Rotary supporting structure and machine tool

Abstract

The utility model discloses a rotary supporting structure, which belongs to the field of machine tools and comprises a sliding seat, a working table, a rotary supporting component and a feeding mechanism, the working table is rotatably mounted on the sliding seat, the rotary supporting component is mounted at the bottom of the working table and comprises a rotary supporting inner ring, a rotary supporting outer ring and a rolling body, and the feeding mechanism is mounted on the rotary supporting inner ring. The rotary supporting inner ring is fixedly connected with the sliding seat, one end of the rotary supporting outer ring is connected with the workbench, the other end of the rotary supporting outer ring is connected with the feeding mechanism, the rotary supporting outer ring is arranged outside the rotary supporting inner ring in a sleeving mode, and the rolling body is located between the rotary supporting inner ring and the rotary supporting outer ring. And the feeding mechanism drives the rotary support outer ring to rotate and drives the workbench to do rotary motion through the rolling body. The structure is compact, the number of parts is small, installation is convenient, and cost is low; all parts are integrated in the compact shell, so that gaps and friction among the parts are reduced, and the rotation precision is improved. The utility model further relates to a machine tool comprising the rotary supporting structure.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a slewing support structure and a machine tool comprising the slewing support structure. Background Art

[0002] The rotary table is a rotatable table on a CNC milling machine, a machine tool accessory used to clamp workpieces and achieve rotation and indexing positioning. By rotating the table during processing, circular surfaces and circular grooves can be processed.

[0003] In the prior art, the workbench realizes rotation and support functions through gear rings, rolling elements, plastic-coated guide rails and adjustment mechanisms. The manufacturing process is costly, the structure is complex, the installation precision requirements are high, and it is difficult. At the same time, a lubrication system is required, which increases the maintenance cost and working environment requirements. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a slewing support structure with compact structure, convenient installation and low cost.

[0005] In order to overcome the deficiencies of the prior art, a second object of the present invention is to provide a machine tool with a compact structure, easy installation and low cost.

[0006] One of the purposes of the utility model is achieved by the following technical solution:

[0007] A slewing support structure comprises a slide seat and a worktable, wherein the worktable is rotatably mounted on the slide seat, and further comprises a slewing support assembly and a feeding mechanism, wherein the slewing support assembly is mounted at the bottom of the worktable, wherein the slewing support assembly comprises a slewing support inner ring, a slewing support outer ring and a rolling body, wherein the slewing support inner ring is fixedly connected to the slide seat, one end of the slewing support outer ring is connected to the worktable and the other end is connected to the feeding mechanism, the slewing support outer ring is sleeved on the outside of the slewing support inner ring, the rolling body is located between the slewing support inner ring and the slewing support outer ring, and the feeding mechanism drives the slewing support outer ring to rotate and drives the worktable to perform slewing motion through the rolling body.

[0008] Furthermore, the slewing support structure also includes a positioning flange, which is installed at the bottom of the slewing support inner ring. The slide seat is provided with a positioning hole, and the workbench is positioned through the positioning flange and the slide seat.

[0009] Furthermore, the feeding mechanism is arranged on the slide seat and is located on one side of the slewing support outer ring.

[0010] Furthermore, the slewing support structure also includes a locking piece, the workbench is provided with a through hole, the slewing support inner ring is provided with a mounting hole, the extension direction of the through hole and the extension direction of the mounting hole are on the same straight line, and the locking piece passes through the through hole, the mounting hole and the threaded hole on the slide seat in sequence to be connected.

[0011] Furthermore, the locking member is a screw, a nut, a bolt or a screw.

[0012] Furthermore, the slewing support structure also includes a fastener, and the slewing support outer ring is detachably connected to the workbench via the fastener.

[0013] The second purpose of the utility model is achieved by the following technical solution:

[0014] A machine tool comprises any one of the above-mentioned slewing support structures.

[0015] Compared with the prior art, the slewing support structure of the utility model includes a slide seat and a workbench. The workbench is rotatably installed on the slide seat, and also includes a slewing support assembly and a feeding mechanism. The slewing support assembly is installed at the bottom of the workbench. The slewing support assembly includes a slewing support inner ring, a slewing support outer ring, and a rolling body. The slewing support inner ring is fixedly connected to the slide seat, one end of the slewing support outer ring is connected to the workbench and the other end is connected to the feeding mechanism. The slewing support outer ring is sleeved on the outside of the slewing support inner ring, and the rolling body is located between the slewing support inner ring and the slewing support outer ring. The feeding mechanism drives the slewing support outer ring to rotate and drives the workbench to perform slewing motion through the rolling body. The present application has a compact structure and few parts. It does not require a large number of adjustment, scraping, pressure regulation and other assembly processes, and is easy to install and low in cost. The present application integrates various components in a compact housing, reduces the gap and friction between parts, improves the rotation accuracy, and has a high degree of structural integration. The present application can provide a sturdy support platform, so that the object can rotate 360 ​​degrees stably and is not prone to shaking or tilting. The present application only requires the injection of grease at a fixed point and timed intervals, and does not require lubrication systems such as oil circuits and pump stations. Lubrication is easy and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the rotary support structure of the utility model.

[0017] In the figure: 10, workbench; 20, slide; 30, slewing support assembly; 31, slewing support inner ring; 32, slewing support outer ring; 33, rolling element; 40, feed mechanism; 50, positioning flange; 60, locking piece; 70, fastener. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] Figure 1 The rotary support structure of the utility model comprises a workbench 10 , a slide seat 20 , a rotary support assembly 30 , a feeding mechanism 40 , a positioning flange 50 and a locking member 60 .

[0022] In this embodiment:

[0023] The workbench 10 is rotatably mounted on the slide 20 . The workbench 10 is provided with a through hole for installing a locking member 60 to fix the slewing support inner ring 31 on the slide 20 .

[0024] The slide seat 20 is provided with a positioning hole for cooperating with the positioning flange 50 on the workbench 10 to achieve positioning.

[0025] The slewing support assembly 30 is installed at the bottom of the workbench 10. The slewing support assembly 30 includes a slewing support inner ring 31, a slewing support outer ring 32, and a rolling body 33. The slewing support inner ring 31 is fixedly connected to the slide 20. The slewing support inner ring 31 is provided with a mounting hole. The extension direction of the through hole on the workbench 10 is in the same straight line as the extension direction of the mounting hole. One end of the slewing support outer ring 32 is connected to the workbench 10 and the other end is connected to the feeding mechanism 40. The slewing support outer ring 32 is sleeved on the outside of the slewing support inner ring 31. In this embodiment, the slewing support outer ring 32 is detachably connected to the workbench 10 through a fastener 70.

[0026] The rolling body 33 is located between the slewing support inner ring 31 and the slewing support outer ring 32. The rolling body 33 rolls between the slewing support inner ring 31 and the slewing support outer ring 32 to realize the slewing motion of the workbench 10. In this embodiment, the slewing support assembly 30 adopts a cross roller bearing structure, which can provide stable rotation and support, reduce the shaking and swinging of equipment or components; can withstand large axial loads, radial loads and overturning moments, and is suitable for scenes that need to support the rotation of heavy objects.

[0027] The feeding mechanism 40 is arranged on the slide 20 and is located on one side of the slewing support outer ring 32. The feeding mechanism 40 drives the slewing support outer ring 32 to rotate and drives the workbench 10 to make a slewing motion through the rolling body 33. Specifically, the feeding mechanism 40 transmits the driving force to the slewing support outer ring 32 through gear transmission, drives the workbench 10 to rotate, and the rolling body 33 reduces the friction between the slewing support inner ring 31 and the slewing support outer ring 32.

[0028] The positioning flange 50 is installed at the bottom of the slewing support inner ring 31 , and the workbench 10 is positioned through the positioning flange 50 and the slide seat 20 .

[0029] The locking member 60 passes through the through hole on the workbench 10, the mounting hole of the slewing support inner ring 31 and the threaded hole on the slide 20 in sequence, thereby locking and fixing the slewing support inner ring 31 and the slide 20, and the length direction of the locking member 60 is perpendicular to the plane where the slide 20 is located. In this embodiment, the locking member 60 is a screw, a nut, a bolt or a screw.

[0030] When the present application is in use, firstly, the slewing support assembly 30 is installed at the bottom of the workbench 10, and the positioning flange 50 is installed at the bottom position of the slewing support inner ring 31; then, the workbench 10 is hoisted above the slide 20, and vertically dropped according to the positioning step. During the vertical drop process, due to the large area of ​​the workbench 10, the assembler must stand outside the workbench 10, and the assembler can achieve positioning by observing the precise match between the positioning flange 50 and the positioning hole on the slide 20; then, the locking member 60 is vertically installed in the mounting hole of the slewing support inner ring 31 and the threaded hole of the slide 20 through the through hole on the workbench 10, so as to achieve the locking and fixation of the slewing support inner ring 31 and the slide 20, and finally, the slewing support outer ring 32 is driven to rotate by the feed mechanism 40, and the workbench 10 is driven to perform slewing motion by the rolling body 33.

[0031] Compared with the prior art, the present application has a compact structure and fewer parts. It does not require a large number of adjustment, scraping, pressure regulation and other assembly processes, and is easy to install and low in cost. The present application integrates various components in a compact housing, reduces the gap and friction between parts, improves the rotation accuracy, and has a high degree of structural integration. The present application can provide a sturdy support platform, so that the object can rotate 360 ​​degrees stably and is not prone to shaking or tilting. The present application only requires the injection of grease at fixed points and at regular intervals, and does not require lubrication systems such as oil circuits and pump stations. Lubrication is easy and convenient.

[0032] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. A rotary support structure, comprising a slide seat and a worktable, wherein the worktable is rotatably mounted on the slide seat, characterized in that: It also includes a slewing support assembly and a feeding mechanism. The slewing support assembly is installed at the bottom of the workbench. The slewing support assembly includes a slewing support inner ring, a slewing support outer ring, and a rolling body. The slewing support inner ring is fixedly connected to the slide seat, one end of the slewing support outer ring is connected to the workbench and the other end is connected to the feeding mechanism. The slewing support outer ring is sleeved on the outside of the slewing support inner ring, the rolling body is located between the slewing support inner ring and the slewing support outer ring, and the feeding mechanism drives the slewing support outer ring to rotate and drives the workbench to perform slewing motion through the rolling body.

2. The slewing support structure according to claim 1, characterized in that: The slewing support structure also includes a positioning flange, which is installed at the bottom of the slewing support inner ring. The slide seat is provided with a positioning hole, and the workbench is positioned through the positioning flange and the slide seat.

3. The slewing support structure according to claim 1, characterized in that: The feeding mechanism is arranged on the slide seat and is located at one side of the slewing support outer ring.

4. The slewing support structure according to claim 1, characterized in that: The slewing support structure also includes a locking piece, the workbench is provided with a through hole, the slewing support inner ring is provided with a mounting hole, the extension direction of the through hole and the extension direction of the mounting hole are on the same straight line, and the locking piece passes through the through hole, the mounting hole and the threaded hole on the slide seat in sequence to be connected.

5. The slewing support structure according to claim 4, characterized in that: The locking piece is a screw, a nut, a bolt or a screw.

6. The slewing support structure according to claim 1, characterized in that: The slewing support structure further comprises a fastener, and the slewing support outer ring is detachably connected to the workbench via the fastener.

7. A machine tool, characterized in that: It comprises a slewing support structure as described in any one of claims 1 to 6.

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