusion knife, characterized by: The invention comprises an extruded hinge part (1), a guide positioning core rod (2) is provided on one side of the extruded hinge part (1), the surface of the guide positioning core rod (2) is hardened to increase its hardness and wear resistance, the guide positioning core rod (2) is used to support and guide the extruded hinge part (1), a Morse taper hole shank (3) is provided on one side of the guide positioning core rod (2), and the Morse taper hole shank (3), the guide positioning core rod (2), and the extruded hinge part (1) are an integrated structure.

2. The high-strength corner extrusion knife according to claim 1, characterized in that: The extrusion hinge portion (1) comprises a reamer section (4) and an extrusion section (5); the extrusion section (5) and the reamer section (4) are connected in a cooperative manner to reduce the resistance of the reamer section (4) during cutting.

3. The high-strength corner extrusion knife according to claim 2, characterized in that: The reamer section (4) and the extrusion section (5) are both made of tungsten steel. The reamer section (4) and the extrusion section (5) are respectively a tungsten steel reamer section (4) and a tungsten steel extrusion section (5).

4. The high-strength corner extrusion knife according to claim 2, characterized in that: The reamer segment (4) is provided with spirally distributed blades, and the reamer segment (4) is provided with a central hole (6).

5. The high-strength corner extrusion knife according to claim 1, characterized in that: A transition arc section (7) is provided between the guiding and positioning core rod (2) and the extrusion hinge portion (1), and the transition arc section (7) can effectively reduce stress concentration.

6. The high-strength corner extrusion knife according to claim 1, characterized in that: The total length of the integrated structure composed of the Morse taper shank (3), the guide and positioning core rod (2), and the extruded hinge portion (1) does not exceed 330 mm.

7. The high-strength corner extrusion knife according to claim 1, characterized in that: The surface of the Morse taper shank (3) is provided with a plurality of anti-slip grooves (8) to enhance the friction force with the main shaft of the machine tool.

8. The high-strength corner extrusion knife according to claim 1, characterized in that: The end of the Morse taper shank (3) is provided with a threaded hole (9) for installing a fastener.

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