Sleeve type outer diameter boring cutter structure

Abstract

The utility model belongs to the technical field of milling cutters, and particularly relates to a sleeve type outer diameter boring cutter structure which comprises a base, a workpiece and a cutter body. The workpiece is arranged on the base, and the cutter body is arranged above the workpiece; a hollow cavity is formed in the cutter body; at least one group of cutting edges are arranged at the bottom end of the hollow cavity; an adjusting mechanism used for adjusting the machining depth of the workpiece is arranged in the hollow cavity. The diameter of the hollow cavity is larger than that of the workpiece, and the workpiece can enter or be separated from the hollow cavity. The cutter body is arranged to be of the hollow structure, when a workpiece is machined, the cutting edge at the bottom end of the hollow cavity is used for internally cutting the surface of the workpiece, the situation that the machining precision of the workpiece is affected due to insufficient clearance positions is avoided, the rigidity of the cutter body can be ensured, and the cutter breaking phenomenon is prevented; workers can conveniently adjust the machining depth of the workpiece, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a sleeve type outer diameter boring cutter structure. Background Art

[0002] Milling cutters are commonly used tools in metal processing. They are widely used in machinery manufacturing, automobile manufacturing, aerospace and other fields. According to their different shapes, functions and uses, milling cutters can be divided into end mills, face mills, flat mills, etc. Typical milling processes include milling planes, chamfering or milling edges, milling contours, milling slots, milling cavities, milling keyways, etc.

[0003] For example, the Chinese patent document CN216706081U, the subject name is: Milling cutter mentions "including a shank and a cutter head, the milling cutter has a central axis, the cutter head includes a first cutting edge and a plurality of second cutting edges, the first cutting edge and the plurality of second cutting edges are connected in sequence around the central axis, the first cutting edge is provided with a first peripheral cutting edge and a cutting edge band provided along the outer edge of the first peripheral cutting edge, the plurality of second cutting edges are provided with a second peripheral cutting edge, a peripheral cutting edge chip groove is formed between adjacent first peripheral cutting edges and the plurality of second peripheral cutting edges, and on any cross section of the cutter head perpendicular to the central axis, the distance from a point on the cross section of the first peripheral cutting edge to the central axis is greater than the distance from a point on the cross section at a corresponding position of any second peripheral cutting edge to the central axis". However, if the existing milling cutter has insufficient clearance, a milling cutter with a smaller diameter must be used for processing. However, the milling cutter with a smaller diameter has insufficient rigidity, and is prone to breakage or serious tool failure during processing, which cannot meet production requirements. Utility Model Content

[0004] The utility model aims to provide a sleeve type outer diameter boring tool structure, aiming to solve the technical problem in the prior art that a milling cutter with a smaller diameter has insufficient rigidity and is prone to tool breakage or serious tool failure during machining.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides a sleeve-type outer diameter boring tool structure, comprising a base, a workpiece and a tool body; the workpiece is arranged on the base, and the tool body is arranged above the workpiece; a hollow cavity is provided in the tool body; at least one group of cutting edges is provided at the bottom end of the hollow cavity; an adjustment mechanism for adjusting the processing depth of the workpiece is provided in the hollow cavity; the diameter of the hollow cavity is larger than the diameter of the workpiece, and the workpiece can enter or exit the hollow cavity.

[0006] Optionally, the tool body includes a mounting portion and a processing portion, the mounting portion is connected to the processing portion; and the cutting edge is arranged at the bottom end of the processing portion.

[0007] Furthermore, the cutting edges are arranged in two groups, and the two groups of cutting edges are arranged oppositely on the inner wall of the processing part; when the workpiece is processed, the workpiece enters the processing part, and the cutting edges come into contact with the surface of the workpiece.

[0008] Furthermore, the mounting portion and the processing portion are integrally formed.

[0009] Furthermore, the adjusting mechanism is disposed between the mounting portion and the processing portion, and the adjusting mechanism is slidably connected to the mounting portion.

[0010] Furthermore, the adjustment mechanism includes a positioning plate; a plurality of rollers are provided at one end of the positioning plate close to the processing portion, and a slider is connected to the other end of the positioning plate; the slider is slidably connected to the mounting portion.

[0011] Furthermore, a slide rail is provided inside the mounting portion, and the slider is slidably connected inside the slide rail; a fixing ring corresponding to the slider one by one is provided outside the mounting portion; and the fixing ring is connected to the slider via a locking bolt.

[0012] Furthermore, the adjustment mechanism also includes a scale, which is arranged on the mounting portion and located outside the slide rail.

[0013] The above one or more technical solutions in the sleeve type outer diameter boring tool structure provided by the embodiment of the utility model have at least one of the following technical effects:

[0014] By setting the tool body into a hollow structure, when the workpiece is processed, the cutting edge at the bottom of the hollow cavity is used to incise the workpiece surface, thereby avoiding affecting the processing accuracy of the workpiece due to insufficient clearance, ensuring the rigidity of the tool body and preventing tool breakage. At the same time, an adjustment mechanism is also provided to facilitate the staff to adjust the processing depth of the workpiece and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a sleeve-type outer diameter boring tool structure provided in an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the internal structure of a sleeve-type outer diameter boring tool structure provided in an embodiment of the utility model;

[0017] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0018] Figure 4 This is a schematic diagram of the overall structure of the adjustment mechanism provided in an embodiment of the utility model.

[0019] Among them, the reference numerals in the figure are:

[0020] 10-base 11-workpiece 20-tool body

[0021] 201-installation part 202-processing part 21-hollow cavity

[0022] 22-cutting edge 23-slide rail 24-fixing ring

[0023] 30-adjustment mechanism 31-positioning plate 32-roller

[0024] 33- Slider 34- Scale. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0029] In one embodiment of the present invention, Figure 1-Figure 4 As shown, a sleeve-type outer diameter boring tool structure is provided, comprising a base 10, a workpiece 11 and a tool body 20. The workpiece 11 is arranged on the base 10, and the tool body 20 is arranged above the workpiece 11. A hollow cavity 21 is arranged in the tool body 20. At least one set of cutting edges 22 is arranged at the bottom end of the hollow cavity 21. An adjustment mechanism 30 for adjusting the processing depth of the workpiece 11 is arranged in the hollow cavity 21. The diameter of the hollow cavity 21 is greater than the diameter of the workpiece 11, and the workpiece 11 can enter or leave the hollow cavity 21.

[0030] When the workpiece 11 is processed, the surface of the workpiece 11 is incised by the cutting edge 22 at the bottom of the hollow cavity 21, so as to avoid affecting the processing accuracy of the workpiece 11 due to insufficient clearance, and ensure the rigidity of the tool body 20 to prevent the tool from breaking. At the same time, an adjustment mechanism 30 is provided to facilitate the staff to adjust the processing depth of the workpiece 11 and improve the processing efficiency.

[0031] Specifically, in another embodiment of the present invention, Figure 1-Figure 4 As shown, the tool body 20 includes a mounting portion 201 and a processing portion 202, and the mounting portion 201 is connected to the processing portion 202. The cutting edge 22 is arranged at the bottom end of the processing portion 202. The cutting edge 22 is arranged in two groups, and the two groups of cutting edges 22 are arranged on the inner wall of the processing portion 202 opposite to each other. When the workpiece 11 is processed, the workpiece 11 enters the processing portion 202, and the cutting edge 22 conflicts with the surface of the workpiece 11. The mounting portion 201 and the processing portion 202 are integrally formed. Before processing the workpiece 11, the mounting portion 201 of the tool body 20 is clamped on the spindle. During processing, the tool body 20 is driven to rotate by the spindle, and the surface of the workpiece 11 is processed by the cutting edge 22.

[0032] The adjustment mechanism 30 is disposed between the mounting portion 201 and the processing portion 202, and the adjustment mechanism 30 is slidably connected to the mounting portion 201. By adjusting the position of the adjustment mechanism 30 on the mounting portion 201, the processing depth of the workpiece 11 is adjusted, thereby improving the practicality of the tool structure.

[0033] The adjustment mechanism 30 includes a positioning plate 31. A plurality of rollers 32 are provided at one end of the positioning plate 31 close to the processing portion 202, and a slider 33 is connected to the other end of the positioning plate 31. The slider 33 is slidably connected to the mounting portion 201. A slide rail 23 is provided in the mounting portion 201, and the slider 33 is slidably connected in the slide rail 23. A fixing ring 24 corresponding to the slider 33 is provided on the outer side of the mounting portion 201. The fixing ring 24 is connected to the slider 33 by a locking bolt. When adjusting the adjustment mechanism 30, the positioning plate 31 is first moved in the slide rail 23 to the position required for processing, and then the locking bolt is tightened so that the fixing ring 24 is tightly fitted with the mounting portion 201, thereby achieving the fixation of the adjustment mechanism 30.

[0034] The adjustment mechanism 30 further includes a scale 34, which is disposed on the mounting portion 201 and outside the slide rail 23. By providing the scale 34, it is convenient for the staff to view the adjustment size, simplify the adjustment steps, and improve the practicality of the tool structure.

[0035] By setting the tool body 20 as a hollow structure, when the workpiece 11 is processed, the surface of the workpiece 11 is incised by the cutting edge 22 at the bottom of the hollow cavity 21, thereby avoiding affecting the processing accuracy of the workpiece 11 due to insufficient clearance space, and ensuring the rigidity of the tool body 20 to prevent tool breakage. At the same time, an adjustment mechanism 30 is also provided to facilitate the staff to adjust the processing depth of the workpiece 11 and improve the processing efficiency.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sleeve type outer diameter boring tool structure, characterized in that: The tool comprises a base, a workpiece and a tool body; the workpiece is arranged on the base, and the tool body is arranged above the workpiece; a hollow cavity is arranged in the tool body; at least one set of cutting edges is arranged at the bottom end of the hollow cavity; an adjusting mechanism for adjusting the processing depth of the workpiece is arranged in the hollow cavity; The diameter of the hollow cavity is greater than the diameter of the workpiece, and the workpiece can enter or exit the hollow cavity.

2. A sleeve type outer diameter boring tool structure according to claim 1, characterized in that: The tool body comprises a mounting portion and a processing portion, wherein the mounting portion is connected to the processing portion; and the cutting edge is arranged at the bottom end of the processing portion.

3. A sleeve type outer diameter boring tool structure according to claim 2, characterized in that: The cutting edges are arranged in two groups, and the two groups of cutting edges are arranged oppositely on the inner wall of the processing part; when the workpiece is processed, the workpiece enters the processing part, and the cutting edges collide with the surface of the workpiece.

4. A sleeve type outer diameter boring tool structure according to claim 3, characterized in that: The mounting portion and the processing portion are integrally formed.

5. A sleeve type outer diameter boring tool structure according to claim 2, characterized in that: The adjusting mechanism is arranged between the mounting portion and the processing portion, and the adjusting mechanism is slidably connected to the mounting portion.

6. A sleeve type outer diameter boring tool structure according to claim 5, characterized in that: The adjustment mechanism comprises a positioning plate; a plurality of rollers are arranged at one end of the positioning plate close to the processing part, and a sliding block is connected to the other end of the positioning plate; the sliding block is slidably connected to the mounting part.

7. A sleeve type outer diameter boring tool structure according to claim 6, characterized in that: A slide rail is arranged inside the mounting portion, and the slider is slidably connected inside the slide rail; a fixing ring corresponding to the slider is arranged on the outer side of the mounting portion; and the fixing ring is connected to the slider via a locking bolt.

8. A sleeve type outer diameter boring tool structure according to claim 7, characterized in that: The adjustment mechanism also includes a scale, which is arranged on the mounting portion and located outside the slide rail.

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