A worm disc roughing cutter

Abstract

The utility model relates to the field of milling cutter, especially a worm disc rough skin milling cutter, including handle and blade part, the blade part fixedly arranged in one end of handle, be provided with a plurality of cutting edges on the blade part, and a plurality of cutting edges unequally divide setting on the end of blade part, be provided with a plurality of spiral cutting edges on the cylindrical surface of blade part, the position and quantity of spiral cutting edge correspond with cutting edge, and be provided with corrugated side blade surface on spiral cutting edge. The utility model discloses through setting the cutting edge of unequal division, makes each cutting edge wear amount different in single rotation process, to make different cutting edge actually be in the state of staggered use, to improve the service life of milling cutter, the utility model discloses still through setting the side blade face of corrugated shape, improved the chip removal capacity of blade part, makes in the processing of big feed, will not occur the situation such as broken blade.

Description

Technical Field

[0001] This utility model relates to the field of milling cutters, and in particular to a worm gear roughing milling cutter. Background Technology

[0002] Milling cutters are common components in machining, generally used in subtractive manufacturing to cut raw materials. In the machining of parts, a common approach is to first rough-machine to quickly reduce the allowance, and then finish-machine to achieve the specified dimensions. Rough-machine has lower precision requirements, but due to the large feed rate and depth of cutter, it places certain demands on the cutting tools.

[0003] Currently, there is a type of scroll milling machine that requires the removal of a large amount of material during machining. To ensure production efficiency, it is necessary to reduce the time spent on roughing. Therefore, a milling cutter capable of handling large feed rates and high rotational speeds is required. Thus, it is necessary to design a product that meets these requirements. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a worm gear roughing milling cutter. This utility model is achieved through the following technical solution:

[0005] A worm gear roughing cutter includes a shank and a cutting edge. The cutting edge is fixedly disposed at one end of the shank. The cutting edge is provided with a plurality of cutting edges, which are unequally distributed at the end of the cutting edge. A plurality of helical cutting edges are provided on the cylindrical surface of the cutting edge. The position and number of the helical cutting edges correspond to the cutting edges, and the helical cutting edges are provided with corrugated side cutting surfaces.

[0006] In the above technical solution: the shank is used for tool holder clamping to facilitate spindle connection; the cutting edge is used for cutting; the cutting edge is used to enable cutting effect at the bottom of the cutting edge, thereby enabling planar milling, and the unequal division allows the cutting edges to wear alternately, extending the service life of the cutting edges; the helical cutting edge is used to enable cutting effect on the side of the cutting edge, thereby enabling the use of a larger feed rate to achieve rapid material removal; the corrugated side cutting surface makes chip removal smoother during cutting with the helical cutting edge, thus adapting to machining situations with large feed rates.

[0007] A further feature of this invention is that the cutting edge is also provided with a spiral chip removal groove, the position and number of which are consistent with the number of spiral cutting edges.

[0008] In the above technical solution: the chip removal groove is used to ensure smooth chip removal.

[0009] A further feature of this invention is that the cutting edge includes a bottom cutting surface, the bottom cutting surface is inclined, the lower edges of all the bottom cutting surfaces are located in the same horizontal plane, and the upper edges of all the bottom cutting surfaces are also located in the same horizontal plane.

[0010] In the above technical solution: the bottom cutting edge is used to extrude specific materials and realize the milling function; the lower edges of all bottom cutting edges are located in the same horizontal plane, and the upper edges of all bottom cutting edges are also located in the same horizontal plane, so that the cutting edge can be more stable when rotating.

[0011] A further feature of this invention is that a central notch is provided in the middle of the bottom surface of the blade.

[0012] In the above technical solution, the central notch is designed so that the bottom edge surfaces are not directly connected, thus preventing damage to the bottom edge surfaces due to strong vibration.

[0013] This utility model discloses a worm gear roughing cutter, which, compared with the prior art:

[0014] This invention uses unequally divided cutting edges to make the wear of each cutting edge different during a single revolution, so that different cutting edges are actually used alternately, thereby improving the service life of the milling cutter.

[0015] This invention also improves the chip removal capability of the cutting edge by setting a corrugated side cutting surface, so that chipping or other issues will not occur when machining with a large feed rate. Attached Figure Description

[0016] Figure 1 This is a side view of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom surface of the blade of this utility model.

[0018] The numbers and letters in the diagram represent the following component names: 10-shank; 20-cutting edge; 201-cutting edge; 201a-bottom cutting edge; 202-helical cutting edge; 202a-side cutting edge; 203-chip groove; 204-center notch. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0020] like Figure 1 and 2As shown, this utility model proposes a worm gear roughing milling cutter, comprising a shank 10 and a cutting edge 20. The cutting edge 20 is fixedly disposed at one end of the shank 10. The cutting edge 20 is provided with a plurality of cutting edges 201, which are unequally distributed at the end of the cutting edge 20. A plurality of helical cutting edges 202 are provided on the cylindrical surface of the cutting edge 200. The position and number of the helical cutting edges 202 correspond to the cutting edges 201, and the helical cutting edges 202 are provided with corrugated side cutting surfaces 202a. The shank 10 and the cutting edge 20 have the same diameter and are coaxially arranged. Preferably, the shank 10 and the cutting edge 20 are integrally formed.

[0021] like Figure 1 and 2 As shown, this utility model proposes a worm gear roughing cutter, wherein the cutting edge 20 is further provided with a spiral chip removal groove 203, the position and number of which are consistent with the number of spiral cutting edges 202. The cross-sectional shape of the chip removal groove 203 is arc-shaped.

[0022] like Figure 1 and 2 As shown, this utility model proposes a worm gear roughing milling cutter. The cutting edge 201 includes a bottom cutting surface 201a, which is inclined. The lower edges of all bottom cutting surfaces 201a are located in the same horizontal plane, and the upper edges of all bottom cutting surfaces 201a are also located in the same horizontal plane. A flank face is also provided on the bottom surface of the cutting edge 20. The flank face is inclined to control the chip removal shape.

[0023] like Figure 1 and 2 As shown, the present invention discloses a worm gear roughing cutter, wherein a central notch 204 is provided in the middle of the bottom surface of the cutting edge 20. Preferably, the radius of the central notch 204 is one-fifth of the radius of the cutting edge 20.

[0024] The working principle of this utility model is as follows:

[0025] When the worm gear needs rough machining;

[0026] The milling machine spindle drives the milling cutter to rotate;

[0027] The milling cutter rotates at high speed to cut the material from the worm gear.

[0028] The unequal cutting edges result in different wear rates for each cutting edge during a single revolution, thus allowing different cutting edges to be used alternately, thereby increasing the service life of the milling cutter.

[0029] When cutting from the side of the cutting edge, the corrugated side face improves the chip removal capability of the cutting edge, thus enabling it to adapt to high speeds and large feed rates.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A worm gear roughing cutter, characterized in that: It includes a shank (10) and a cutting edge (20). The cutting edge (20) is fixedly disposed at one end of the shank (10). The cutting edge (20) is provided with a plurality of cutting edges (201), and the plurality of cutting edges (201) are unequally distributed on the end of the cutting edge (20). The cylindrical surface of the cutting edge (20) is provided with a plurality of helical cutting edges (202). The position and number of the helical cutting edges (202) correspond to the cutting edges (201), and the helical cutting edges (202) are provided with corrugated side cutting surfaces (202a).

2. The worm gear roughing cutter according to claim 1, characterized in that: The cutting edge (20) is also provided with a spiral chip removal groove (203), the position and number of which are the same as the number of spiral cutting edges (202).

3. The worm gear roughing cutter according to claim 1, characterized in that: The cutting edge (201) includes a bottom cutting surface (201a), which is inclined. The lower edges of all the bottom cutting surfaces (201a) are located in the same horizontal plane, and the upper edges of all the bottom cutting surfaces (201a) are also located in the same horizontal plane.

4. The worm gear roughing cutter according to claim 1, characterized in that: The blade (20) also has a central notch (204) in the middle of its bottom surface.

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