CN114644195A

CN114644195A - Rotary disc structure

Info

Publication number: CN114644195A
Application number: CN202210201250.6A
Authority: CN
Inventors: 赵亚宁; 杨海巍; 安润仓; 苏敬超; 周景吉; 齐亚文
Original assignee: Kocel Machine Tool Accessories Ltd
Current assignee: Kocel Machine Tool Accessories Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-06-21
Anticipated expiration: 2042-03-07
Also published as: CN114644195B

Abstract

The invention relates to a turntable structure. The carousel structure includes: the device comprises a driving unit, a fixed plate, a rotating unit and a step shaft; the fixed plate, the rotating unit and the rotating unit are sequentially sleeved on the step shaft from bottom to top, and the driving unit is fixed below the side of the fixed plate; the driving unit drives the rotating unit to rotate around the step shaft; the carousel structure still includes: the overload protection unit is arranged between the rotating unit and the rotating unit, and the rotating unit drives the rotating unit to rotate around the step shaft through the overload protection unit; the positioning unit is arranged on one side, far away from the driving unit, of the fixed disc and is used for positioning the rotary unit. The overload protection function and the accurate positioning function of the turntable are realized by arranging the overload protection unit and the positioning unit.

Description

Rotary disc structure

The invention relates to a turntable structure, belongs to the technical field of application of industrial rotary cleaning machines, and particularly relates to a cleaning machine turntable structure for cleaning the surface of a workpiece.

Background

In the field of wet machining, chips and cutting fluid inevitably adhere to the surface of a workpiece during machining, and in order to ensure subsequent normal use, the chips and the cutting fluid on the surface of the workpiece need to be removed. The cleaning is usually carried out manually or by a cleaning machine, and the efficiency is low due to manual cleaning; in order to realize the omnibearing cleaning of the surface of the workpiece, the turntable is required to be configured to realize the 360-degree rotation of the workpiece so as to ensure the cleaning effect. Most of the existing turntable structures adopt motors to drive the turntables to rotate through transmission mechanisms, the starting and stopping positions of the turntables are random, the turntables do not have the capability of accurate starting and stopping, the taking and placing postures of workpieces on the turntables are random, the workpieces are not beneficial to operators to take and place the workpieces, and the efficiency is low; meanwhile, the turntable is not designed with an overload protection structure, and the safety performance is low.

Disclosure of Invention

Therefore, it is necessary to provide a turntable structure with a positioning function and an overload protection function for solving the problems that the start and stop positions of the turntable are random and the turntable structure does not have the overload protection function in the prior art.

A carousel structure comprising: the device comprises a driving unit, a fixed plate, a rotating unit and a step shaft; the fixed plate, the rotating unit and the rotating unit are sequentially sleeved on the step shaft from bottom to top, and the driving unit is fixed below the side of the fixed plate; the driving unit drives the rotating unit to rotate around the step shaft; the carousel structure still includes: the overload protection unit is arranged between the rotating unit and the rotating unit, and the rotating unit drives the rotating unit to rotate around the step shaft through the overload protection unit; the positioning unit is arranged on one side, far away from the driving unit, of the fixed disc and is used for positioning the rotary unit.

Further, the rotary unit comprises a rotary sleeve and a disc; the rotary sleeve is sleeved on the step shaft, the disc is fixedly connected to the upper end face of the rotary sleeve, the lower end face of the rotary sleeve is connected with the circular ring through the connecting rod, the circular ring is provided with the positioning hole, and the positioning of the rotary unit is completed through the matching of the positioning unit and the positioning hole.

Further, a bearing is arranged between the rotary sleeve and the step shaft.

Further, the overload protection unit includes at least two friction components; the friction assembly comprises a friction plate, an elastic assembly and an adjustable pressing block; the friction plate is fixed on the rotating unit, one end of the elastic component is in contact with the friction plate, and the other end of the elastic component is in contact with the adjustable compression block; the upper end of the adjustable pressing block penetrates through the rotary sleeve to be connected with the through hole in the disc.

Furthermore, the top end of the adjustable compression block is provided with a straight groove or a cross groove.

Further, the positioning unit comprises a cylinder, a floating joint and a positioning shaft; the cylinder with fixed plate fixed connection, the one end that floats to connect is connected with the expansion end of cylinder, the other end that floats to connect with the locating shaft, the locating shaft passes behind the fixed plate upper end can stretch into the locating hole accomplishes revolving unit's location.

Further, the upper end of the positioning shaft is arranged to be conical.

Further, the rotating unit includes a pinion gear, a bull gear engaged with the pinion gear; the large gear is sleeved on the step shaft; the small gear is connected with the output end of the driving unit and drives the large gear to rotate.

Further, a ball bearing is arranged between the large gear and the step shaft.

Furthermore, an end cover is arranged above the step shaft and fixedly connected with the upper end of the step shaft.

According to the turntable structure, the safety of equipment and personnel is ensured by arranging the overload protection unit, the overload protection unit drives the rotary unit to rotate through the friction assembly, and the friction force can be adjusted by adjusting the friction assembly, so that the overload protection function is realized; the accurate positioning of the turntable structure is realized by arranging the positioning unit, the occasion that the turntable position has specific requirements on feeding and discharging can be met, the manual feeding and discharging are convenient, and the production efficiency is improved.

Drawings

Fig. 1 is a sectional view of an overload protection unit of a turntable structure according to the present invention;

FIG. 2 is a cross-sectional view of a positioning unit of a turntable structure according to the present invention;

FIG. 3 is a schematic view of the friction pack of the present invention;

FIG. 4 is a top view of a disk of the present invention;

the labels in the figure are: 100. the device comprises a driving unit, 200, a fixing plate, 300, a rotating unit, 400, a rotating unit, 500, a step shaft, 600, an overload protection unit, 700, a positioning unit, 301, a pinion, 302, a gearwheel, 401, a rotating sleeve, 402, a disc, 403, a connecting rod, 404, a ring, 501, a bearing, 502, a ball bearing, 503, an end cover, 610, a friction component, 611, a friction plate, 612, an elastic component, 613, an adjustable pressing block, 701, an air cylinder, 702, a floating joint, 703, a positioning shaft, 4021, a through hole, 4041 and a positioning hole.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, a turntable structure includes a driving unit 100, a fixing plate 200, a rotating unit 300, a revolving unit 400, and a step shaft 500, wherein the fixing plate 200, the rotating unit 300, and the revolving unit 400 are sleeved on the step shaft 500 from bottom to top, the driving unit 100 is fixed below the side of the fixing plate 200, and the driving unit 100 drives the rotating unit 300 and the step shaft 500 to rotate; wherein the carousel structure still includes: the overload protection unit 600 is arranged between the rotating unit 300 and the rotating unit 400, the rotating unit 300 drives the rotating unit 400 to rotate around the step shaft 500 through the overload protection unit 600, the positioning unit 700 is arranged on one side of the fixed disc 200 far away from the driving unit 100, and the positioning unit 700 is used for positioning the rotating unit 400.

Referring to fig. 1-2, the rotary plate structure includes a driving unit 100, a fixing plate 200, a rotating unit 300, a revolving unit 400, and a step shaft 500, wherein the fixing plate 200, the rotating unit 300, and the revolving unit 400 are sequentially sleeved on the step shaft 500 from bottom to top, and the fixing plate 200 is fixed on a lower side of a step of the step shaft 500; the rotating unit 300 is rotatably sleeved on the upper side of the step shaft 500, and the revolving unit 400 is rotatably sleeved on the step shaft 500 and positioned above the rotating unit 300; the driving unit 100 is fixed below the side of the fixing plate 200, and the driving unit 100 may drive the rotating unit 300 to rotate about the step shaft 500. The turntable structure further comprises an overload protection unit 600 and a positioning unit 700, the overload protection unit 300 is arranged between the rotating unit 300 and the rotating unit 400, and the rotating unit 300 drives the rotating unit 400 to rotate around the step shaft 500 through the overload protection unit 600; the positioning unit 700 is used to position the swing unit 400. The turntable structure provided by the invention realizes the overload protection function and the positioning function of the turntable through the overload protection unit 600 and the positioning unit 700.

In one embodiment, as shown in fig. 1-2, the rotary unit 400 includes a rotary sleeve 401 and a circular disc 402, the rotary sleeve 401 is rotatably sleeved on the step shaft 500 and is located above the rotary unit 300, the rotary sleeve 401 has a protruding circular table, the circular disc 402 is fixedly connected to an upper end surface of the circular table, a lower end surface of the circular disc of the rotary sleeve 401 is connected to a circular ring 404 through a connecting rod 403, a positioning hole 4041 is provided on the circular ring 404, and the positioning unit 700 can be matched with the positioning hole 4041 to complete the positioning of the rotary unit 400.

The bearing 501 is arranged between the rotary sleeve 401 and the stepped shaft 500, preferably, the bearing 501 is a ball bearing, specifically, paired angular contact ball bearings are matched in the rotary sleeve 401, and inner rings of the paired angular contact ball bearings are matched on steps of the stepped shaft 500, so that the axial limiting of the rotary sleeve 401 is realized. The rotary sleeve 401 rotates around the step shaft 500 through the bearing 501 and drives the disc 402 fixedly connected with the rotary sleeve to rotate, so that the workpiece can be cleaned on the disc 402 in all directions.

In one embodiment, the rotating unit 300 includes a small gear 301 connected to the output end of the driving unit 100, and a large gear 302 engaged with the small gear 301, wherein the large gear 302 is sleeved on the step shaft 500, and preferably, a ball bearing 502 is disposed between the large gear 302 and the step shaft 500. The driving unit 100 drives the pinion 301 to rotate, and the pinion 301 drives the bull gear 302 engaged therewith to rotate around the step shaft 500.

In one embodiment, as shown in fig. 1 and 3, the overload protection unit 600 includes at least two friction members 610. The friction assemblies 610 are symmetrically arranged on the periphery of the rotary sleeve 401. Friction assembly 610 includes friction plate 611, resilient assembly 612, and adjustable compression block 613; the resilient member 612 is preferably a spring. As shown in fig. 3, the friction plate 611 is configured to be rivet-shaped, the pressure-adjustable well block 613 is generally columnar, and a boss is disposed at a position below the middle of the columnar; as shown in fig. 2, the friction plate 611 is fixedly mounted on the rotating unit 300, that is, the lower end surface of the friction plate 611 is fixedly mounted on the upper end surface of the large gear 301, as shown in fig. 3, one end of the elastic component 612 contacts with the friction plate 611, the other end abuts against the lower end surface of the boss of the adjustable compression block 613, the upper end of the adjustable compression block 613 passes through the rotary sleeve 401 and is connected with the through hole 4021 on the disc 402, wherein the top end of the adjustable compression block 613 is provided with a "straight" slot or a "cross" slot, and the upper end of the adjustable compression block 613 is provided with an external thread, the external thread of the external thread is matched with the through hole 4021, and the adjustable compression block 613 can be screwed down or up by a flat screwdriver or a cross screwdriver. When the adjustable pressing block 613 moves downward, the protrusion on the adjustable pressing block 613 compresses the spring, so that the friction force between the friction plate 611 and the rotating unit 300 increases, and the rotating unit 400 rotates around the step shaft 500 along with the rotation of the rotating unit 300, driven by the friction assembly 610. Namely, the overload protection function of the turntable structure is realized by adjusting the friction force of the friction component 610. It should be noted that, in the rotation operation in which the overload protection unit 600 drives the rotation unit 400, the worker selects to tighten the adjustable tightening block of one of the friction assemblies 610, so that the friction assembly 610 drives the rotation unit 400 to rotate, and the other friction assemblies 610 remain unchanged and can be adjusted according to actual needs.

In one embodiment, as shown in fig. 2, the positioning unit 700 includes a cylinder 701, a floating joint 702 and a positioning shaft 702, the cylinder 701 is fixedly connected to the fixing plate, specifically, an L-shaped mounting seat is fixedly connected to the lower right of the fixing plate 200, a side surface of the cylinder 701 is fixedly mounted on the mounting seat, an opening is provided on the right side of the fixing plate 200, a shaft sleeve is sleeved in the opening, and the positioning shaft 701 can move up and down through the shaft sleeve. The movable end of the cylinder 701 is connected with a floating joint 702, the upper end of the floating joint 702 is connected with a positioning shaft 703, the upper end of the positioning shaft 703 can extend into the positioning hole 4041 under the action of the cylinder to complete the positioning of the rotary unit, and preferably, the upper end of the positioning shaft 703 is conical so that the positioning shaft 703 can be smoothly inserted into the positioning hole 4041.

In one embodiment, as shown in fig. 3, an end cover 503 is disposed above the step shaft 500, the end cover 503 is fixedly connected to the upper end of the step shaft by a screw, and the end cover 503 is in clearance fit with the inner ring of the rotary sleeve 401 so as to facilitate the rotation of the rotary sleeve 401 around the step shaft 500, and meanwhile, the end cover 503 is in clearance fit with the disc 402 so as to facilitate the rotation of the disc 402 along with the rotary sleeve 401.

In one embodiment, as shown in FIG. 4, the upper end surface of the disk 402 is provided with a plurality of threaded holes through which a workpiece may be retained.

When the turntable structure is used, firstly, a workpiece is placed on a disc 402, the workpiece is limited by using a threaded hole on the disc 40, the disc 402 is fixedly connected with a rotary sleeve 401, a driving unit 100 drives a pinion 301 to rotate, a ball bearing 502 is installed inside a bull gear 302 and can rotate around a step shaft 500, therefore, the pinion 301 can drive the bull gear 302 meshed with the pinion 301 to rotate around the step shaft 500, the height of an adjustable pressing block 613 relative to the rotary sleeve 401 is adjusted through a screwdriver, further, the length change of an elastic component 612 is controlled, and the friction force is controlled, and a friction component 610 is installed on the upper end surface of the bull gear, therefore, friction torque can be transmitted to the rotary sleeve 401 through the friction component 610, further, the bull gear 302 rotates to drive the rotary sleeve 401 and the disc 402 to rotate, and the overload protection function of the turntable structure is realized through the adjustment of the friction force, when the rotary sleeve 401 rotates, the ring 404 connected with the rotary sleeve rotates along with the rotary sleeve, when the rotary structure needs to stop rotating, the air cylinder 701 is adjusted to enable the floating joint 702 to move upwards, so that the positioning shaft 703 connected with the floating joint 702 also moves upwards, when the top end of the positioning shaft 703 is inserted into the positioning hole 4041 in the ring 404, the ring 404 stops rotating, and therefore the rotary sleeve 401 and the disc 402 stop rotating Odong along with the rotary sleeve, and the positioning function of the rotary structure is achieved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A carousel structure, comprising: a driving unit (100), a fixing plate (200), a rotating unit (300), a revolving unit (400), and a step shaft (500); the fixed plate (200), the rotating unit (300) and the rotating unit (400) are sequentially sleeved on the step shaft (500) from bottom to top, and the driving unit (100) is fixed below the side of the fixed plate (200); the driving unit (100) drives the rotating unit (300) to rotate around the step shaft (500); characterized in that, the carousel structure still includes: the overload protection unit (600) is arranged between the rotating unit (300) and the rotating unit (400), and the rotating unit (300) drives the rotating unit (400) to rotate around the step shaft (500) through the overload protection unit (600); the positioning unit (700) is arranged on one side, far away from the driving unit (100), of the fixed disc (200), and the positioning unit (700) is used for positioning the rotary unit (400).

2. A turntable structure according to claim 1, characterized in that said swivel unit (400) comprises a swivel housing (401) and a disc (402); the rotary sleeve (401) is sleeved on the step shaft (500), the disc (402) is fixedly connected to the upper end face of the rotary sleeve (401), the lower end face of the rotary sleeve (401) is connected with the circular ring (404) through the connecting rod (403), the circular ring (404) is provided with a positioning hole (4041), and the positioning unit (700) is matched with the positioning hole (4041) to complete positioning of the rotary unit (400).

3. A turntable structure according to claim 2, characterized in that a bearing (501) is arranged between the rotary sleeve (401) and the step shaft (500).

4. A turntable structure as claimed in claim 2, characterized in that said overload protection unit (600) comprises at least two friction packs (610); the friction assembly (610) comprises a friction plate (611), an elastic assembly (612) and an adjustable compression block (613); the friction plate (611) is fixed on the rotating unit (300), one end of the elastic component (612) is contacted with the friction plate (611), and the other end is contacted with the adjustable pressing block (613); the upper end of the adjustable pressing block (613) penetrates through the rotary sleeve (401) and is connected with a through hole (4021) in the disc (402).

5. A turntable structure as claimed in claim 4, characterized in that said adjustable pressure block (613) is provided with a "slotted" or "cross" slot at its top end.

6. A turntable structure according to claim 2, characterized in that said positioning unit (700) comprises a cylinder (701), a floating joint (702) and a positioning shaft (703); the air cylinder (701) is fixedly connected with the fixing plate (200), one end of the floating joint (702) is connected with the movable end of the air cylinder (701), the other end of the floating joint (702) is connected with the positioning shaft (703), and the upper end of the positioning shaft (703) penetrates through the fixing plate (200) and can extend into the positioning hole (4041) to complete positioning of the rotary unit (400).

7. A turntable structure as claimed in claim 5, characterized in that the upper end of the positioning shaft (703) is conically arranged.

8. A turntable structure according to claim 1, characterized in that said rotating unit (300) comprises a small gear (301), a large gear (302) engaging with the small gear (301); the large gear (302) is sleeved on the step shaft (500); the small gear (301) is connected with the output end of the driving unit (100), and the small gear (301) drives the large gear (302) to rotate.

9. A turntable structure according to claim 7, characterized in that ball bearings (502) are arranged between the gearwheel (302) and the step shaft (500).

10. A turntable structure as claimed in claim 2, characterized in that an end cap (503) is arranged above the step shaft (500), and the end cap (503) is fixedly connected to the upper end of the step shaft (500).