Low-run-out dynamic milling cutter

Abstract

The utility model is applicable to the technical field of milling cutters, and provides a low-run-out dynamic milling cutter which comprises a cutter body assembly, the cutter body assembly is arranged along the horizontal direction, one end of the cutter body assembly is provided with a cutter handle assembly, and the cutter handle assembly is arranged along the horizontal direction; the cutter handle assembly comprises a cutter handle head connected with the cutter handle assembly. The device solves the problems that in the actual use process of the milling cutter, errors are generated due to cutter jumping, the cutter jumping directly affects the minimum shape error which can be achieved by the milling cutter under the ideal machining condition and the geometric shape precision of a machined surface, and therefore the machining precision of the milling cutter is affected by the jumping. By controlling the diameter and length matching proportion of the cutter body of the milling cutter, the extending amount of the cutter body in the actual use process is controlled, the precision of the milling cutter is guaranteed, meanwhile, the jerk value of the milling cutter is reduced, and the machining precision of the milling cutter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, and more specifically, to a low-jump dynamic milling cutter. Background Art

[0002] A milling cutter is a tool used for milling, which uses a rotary motion to cut material to the desired size and shape. The milling cutter cuts the workpiece with its cutting edge, and the rotary motion of the milling cutter combined with the movement of the workpiece achieves material removal. Milling cutters are widely used in metalworking, woodworking, and other material processing fields.

[0003] In the actual processing of milling cutters, there are many reasons for machining errors, and the error caused by tool runout is one of the important factors, which directly affects the minimum shape error that the milling cutter can achieve under ideal processing conditions and the geometric shape accuracy of the processed surface. The greater the milling cutter runout, the more unstable the milling cutter's processing state is, and the more it affects the processing effect.

[0004] There are many reasons for the runout of the milling cutter. The manufacturing errors of the milling cutter and spindle components, the clamping errors may cause the drift and eccentricity between the tool and the ideal rotation axis of the spindle, and the specific processing technology, tooling, and milling cutter strength may cause the milling cutter to run out during the actual processing process. However, in the actual production process, in order to reduce the runout by controlling the manufacturing errors of the milling cutter and spindle components, it is necessary to greatly improve the overall precision of the milling cutter and spindle components, thereby greatly increasing the production cost of the milling cutter and spindle components.

[0005] Therefore, it is not advisable to use the manufacturing error of the milling cutter and the spindle components, but the milling cutter strength can be controlled to reduce the milling cutter runout. In the actual production process, reducing the extension length of the milling cutter can improve the strength of the milling cutter. The greater the extension length of the milling cutter, the greater the deformation of the tool during processing. During processing, the milling cutter is in a state of continuous deformation, and the milling cutter runout will continue to change. Therefore, changing the extension length of the milling cutter is a means to improve the strength of the milling cutter and thus reduce the runout. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a low-jump dynamic milling cutter.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A low-jump dynamic milling cutter comprises a cutter body assembly, wherein the cutter body assembly is arranged in a horizontal direction, a tool handle assembly is arranged at one end of the cutter body assembly, and the tool handle assembly is arranged in a horizontal direction; the tool handle assembly comprises a tool handle head connected to the tool handle assembly.

[0009] By adopting the above technical solution, the cutter body assembly can process the surface of the object, and through the rotation of the cutter body assembly, the surface of the object can be processed by digging holes, grinding and other processes. A handle assembly is provided at one end of the cutter body assembly, and the handle assembly is arranged in a horizontal direction. The handle assembly can fix the cutter body assembly on the milling cutter machine, ensuring that the cutter body assembly can operate stably during actual use, and there is no possibility of shaking due to unstable installation, thereby ensuring the use effect of the cutter body assembly, and further ensuring the overall processing and grinding effect of the device.

[0010] The utility model is further configured as follows: the blade assembly is configured as a four-blade structure, the length of the blade assembly is configured as a, the value of a is configured as 15±0.15 mm, the diameter of the blade assembly is configured as b, the value of b is configured as 4±0.02 mm.

[0011] By adopting the above technical solution, through the coordination of the length and diameter of the cutter body assembly 1, it can be ensured that the cutter body assembly 1 does not extend too much during the actual processing, ensuring the overall strength of the milling cutter, so that it can achieve good results in actual use. Under the condition of the same radial cutting force, the diameter of the shank increases by 20%, and the radial runout of the tool can be reduced by 50%. Second, the extended length of the tool can be reduced. The greater the extended length of the tool, the greater the deformation of the tool during processing. The tool is in constant change during processing, and the radial runout of the tool will change continuously, resulting in an uneven workpiece processing surface. Similarly, the extended length of the tool is reduced by 20%, and the radial runout of the tool will also be reduced by 50%. Therefore, the device controls the diameter and length of the cutter body assembly, ensuring that the device has a lower runout during actual use.

[0012] The utility model is further configured as follows: the tool body assembly includes a tool head core, the tool head core is configured as a cylindrical structure, four groups of tool head sheets are arranged on the outer wall of the tool head core, the tool head sheets are arranged in a circular array along the side wall of the tool head core, a group of chip grooves are arranged at one protruding end of each group of tool head sheets, a tool head plate is arranged on the side wall of the tool head sheet, the tool head plate is configured as a curved rectangle, the tool head plate width is set to f, and the value of f is set to 0.4 mm.

[0013] By adopting the above technical solution, a group of chip grooves are provided at one end of the protrusion of each group of cutter heads. The chip grooves are mainly used to collect and guide the waste generated during the cutting process to ensure the smooth progress of the cutting process. The chip grooves can reduce the interruption of cutting caused by chip blockage or accumulation, thereby improving the cutting efficiency. In addition, the setting of the chip grooves can help reduce tool wear, thereby increasing the service life of the entire milling cutter. A cutter head plate is provided on the side wall of the cutter head plate. The cutter head plate is set to a curved rectangle. The width of the cutter head plate is set to f, and the value of f is set to 0.4mm. The cutter head plate can ensure that the entire milling cutter can fit with the surface of the workpiece during the cutting process, thereby ensuring the processing effect of the milling cutter.

[0014] The utility model is further configured as follows: the side wall of the blade head piece has a blade angle at one end away from the blade handle assembly, the blade angle is set to an acute angle, a blade is set at the bottom of the blade angle, the blade is set in a vertical direction, and a bottom blade groove is set at the bottom of the blade.

[0015] The utility model is further configured as follows: the handle assembly is adapted to the shape of the blade body assembly, the length of the handle assembly is set to c, the value of c is set to 50±0.3mm, the diameter of the handle assembly is set to d, and the value of d is set to 4±0.005mm.

[0016] The utility model is further configured as follows: the handle head is arranged at one end of the handle assembly close to the blade body assembly, one end of the handle head is connected to the blade body assembly, and the other end is connected to the handle body, and the end of the handle body away from the handle head is connected to the handle joint, and the handle joint is configured as a trapezoid.

[0017] In summary, the present application includes at least one of the following beneficial technical effects of a low-jump dynamic milling cutter:

[0018] 1. The cutter body assembly can process the surface of an object. Through the rotation of the cutter body assembly, the surface of the object can be processed by digging holes, grinding and other processes. A handle assembly is provided at one end of the cutter body assembly. The handle assembly is arranged in a horizontal direction. The handle assembly can fix the cutter body assembly on the milling cutter machine, ensuring that the cutter body assembly can operate stably during actual use, and there is no possibility of shaking due to unstable installation, thereby ensuring the use effect of the cutter body assembly and further ensuring the overall processing and grinding effect of the device.

[0019] 2. By matching the length and diameter of the cutter body assembly 1, it can be ensured that the cutter body assembly 1 does not extend too much during the actual processing, ensuring the overall strength of the milling cutter, and achieving good results in actual use. Under the same radial cutting force, the diameter of the cutter bar increases by 20%, and the radial runout of the cutter can be reduced by 50%. Second, the extended length of the cutter can be reduced. The greater the extended length of the cutter, the greater the deformation of the cutter during processing. The radial runout of the cutter will change continuously during processing, resulting in an uneven surface of the workpiece. Similarly, the extended length of the cutter is reduced by 20%, and the radial runout of the cutter will also be reduced by 50%. The device controls the diameter and length of the cutter body assembly, ensuring that the device has a lower runout during actual use.

[0020] 3. A set of chip grooves is set at one end of the protrusion of each set of cutter head pieces. The chip grooves are mainly used to collect and guide the waste generated during the cutting process to ensure the smooth progress of the cutting process. The chip grooves can reduce the interruption of cutting caused by chip blockage or accumulation, thereby improving the cutting efficiency. In addition, the setting of the chip grooves can help reduce tool wear, thereby increasing the service life of the entire milling cutter. A cutter head plate is set on the side wall of the cutter head piece. The cutter head plate is set to a curved rectangle. The width of the cutter head plate is set to f, and the value of f is set to 0.4mm. The cutter head plate can ensure that the entire milling cutter can fit with the workpiece surface during the cutting process, thereby ensuring the processing effect of the milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the low-jump dynamic milling cutter of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the knife body assembly in the utility model.

[0023] Figure 3 for Figure 2 Left view of .

[0024] Description of reference numerals: 1, cutter body assembly; 11, cutter head piece; 12, cutter head core; 111, cutter corner; 112, cutter edge; 113, bottom edge groove; 114, cutter head plate; 13, chip groove;

[0025] 2. Knife handle assembly; 21. Knife handle head; 22. Knife handle body; 23. Knife handle joint. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] For example, see Figure 1-3 , the utility model provides the following technical solutions:

[0029] Specifically refers to a low runout dynamic milling cutter, see Figure 1, including a cutter body assembly 1, which is arranged in a horizontal direction. The cutter body assembly 1 can process the surface of an object. Through the rotation of the cutter body assembly 1, the surface of the object can be processed by digging holes, grinding, and other processes. A handle assembly 2 is arranged at one end of the cutter body assembly 1, and the handle assembly 2 is arranged in a horizontal direction. The handle assembly 2 can fix the cutter body assembly 1 on the milling cutter machine, ensuring that the cutter body assembly 1 can operate stably during actual use, and there is no possibility of shaking due to unstable installation, thereby ensuring the use effect of the cutter body assembly 1.

[0030] See also Figure 1 The cutter body assembly 1 is set to a four-edge structure. The cutter body with a four-edge structure can provide higher processing accuracy during the processing due to the large number of edges, and the cutter body with a four-edge structure is more stable during the milling process, especially when finishing the surface of an object, the stability is much greater than that of a three-edge milling cutter. The length of the cutter body assembly 1 is set to a, the value of a is set to 15±0.15mm, and the diameter of the cutter body assembly 1 is set to b, the value of b is set to 4±0.02mm.

[0031] Specifically, the strength of the tool can be increased in two ways. One is to increase the diameter of the tool bar. Under the condition of the same radial cutting force, the tool bar diameter increases by 20%, and the radial runout of the tool can be reduced by 50%. The second is to reduce the extension length of the tool. The greater the extension length of the tool, the greater the deformation of the tool during processing. The tool is in constant change during processing, and the radial runout of the tool will change continuously, resulting in an uneven workpiece surface. Similarly, if the extension length of the tool is reduced by 20%, the radial runout of the tool will also be reduced by 50%. By matching the length and diameter of the tool body assembly 1, it can be ensured that the tool body assembly 1 does not extend too much during the actual processing process, ensuring the overall strength of the milling cutter, so that it can achieve good results during actual use.

[0032] See also Figure 2 The cutter body assembly 1 includes a cutter core 12, which is set as a cylindrical structure. Four groups of cutter blades 11 are set on the outer wall of the cutter core 12. The cutter blades 11 are arranged along the circumference of the side wall of the cutter core 12. The cutter core 12 provides an installation environment for the cutter blades 11, ensuring that the cutter blades 11 run stably without shaking during operation. A group of chip grooves 13 are set at one end of the protrusion of each group of cutter blades 11. The chip grooves 13 are mainly used to collect and guide the waste generated during the cutting process to ensure that the cutting process proceeds smoothly. The chip grooves 13 can reduce the cutting interruption caused by chip blockage or accumulation, thereby improving the cutting efficiency. A cutter plate 114 is set on the side wall of the cutter blade 11. The cutter plate 114 is set as a curved rectangle. The width of the cutter plate 114 is set to f, and the value of f is set to 0.4mm. The cutter plate 114 can ensure that the entire milling cutter can fit with the workpiece surface during the cutting process, thereby ensuring the processing effect of the milling cutter.

[0033] See also Figure 2 , Figure 3 The side wall of the cutter head 11 has a blade corner 111 at one end away from the handle assembly 2. The blade corner 111 is set to an acute angle. The blade corner 111 can grind and dig holes on the workpiece surface during the processing, so that the blade corner 111 can achieve fine processing on the workpiece surface, ensuring the overall processing effect of the milling cutter. A blade 112 is set at the bottom of the blade corner 111. The blade 112 is set in the vertical direction. The blade 112 can achieve cutting and grinding on the workpiece surface in the horizontal direction. The blade 112 can fit the horizontal surface of the workpiece surface for processing. A bottom blade groove 113 is set at the bottom of the blade 112. The bottom blade groove 113 is slightly concave compared to the blade 112, ensuring the overall processing precision of the milling cutter.

[0034] See also Figure 2 The handle assembly 2 is adapted to the shape of the cutter body assembly 1, the length of the handle assembly 2 is set to c, the value of c is set to 50±0.3mm, the diameter of the handle assembly 2 is set to d, and the value of d is set to 4±0.005mm. The length ratio of the handle assembly 2 and the cutter body assembly 1 is moderate, which can ensure that the cutter body assembly 1 does not extend too long during the processing, thereby ensuring the stability of the cutter body assembly 1.

[0035] See also Figure 1 The handle assembly 2 includes a handle head 21 connected to the handle assembly 2. The handle head 21 is arranged at one end of the handle assembly 2 close to the blade assembly 1. One end of the handle head 21 is connected to the blade assembly 1, and the other end is connected to the handle body 22. The handle head 21 ensures a stable connection between the blade assembly 1 and the handle assembly 2. The end of the handle body 22 away from the handle head 21 is connected to a handle joint 23, and the handle body 22 provides an installation environment for the handle joint 23. The handle joint 23 is set to be cylindrical, and the diameter of the end close to the handle body 22 is larger than the diameter of the end away from the handle body 22. The handle joint 23 can ensure the connection between the device and the milling cutter machine, ensuring that the device remains stable during actual use.

[0036] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A low-jump dynamic milling cutter, characterized in that: It comprises a knife body assembly (1), the knife body assembly (1) being arranged in a horizontal direction, a knife handle assembly (2) being arranged at one end of the knife body assembly (1), the knife handle assembly (2) being arranged in the horizontal direction; The handle assembly (2) comprises a handle head (21) connected to the handle assembly (2); The blade assembly (1) is configured as a four-blade structure, the length of the blade assembly (1) is configured as a, the value of a is configured as 15±0.15 mm, the diameter of the blade assembly (1) is configured as b, the value of b is configured as 4±0.02 mm.

2. A low-jump dynamic milling cutter according to claim 1, characterized in that: The tool body assembly (1) comprises a tool head core (12), the tool head core (12) being configured as a cylindrical structure, the outer wall of the tool head core (12) being provided with four groups of tool head pieces (11), the tool head pieces (11) being arranged in a circular array along the side wall of the tool head core (12), a group of chip grooves (13) being provided at one protruding end of each group of tool head pieces (11), the side wall of the tool head piece (11) being provided with a tool head plate (114), the tool head plate (114) being configured as a curved rectangle, the width of the tool head plate (114) being set to f, and the value of f being set to 0.4 mm.

3. A low-jump dynamic milling cutter according to claim 2, characterized in that: The side wall of the blade head piece (11) has a blade corner (111) at one end away from the blade handle assembly (2), the blade corner (111) is set as an acute angle, a blade (112) is provided at the bottom of the blade corner (111), the blade (112) is arranged in a vertical direction, and a bottom blade groove (113) is provided at the bottom of the blade (112).

4. The low-jump dynamic milling cutter according to claim 1, characterized in that: The handle component (2) is adapted in shape to the blade body component (1); the length of the handle component (2) is set to c, the value of c is set to 50±0.3 mm; the diameter of the handle component (2) is set to d, the value of d is set to 4±0.005 mm.

5. The low-jump dynamic milling cutter according to claim 4, characterized in that: The handle head (21) is arranged at one end of the handle assembly (2) close to the blade body assembly (1); one end of the handle head (21) is connected to the blade body assembly (1), and the other end is connected to the handle body (22); the end of the handle body (22) away from the handle head (21) is connected to a handle joint (23); and the handle joint (23) is arranged in a trapezoidal shape.

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