Reducing cutter and machining tool
By designing a variable-diameter cutting tool, the problem of traditional cutting tools being unable to simultaneously cut internal holes and end faces was solved, achieving efficient and seamless machining results and improving machining quality.
Patent Information
- Application Number
- CN202520441045.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In existing technologies, when machining grooved products, traditional cutting tools cannot simultaneously handle the machining of inner holes and the cutting of end faces, resulting in tool marks. Furthermore, manual polishing is inefficient and easily scratches the product.
Design a variable diameter cutting tool, including a cutting insert and a cutting head. The cutting head has first and second connecting parts, the inner diameter of the first connecting part is smaller than that of the second connecting part, the cutting insert is detachably mounted on the side wall of the first connecting part, and has an avoidance notch to achieve simultaneous machining of the inner hole and the end face groove.
It improves processing efficiency, avoids tool marks, enhances processing quality, and avoids the inefficiency and scratch risk of manual polishing.
Smart Images
Figure CN223876215U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lathe machining technical field especially, relates to a variable diameter cutter and processing lathe. BACKGROUND
[0002] When processing the recess product, many recesses are not single hole or end face structure, but have both features. For example, some recesses need to process an annular groove inside the deep hole, or cut out the recess connected with the hole on the end face. The composite structure requires the cutter to have the ability of hole processing and end face groove cutting, and the single cutter often cannot meet the requirements, and the traditional processing method adopts two cutters: one hole boring cutter and one end face groove cutter. However, the installation position or cutter compensation parameters of the two cutters have slight deviation, which leads to the transition area prone to appear the cutter mark, and cannot meet the design requirements of the product appearance.
[0003] In the prior art, the obvious cutter mark problem is usually solved by manual sandpaper polishing, but the polishing time is about 1H / piece, the time is long, the efficiency is low, and the product material is prone to scratch or scratch. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a variable diameter cutter and processing lathe to solve the problem that the time is long, the efficiency is low, and the product material is prone to scratch or scratch in the prior art.
[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:
[0006] On the one hand, a variable diameter cutter is provided, which comprises:
[0007] A blade;
[0008] A cutter head, the cutter head comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected vertically, the inner diameter of the first connecting part is smaller than that of the second connecting part, the blade is detachably arranged on the first connecting part and extends out of the side wall of the first connecting part, and the first connecting part is provided with a avoiding notch, and the avoiding notch is located on the cutting side of the blade.
[0009] As an optional technical scheme of the variable diameter cutter, the first connecting part is arranged at the edge position of the second connecting part.
[0010] As an optional technical scheme of the variable diameter cutter, the first connecting part and the second connecting part are integrally formed.
[0011] As an optional technical scheme of the variable diameter cutter, the cutter head further comprises a connecting surface, and the connecting surface is arranged obliquely on the first connecting part and the second connecting part.
[0012] As an alternative technical solution of the variable-diameter cutter, the blade is inwardly inclinedly arranged at the end of the first connecting part, and the inclination angle between the blade and the end face of the first connecting part is 3°.
[0013] As an alternative technical solution of the variable-diameter cutter, the blade is provided with a countersunk hole at the center, the end of the first connecting part is provided with a threaded hole, and a countersunk bolt is screwed in the threaded hole through the countersunk hole to detachably fix the blade to the first connecting part.
[0014] As an alternative technical solution of the variable-diameter cutter, the variable-diameter cutter further comprises a connecting rod, and the cutter head is detachably connected to one end of the connecting rod.
[0015] As an alternative technical solution of the variable-diameter cutter, the end of the connecting rod is provided with a threaded hole, and a through hole is correspondingly provided on the second connecting part, and a fastener is screwed in the threaded hole through the through hole to detachably connect the cutter head to the connecting rod.
[0016] As an alternative technical solution of the variable-diameter cutter, the threaded hole and the through hole are both provided with a plurality of intervals.
[0017] On the other hand, a machining tool is provided, comprising the above variable-diameter cutter.
[0018] The beneficial effects of the utility model are as follows:
[0019] The application discloses a variable-diameter cutter and a machining tool. The variable-diameter cutter comprises a blade and a cutter head, the cutter head comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected perpendicularly, the inner diameter of the first connecting part is smaller than that of the second connecting part, the blade is detachably arranged on the first connecting part and extends out of the side wall of the first connecting part, the first connecting part is provided with a relief gap, and the relief gap is located on the cutting side of the blade. After a small-size groove is bored on the end face of a workpiece to be machined, the first connecting part can extend into the groove with a smaller size to expand the groove, and the interference of the first connecting part on the blade can be avoided by the combined action of the blade extending out of the side wall of the first connecting part and the relief gap; the variable-diameter cutter can have the functions of an inner hole boring cutter and an end face groove cutter, the tool changing mark can be avoided, and the quality and machining efficiency of the workpiece to be machined are improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the contents of the embodiments of the present application and the drawings by those skilled in the art without any creative effort.
[0021] Figure 1 is a use schematic diagram of the variable-diameter cutter provided by the embodiments of the present application.
[0022] In the drawings:
[0023] 10, blade; 11, countersunk bolt; 20, cutter head; 21, first connecting part; 22, second connecting part; 30, connecting rod. DETAILED DESCRIPTION
[0024] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described drawings.
[0025] In the present application, the terms "comprising", "containing", "having" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0026] In the present application, the term "and / or" is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents a "and / or" relationship between the front and rear associated objects.
[0027] In the present application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, direct connection means that two parts or components are connected together without setting intermediate parts, and indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.
[0028] In this application, those of ordinary skill in the art will understand that the relative terms used in connection with a quantity or a condition (for example, "about", "approximately", "substantially" and the like) include the stated value and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with a measurement of a particular value, the tolerance caused by manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. The relative terms can refer to a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value plus or minus. The numerical values not using the relative terms should also be disclosed as specific values with tolerances. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to a certain number of degrees (for example, 1 degree, 5 degrees, 10 degrees or more) plus or minus on the basis of the indicated angle.
[0029] In this application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.
[0030] In this application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under" or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, the left below, the right below, the front below and the back below, etc.
[0031] The composite structure requires the tool to have the ability of inner hole machining and end face slotting at the same time, and a single tool is often difficult to balance. The traditional machining method uses two tools: one inner hole boring tool and one end face slotting tool. However, there is a slight deviation between the installation positions or tool compensation parameters of the two tools, which leads to the easy appearance of joint marks in the transition area, and cannot meet the design requirements of the product appearance. In the prior art, manual sanding is usually used to solve the problem of obvious joint marks, but the sanding time is about 1H / piece, which is relatively long and low in efficiency, and the product material is easy to scratch or scratch.
[0032] To solve the above problems, the embodiment provides a machining machine tool comprising a variable diameter tool. Wherein, referring to Figure 1The variable-diameter cutter comprises a blade 10 and a cutter head 20, the cutter head 20 comprises a first connecting part 21 and a second connecting part 22, the first connecting part 21 and the second connecting part 22 are vertically connected, the inner diameter of the first connecting part 21 is smaller than the inner diameter of the second connecting part 22, the blade 10 is detachably arranged on the first connecting part 21 and extends out of the side wall of the first connecting part 21, the first connecting part 21 is provided with a relief gap, and the relief gap is located on the cutting side of the blade 10. After a small-size groove is bored on the end face of the workpiece, the first connecting part 21 can extend into the small-size groove for expanding the groove, the blade 10 extends out of the side wall of the first connecting part 21 and the relief gap cooperates to avoid the interference of the first connecting part 21 on the blade 10; the variable-diameter cutter can realize the functions of the hole boring cutter and the end face groove cutter, avoids the switching of the cutters to cause the joint marks, and improves the quality and the processing efficiency of the workpiece.
[0033] In the embodiment, the cutting side of the blade 10 extends out of the side wall of the first connecting part 21 by 3 mm to avoid the interference of the first connecting part 21 on the blade 10. It should be noted that the distance by which the cutting side of the blade 10 extends out of the side wall of the first connecting part 21 can be improved according to actual requirements, which is only an example and is not limited.
[0034] It should be noted that the present application only relates to the improvement of the cutter structure and does not relate to the improvement of the material, the materials of the blade 10 and the cutter head 20 can be conventional cutter materials, which are not listed here.
[0035] Further, the first connecting part 21 is arranged at the edge position of the second connecting part 22. In the embodiment, the second connecting part 22 is arranged as a cylinder, the outer side surface of the first connecting part 21 is arranged as an arc surface and smoothly transitions with the second connecting part 22 to avoid the second connecting part 22 protruding from the first connecting part 21 and the blade 10 to affect the processing. In the embodiment, the first connecting part 21 and the second connecting part 22 are integrally formed. In other embodiments, the first connecting part 21 and the second connecting part 22 can be separately manufactured and connected through fasteners or clamping blocks and clamping grooves.
[0036] Further, the cutter head 20 further comprises a connecting surface, the connecting surface is arranged at the first connecting part 21 and the second connecting part 22. Since the first connecting part 21 and the second connecting part 22 are variable-diameter structures, the stress at the connecting position is large and is prone to deformation and fracture, and the arrangement of the connecting surface can disperse the stress at the connecting position of the first connecting part 21 and the second connecting part 22 to increase the service life of the cutter head 20.
[0037] Further, the blade 10 is inwardly and obliquely arranged at the end of the first connecting part 21, the oblique angle between the blade 10 and the end surface of the first connecting part 21 is 3°, the length of the cutter head 20 is 45 mm, and the maximum width of the cutter head 20 is 40 mm.
[0038] Further, the blade 10 is provided with a countersunk hole in the center, the end of the first connecting part 21 is provided with a threaded hole, and the countersunk bolt 11 is screwed into the threaded hole through the countersunk hole to detachably fix the blade 10 to the first connecting part 21. The countersunk hole and the countersunk bolt 11 are arranged to avoid the connecting part protruding from the surface of the blade 10 to scratch the inner wall of the groove. In other embodiments, a clamping groove can be arranged on the side wall of the blade 10, and a clamping block is arranged on the first connecting part 21, and the blade 10 and the first connecting part 21 are fixed by interference fit of the clamping groove and the clamping block.
[0039] Further, the variable-diameter cutter further comprises a connecting rod 30, and the cutter head 20 is detachably connected to one end of the connecting rod 30. Specifically, the end of the connecting rod 30 is provided with a threaded hole, and the second connecting part 22 is correspondingly provided with a through hole, and a fastener is screwed into the threaded hole through the through hole to detachably connect the cutter head 20 to the connecting rod 30. In this embodiment, the threaded hole and the through hole are both arranged with multiple holes. In other embodiments, the cutter head 20 and the connecting rod 30 can be riveted. The detachable connection of the cutter head 20 and the connecting rod 30 increases the versatility of the cutter head 20, and the cutter head 20 can be replaced with a connecting rod 30 of different length to adapt to workpieces of different depths. In other embodiments, the connecting rod 30 can be arranged as a telescopic rod to adapt to workpieces of different depths.
[0040] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A variable diameter cutter characterized by, The variable-diameter cutter comprises: a blade (10); a cutter head (20) comprising a first connecting portion (21) and a second connecting portion (22), the first connecting portion (21) and the second connecting portion (22) being connected perpendicularly, the inner diameter of the first connecting portion (21) being smaller than that of the second connecting portion (22), the blade (10) being detachably arranged on the first connecting portion (21) and extending out of the side wall of the first connecting portion (21), the first connecting portion (21) being provided with a relief notch on the cutting side of the blade (10).
2. The variable diameter cutter of claim 1 wherein, The first connecting portion (21) is arranged at the edge of the second connecting portion (22).
3. The variable diameter cutter of claim 1 wherein, The first connecting portion (21) and the second connecting portion (22) are integrally formed.
4. The variable diameter cutter of claim 1 wherein, The cutter head (20) further comprises a connecting surface, which is arranged obliquely on the first connecting portion (21) and the second connecting portion (22).
5. The variable diameter cutter of claim 1 wherein, The blade (10) is arranged obliquely inwardly at the end of the first connecting portion (21), and the angle between the blade (10) and the end surface of the first connecting portion (21) is 3°.
6. The variable diameter cutter of claim 1 wherein, The blade (10) is provided with a countersunk hole at the center, the end of the first connecting portion (21) is provided with a threaded hole, and a countersunk bolt (11) is screwed in the threaded hole through the countersunk hole to detachably fix the blade (10) on the first connecting portion (21).
7. A variable diameter cutter according to any of claims 1-6 wherein, The variable-diameter cutter further comprises a connecting rod (30), and one end of the cutter head (20) is detachably connected with the connecting rod (30).
8. The variable diameter cutter of claim 7 wherein, The end of the connecting rod (30) is provided with a threaded hole, and the second connecting portion (22) is correspondingly provided with a through hole, and a fastener is screwed in the threaded hole through the through hole to detachably connect the cutter head (20) with the connecting rod (30).
9. The variable diameter cutter of claim 8 wherein, The threaded hole and the through hole are both provided with a plurality of intervals.
10. A machine tool, characterized by The variable-diameter cutter comprises: the variable-diameter cutter according to any one of claims 1-9.