Double-cone core shaft of numerical control inclined shaft lathe

Abstract

The utility model discloses a double-cone mandrel of a numerical control inclined shaft lathe, and relates to the technical field of special machine tools or devices. The double-cone core shaft of the numerical control inclined shaft lathe comprises a third cone core shaft part. The fastening assembly is arranged on the third conical core shaft part and comprises a sleeve, a first tightening nut, a threaded part, a second tightening nut, two limiting parts and two limiting grooves, the first tightening nut is welded to the third conical core shaft part, the third conical core shaft part is sleeved with the sleeve, and the diameter of the second hole is larger than that of the threaded part; by arranging a second tightening nut and a first tightening nut in the fastening assembly, after the phenomenon of looseness occurs between a third conical core shaft part and the sleeve, the second tightening nut can be directly rotated to relimit the third conical core shaft part and the sleeve, then the first tightening nut is tightened, and then the loosened sleeve can be fastened again; compared with the mode that an interlayer is filled between the third re-conical core shaft component and the sleeve, re-fastening is easier and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of special machine tools or devices, in particular to a double-taper core shaft of a numerically controlled oblique-axis lathe. Background Art

[0002] A conical core shaft, also known as a tapered core shaft or a tapered core shaft, mainly consists of three parts: a core shaft body, a conical core and a bracket. The existing conical core shaft adopts a layer of anti-slip interlayer between the outer periphery of the shaft body and its shaft sleeve. However, after the conical core shaft has been working for a long time, the sleeve is prone to loosening, resulting in inaccurate transmission between the shaft bodies. When inaccuracy occurs and needs to be re-debugged, it is more troublesome to refill the interlayer. Therefore, there is an urgent need for a double-conical core shaft of a CNC inclined axis lathe to solve the above problem. Utility Model Content

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a double-cone core shaft of a CNC inclined-axis lathe, which can solve the problem that when the conical core shaft becomes inaccurate and needs to be re-debugged, it is troublesome to refill its partitions.

[0004] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a double-taper mandrel for a CNC inclined-axis lathe, comprising a third tapered mandrel component;

[0005] The fastening assembly is arranged on the conical core shaft component three, and the fastening assembly includes a sleeve, a tightening nut one, a threaded part, a tightening nut two, two limit parts and two limit grooves. The tightening nut one is welded to the conical core shaft component three, and the sleeve is sleeved on the conical core shaft component three. The diameter of the hole two is larger than the diameter of the threaded part, the size of the tightening nut two is larger than the diameter of the hole two, and the size of the tightening nut one is larger than the diameter of the hole two.

[0006] Preferably, the inner surface of the tightening nut 2 is threadedly connected to the surface of the threaded member, and the surface of the tightening nut 2 is in contact with the surface of the sleeve.

[0007] Preferably, the inner surface of the tightening nut 1 is threadedly connected to the surface of the threaded member, and the surface of the tightening nut 1 is in contact with the surface of the tightening nut 2.

[0008] Preferably, the outside of the conical core shaft component three is fixedly connected to the conical core shaft component two, a plurality of holes one are opened on the surface of the conical core shaft component two, and the conical core shaft component one is installed on the surface of the conical core shaft component two.

[0009] Preferably, the upper and lower ends of the inner surface of the sleeve are welded with limiting pieces, the upper and lower ends of the cone core shaft component three are provided with limiting grooves, and the two limiting pieces are respectively clamped in the corresponding limiting grooves.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The double-cone mandrel of the CNC oblique-axis lathe is provided with a tightening nut 2 and a tightening nut 1 in the fastening assembly. When looseness occurs between the conical mandrel component 3 and the sleeve, the tightening nut 2 can be directly rotated to re-limit the conical mandrel component 3 and the sleeve. Subsequently, the tightening nut 1 is tightened to complete the re-tightening of the loose sleeve. Compared with filling a spacer between the conical mandrel component 3 and the sleeve, re-tightening is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the interior of the sleeve of the utility model;

[0015] Figure 3 For this utility model Figure 2 A in the middle is an enlarged schematic diagram;

[0016] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0017] Figure numerals: 1. Cone core shaft component 1; 2. Cone core shaft component 2; 3. Hole 1; 4. Cone core shaft component 3; 5. Sleeve; 6. Tightening nut 1; 7. Threaded part; 8. Tightening nut 2; 9. Limiting part; 10. Limiting groove; 11. Hole 2. DETAILED DESCRIPTION

[0018] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0020] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] See also Figures 1-4 , the utility model provides a technical solution: a double-cone mandrel of a CNC oblique-axis lathe, comprising a conical mandrel component three 4;

[0023] The fastening assembly is arranged on the conical core shaft component three 4, and the fastening assembly includes a sleeve 5, a tightening nut one 6, a threaded part 7, a tightening nut two 8, two limit members 9 and two limit grooves 10. The tightening nut one 6 is welded on the conical core shaft component three 4, and the sleeve 5 is sleeved on the conical core shaft component three 4. The diameter of the hole two 11 is larger than the diameter of the threaded part 7, the size of the tightening nut two 8 is larger than the diameter of the hole two 11, and the size of the tightening nut one 6 is larger than the diameter of the hole two 11.

[0024] The inner surface of the tightening nut 2 8 is threadedly connected to the surface of the threaded member 7 , and the surface of the tightening nut 2 8 is in contact with the surface of the sleeve 5 .

[0025] The inner surface of the tightening nut 1 6 is threadedly connected to the surface of the threaded member 7 , and the surface of the tightening nut 1 6 is in contact with the surface of the tightening nut 2 8 .

[0026] The outside of the conical core shaft component 3 4 is fixedly connected to the conical core shaft component 2 2 , a plurality of holes 1 3 are opened on the surface of the conical core shaft component 2 2 , and the surface of the conical core shaft component 2 2 is installed with the conical core shaft component 1 1 .

[0027] Limiting members 9 are welded to the upper and lower ends of the inner surface of the sleeve 5, and limiting grooves 10 are provided at the upper and lower ends of the conical core shaft component 4, and the two limiting members 9 are respectively stuck in the corresponding limiting grooves 10.

[0028] When the double-taper mandrel of the inclined axis lathe needs to be installed;

[0029] First, the sleeve 5 is driven to move by an external force, and the movement of the sleeve 5 drives the two limit members 9 to move. When the two limit members 9 are respectively stuck in the corresponding limit grooves 10, the tightening nut 2 8 is installed on the threaded member 7 by an external force. Then, the sleeve 5 and the tapered core shaft component 3 4 are tightened by an external force. Then, the tightening nut 1 6 is installed on the threaded member 7 by an external force. Then, the positional relationship between the sleeve 5 and the tapered core shaft component 3 4 is reinforced by an external force.

[0030] When the sleeve 5 becomes loose, it is necessary to re-fix the cone core shaft component 3 4 and the sleeve 5;

[0031] First, the tightening nut 2 8 is driven by external force to move and re-tighten the cone core shaft component 3 4 and the sleeve 5. Then, the tightening nut 1 6 is tightened by external force to re-reinforce the positional relationship between the cone core shaft component 3 4 and the sleeve 5.

[0032] By setting the tightening nut 2 8 and the tightening nut 1 6 in the fastening assembly, when looseness occurs between the tapered core shaft component 3 4 and the sleeve 5, the tightening nut 2 8 can be directly rotated to re-limit the tapered core shaft component 3 4 and the sleeve 5, and then, the tightening nut 1 6 can be tightened again to complete the re-tightening of the loosened sleeve 5. Compared with filling a spacer between the tapered core shaft component 3 4 and the sleeve 5, re-tightening is simpler and more convenient.

[0033] By setting two limit members 9 to be respectively clamped inside the corresponding limit grooves 10, the integrity between the conical core shaft component 3 4 and the sleeve 5 can be improved, thereby reducing the burden of the tightening nut 2 8 serving as a transmission connection for a long time, that is, reducing the possibility of the tightening nut 2 8 loosening.

[0034] Working principle:

[0035] When the double-taper mandrel of the inclined axis lathe needs to be installed;

[0036] First, the sleeve 5 is driven to move by an external force, and the sleeve 5 drives the two limit members 9 to move. When the two limit members 9 are respectively stuck in the corresponding limit grooves 10, the tightening nut 2 8 is installed on the threaded member 7 by an external force. Then, the sleeve 5 and the tapered core shaft component 3 4 are tightened by an external force. Then, the tightening nut 1 6 is installed on the threaded member 7 by an external force. Then, the positional relationship between the sleeve 5 and the tapered core shaft component 3 4 is reinforced by an external force.

[0037] When the sleeve 5 becomes loose, it is necessary to re-fix the cone core shaft component 3 4 and the sleeve 5;

[0038] First, the tightening nut 2 8 is driven by external force to move and re-tighten the cone core shaft component 3 4 and the sleeve 5, and the tightening nut 1 6 is tightened by external force to re-reinforce the positional relationship between the cone core shaft component 3 4 and the sleeve 5.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A double-taper mandrel for a CNC inclined-axis lathe, characterized in that: include: Cone core shaft component three (4); The fastening assembly is arranged on the conical core shaft component three (4), and the fastening assembly includes a sleeve (5), a tightening nut one (6), a threaded member (7), a tightening nut two (8), two limit members (9) and two limit grooves (10). The tightening nut one (6) is welded to the conical core shaft component three (4), and the sleeve (5) is sleeved on the conical core shaft component three (4). The diameter of the hole two (11) is larger than the diameter of the threaded member (7), the size of the tightening nut two (8) is larger than the diameter of the hole two (11), and the size of the tightening nut one (6) is larger than the diameter of the hole two (11).

2. The double-taper mandrel of a CNC inclined-axis lathe according to claim 1, characterized in that: The inner surface of the tightening nut 2 (8) is threadedly connected to the surface of the threaded member (7), and the surface of the tightening nut 2 (8) is in contact with the surface of the sleeve (5).

3. The double-taper mandrel of a CNC oblique-axis lathe according to claim 1, characterized in that: The inner surface of the tightening nut 1 (6) is threadedly connected to the surface of the threaded member (7), and the surface of the tightening nut 1 (6) is in contact with the surface of the tightening nut 2 (8).

4. The double-taper mandrel of a CNC inclined-axis lathe according to claim 1, characterized in that: The outside of the conical core shaft component three (4) is fixedly connected to the conical core shaft component two (2), the surface of the conical core shaft component two (2) is provided with a plurality of holes one (3), and the surface of the conical core shaft component two (2) is installed with the conical core shaft component one (1).

5. The double-taper mandrel of a CNC oblique-axis lathe according to claim 1, characterized in that: Limiting members (9) are welded to the upper and lower ends of the inner surface of the sleeve (5), and limiting grooves (10) are provided at the upper and lower ends of the cone core shaft component (4), and the two limiting members (9) are respectively clamped in the corresponding limiting grooves (10).

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