Low cost spindle variable pre-tension mechanism

Abstract

The utility model discloses a low -cost main shaft variable pre -tightening mechanism belongs to lathe technical field, including the main shaft, one end of main shaft is provided with first limit mounting seat, and the inside of first limit mounting seat is provided with the first bearing for playing the limiting effect to main shaft, and the other end of main shaft is provided with pre -tightening subassembly, and pre -tightening subassembly includes second limit mounting seat, and the one end of second limit mounting seat close to first limit mounting seat is provided with the second bearing corresponding with main shaft, and the one end of second limit mounting seat away from first limit mounting seat is connected with the adjusting sleeve corresponding with main shaft with screw thread, and the one end of adjusting sleeve close to first limit mounting seat is fixedly connected with the conical push ring for playing the adjusting effect to second bearing, through the mutual cooperation of multiple mechanical structures, realizes the quick, accurate regulation to pre -tightening force, promotes the use experience of user to pre -tightening mechanism, is worth using and promoting.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool technology, specifically relating to a low-cost variable preload mechanism for a spindle. Background Technology

[0002] Machine tools are machines that manufacture machinery and equipment. They play a vital role in the modernization of the national economy. A lathe is a machine tool that mainly uses a cutting tool to turn rotating workpieces. Drills, reamers, taps, dies, and knurling tools can also be used on a lathe for corresponding machining.

[0003] When using a lathe, a corresponding preload mechanism is used to adjust the preload of the bearings on the spindle. Traditional preload mechanisms work by adjusting the pressure chamber, which is complex in structure and expensive. It is not suitable for small and medium-sized lathes and affects the user's experience with the preload mechanism. It is in urgent need of improvement. Utility Model Content

[0004] The purpose of this invention is to provide a low-cost variable preload mechanism for the spindle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-cost variable preload mechanism for a spindle, comprising a spindle, one end of which is provided with a first limiting mounting seat, the first limiting mounting seat having a first bearing inside for limiting the spindle, the other end of which is provided with a preload assembly, the preload assembly including a second limiting mounting seat, the end of the second limiting mounting seat near the first limiting mounting seat having a second bearing corresponding to the spindle, the end of the second limiting mounting seat away from the first limiting mounting seat being threadedly connected to an adjusting sleeve corresponding to the spindle, and the end of the adjusting sleeve near the first limiting mounting seat being fixedly connected to a tapered push ring for adjusting the second bearing.

[0006] As a further embodiment of this utility model: the interior of the second limiting mounting seat is provided with a number of limiting and reinforcing components for limiting and reinforcing the conical push ring. One end of the conical push ring is fixedly connected to the adjusting sleeve, and the other end of the conical push ring is rotatably connected to the second bearing.

[0007] As a further embodiment of this utility model: the plurality of limiting reinforcement components are arranged in a ring array on the side of the conical push ring, and the limiting reinforcement components are fixedly connected to the conical push ring.

[0008] As a further improvement of this utility model: the end of the adjusting sleeve away from the second bearing is marked with a scale line, and the end of the adjusting sleeve away from the second bearing is provided with a number of limiting transmission plates for transmission.

[0009] As a further improvement of this utility model: the limiting transmission plate is fixedly connected to the adjusting sleeve, and one end of the limiting transmission plate is provided with an information display component for displaying warning information, which is embedded in the warning component.

[0010] As a further improvement of this utility model: a number of warning elements are provided at the other end of the limiting transmission plate, and the warning elements are fixedly connected to the limiting transmission plate.

[0011] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and is easy to use. During use, the preload can be quickly and accurately adjusted through the cooperation of multiple mechanical structures, which improves the user's experience of the preload mechanism and is worth promoting and using. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the pre-tightening component in an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the conical push ring in an embodiment of the present invention;

[0015] In the diagram: 1-First bearing, 2-Main shaft, 3-Preload assembly, 4-First limit mounting seat, 30-Limit transmission plate, 31-Scale line, 32-Adjusting sleeve, 33-Information display component, 34-Warning component, 35-Second limit mounting seat, 36-Second bearing, 37-Conical push ring, 38-Limit reinforcement component. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: Please refer to Figures 1-3This utility model provides a technical solution: a low-cost variable preload mechanism for a spindle, including a spindle 2. One end of the spindle 2 is provided with a first limiting mounting seat 4. The first limiting mounting seat 4 is provided with a first bearing 1 for limiting the spindle 2. The other end of the spindle 2 is provided with a preload assembly 3. The preload assembly 3 includes a second limiting mounting seat 35. The end of the second limiting mounting seat 35 near the first limiting mounting seat 4 is provided with a second bearing 36 corresponding to the spindle 2. The end of the second limiting mounting seat 35 away from the first limiting mounting seat 4 is threadedly connected to an adjusting sleeve 32 corresponding to the spindle 2. The end of the adjusting sleeve 32 near the first limiting mounting seat 4 is fixedly connected to a conical push ring 37 for adjusting the second bearing 36. The outer ring of the second bearing 36 is provided with a limiting groove corresponding to the conical push ring 37.

[0018] Please see Figures 1-3 To make the use of the pre-tightening component 3 more reliable, in this embodiment, preferably, the second limiting mounting base 35 is provided with a plurality of limiting and reinforcing components 38 for limiting and reinforcing the conical push ring 37. One end of the conical push ring 37 is fixedly connected to the adjusting sleeve 32, and the other end of the conical push ring 37 is rotatably connected to the second bearing 36. A plurality of limiting and reinforcing components 38 are arranged in a circular array on the side of the conical push ring 37. The limiting and reinforcing components 38 are fixedly connected to the conical push ring 37. The end of the adjusting sleeve 32 away from the second bearing 36 is marked with a scale line 31. A plurality of limiting transmission plates 30 for transmission are provided at the end of the adjusting sleeve 32 away from the second bearing 36.

[0019] Please see Figures 1-3 To make the use of the pretensioning component 3 more reliable, in this embodiment, preferably, the limiting transmission plate 30 is fixedly connected to the adjusting sleeve 32. One end of the limiting transmission plate 30 is provided with an information display component 33 for displaying warning information. The information display component 33 is an acrylic plate engraved with Chinese characters. The information display component 33 is embedded in the warning component 34. The other end of the limiting transmission plate 30 is provided with a number of warning components 34 for warning purposes. The warning components 34 are reflectors. The warning components 34 are fixedly connected to the limiting transmission plate 30.

[0020] Example 2: Please refer to Figures 1-3This utility model provides a technical solution: a low-cost variable preload mechanism for a spindle, including a spindle 2. One end of the spindle 2 is provided with a first limiting mounting seat 4. The first limiting mounting seat 4 is provided with a first bearing 1 for limiting the spindle 2. The other end of the spindle 2 is provided with a preload assembly 3. The preload assembly 3 includes a second limiting mounting seat 35. The end of the second limiting mounting seat 35 near the first limiting mounting seat 4 is provided with a second bearing 36 corresponding to the spindle 2. The end of the second limiting mounting seat 35 away from the first limiting mounting seat 4 is threadedly connected to an adjusting sleeve 32 corresponding to the spindle 2. The end of the adjusting sleeve 32 near the first limiting mounting seat 4 is fixedly connected to a conical push ring 37 for adjusting the second bearing 36.

[0021] Please see Figures 1-3 To make the use of the pre-tightening component 3 more reliable, in this embodiment, preferably, the second limiting mounting base 35 is provided with a plurality of limiting and reinforcing components 38 for limiting and reinforcing the conical push ring 37. One end of the conical push ring 37 is fixedly connected to the adjusting sleeve 32, and the other end of the conical push ring 37 is rotatably connected to the second bearing 36. A plurality of limiting and reinforcing components 38 are arranged in a circular array on the side of the conical push ring 37. The limiting and reinforcing components 38 are fixedly connected to the conical push ring 37. The end of the adjusting sleeve 32 away from the second bearing 36 is marked with a scale line 31. A plurality of limiting transmission plates 30 for transmission are provided at the end of the adjusting sleeve 32 away from the second bearing 36.

[0022] Please see Figures 1-3 To make the use of the pretensioning component 3 more reliable, in this embodiment, preferably, the limiting transmission plate 30 is fixedly connected to the adjusting sleeve 32. One end of the limiting transmission plate 30 is provided with an information display component 33 for displaying warning information. The information display component 33 is a steel plate stamped with Chinese characters. The information display component 33 is embedded in the warning component 34. The other end of the limiting transmission plate 30 is provided with a number of warning components 34 for warning purposes. The warning components 34 are fluorescent boards. The warning components 34 are fixedly connected to the limiting transmission plate 30.

[0023] The working principle and usage process of this utility model are as follows: During use, the adjusting sleeve 32 is adjusted by rotating the limiting transmission plate 30, so that the adjusting sleeve 32 moves laterally along the second limiting mounting seat 35, thereby causing the conical push ring 37 to move laterally to achieve rapid adjustment of the preload. Thus, through the cooperation of multiple mechanical structures, the preload can be adjusted quickly and accurately, improving the user's experience of the preload mechanism. Furthermore, this utility model has a simple structure, is easy to use, and has low cost. It also has warning and information display functions, making it worthy of promotion and use.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low-cost variable preload mechanism for a spindle, comprising a spindle, characterized in that: One end of the spindle is provided with a first limiting mounting seat, and the first limiting mounting seat is provided with a first bearing for limiting the spindle. The other end of the spindle is provided with a pre-tightening assembly, which includes a second limiting mounting seat. The end of the second limiting mounting seat near the first limiting mounting seat is provided with a second bearing corresponding to the spindle. The end of the second limiting mounting seat away from the first limiting mounting seat is threadedly connected to an adjusting sleeve corresponding to the spindle. The end of the adjusting sleeve near the first limiting mounting seat is fixedly connected to a tapered push ring for adjusting the second bearing.

2. The low-cost variable preload mechanism for the spindle according to claim 1, characterized in that: The second limiting mounting seat has several limiting and reinforcing parts inside, which are used to limit and reinforce the conical push ring. One end of the conical push ring is fixedly connected to the adjusting sleeve, and the other end of the conical push ring is rotatably connected to the second bearing.

3. The low-cost variable preload mechanism for the spindle according to claim 2, characterized in that: The plurality of limiting reinforcement components are arranged in a ring array on the side of the conical push ring, and the limiting reinforcement components are fixedly connected to the conical push ring.

4. The low-cost variable preload mechanism for the spindle according to claim 3, characterized in that: The end of the adjusting sleeve furthest from the second bearing is marked with scale lines, and the end of the adjusting sleeve furthest from the second bearing is provided with several limiting transmission plates for transmission.

5. The low-cost variable preload mechanism for a spindle according to claim 4, characterized in that: The limiting transmission plate is fixedly connected to the adjusting sleeve. One end of the limiting transmission plate is provided with an information display component for displaying warning information, which is embedded in the warning component.

6. The low-cost variable preload mechanism for a spindle according to claim 5, characterized in that: The other end of the limiting transmission plate is provided with several warning elements for warning purposes, and the warning elements are fixedly connected to the limiting transmission plate.

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