Angle-adjustable reducing shaft sleeve for machining rectangular threads through grooving cutter

Abstract

The utility model discloses an angle-adjustable reducing shaft sleeve for machining rectangular threads by using a grooving cutter, which belongs to the technical field of machining turning cutters and comprises an auxiliary sleeve, a rotary cutter sleeve, a cut-off cutter and a pressing component. The rotary cutter sleeve is arranged in an inner cavity of the auxiliary sleeve, and the end part of the rotary cutter sleeve is positioned outside the auxiliary sleeve; the cut-off tool is arranged in the rotary tool sleeve and is fastened with the rotary tool sleeve; the pressing assembly is connected to the auxiliary sleeve in a threaded mode and makes contact with the rotary cutter sleeve. The cut-off tool is fastened in the rotary tool sleeve, rotation of the cut-off tool can be achieved by rotating the rotary tool sleeve so as to adjust the angle, the machining requirements of rectangular threads with different lead angles can be met, the rotary tool sleeve can be fastened with the auxiliary sleeve after being rotated to a proper angle by screwing the fourth fixing bolt, and machining precision is improved. The operation is simple and convenient, and the rotary cutter sleeve can also be used as a cutter sleeve of a normal cutter, so that the applicability of the cutter sleeve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining turning tools, in particular to an adjustable angle and diameter reducing shaft sleeve for machining rectangular threads with a grooving cutter. Background Art

[0002] When processing rectangular threads, it is usually necessary to do it on a lathe. The traditional processing method generally requires a rectangular thread forming turning tool or a welding tool. When using a welding tool, the helix angle is calculated and then the welding turning tool is sharpened. After grinding the corresponding angle, processing is performed. When sharpening, the thread lead angle of the rectangular thread is generally larger, and it is time-consuming to sharpen both sides. In order to reduce the surface roughness of the thread tooth side, a 0.3mm-0.5mm finishing edge should be ground on the cutting edge on both sides of the turning tool.

[0003] When processing multiple or large-pitch rectangular threads, one tool can hardly meet the processing requirements. The tool needs to be re-sharpened and the coordinate points of the tool on the machine tool need to be modified. In addition, when processing different batches of products, the material and the helix angle of the thread are different, so the tool needs to be re-prepared and re-sharpened. This adds many preparation steps to the processing of rectangular threads, wastes a lot of time, and reduces processing efficiency. If special tools are used, when the number of products is large, special blades of different materials and tools of different angles need to be prepared, which greatly increases the additional economic cost.

[0004] Therefore, we propose an adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter in order to solve the above-mentioned problems.

[0005] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0006] The utility model aims to provide an adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter, so as to solve the problems in the current market raised by the above background technology.

[0007] To achieve the above object, the utility model provides an adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter, comprising an auxiliary sleeve, a rotating cutter sleeve, a cutting cutter and four fixing bolts;

[0008] The rotating knife sleeve is arranged in the inner cavity of the auxiliary sleeve, and the end portion is located outside the auxiliary sleeve;

[0009] The cutting knife is arranged in the rotating knife sleeve and is fastened to the rotating knife sleeve;

[0010] The fixing bolt is threadedly connected to the auxiliary sleeve and contacts the rotating knife sleeve.

[0011] Preferably, the rotary knife sleeve comprises a sleeve body, and the sleeve body is provided with a mounting groove;

[0012] The outer surface of the sleeve body is provided with an arc-shaped groove, the sleeve body is provided with bolt holes one on both sides of the arc-shaped groove, and the bolt holes one are provided with fixing bolts one;

[0013] The sleeve body is also provided with a contact groove which is in a relative position to the arc groove, and the sleeve body is provided with a second fixing bolt which is on the same side as the arc groove.

[0014] Preferably, the cutting knife comprises a knife body and a blade;

[0015] The knife body and the blade are fastened by fixing bolts three;

[0016] The knife body is located in the mounting groove of the sleeve body and is fastened to the sleeve body by a fixing bolt.

[0017] Preferably, the fixing bolts four are provided in plurality and are arranged at equal distances, and the bottom ends of the fixing bolts four extend into the arc-shaped groove.

[0018] Preferably, the surface of the sleeve body on which the arc groove is formed has the same curvature as the inner cavity of the auxiliary sleeve;

[0019] The surfaces of the sleeve body located on both sides of the arc-shaped groove are both planes.

[0020] Preferably, the sleeve body is a structure composed of two cylinders of different sizes, and the end surface of the sleeve body is also provided with a scale.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model realizes angle adjustment by arranging an auxiliary sleeve, a rotating knife sleeve and a fixing bolt four, wherein the cutting knife is fastened in the rotating knife sleeve, and the cutting knife can be rotated by rotating the rotating knife sleeve to adjust the angle, which can meet the processing requirements of rectangular threads with different thread lead angles, and the rotating knife sleeve can be fastened to the auxiliary sleeve after being rotated to a suitable angle by twisting the fixing bolt four, the operation is simple and convenient, and the rotating knife sleeve can also be used as a knife sleeve of a normal tool, thereby increasing its applicability.

[0023] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the installation of the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure after the auxiliary sleeve is hidden

[0026] Figure 3 It is a structural schematic diagram of the rotary knife sleeve of the utility model;

[0027] Figure 4 For the utility model Figure 3 Front view of

[0028] Figure 5 It is a structural schematic diagram of a cutting knife of the utility model.

[0029] In the figure: 1. Auxiliary sleeve; 2. Rotating knife sleeve; 3. Cutting knife; 4. Fixing bolt 4;

[0030] 201, sleeve body; 202, mounting groove; 203, bolt hole 1; 204, arc groove; 205, fixing bolt 1; 206, contact groove; 207, fixing bolt 2; 208, scale;

[0031] 301, knife body; 302, blade; 303, fixing bolt three. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. It should be pointed out that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size, and any size is only exemplary and not restrictive.

[0033] See also Figure 1-Figure 5 , an adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter, comprising: an auxiliary sleeve 1, a rotating cutter sleeve 2, a cutting cutter 3 and four fixing bolts 4;

[0034] The auxiliary sleeve 1 is provided with a cylindrical cavity;

[0035] The rotary knife sleeve 2 includes a sleeve body 201, which is a structure composed of two cylinders of different sizes, and the smaller cylinder in the sleeve body 201 has four faces, wherein the upper and lower faces are arc surfaces with the same arc as the cavity of the auxiliary sleeve 1, and the left and right faces are planes, the sleeve body 201 is provided with a mounting groove 202, and the outer surface of the upper arc surface of the sleeve body 201 is provided with an arc groove 204 with the same arc, one of the planes of the sleeve body 201 is provided with a bolt hole 203, and a fixing bolt 205 is provided in the bolt hole 203, a contact groove 206 is provided on the lower arc surface of the sleeve body 201, and the contact groove penetrates the sleeve body 201, the sleeve body 201 is provided with a fixing bolt 207 on the same side as the arc groove 204, and a scale 208 is provided on the end face of the sleeve body 201;

[0036] The cutting knife 3 includes a knife body 301 and a blade 302, the knife body 301 and the blade 302 are fastened by a fixing bolt 303, the knife body 301 is located in the mounting groove 202 of the sleeve body 201, and is fastened to the sleeve body 201 by a fixing bolt 1 205;

[0037] There are multiple groups of fixing bolts 4, the bottom of which is in contact with the arc groove 204. The fixing bolts 44 are threadedly connected to the auxiliary sleeve 1 and are arranged at intervals.

[0038] Working principle of this embodiment: the auxiliary sleeve 1 is installed at a suitable position on the lathe. Before processing the rectangular thread, the cutter body 301 is inserted into the sleeve body 201 and fastened by the fixing bolt 207. The sleeve body 201 is inserted into the auxiliary sleeve 1. The operator rotates the sleeve body 201 at the required angle and observes it through the scale 208. After the angle adjustment is completed, the fixing bolt 44 is screwed in so that the fixing bolt 44 contacts the sleeve body 201 and has a suitable friction force. Then work is carried out to process the rectangular thread. When the angle needs to be adjusted again, the fixing bolt 44 is turned, and then the angle is adjusted. After completion, it is fastened by the fixing bolt 44.

[0039] The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot 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. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0044] In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter, characterized in that: It comprises an auxiliary sleeve (1), a rotating knife sleeve (2), a cutting knife (3) and four fixing bolts (4); The rotating knife sleeve (2) is arranged in the inner cavity of the auxiliary sleeve (1), and the end portion is located outside the auxiliary sleeve (1); The cutting knife (3) is arranged in the rotating knife sleeve (2) and is fastened to the rotating knife sleeve (2); The fixing bolt four (4) is threadedly connected to the auxiliary sleeve (1) and is in contact with the rotating knife sleeve (2).

2. The adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter according to claim 1, characterized in that: The rotary knife sleeve (2) comprises a sleeve body (201), and the sleeve body (201) is provided with a mounting groove (202); The outer surface of the sleeve (201) is provided with an arc-shaped groove (204), the sleeve (201) is provided with bolt holes (203) located on both sides of the arc-shaped groove (204), and a fixing bolt (205) is provided in the bolt hole (203); The sleeve body (201) is also provided with a contact groove (206) located in a relative position to the arc-shaped groove (204), and the sleeve body (201) is provided with a second fixing bolt (207) on the same side as the arc-shaped groove (204).

3. The adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter according to claim 2, characterized in that: The cutting knife (3) comprises a knife body (301) and a blade (302); The blade body (301) and the blade (302) are fastened by fixing bolt three (303); The blade body (301) is located in the mounting groove (202) of the sleeve body (201) and is fastened to the sleeve body (201) via a fixing bolt (205).

4. The adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter according to claim 2, characterized in that: There are multiple fixing bolts four (4) arranged at equal distances, and the bottom ends of the fixing bolts four (4) extend into the arc-shaped groove (204).

5. The adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter according to claim 2, characterized in that: The surface of the sleeve body (201) on which the arc-shaped groove (204) is formed has the same curvature as the inner cavity of the auxiliary sleeve (1); The surfaces of the sleeve (201) located on both sides of the arc-shaped groove (204) are both planes.

6. The adjustable angle reducer sleeve for machining rectangular threads with a grooving cutter according to claim 2, characterized in that: The sleeve body (201) is a structure formed by combining two cylinders of different sizes, and a scale (208) is also provided on the end surface of the sleeve body (201).

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