A groove milling cutter

Abstract

The utility model discloses a forming slot milling cutter, comprising: a main body unit, the main body unit comprising a tool handle part; a cutter head assembly, the cutter head assembly is arranged at one end of the tool handle part, the cutter head assembly is used for forming grinding wheel grinding, the cutter head assembly comprises a blade rod and a cutting head, the blade rod is provided with a plurality of chip grooves and blades, each of the chip grooves is U-shaped, the core diameter of the blade rod accounts for 60%-65% of the diameter of the blade rod, and its beneficial effects are: waste chips can be discharged through the chip groove, wherein the chip groove adopts a U-shaped design, so that it has sufficient chip discharge space, is more convenient for waste chips to be discharged, avoids wear on the workpiece, and improves the quality of the workpiece; and, by adopting the U-shaped design of the chip groove, the diameter core can be maintained at 60%-65%, which greatly improves the rigidity of the tool, thereby improving the processing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a forming slot milling cutter. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Each tooth cuts off the excess of the workpiece intermittently in sequence during operation. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] The existing milling cutter has poor rigidity, which affects its cutting efficiency. In addition, it is not convenient to discharge waste chips during use, which causes the waste chips to wear the workpiece and affect the quality of the workpiece.

[0004] Therefore, a profile slot milling cutter is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above-mentioned problems of the forming slot milling cutter, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a forming groove milling cutter, which is used to solve the problems that the existing milling cutters have poor rigidity, affecting their cutting efficiency, and are not convenient for discharging waste chips during use, causing waste chips to wear the workpiece and affecting the quality of the workpiece.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a forming slot milling cutter, comprising:

[0009] A main body unit, the main body unit comprising a handle portion;

[0010] A cutter head assembly is arranged at one end of a shank portion, the cutter head assembly comprises a blade rod and a cutting head, the end of the blade rod facing away from the cutting head is fixedly connected to one end of the shank portion, a plurality of chip grooves and blades are arranged on the blade rod, each of the chip grooves is U-shaped, and the core diameter of the blade rod accounts for 60%-65% of the diameter of the blade rod.

[0011] As a preferred solution of the forming slot milling cutter described in the utility model, the shank portion and the blade rod are made of tungsten-cobalt metal powder and tungsten carbide powder by high-temperature sintering, and the diameter of the blade rod is smaller than the diameter of the shank portion.

[0012] As a preferred solution of the groove forming milling cutter described in the utility model, wherein: a plurality of the chip withdrawal grooves are arranged between two adjacent blades, and each of the chip withdrawal grooves is curved and spiral.

[0013] As a preferred solution of the forming slot milling cutter described in the utility model, wherein: the plurality of blades each include a blade back and a blade end, and each of the blade ends is spiral.

[0014] As a preferred solution of the forming slot milling cutter described in the utility model, wherein: the cutting head includes an upper cutting part and a lower cutting part, and the heights of the upper cutting part and the lower cutting part from the end face of the blade rod are different from each other.

[0015] Beneficial effects of the utility model:

[0016] Waste chips can be discharged through the chip return groove, which adopts a U-shaped design to provide sufficient chip discharge space, making it easier to discharge waste chips, avoid wear on the workpiece, and improve the quality of the workpiece; and, by adopting a U-shaped design of the chip return groove, the diameter core can be maintained at 60%-65%, greatly improving the rigidity of the tool, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a front structural schematic diagram of a forming slot milling cutter of the utility model.

[0019] Figure 2 It is a schematic diagram of the side structure of a forming slot milling cutter of the utility model.

[0020] Figure 3 The utility model is a schematic diagram of the structure of a cutting head in a forming slot milling cutter.

[0021] Description of the drawings: 100, main unit; 101, handle; 200, cutter head assembly; 201, blade rod; 202, blade; 202a, blade end; 203, chip groove; 204, cutting head; 204a, upper cutting part; 204b, lower cutting part. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Reference Figure 1-Figure 3 , is an embodiment of the utility model, providing a forming slot milling cutter, which comprises:

[0027] The main body unit 100 includes a handle portion 101;

[0028] The cutter head assembly 200 is arranged at one end of the handle portion 101, and the cutter head assembly 200 includes a blade rod 201 and a cutting head 204. The end of the blade rod 201 facing away from the cutting head 204 is fixedly connected to one end of the handle portion 101. The blade rod 201 is provided with a plurality of chip grooves 203 and blades 202. Each chip groove 203 is U-shaped. The core diameter of the blade rod 201 accounts for 60%-65% of the diameter of the blade rod 201, wherein the core diameter plus the height of the chip groove 203 is equal to the diameter of the blade rod 201, and the inside of the chip groove 203 can be ground smooth by a molding grinding wheel.

[0029] Among them, the handle part 101 and the blade rod 201 are made of tungsten-cobalt metal powder and tungsten carbide powder through high-temperature sintering, and the diameter of the blade rod 201 is smaller than the diameter of the handle part 101. The handle part 101 and the blade rod 201 made of tungsten-cobalt metal powder and tungsten carbide powder through high-temperature sintering have higher strength.

[0030] The plurality of chip removal grooves 203 are all disposed between two adjacent blades 202 , and each chip removal groove 203 is curved and spiral-shaped, and waste chips can be discharged through the chip removal groove 203 .

[0031] The plurality of blades 202 each include a blade back and a blade end 202a, each blade end 202a is spiral-shaped, and the shape of the blade 202 is spiral-shaped.

[0032] The cutting head 204 includes an upper cutting portion 204a and a lower cutting portion 204b. The upper cutting portion 204a and the lower cutting portion 204b are at different heights from the end surface of the blade rod 201. The cutting head 204 can be ground with a forming grinding wheel.

[0033] Working principle: During the machining process, the workpiece can be cut by the cutting head 204, and the generated waste chips can be discharged through the chip escape groove 203, wherein the chip escape groove 203 adopts a U-shaped design, so that it has sufficient chip removal space, which is more convenient for waste chip discharge, avoids wear on the workpiece, and improves the quality of the workpiece; and, while the chip escape groove 203 adopts a U-shaped design, the diameter core can be maintained at 60%-65%, which greatly improves the rigidity of the tool, thereby improving the machining efficiency. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A forming slot milling cutter, characterized in that: include: A main body unit (100), the main body unit (100) comprising a handle portion (101); A cutter head assembly (200), the cutter head assembly (200) being arranged at one end of a shank portion (101), the cutter head assembly (200) comprising a blade rod (201) and a cutting head (204), the end of the blade rod (201) facing away from the cutting head (204) being fixedly connected to one end of the shank portion (101), the blade rod (201) being provided with a plurality of chip removal grooves (203) and blades (202), each of the chip removal grooves (203) being U-shaped, and the core diameter of the blade rod (201) accounting for 60%-65% of the diameter of the blade rod (201).

2. A profiled slot milling cutter according to claim 1, characterized in that: The handle portion (101) and the blade rod (201) are made of tungsten-cobalt metal powder and tungsten carbide powder through high-temperature sintering, and the diameter of the blade rod (201) is smaller than the diameter of the handle portion (101).

3. A profiled slot milling cutter according to claim 1, characterized in that: The plurality of chip removal grooves (203) are arranged between two adjacent blades (202), and each chip removal groove (203) is curved and spiral.

4. A profiled slot milling cutter according to claim 1, characterized in that: The plurality of blades (202) each comprise a blade back and a blade end (202a), and each blade end (202a) is spiral-shaped.

5. A profiled slot milling cutter according to claim 1, characterized in that: The cutting head (204) comprises an upper cutting portion (204a) and a lower cutting portion (204b), and the heights of the upper cutting portion (204a) and the lower cutting portion (204b) from the end surface of the blade rod (201) are different from each other.

Images