CN218992104U

CN218992104U - Pneumatic main shaft

Info

Publication number: CN218992104U
Application number: CN202222606541.1U
Authority: CN
Inventors: 王宇亭
Original assignee: Baoji Xinyutong Machinery Manufacturing Co ltd
Current assignee: Baoji Xinyutong Machinery Manufacturing Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-05-09
Anticipated expiration: 2032-09-30

Abstract

The utility model provides a pneumatic main shaft, which relates to the technical field of main shafts, and comprises a rear shaft body and a front shaft body, wherein a driving shaft is arranged in the rear shaft body, one end of the driving shaft is provided with a prism body, the front shaft body comprises a mounting sleeve, a butt joint shaft is rotatably arranged in the mounting sleeve, one end, close to the prism body, of the butt joint shaft is provided with a jack matched with the prism body, and an adjusting mechanism for adjusting the position of the mounting sleeve relative to the rear shaft body is arranged between the mounting sleeve and the rear shaft body; the position of the installation sleeve relative to the rear shaft body is adjusted through the adjusting mechanism, and the prismatic body slides in the butt joint shaft, so that the whole length of the main shaft is changed.

Description

Pneumatic main shaft

Technical Field

The utility model relates to the technical field of spindles, in particular to a pneumatic spindle.

Background

The shaft is a part in machining production, can be generally divided into a round shaft and a square shaft, and can also be used for connecting parts of two workpieces, and common shafts comprise a straight shaft, a flexible shaft and a crankshaft.

However, most of the main shafts are simpler in structure, when the main shafts with different lengths are needed in use, the main shafts are required to be disassembled and replaced again, the length adjustment cannot be carried out according to the needs, and the phenomenon of inconvenient use exists.

Disclosure of Invention

The utility model aims to provide a pneumatic main shaft and aims to solve the problem that the length of the main shaft in the prior art is inconvenient to adjust.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the pneumatic main shaft comprises a rear shaft body and a front shaft body, wherein a driving shaft is arranged in the rear shaft body, one end of the driving shaft is provided with a prism body, the front shaft body comprises a mounting sleeve, a butt joint shaft is rotatably arranged in the mounting sleeve, one end, close to the prism body, of the butt joint shaft is provided with a jack matched with the prism body, and an adjusting mechanism for adjusting the position of the mounting sleeve relative to the rear shaft body is arranged between the mounting sleeve and the rear shaft body.

According to a further technical scheme, the adjusting mechanism comprises a threaded sleeve fixedly arranged on the rear shaft body, threads matched with the threaded sleeve are arranged on the installation sleeve, and a locking component for preventing the installation sleeve from rotating automatically is arranged on the threaded sleeve.

According to a further technical scheme, the anti-loosening assembly comprises an inserting strip which is slidably arranged on a threaded sleeve, an elastic piece is arranged between the inserting strip and the threaded sleeve, and a straight groove which can enable the inserting strip to be inserted is formed in the installation sleeve.

According to a further technical scheme of the utility model, the elastic piece is a spring.

According to a further technical scheme, the prismatic body consists of a front cylindrical body and a rear cylindrical body, wherein an inserting rod is arranged on the front cylindrical body, an inserting hole matched with the inserting rod is formed in the rear cylindrical body, and an elastic reset piece is arranged at the other end of the inserting rod.

According to a further technical scheme, the elastic reset piece is a compression spring.

According to a further technical scheme, the mounting sleeve is formed by butt joint of two semicircular plates.

According to a further technical scheme, a circular groove is formed in the mounting sleeve, and a bearing matched with the circular groove is mounted on the mounting sleeve.

The beneficial effects of the utility model are as follows:

when the utility model is used, the position of the installation sleeve relative to the rear shaft body is regulated by the regulating mechanism, and the prismatic body slides in the butt joint shaft, so that the whole length of the main shaft is changed.

Drawings

FIG. 1 is a schematic diagram of the components of an embodiment of the present utility model.

Fig. 2 is a schematic structural view of an embodiment of the present utility model.

Fig. 3 is a cross-sectional view of an embodiment of the present utility model.

In the figure: 1. a rear shaft body; 11. a drive shaft; 12. a prism; 121. a front column; 1211. a rod; 1212. an elastic reset piece; 122. a rear column; 2. a front shaft body; 21. a mounting sleeve; 211. a bearing; 22. a butt joint shaft; 3. an adjusting mechanism; 31. a thread sleeve; 32. an anti-loosening component; 321. cutting; 322. an elastic member; 323. straight grooves.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings.

As shown in fig. 1-3, a pneumatic spindle comprises a rear shaft body 1 and a front shaft body 2, wherein a driving shaft 11 is installed in the rear shaft body 1, one end of the driving shaft 11 is provided with a prismatic body 12, the front shaft body 2 comprises a mounting sleeve 21, a butt joint shaft 22 is rotatably installed in the mounting sleeve 21, one end, close to the prismatic body 12, of the butt joint shaft 22 is provided with a jack matched with the prismatic body 12, an adjusting mechanism 3 for adjusting the position of the mounting sleeve 21 relative to the rear shaft body 1 is installed between the mounting sleeve 21 and the rear shaft body 1, the position of the mounting sleeve 21 relative to the rear shaft body 1 is adjusted through the adjusting mechanism 3, and the prismatic body 12 slides in the butt joint shaft 22, so that the whole length of the spindle is changed.

Specifically, the adjusting mechanism 3 includes a threaded sleeve 31 fixedly installed on the rear shaft body 1, threads matched with the threaded sleeve 31 are provided on the installation sleeve 21, and a locking component 32 for preventing the installation sleeve 21 from rotating automatically is installed on the threaded sleeve 31.

Specifically, the anti-loosening assembly 32 includes an insert 321 slidably mounted on the threaded sleeve 31, an elastic member 322 is mounted between the insert 321 and the threaded sleeve 31, a straight slot 323 is formed in the mounting sleeve 21 to allow the insert 321 to be inserted, and the mounting sleeve 21 is rotatably mounted by pulling out the insert 321, so that the overall length of the spindle is changed.

Preferably, the elastic member 322 is a spring.

Specifically, the prism 12 is composed of a front cylinder 121 and a rear cylinder 122, the front cylinder 121 is provided with a plug rod 1211, the rear cylinder 122 is provided with a jack matched with the plug rod 1211, the other end of the plug rod 1211 is provided with an elastic reset piece 1212, so that the bottom of the front cylinder 121, which is abutted against the jack of the docking shaft 22, is contacted with the top of the jack of the docking shaft 22, and the rear cylinder 122 plays a role in dispersing torque.

Preferably, the resilient return element 1212 is a compression spring.

Further, the installation sleeve 21 is formed by butt joint of two semicircular plates, and a convex strip and a groove are arranged at the butt joint position of the two semicircular plates, so that the installation sleeve is convenient to assemble during production.

Further, a circular groove is provided in the mounting sleeve 21, and a bearing 211 adapted to the circular groove is mounted on the mounting sleeve 21.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a pneumatic main shaft, its characterized in that, including rear axle body (1) and preceding axis body (2), install drive shaft (11) in rear axle body (1), the one end of drive shaft (11) is provided with prism (12), preceding axis body (2) are including installation cover (21), install butt joint axle (22) in installation cover (21) rotation, butt joint axle (22) are close to the one end of prism (12) be provided with the jack with prism (12) looks adaptation, install between installation cover (21) and rear axle body (1) and be used for adjusting adjustment mechanism (3) of installation cover (21) for rear axle body (1) position.

2. A pneumatic spindle according to claim 1, characterized in that the adjusting mechanism (3) comprises a threaded sleeve (31) fixedly mounted on the rear axle body (1), the mounting sleeve (21) is provided with threads adapted to the threaded sleeve (31), and the threaded sleeve (31) is provided with a locking assembly (32) for preventing the mounting sleeve (21) from rotating by itself.

3. The pneumatic spindle according to claim 2, wherein the anti-loosening assembly (32) comprises an insert (321) slidably mounted on the threaded sleeve (31), an elastic member (322) is mounted between the insert (321) and the threaded sleeve (31), and a straight groove (323) allowing the insert (321) to be inserted is formed in the mounting sleeve (21).

4. A pneumatic spindle according to claim 3, characterized in that the elastic element (322) is a spring.

5. The pneumatic spindle of claim 4, wherein the prismatic body (12) is composed of a front cylindrical body (121) and a rear cylindrical body (122), a plug rod (1211) is provided on the front cylindrical body (121), a jack adapted to the plug rod (1211) is provided on the rear cylindrical body (122), and an elastic reset element (1212) is provided at the other end of the plug rod (1211).

6. The pneumatic spindle of claim 5, wherein the resilient return element (1212) is a compression spring.

7. A pneumatic spindle according to any one of claims 1-5, characterized in that the mounting sleeve (21) is formed by two semi-circular plates in butt joint.

8. A pneumatic spindle according to claim 6, characterized in that a circular groove is provided in the mounting sleeve (21), and a bearing (211) adapted to the circular groove is mounted on the mounting sleeve (21).