Double-step equal-front-angle forming milling cutter
By setting up an inequality tooth structure and tool groove on the front angle forming milling cutter with double step and equal steps, the outer circular front angle is controlled to be consistent, and the problem of uneven wear in the prior art is solved, and the tool life and processing quality are improved.
Patent Information
- Application Number
- CN202422393123.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing double-step front angle forming milling cutters have inconsistent outer diameter front angles, resulting in uneven wear, resulting in unqualified processing and premature failure of tools, and serious waste of resources.
A double step equi-angle forming milling cutter is designed. By setting an inequality tooth structure and two cutter grooves on the tool, the outer circular front angles of the first step profile and the second step profile are respectively controlled to ensure that the two front angles are consistent, and the end face one rear angle and two rear angles are set in the cutting teeth to optimize the cutting path to improve wear uniformity.
It achieves uniformity of tool wear, extends service life, reduces replacement frequency and cost, improves processing stability and accuracy, and avoids adverse abnormalities and shock-cutting phenomena.
Smart Images
Figure CN223146078U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machining, in particular to a double-step equal rake angle forming milling cutter. Background Technique
[0002] In the field of modern machining, with the continuous development of industry, the requirements for the precision, surface quality and machining efficiency of parts are getting higher and higher. Especially in the machining of some parts with complex shapes, specific cutters are needed to meet the machining requirements. The double-step equal rake angle forming milling cutter is mainly used for milling workpieces with specific shape requirements. For example, in the fields of mold manufacturing, aerospace component machining, and automotive component manufacturing, workpieces with a double-step structure and strict requirements for cutting angles are often encountered;
[0003] The existing double-step equal rake angle forming milling cutter adopts a single cutter groove, and the rake angles of the two outer diameters are inconsistent. Its large outer diameter rake angle is sharper, resulting in excessive wear, unqualified product patterns, and faster failure of the edge position during the use of the cutter, leading to premature removal of the entire cutter from the machine, while the service life of other positions cannot be fully utilized, resulting in waste of resources. Therefore, we propose a double-step equal rake angle forming milling cutter. Content of the Utility Model
[0004] The purpose of the utility model is to provide a double-step equal rake angle forming milling cutter.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a double-step equal rake angle forming milling cutter, including a cutter handle, the left end of the cutter handle is connected with an unequal tooth structure, the left end of the unequal tooth structure is provided with a front end face, the unequal tooth structure includes a first step profile and a second step profile, the front end face is provided with cutting teeth, the cutting teeth cut through the central area of the front end face during machining, and a first end face relief angle and a second end face relief angle are provided at the end cutting edge of the cutting teeth.
[0006] As a further solution of the utility model: a first step profile first relief angle and a first step profile second relief angle are also provided at the outer cutting edge of the first step profile, and the first step profile first relief angle and the first step profile second relief angle are respectively located on both sides of the outer cutting edge.
[0007] As a further solution of the utility model: a second step profile first relief angle and a second step profile second relief angle are provided in the direction of the outer cutting edge of the second step profile, and the second step profile first relief angle and the second step profile second relief angle are respectively located on both sides of the outer cutting edge.
[0008] As a further solution of the utility model: the cutting teeth on the first step profile and the second step profile are both arranged in an unequal division.
[0009] As a further solution of the present utility model: the front angles of the outer circles of the first step profile and the second step profile are the same.
[0010] As a further solution of the present utility model: two tool grooves are provided on the unequal-tooth structure, and the two tool grooves are respectively controlled at the front angles of the outer circles of the first step profile and the second step profile.
[0011] Adopting the above technical solution, compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. In the present utility model, two tool grooves are respectively controlled at the front angles of the outer circles of the first step profile and the second step profile to ensure that the front angles of the outer circles of the two steps are the same, so as to meet the equal front angles of the double steps, ensure the consistent overall wear efficiency of the tool, thereby improving the service life of the tool, avoiding poor abnormalities in processing, reducing the tool cost, and thus reducing the time and materials wasted by frequent tool replacement;
[0013] 2. In the present utility model, the cutting teeth cut through the central area of the front end face during the processing, so that better chip space can be obtained during processing and the chip removal is smoother. By arranging the cutting teeth on the first step profile and the second step profile in an unequal division, the phenomenon of tool chatter during processing can be avoided, thereby improving the tool life.
[0014] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. Brief Description of the Drawings
[0015] Figure 1 It is a schematic three-dimensional view of the whole of the present utility model;
[0016] Figure 2 It is a schematic front view of the whole of the present utility model
[0017] Figure 3 It is a schematic left view of the whole of the present utility model.
[0018] In the figure: 1, front end face; 101, cutting teeth; 102, first back angle of the end face; 103, second back angle of the end face; 2, first step profile; 201, first back angle of the first step profile; 202, second back angle of the first step profile; 3, second step profile; 301, first back angle of the second step profile; 302, second back angle of the second step profile; 4, tool shank; 6, unequal-tooth structure. Detailed Embodiment
[0019] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model.
[0020] In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0021] Please refer to the attached Figure 1 - attached Figure 3 For the double-step equal rake angle forming milling cutter of the present utility model, it includes a tool shank 4. The left end of the tool shank 4 is connected with an unequal-tooth structure 6. The left end of the unequal-tooth structure 6 is provided with a front end face 1. The unequal-tooth structure 6 includes a first step profile 2 and a second step profile 3. Cutting teeth 101 are arranged on the front end face 1. The cutting teeth 101 cut through the central area of the front end face 1 during the machining process. A first end face relief angle 102 and a second end face relief angle 103 are provided at the end face cutting edge of the cutting teeth 101.
[0022] In an embodiment of the present utility model: A first step profile first relief angle 201 and a first step profile second relief angle 202 are further provided at the outer circle cutting edge of the first step profile 2. The first step profile first relief angle 201 and the first step profile second relief angle 202 are respectively located on both sides of the outer circle cutting edge.
[0023] In an embodiment of the present utility model: A second step profile first relief angle 301 and a second step profile second relief angle 302 are provided in the direction of the outer circle cutting edge of the second step profile 3. The second step profile first relief angle 301 and the second step profile second relief angle 302 are respectively located on both sides of the outer circle cutting edge.
[0024] In an embodiment of the present utility model: The cutting teeth on the first step profile 2 and the second step profile 3 are all arranged in an unequal-tooth manner.
[0025] In an embodiment of the present utility model: The outer circle rake angles of the first step profile 2 and the second step profile 3 are the same.
[0026] In an embodiment of the present utility model: Two tool grooves are provided on the unequal-tooth structure 6, and the two tool grooves respectively control the outer circle rake angles of the first step profile 2 and the second step profile 3.
[0027] Example 1. Please refer to the attached Figure 1 - attached Figure 3The milling cutter mainly includes a shank 4 and an unequally divided tooth structure 6 connected thereto. The left end of the unequally divided tooth structure 6 is designed with a front end face 1, and cutting teeth 101 are arranged on the front end face 1. These cutting teeth 101 can accurately cut through the central area of the front end face 1 during the processing to ensure the processing accuracy. In particular, the double-step forming milling cutter in this embodiment realizes precise control of the outer circular rake angle of the first step contour 2 and the outer circular rake angle of the second step contour 3 by setting two tool grooves on its unequally divided tooth structure 6. These two tool grooves not only ensure that the outer circular rake angles of the first step and the second step are consistent, but also greatly improve the overall performance of the tool. By maintaining the design of double-step equal rake angles, the milling cutter can ensure that the wear efficiency of various parts of the tool is consistent during use, thereby significantly improving the service life of the tool and avoiding material waste caused by processing abnormalities and the time cost caused by frequent tool replacement.
[0028] Example 2, please refer to the attached Figure 1 -Attached Figure 3 The cutting teeth 101 are arranged on the front end face 1 and can cut through the central area of the face during machining. This design not only improves the machining accuracy, but also improves the chip space, making chip removal smoother. In addition, the cutting teeth on the first step profile 2 and the second step profile 3 are unequally divided. This design avoids the tool chattering phenomenon that may occur during machining. Tool chattering is one of the common problems in mechanical machining. It not only affects the machining quality, but also shortens the service life of the tool. By adopting an unequal cutting tooth layout, the milling cutter in this embodiment can significantly improve the machining stability and reduce the adverse consequences caused by tool chattering, thereby further extending the service life of the tool.
[0029] Specifically, two tool grooves are used to control the outer circular rake angle of the first step contour 2 and the outer circular rake angle of the second step contour 3 respectively, ensuring that the outer circular rake angles of the two steps are consistent, so as to meet the double-step equal rake angle and ensure that the overall wear efficiency of the tool is consistent, thereby increasing the tool life, avoiding processing abnormalities, reducing tool costs, and reducing the time and material wasted by frequent tool replacement.
[0030] Specifically, the cutting teeth 101 cut through the central area of the front end face 1 during the machining process, so that there is a better chip holding space during machining and chip removal is smoother. The cutting teeth on the first step profile 2 and the second step profile 3 are unequally arranged, which can avoid tool chattering during machining and thus increase tool life.
[0031] Working principle:
[0032] First, the unequally divided tooth structure 6 is firmly connected through the tool handle 4 to ensure the stability of the foundation of the cutting operation. Then, the cutting tooth 101 starts to cut into the workpiece from the central area of the front end face 1, and utilizes its unique end face first back angle 102 and end face second back angle 103 design to achieve efficient and precise cutting. During the cutting process, two carefully designed tool grooves act on the outer circular front angles of the first step profile 2 and the second step profile 3 respectively to ensure that the two are consistent, thereby optimizing the tool wear efficiency and extending the service life. At the same time, the unequally divided cutting tooth layout effectively avoids the tool chattering phenomenon and improves the processing stability. The chips generated by cutting are smoothly discharged through the optimized chip space to ensure the continuity and efficiency of the processing process. At this point, the entire workflow is completed.
[0033] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.
[0035] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above-mentioned utility model, the details of its power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by technical personnel in this field.
[0036] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.
[0037] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments.
[0038] For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present utility model.
Claims
1. Double-step equal rake angle forming milling cutter, including a tool shank (4), characterized in that: The left end of the tool shank (4) is connected with an unequal-tooth structure (6). The left end of the unequal-tooth structure (6) is provided with a front end face (1). The unequal-tooth structure (6) includes a first step profile (2) and a second step profile (3). The front end face (1) is provided with cutting teeth (101). The cutting teeth (101) cut through the central area of the front end face (1) during the machining process. A first end face relief angle (102) and a second end face relief angle (103) are provided at the end face cutting edge of the cutting teeth (101).
2. The double-step equal rake angle forming milling cutter according to claim 1, wherein: A first step profile first relief angle (201) and a first step profile second relief angle (202) are further provided at the outer circle cutting edge of the first step profile (2). The first step profile first relief angle (201) and the first step profile second relief angle (202) are respectively located on both sides of the outer circle cutting edge.
3. The double-step equal rake angle forming milling cutter according to claim 1, characterized in that: A second step profile first relief angle (301) and a second step profile second relief angle (302) are provided in the outer circle cutting edge direction of the second step profile (3). The second step profile first relief angle (301) and the second step profile second relief angle (302) are respectively located on both sides of the outer circle cutting edge.
4. The double-step equal rake angle forming milling cutter according to claim 2 or 3, characterized in that: The cutting teeth on the first step profile (2) and the second step profile (3) are all arranged in an unequal-tooth manner.
5. The double-step equal rake angle forming milling cutter according to claim 1, wherein: The outer circle front angles of the first step profile (2) and the second step profile (3) are the same.
6. The double-step equal rake angle forming milling cutter according to claim 1, characterized in that: Two tool grooves are provided on the unequal-tooth structure (6), and the two tool grooves are respectively controlled at the outer circle front angles of the first step profile (2) and the second step profile (3).