CN115890274A

CN115890274A - Rotary workbench and five-axis machining center with same

Info

Publication number: CN115890274A
Application number: CN202211581044.9A
Authority: CN
Inventors: 姜春泉; 叶明�; 张青山; 鄢世平; 李佳育
Original assignee: China National Machinery Institute Group Haixi Fujian Branch Co ltd
Current assignee: China National Machinery Institute Group Haixi Fujian Branch Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-04

Abstract

The application discloses swivel work head and have its five-axis machining center. The rotary table includes a table main body, a rotary machining table, and a drive mechanism. The workbench main body is provided with a mounting groove; the rotary processing table is rotatably arranged in the mounting groove, and a chip removal channel is formed between the peripheral side wall of the rotary processing table and the mounting groove in an enclosing manner; the driving mechanism is installed on the workbench main body and is in driving connection with the rotary processing table so as to drive the rotary processing table to rotate. The rotary workbench and the five-axis machining center with the rotary workbench at least can solve the problems that in the prior art, the machining space of the position of the C axis on the five-axis machining center is small, and scraps, waste materials and the like are not convenient to discharge.

Description

Rotary workbench and five-axis machining center with same

Technical Field

The application relates to the technical field of machining tools, in particular to a rotary worktable and a five-axis machining center with the same.

Background

The five-axis machining center is a numerical control machining center which is high in precision and efficiency and specially used for machining complex curved surfaces, and the technical development of the five-axis machining center has a great influence on industries such as aviation, aerospace, metallurgy, ships and the like. The five-axis linkage numerical control machining center is the only means for machining curved surface parts such as impellers, blades, rotors and the like.

The C-axis of the existing five-axis machining center is generally an independent circular truncated cone structure, and the C-axis machining center can only be used as a C-axis rotating workbench, so that the machining space is small, and the discharge of scraps and waste materials is inconvenient.

Disclosure of Invention

The main object of this application is to provide a swivel work head and have its five-axis machining center to at least, solve the machining space of the last C axle position department of five-axis machining center among the prior art little, be not convenient for carry out the discharged problem of piece waste material etc..

According to an aspect of an embodiment of the present application, there is provided a rotary table including:

the workbench comprises a workbench main body, wherein a mounting groove is formed in the workbench main body;

the rotary processing table is rotatably arranged in the mounting groove, and a chip removal channel is formed between the peripheral side wall of the rotary processing table and the mounting groove in an enclosing manner;

the driving mechanism is installed on the workbench main body and is in driving connection with the rotary processing table so as to drive the rotary processing table to rotate.

Further, the side of workstation main part is provided with the chip removal mouth, the chip removal mouth with the chip removal passageway intercommunication sets up.

Further, a plurality of cams are provided on an outer peripheral surface of the rotary machining table, and the drive mechanism includes:

a driving part mounted on the table main body;

the roller shaft is rotatably supported and arranged in the mounting groove, the axial direction of the roller shaft is perpendicular to that of the rotary machining table, a spiral groove used for accommodating the cam is formed in the outer surface of the roller shaft, and one end of the roller shaft is in driving connection with the driving part.

Further, the depth of the spiral groove becomes gradually shallow from the middle to two ends in the axial direction of the roller shaft.

Further, the driving part includes:

a driving motor installed on the table main body;

the first gear is sleeved on an output shaft of the driving motor;

and the second gear is sleeved on the roller shaft and meshed with the first gear.

Further, the rotary processing table is supported and installed in the installation groove through a bearing.

Furthermore, an index plate is arranged on the rotary processing table.

Furthermore, a zero point positioner is embedded on the dividing plate.

Furthermore, an encircling brake ring is sleeved on the rotary processing table.

On the other hand, the application further provides a five-axis machining center which comprises the rotary workbench.

Compared with the prior art, the technical scheme of the application has at least the following technical effects:

because the rotary machining platform in this application is installed in the mounting groove, when adding man-hour to the work piece, waste material, the piece that the work piece produced can fall into the chip removal passageway of rotary machining platform periphery in, through the effect of this chip removal passageway, can discharge waste material, piece etc. in the work piece course of working.

Meanwhile, the rotary machining table is installed on the workbench main body, and compared with the structure that only one independent rotary machining table is arranged in the prior art, the rotary machining table is larger in machining space, not only can be used in a five-axis machining center, but also can be used in a three-axis machining machine tool due to the fact that the table top structure formed by the workbench main body and the rotary machining table is simple in structure and wider in application range.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a front view of a rotary table disclosed in an embodiment of the present application;

FIG. 2 is a side view of a rotary table disclosed in an embodiment of the present application;

FIG. 3 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a front view of a rotary processing table as disclosed in an embodiment of the present application;

fig. 6 is a perspective view of a rotary machining table according to an embodiment of the present application.

Wherein the figures include the following reference numerals:

10. a table main body; 11. installing a groove; 12. a chip removal port; 20. rotating the processing table; 21. a cam; 30. a chip removal channel; 40. a drive mechanism; 41. a drive member; 411. a drive motor; 412. a first gear; 413. a second gear; 42. a roller shaft; 421. a helical groove; 50. a bearing; 60. an index plate; 70. encircling the brake ring.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 to 6, according to an embodiment of the present application, there is provided a rotary table including a table main body 10, a rotary machining table 20, and a driving mechanism 40.

Wherein, the workbench main body 10 is provided with a mounting groove 11; the rotary processing table 20 is rotatably arranged in the mounting groove 11, and a chip removal channel 30 is defined between the peripheral side wall of the rotary processing table 20 and the mounting groove 11; the driving mechanism 40 is mounted on the table main body 10 and is drivingly connected to the rotary machining table 20 to drive the rotary machining table 20 to rotate.

In practical use, the rotary worktable in the embodiment may be installed in a five-axis machining center, specifically, on a Y-axis slide rail of the five-axis machining center. When actually machining a workpiece, the workpiece may be mounted on the rotary machining table 20, and then the rotary machining table 20 may be driven to rotate by the drive mechanism 40, and at this time, a machining tool or the like located above the rotary machining table 20 may machine the workpiece on the rotary machining table 20.

Since the rotary processing table 20 in this embodiment is installed in the mounting groove 11, when a workpiece is processed, waste materials and chips generated by the workpiece can fall into the chip removal channel 30 at the periphery of the rotary processing table 20, and the waste materials and chips and the like generated during the processing of the workpiece can be discharged through the chip removal channel 30.

Meanwhile, in the present embodiment, by installing the rotary machining table 20 on the table main body 10, compared with the structure in which only one independent rotary machining table 20 is provided in the prior art, the machining space of the rotary machining table in the present embodiment is larger, and the rotary machining table can be used not only in a five-axis machining center, but also in a three-axis machining tool, and has a simple structure and a wider application range.

According to the above structure, the rotary worktable of the invention is different from the conventional C-axis turntable technology, and the processing rotary processing table 20 of the invention is embedded in the worktable main body 10, so that the processing space of the workpiece is increased, and the workpiece can realize both three-axis processing and five-axis processing. Alternatively, the upper surface of the table main body 10 in the present embodiment may be a circular surface, a rectangular surface, a square surface, or another irregular surface. In the drawings of the present embodiment, a case where the upper surface of the table main body 10 is a rectangular surface is shown, and in actual machining, the mounting groove 11 is provided on the upper surface of the table main body 10 and recessed from the upper surface of the table main body 10 toward the lower surface of the table main body 10. Rotatory processing platform 20 is installed in the center of mounting groove 11, and after the installation, the upper surface of rotatory processing platform 20 and the upper surface parallel and level of workstation main part 10, so set up, can increase the processing space of rotatory work cover, convenient to use more in the triaxial machine tool.

In order to facilitate discharging of waste materials, chips and the like on the rotary workbench, the side edge of the workbench main body 10 in the embodiment is provided with the chip removal port 12, the chip removal port 12 is communicated with the chip removal channel 30, and in the process of machining a workpiece, the chips, the waste materials and the like generated by the workpiece can be discharged from the chip removal port 12 along the chip removal channel 30 after being piled up to a certain degree in the chip removal channel 30, so that the rotary workbench is simple in structure and convenient to clean.

Alternatively, the number of the exhaust ports 12 in this embodiment may be one, two or more, and when two or more exhaust ports 12 are provided, the two or more exhaust ports 12 may be arranged at intervals in the circumferential direction of the chip removal channel 30.

Further, in order to improve the structural strength of the rotary table in the present embodiment, the table main body 10 may be provided with a structure such as a rib.

Referring again to fig. 1 to 6, the drive mechanism 40 in the present embodiment includes a drive member 41 and a roller shaft 42. Wherein, the driving part 41 is installed on the table main body 10; the roller shaft 42 is rotatably supported and arranged in the mounting groove 11, a plurality of cams 21 are arranged on the outer peripheral surface of the rotary processing table 20, the axial direction of the roller shaft 42 is perpendicular to the axial direction of the rotary processing table 20, a spiral groove 421 for accommodating the cam 21 is arranged on the outer surface of the roller shaft 42, and one end of the roller shaft 42 is in driving connection with the driving part 41.

When the driving part 41 works, the roller shaft 42 can be driven to rotate, and when the roller shaft 42 rotates, the spiral groove 421 on the roller shaft can be driven to rotate, so that the cam 21 can be pushed to move, and finally, the purpose of driving the rotary processing table 20 to rotate is achieved.

Optionally, the depth of the spiral groove 421 in this embodiment gradually becomes shallow from the middle to both ends along the axial direction of the roller shaft 42, so as to be adapted to the motion state of the cam 21, avoid a fit clearance between the cam 21 and the spiral groove 421, effectively avoid the loss of parts, and improve the machining precision of the rotary table while reducing the manufacturing cost of the rotary table.

Further, the driving part 41 in the present embodiment includes a driving motor 411, a first gear 412, and a second gear 413. Wherein, the driving motor 411 is installed on the table main body 10; the first gear 412 is sleeved on the output shaft of the driving motor 411; the second gear 413 is fitted over the roller shaft 42 and meshes with the first gear 412.

When the driving motor 411 works, the first gear 412 can be driven to rotate, and then the second gear 413 and the roller shaft 42 are driven to rotate, and finally the rotary processing table 20 is driven to rotate.

Optionally, the rotary processing table 20 is supported and mounted in the mounting groove 11 through a bearing 50, and the rigidity is high, and the heavy cutting resistance is better. The rotary machining table 20 is provided with an index plate 60 for facilitating programming of the machining of the workpiece.

Further, the zero point positioner is embedded in the index plate 60, so that the device structure can be simplified, and the weight is reduced when the rigidity is ensured.

Further, the rotary processing table 20 is sleeved with a surrounding brake ring 70. The encircling brake ring 70 is arranged on the rotary processing table 20 in a full-circumference oil pressure mode, and meanwhile, the roller shaft 42 is adopted to transmit power, so that the back clearance is small when the roller shaft 42 rotates forwards and backwards, the transmission abrasion is small, and the rotating speed is high. Meanwhile, the brake ring 70 is encircled by the arrangement, so that the rigidity is high during locking, the stability of the machining center is improved, and the machining efficiency is improved.

In the course of working, will process the work piece and install on rotatory processing platform 20, realize the removal of front and back position through Y axle sharp module to the removal that the cooperation processing main shaft realized the space optional position, cooperate B axle yaw again, realize rotation angle's regulation, through this design, can be more quick when the programming confirm the curved surface design on processing the work piece, and accomplish machining center's five-axis linkage processing. The requirement of five-axis machining of the machining center is met, the encircling brake ring 70 is arranged, the rigidity and the stability of the machining center during locking are improved, and the precision and the efficiency of the machining process are improved.

On the other hand, the application also provides a five-axis machining center which comprises the rotary workbench. Therefore, the five-axis machining center includes all technical effects of the rotary table, and since the technical effects of the rotary table have been described in detail in the foregoing, the details are not described herein.

According to the above structure, the technical solution of the present application has at least the following technical effects:

(1) When a workpiece is machined, waste materials and chips generated by the workpiece can fall into the chip removal channel 30 on the periphery of the rotary machining table 20, and the waste materials and the chips and the like in the machining process of the workpiece can be discharged through the chip removal channel 30.

(2) The rotary worktable has the advantages that the machining space is larger, the rotary worktable can be used in a five-axis machining center, the table top structure formed by the worktable main body 10 and the rotary machining table 20 can also be used in a three-axis machining machine tool, the structure is simple, and the application range is wider.

(3) This application encircles brake ring 70 through the setting, and the rigidity is strong when locking, and machining center stability improves, and machining efficiency promotes.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, so that the scope of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary table, comprising:

the workbench comprises a workbench main body (10), wherein the workbench main body (10) is provided with a mounting groove (11);

the rotary machining table (20) is rotatably arranged in the mounting groove (11), and a chip removal channel (30) is formed between the peripheral side wall of the rotary machining table (20) and the mounting groove (11);

a drive mechanism (40), wherein the drive mechanism (40) is installed on the workbench main body (10) and is in drive connection with the rotary processing table (20) so as to drive the rotary processing table (20) to rotate.

2. The rotary table according to claim 1, characterized in that the side of the table body (10) is provided with a chip removal port (12), and the chip removal port (12) is communicated with the chip removal channel (30).

3. The rotary table according to claim 1, wherein a plurality of cams (21) are provided on an outer peripheral surface of the rotary working table (20), and the drive mechanism (40) comprises:

a drive member (41), the drive member (41) being mounted on the table main body (10);

the roller shaft (42) is rotatably supported and arranged in the mounting groove (11), the axial direction of the roller shaft (42) is perpendicular to the axial direction of the rotary machining table (20), a spiral groove (421) used for containing the cam (21) is formed in the outer surface of the roller shaft (42), and one end of the roller shaft (42) is in driving connection with the driving part (41).

4. The rotary table according to claim 3, wherein the depth of the spiral groove (421) becomes gradually shallower from the middle to both ends in the axial direction of the roller shaft (42).

5. A rotary table according to claim 3, wherein the drive member (41) comprises:

a driving motor (411), the driving motor (411) being mounted on the table main body (10);

a first gear (412), wherein the first gear (412) is sleeved on an output shaft of the driving motor (411);

a second gear (413), the second gear (413) being sleeved on the roller shaft (42) and meshed with the first gear (412).

6. A rotary table according to claim 1, wherein the rotary machining table (20) is supported mounted in the mounting recess (11) by means of bearings (50).

7. A rotary table according to any one of claims 1 to 6, wherein an index plate (60) is provided on the rotary processing table (20).

8. Rotary table according to claim 7, characterized in that a zero point locator is embedded on the indexing disc (60).

9. The rotary table according to claim 6, wherein the rotary processing table (20) is provided with a surrounding brake ring (70).

10. A five-axis machining center, characterized in that it comprises a rotary table according to any one of claims 1 to 9.