Lengthened carbon fiber coupling with support for machine tools

Abstract

The utility model relates to machine tool coupling technical field, and disclose machine tool is with lengthened type area support carbon fibre coupling, solve the problem that the background art has proposed, it includes coupling, the coupling is by both sides carbon fibre coupling and intermediate support part is composed, the intermediate support part includes intermediate shaft, bearing, dismounting nut, thrust bearing and conical surface expansion sleeve, the bearing is installed on the intermediate shaft, the dismounting nut is installed in the end of intermediate shaft, the thrust bearing is installed on the intermediate shaft, is located between bearing and conical surface expansion sleeve, the conical surface expansion sleeve is sleeved on the intermediate shaft, and cooperates with the inner wall of tailstock, the intermediate support part and tailstock rigid coupling, the carbon fibre coupling and intermediate support part whole can be installed in tailstock, the utility model discloses, have the rigid support of the sectional design and conical surface expansion sleeve, reduce torsional stiffness, reduce diameter, reduce cost, promote the effect of operating stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of machine tool couplings, specifically an extended carbon fiber coupling with support for machine tools. Background Technology

[0002] While existing carbon fiber couplings used in machine tools are relatively mature, with the development of technology, the length of the couplings used is gradually increasing, and the operating speed is also gradually increasing.

[0003] When a coupling is used for an extended period of time and operates at a high speed, in order to ensure the safe use of the coupling and increase its critical speed, it is usually necessary to increase the diameter of the carbon fiber tube. However, the coupling is installed inside the ram, where the space is limited, and the coupling becomes less rigid when it is longer, which will affect its use. Therefore, we have proposed an extended carbon fiber coupling with support for machine tools. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: an extended carbon fiber coupling with support for machine tools, comprising a coupling consisting of carbon fiber couplings on both sides and a middle support portion. The middle support portion includes an intermediate shaft, a bearing, a disassembly nut, a thrust bearing, and a tapered expansion sleeve. The bearing is mounted on the intermediate shaft, the disassembly nut is mounted at the end of the intermediate shaft, the thrust bearing is mounted on the intermediate shaft and located between the bearing and the tapered expansion sleeve, the tapered expansion sleeve is fitted onto the intermediate shaft and mates with the inner wall of the slide, the middle support portion is rigidly connected to the slide, the carbon fiber coupling and the middle support portion can be integrally installed inside the slide, and the tapered expansion sleeve can be expanded externally by tightening the nut and tightly fitted with the slide.

[0005] Preferably, the slide has openings at corresponding positions for tightening and loosening nuts. The openings are located on the side of the slide, and the size of the openings is adapted to the outer diameter of the tightening and loosening nuts to ensure that the nuts can be smoothly installed and removed through the openings.

[0006] Preferably, the inner conical surface of the conical expansion sleeve mates with the outer conical surface of the intermediate shaft, and the outer surface of the conical expansion sleeve forms a tight fit with the inner wall of the slide block, so that the conical expansion sleeve can expand and tighten under the action of external force.

[0007] Preferably, the intermediate shaft is connected to a carbon fiber coupling via a bearing and a thrust bearing, the carbon fiber coupling being rotatable about the intermediate shaft.

[0008] Preferably, the clamping nut is threaded to the end of the intermediate shaft, and tightening the clamping nut causes the conical expansion sleeve to expand outward, forming a tight fit with the inner wall of the slide block.

[0009] Preferably, the disassembly nut is threaded to the end of the intermediate shaft. Loosening the disassembly nut releases the tightness of the tapered expansion sleeve, facilitating the disassembly of the coupling.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] During operation, assemble the intermediate support (bearings, thrust bearing, and tapered expansion sleeve). Connect the two carbon fiber couplings to both ends of the intermediate shaft. Install the entire coupling assembly into the ram. Tighten the clamping nut through the opening on the side of the ram, causing the tapered expansion sleeve to expand outward and form a tight fit with the inner wall of the ram. This completes the installation. When the machine tool is working, power is transmitted to the intermediate shaft through the carbon fiber coupling on one side. The intermediate shaft then transmits power to other parts of the machine tool through the carbon fiber coupling on the other side. In the middle section, the tight fit between the conical expansion sleeve and the slide ensures the rigidity of the coupling and prevents insufficient torsional stiffness due to excessive length. The bearings and thrust bearings reduce radial and axial friction of the intermediate shaft, respectively, ensuring smooth operation of the coupling. Through the opening on the side of the slide, the disassembly nut is loosened. Loosening the disassembly nut releases the tightness of the conical expansion sleeve, allowing the entire coupling assembly to be removed from the slide and disassembly completed. Through the segmented design and the rigid support of the conical expansion sleeve, torsional stiffness is reduced, the diameter is reduced, costs are reduced, and operational stability is improved. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of this utility model;

[0014] In the diagram: 1. Intermediate shaft; 2. Bearing; 3. Removal nut; 4. Thrust bearing; 5. Conical expansion sleeve; 6. Slide ram; 7. Compression nut. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Depend on Figure 1The present invention includes a coupling consisting of carbon fiber couplings on both sides and a middle support part. The middle support part includes an intermediate shaft 1, a bearing 2, a disassembly nut 3, a thrust bearing 4, and a conical expansion sleeve 5. The bearing 2 is mounted on the intermediate shaft 1, the disassembly nut 3 is mounted on the end of the intermediate shaft 1, the thrust bearing 4 is mounted on the intermediate shaft 1 and located between the bearing 2 and the conical expansion sleeve 5, the conical expansion sleeve 5 is fitted onto the intermediate shaft 1 and mates with the inner wall of the slide ram 6, the middle support part is rigidly connected to the slide ram 6, the carbon fiber coupling and the middle support part can be installed as a whole into the slide ram 6, and the conical expansion sleeve 5 can be expanded outward by the clamping nut 7 and tightly fitted with the slide ram 6.

[0017] The slide block 6 has openings at the corresponding positions of the clamping nut 7 and the unloading nut 3. The openings are located on the side of the slide block 6, and the size of the openings is adapted to the outer diameter of the clamping nut 7 and the unloading nut 3 to ensure that the nuts can be installed and removed smoothly through the openings.

[0018] The inner conical surface of the conical expansion sleeve 5 mates with the outer conical surface of the intermediate shaft 1, and the outer surface of the conical expansion sleeve 5 forms a tight fit with the inner wall of the slide block 6, so that the conical expansion sleeve can expand and tighten under the action of external force.

[0019] The intermediate shaft 1 is connected to the carbon fiber coupling via bearing 2 and thrust bearing 4, and the carbon fiber coupling can rotate around the intermediate shaft 1.

[0020] The clamping nut 7 is threaded to the end of the intermediate shaft 1. Tightening the clamping nut 7 causes the conical expansion sleeve 5 to expand outward, forming a tight fit with the inner wall of the slide ram 6.

[0021] The nut 3 is connected to the end of the intermediate shaft 1 by a thread. Loosening the nut 3 releases the tightness of the tapered expansion sleeve 5, making it easier to disassemble the coupling.

[0022] Working principle: During operation, the intermediate support section, including the intermediate shaft 1, bearing 2, thrust bearing 4, and conical expansion sleeve 5, is assembled. Two carbon fiber couplings are connected to both ends of the intermediate shaft 1. The entire coupling assembly, including the carbon fiber couplings and the intermediate support section, is then installed into the slide ram 6. Through the opening on the side of the slide ram 6, the clamping nut 7 is tightened, causing the conical expansion sleeve 5 to expand outwards and form a tight fit with the inner wall of the slide ram 6, completing the installation. When the machine tool is working, power is transmitted to the intermediate shaft 1 through one side of the carbon fiber coupling, and the intermediate shaft 1 transmits power to the machine tool through the other side of the carbon fiber coupling. In the entire operation, the tight fit between the conical expansion sleeve 5 and the slide ram 6 ensures the rigidity of the coupling and prevents insufficient torsional stiffness due to excessive length. The bearing 2 and the thrust bearing 4 reduce the radial and axial friction of the intermediate shaft 1, respectively, ensuring the smooth operation of the coupling. The disassembly nut 3 is loosened through the opening on the side of the slide ram 6. Loosening the disassembly nut 3 releases the tightness of the conical expansion sleeve 5, allowing the entire coupling assembly to be removed from the slide ram 6, completing the disassembly. Through the segmented design and the rigid support of the conical expansion sleeve, the torsional stiffness is reduced, the diameter is reduced, the cost is reduced, and the operational stability is improved.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extended-type carbon fiber coupling with support for machine tools, comprising a coupling, characterized in that: The coupling consists of carbon fiber couplings on both sides and a middle support part. The middle support part includes a middle shaft (1), a bearing (2), a disassembly nut (3), a thrust bearing (4), and a conical expansion sleeve (5). The bearing (2) is installed on the middle shaft (1). The disassembly nut (3) is installed at the end of the middle shaft (1). The thrust bearing (4) is installed on the middle shaft (1) and located between the bearing (2) and the conical expansion sleeve (5). The conical expansion sleeve (5) is fitted on the middle shaft (1) and cooperates with the inner wall of the slide (6). The middle support part is rigidly connected to the slide (6). The carbon fiber coupling and the middle support part can be installed into the slide (6) as a whole. The conical expansion sleeve (5) can be expanded outward by the clamping nut (7) and tightly cooperate with the slide (6).

2. The extended-type carbon fiber coupling for machine tools with support according to claim 1, characterized in that: The slide (6) has openings at corresponding positions of the clamping nut (7) and the unloading nut (3). The openings are located on the side of the slide (6) and the size of the openings is adapted to the outer diameter of the clamping nut (7) and the unloading nut (3).

3. The extended type carbon fiber coupling for machine tools with support according to claim 2, characterized in that: The inner conical surface of the conical expansion sleeve (5) mates with the outer conical surface of the intermediate shaft (1), and the outer surface of the conical expansion sleeve (5) forms a tight fit with the inner wall of the slide block (6).

4. The extended type carbon fiber coupling for machine tools with support according to claim 3, characterized in that: The intermediate shaft (1) is connected to a carbon fiber coupling via a bearing (2) and a thrust bearing (4), and the carbon fiber coupling is rotatable around the intermediate shaft (1).

5. The extended type carbon fiber coupling for machine tools with support according to claim 4, characterized in that: The clamping nut (7) is threaded to the end of the intermediate shaft (1). Tightening the clamping nut (7) causes the conical expansion sleeve (5) to expand outward and form a tight fit with the inner wall of the slide block (6).

6. The extended type carbon fiber coupling for machine tools with support according to claim 5, characterized in that: The disassembly nut (3) is threaded to the end of the intermediate shaft (1), and loosening the disassembly nut (3) releases the tightness of the conical expansion sleeve (5).

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