CN216326495U

CN216326495U - Rotary hollow workbench

Info

Publication number: CN216326495U
Application number: CN202123115207.8U
Authority: CN
Inventors: 刘明
Original assignee: Sanhe Huzhiyi Technology Development Co ltd
Current assignee: Sanhe Huzhiyi Technology Development Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-04-19
Anticipated expiration: 2031-12-10

Abstract

The embodiment of the application relates to a rotary hollow workbench, which comprises an annular lower shell, an annular upper shell detachably fixed on the annular lower shell, an annular track cavity consisting of a first annular groove and a second annular groove which are respectively arranged on the annular lower shell and the annular upper shell, a guide track arranged on the bottom surface of the first annular groove, a connecting ring, a pressing wheel and a driving device, wherein one part of the connecting ring extends into the annular track cavity and is in sliding connection with the guide track, the pressing wheel is arranged on the bottom surface of the second annular groove and abuts against the part, located in the annular track cavity, of the connecting ring, and the driving device is arranged on the annular lower shell or the annular upper shell. The rotary hollow workbench disclosed by the embodiment of the application reduces the manufacturing cost and the processing difficulty of the rotary workbench with a large diameter by a structure simplifying mode.

Description

Rotary hollow workbench

Technical Field

The application relates to the technical field of machinery, in particular to a rotary hollow workbench.

Background

The rotary hollow workbench is a machine tool accessory which is provided with a rotatable table top and used for clamping workpieces and realizing rotation and indexing positioning, and meanwhile, the middle part can be used for matching with machining equipment or parts to be machined. In a use scene with low precision requirement, the existing large-diameter rotary table is not superior in the aspects of manufacturing cost and processing difficulty.

Disclosure of Invention

The embodiment of the application provides a rotary hollow workbench, and the manufacturing cost and the processing difficulty of the rotary workbench with a large diameter are reduced by a structure simplifying mode.

The above object of the embodiments of the present application is achieved by the following technical solutions:

the embodiment of the application provides a rotation cavity workstation, includes:

an annular lower housing;

the annular upper shell is detachably fixed on the annular lower shell;

the annular track cavity comprises a first annular groove and a second annular groove which are respectively arranged on the annular lower shell and the annular upper shell;

a guide rail provided on a bottom surface of the first annular groove;

the connecting ring, a part stretches into the annular orbit cavity and is connected with the guide orbit in a sliding way;

the pinch roller is arranged on the bottom surface of the second annular groove and is abutted against the part of the connecting ring in the annular track cavity; and

and the driving device is arranged on the annular lower shell or the annular upper shell and is configured to drive the connecting ring to rotate.

In one possible implementation manner of the embodiment of the application, the number of the pressing wheels is three or more;

three or more press wheels are uniformly arranged on the bottom surface of the second annular groove around the axis of the second annular groove.

In a possible implementation manner of the embodiment of the present application, the driving device includes a rotating shaft rotatably connected to the annular lower casing or the annular upper casing, and a gear provided on the rotating shaft;

the gear is engaged with the teeth on the connection ring.

In a possible implementation manner of the embodiment of the present application, the driving device includes a rotating shaft rotationally connected to the annular lower casing or the annular upper casing, a gear and a synchronous belt provided on the rotating shaft;

the synchronous belt is wound on the gear and the part of the connecting ring in the annular track cavity.

In one possible implementation of the embodiment of the present application, the width of the guide rail tends to decrease in a direction away from the bottom surface of the first annular groove.

In one possible implementation of the embodiments of the subject application, the working surface of the puck includes a curved surface and at least one tapered surface;

the part of the connecting ring in the annular track cavity is provided with a guide groove matched with the working surface of the pinch roller.

Drawings

Fig. 1 is a schematic structural diagram of a rotary hollow workbench according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of another rotary hollow workbench provided in an embodiment of the present application.

FIG. 3 is a schematic view of the distribution of the pressure wheel on the connecting ring according to the embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 11, an annular lower shell, 12, an annular upper shell, 13, a connecting ring, 14, a driving device, 2, an annular track cavity, 21, a first annular groove, 22, a second annular groove, 23, a guide track, 24, a pressing wheel, 131, a guide groove, 141, a rotating shaft, 142, a gear, 143 and a synchronous belt.

Detailed Description

The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a rotary hollow workbench disclosed in an embodiment of the present application comprises an annular lower shell 11, an annular upper shell 12, a connection ring 13, a driving device 14, an annular track cavity 2, a guide track 23, a pressing wheel 24, and the like, wherein the annular upper shell 12 is detachably fixed on the annular lower shell 11, and the two shells form an annular structure.

The annular track cavity 2 is located between the annular lower shell 11 and the annular upper shell 12, and is composed of a first annular groove 21 formed in the annular lower shell 11 and a second annular groove 22 formed in the annular upper shell 12, for convenience of description, the surfaces of the annular lower shell 11 and the annular upper shell 12, which are in contact with each other, are connected to form a connecting surface, the first annular groove 21 is located on the connecting surface of the annular lower shell 11, and the first annular groove 21 is located on the connecting surface of the annular upper shell 12.

The guide track 23 is fixed on the bottom surface of the first annular groove 21, and a part of the connection ring 13 extends into the annular track cavity 2 and is in sliding connection with the guide track 23, that is, the connection ring 13 can slide on the guide track 23 or rotate around the axis of the connection ring under the driving of external force.

The pressing wheel 24 is disposed on the bottom surface of the second annular groove 22 and abuts against the portion of the connection ring 13 located in the annular rail cavity 2, and functions to apply pressure to the portion of the connection ring 13 located in the annular rail cavity 2, so that the connection ring 13 can always maintain contact with the guide rail 23.

The driving device 14 is arranged on the annular lower shell 11 or the annular upper shell 12 and is used for driving the connecting ring 13 to rotate, in some possible implementation modes, the driving device 14 uses a servo motor and a precision speed reducer, the output end of the servo motor is connected to the input end of the precision speed reducer, a gear or a synchronous belt wheel is installed on the output end of the precision speed reducer, the gear is meshed with an inner gear ring or an outer gear ring on the connecting ring 13, and the synchronous belt wheel is connected to a driven synchronous belt wheel on the connecting ring 13 through a synchronous belt.

In summary, the rotary hollow worktable provided in the embodiment of the present application uses the guide rail 23 to guide the connection ring 13 to rotate, and the guide rail 23 and the connection ring 13 have low manufacturing cost and can bear a large load due to the increase of the area. The connecting rings 13 can extend from the inner side surfaces of the annular lower shell 11 and the annular upper shell 12, and can also extend from the outer side surfaces of the annular lower shell 11 and the annular upper shell 12, so that more use requirements can be met.

Referring to fig. 3, as an embodiment of the rotary hollow table provided by the present application, the number of the pressing rollers 24 is three or more, and the three or more pressing rollers 24 are uniformly arranged on the bottom surface of the second annular groove 22 around the axis of the second annular groove 22.

Referring to fig. 1 and 2, as an embodiment of the rotary hollow worktable provided by the application, two structural forms of the driving device 14 are provided,

first, the driving device 14 is composed of a rotating shaft 141 and a gear 142, the rotating shaft 141 is rotatably connected with the annular lower casing 11 or the annular upper casing 12, and the gear 142 is fixed on the rotating shaft 141 and is positioned in the annular track cavity 2 and is meshed with the teeth on the connecting ring 13.

Secondly, the driving device 14 is composed of a rotating shaft 141, a gear 142 and a timing belt 143, the rotating shaft 141 is rotatably connected to the annular lower casing 11 or the annular upper casing 12, the gear 142 is fixed to the rotating shaft 141 and located in the annular track cavity 2 and engaged with the teeth on the connection ring 13 through the timing belt 143, and the timing belt 143 is wound around the gear 142 and the portion of the connection ring 13 located in the annular track cavity 2.

Referring to fig. 1 and 4, in an embodiment of the rotary hollow table provided as an application, the width of the guide rail 23 tends to decrease in a direction away from the bottom surface of the first annular groove 21, so that the shaking degree of the connection ring 13 on the horizontal plane may be reduced, and the stability of the connection ring 13 during rotation may be improved.

In some possible implementations, the guide rail 23 uses a rail having a triangular cross-sectional shape.

Referring to fig. 1 and 4, as an embodiment of the rotary hollow worktable provided by the present application, the working surface of the pressing wheel 24 includes a curved surface and at least one tapered surface, and the portion of the connection ring 13 located in the circular track cavity 2 is provided with a guide groove 131 matching with the working surface of the pressing wheel 24.

The tapered surface functions as the guide rail 23, and also reduces the degree of shaking of the connection ring 13 in the horizontal plane, thereby improving the stability of the connection ring 13 during rotation.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A rotary hollow work table, comprising:

an annular lower housing (11);

the annular upper shell (12) is detachably fixed on the annular lower shell (11);

the annular track cavity (2) comprises a first annular groove (21) and a second annular groove (22) which are respectively arranged on the annular lower shell (11) and the annular upper shell (12);

a guide rail (23) provided on the bottom surface of the first annular groove (21);

a connecting ring (13), a part of which extends into the annular track cavity (2) and is connected with the guide track (23) in a sliding way;

the pinch roller (24) is arranged on the bottom surface of the second annular groove (22) and is abutted against the part of the connecting ring (13) in the annular track cavity (2); and

and the driving device (14) is arranged on the annular lower shell (11) or the annular upper shell (12) and is configured to drive the connecting ring (13) to rotate.

2. Rotary hollow work table according to claim 1, characterized in that the number of press wheels (24) is three or more;

three or more press wheels (24) are uniformly arranged on the bottom surface of the second annular groove (22) around the axis of the second annular groove (22).

3. Rotary hollow work table according to claim 1 or 2, characterized in that the driving means (14) comprises a rotating shaft (141) rotatably connected to the annular lower shell (11) or the annular upper shell (12) and a gear (142) arranged on the rotating shaft (141);

the gear (142) meshes with teeth on the connection ring (13).

4. Rotary hollow work table according to claim 1 or 2, characterized in that the driving means (14) comprises a rotating shaft (141) rotatably connected to the annular lower shell (11) or the annular upper shell (12), a gear (142) and a timing belt (143) arranged on the rotating shaft (141);

the synchronous belt (143) is wound on the gear (142) and the part of the connecting ring (13) positioned in the annular track cavity (2).

5. Rotary hollow station according to claim 1, characterized in that the width of the guide track (23) tends to decrease in the direction away from the bottom surface of the first annular groove (21).

6. Rotary hollow work table according to claim 1, characterized in that the working surface of the press wheel (24) comprises a curved surface and at least one conical surface;

the part of the connecting ring (13) in the annular track cavity (2) is provided with a guide groove (131) matched with the working surface of the pinch roller (24).