Small-angle precise rotating mechanism for oversized table board

Abstract

The utility model relates to a small-angle precision rotating mechanism for an oversized table top, which is applied to the field of table top adjustment and comprises a base, a mounting bearing is rotatably connected to the middle of the upper end of the base, a first circular grating is fixedly connected to the upper end of the mounting bearing, and a table top body is fixedly connected to the upper end of the first circular grating. The upper end of the base is fixedly connected with two guide rails, the installation bearing is located between the two guide rails, the surfaces of the guide rails are sleeved with sliding blocks in a sliding mode, the upper ends of the sliding blocks are fixedly connected with the lower end of the table top body, the upper end of the base is further provided with an installation plate, and the installation plate is located in front of the table top body. In the process of adjusting the table top, long-distance linear motion can be converted into angle adjustment, motion decoupling is achieved through a decoupling bearing, the precision of the table top is controlled by installing the bearing and the first circular grating, and therefore the precision of the rotating mechanism is effectively improved, and small-angle precise rotating adjustment can be conveniently conducted on the ultra-large-size table top.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of rotating mechanisms, in particular to a kind of small-angle precision rotating mechanism for super-large size table top applied in table adjusting field. BACKGROUND

[0002] ‌Rotating mechanism is a kind of mechanical device that can convert input rotary motion into output rotary motion or convert into other types of motion. They are widely used in machinery, engineering, automation and other fields, and play an important role in various mechanical equipment and systems, and are used in the process of processing table top.

[0003] Chinese patent CN220783834U specification discloses a large table high load type rotating table, the utility model has the effect of bearing high load to realize the protection of equipment, and the large table high load type rotating table also has the effect of reducing friction during rotating of rotating disc, so that rotating of rotating disc is more convenient.

[0004] But the above-mentioned patent will appear the following problems in the process of using: the above-mentioned patent utilizes the principle that same poles repel each other and different poles attract each other between magnetic poles when using, can make rotating disc suspended, so as to reduce friction during rotating, make rotating disc more easily rotate, when angle adjustment is carried out to super-large size table top, not only the weight of table top is large, difficult to be in suspended state, and in the process of suspended rotating, table top is prone to excessive rotation, and table top is prone to shaking during rotating, inconvenient to control rotating precision of table top, thereby reduce table top rotating effect. UTILITY MODEL CONTENTS

[0005] For the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing rotating table is prone to excessive rotation in the process of suspended rotating, and table top is prone to shaking during rotating, inconvenient to control rotating precision of table top, thereby reduce table top rotating effect.

[0006] In order to solve the above problems, the utility model provides a kind of small angle precision rotating mechanism for super large size mesa, including base, the upper end middle part of base is rotatably connected with mounting bearing, the upper end of mounting bearing is fixedly connected with round grating one, the upper end of round grating one is fixedly connected with mesa body, the upper end of base is fixedly connected with two guide rails, mounting bearing is located between two guide rails, the surface of guide rail is slidably sleeved with sliding block, the upper end of sliding block is fixedly connected with the lower end of mesa body, the upper end of base is also equipped with mounting plate, mounting plate is located in the front of mesa body, the upper end of mounting plate is fixedly connected with servo motor, the output end of servo motor is fixedly connected with lead screw, the outer surface of lead screw is threadedly sleeved with adjusting block, the end of adjusting block away from mounting plate is fixedly connected with decoupling bearing, the upper end of lower decoupling bearing is fixedly connected with the upper end of base, the upper end of upper decoupling bearing is fixedly connected with the lower end of mesa body, the inner bottom wall of base is fixedly connected with positioning assembly.

[0007] In the small angle precision rotating mechanism for super large size mesa, during adjusting mesa, long distance linear motion can be converted into angle adjustment, motion decoupling is realized by decoupling bearing, mounting bearing and round grating one are used for mesa precision control, so that the precision of rotating mechanism is effectively improved, and small angle precision rotating adjustment of super large size mesa is facilitated.

[0008] As a further improvement of the present application, the guide rails are arc-shaped, and the two guide rails are mirror-imaged.

[0009] As another improvement of the present application, the positioning assembly includes an adjusting motor located in the inner bottom wall of the base, the output end of the adjusting motor is fixedly connected with a round grating two, the upper end of the round grating two is fixedly connected with a positioning plate, the upper end of the base is drilled with two arc-shaped grooves, the arc-shaped grooves are slidably connected with baffles, the lower end of the baffle is fixedly connected with the upper end of the positioning plate, the lower end of the mesa body is provided with two guide plates, and a plurality of air cylinders are fixedly connected between the guide plates and the mesa body.

[0010] As a further improvement of the present application, the corresponding ends of the two baffles are in contact with the adjacent guide plates, and the two guide rails are located between the two arc-shaped grooves.

[0011] As a further improvement of the present application, the lower end of the positioning plate is fixedly connected with two support plates, and the lower ends of the two support plates are in contact with the inner bottom wall of the base.

[0012] As a further improvement of the present application, the guide rails, arc-shaped grooves, baffles and guide plates are coaxially arranged, and the arc of the arc-shaped groove is greater than the arc of the guide rail.

[0013] In practical application, the rotation of the servo motor can drive the rotation of the lead screw, thereby driving the longitudinal movement of the adjusting block. At this time, the table body is subjected to a pushing force, and the left end of the table is displaced. The two decoupling bearings can convert linear motion into an angle, so that the adjusting block changes the angle during the process of pushing the table body 4. The installation bearing and the circular grating one can monitor the rotation angle of the table body in real time, which not only makes the rotation of the super-large scale table more convenient, but also effectively controls the rotation angle. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the first embodiment of the application;

[0015] Figure 2 It is a structure top view of the first embodiment of the application;

[0016] Figure 3 It is a structure front view of the first embodiment of the application;

[0017] Figure 4 It is a structure sectional view of the first embodiment of the application;

[0018] Figure 5 It is a structure front view of the second embodiment of the application;

[0019] Figure 6 It is a base structure top view of the second embodiment of the application;

[0020] Figure 7 It is a base structure sectional view of the second embodiment of the application.

[0021] Explanation of reference numerals in the drawings:

[0022] 1 base, 2 installation bearing, 3 circular grating one, 4 table body, 5 guide rail, 6 decoupling bearing, 7 installation plate, 8 servo motor, 9 lead screw, 10 adjusting block, 11 adjusting motor, 12 circular grating two, 13 positioning plate, 14 arc-shaped groove, 15 baffle, 16 guide plate, 17 air cylinder, 18 sliding block. DETAILED DESCRIPTION

[0023] The two embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0024] First embodiment:

[0025] Figure 1 、 Figure 2 and Figure 3The utility model shows: a kind of small angle precision rotating mechanism for super-size table top, including base 1, the upper end middle part of base 1 is rotatably connected with mounting bearing 2, the upper end of mounting bearing 2 is fixedly connected with round grating one 3, and the person skilled in the art can select suitable model round grating one 3 according to actual needs, for example: AKMCR15, mounting bearing 2 facilitates the rotation of table top body 4, and round grating one 3 can monitor the rotation angle of table top body 4 in real time, to effectively improve the precision of table top body 4 when rotating, the upper end of round grating one 3 is fixedly connected with table top body 4, the upper end of base 1 is fixedly connected with two guide rails 5, the guide rail 5 is arc-shaped, and the two guide rails 5 are mirror image distribution, mounting bearing 2 is located between the two guide rails 5, and the surface of guide rail 5 is slidably sleeved with sliding block 18, and guide rail 5 and sliding block 18 can support and limit table top body 4, to effectively improve the stability of table top body 4 when rotating, and the upper end of sliding block 18 is fixedly connected with the lower end of table top body 4.

[0026] Figure 3 And Figure 4 The utility model shows: the upper end of base 1 is also equipped with mounting plate 7, and mounting plate 7 is located in front of table top body 4, and the upper end of mounting plate 7 is fixedly connected with servo motor 8, and the person skilled in the art can select suitable model servo motor 8 according to actual needs, for example: Y2-63M1-2-0.18KW, the output of servo motor 8 is fixedly connected with lead screw 9, the outer surface of lead screw 9 is threadedly sleeved with adjusting block 10, and the end, away from mounting plate 7, of adjusting block 10 is fixedly connected with decoupling bearing 6, the lower decoupling bearing 6 is fixedly connected with the upper end of base 1, and the upper end of upper decoupling bearing 6 is fixedly connected with the lower end of table top body 4, and decoupling bearing 6 can convert linear motion into angle, to realize motion decoupling, and the start of servo motor 8 can drive the rotation of lead screw 9, to drive adjusting block 10 to linearly move, and then exert thrust or tension to table top body 4.

[0027] When using, the rotation of the start servo motor 8 can drive the rotation of the lead screw 9, to drive the longitudinal movement of the adjusting block 10, at this time, table top body 4 is subjected to thrust or tension, to drive the left end of table top body 4 to displace, and the linear motion can be converted into angle by the two decoupling bearings 6, to make adjusting block 10 angularly change in the process of pushing table top body 4, and the rotation angle of table top body 4 can be monitored in real time by mounting bearing 2 and round grating one 3, not only convenient for the rotation of super-size table top more light, but also can effectively control the rotation angle.

[0028] Second embodiment:

[0029] The embodiment is based on the first kind of implementation, and adds positioning assembly, and the rest is consistent with the first kind of implementation.

[0030] Figure 5 、 Figure 6And Figure 7 It is shown that the inner bottom wall of the base 1 is fixedly connected with a positioning assembly, the positioning assembly comprises an adjusting motor 11 located on the inner bottom wall of the base 1, and those skilled in the art can select a suitable model of the adjusting motor 11 according to actual needs, for example, Y2-63M1-2-0.18KW, the output end of the adjusting motor 11 is fixedly connected with a circular grating two 12, and those skilled in the art can select a suitable model of the circular grating two 12 according to actual needs, for example, AKMCR15, the circular grating two 12 can monitor the rotation angle of the positioning plate 13 in real time, so as to adjust the rotation angle of the baffle 15, the upper end of the circular grating two 12 is fixedly connected with the positioning plate 13, the upper end of the base 1 is excavated with two arc grooves 14, the baffle 15 is slidably connected in the arc grooves 14, the lower end of the baffle 15 is fixedly connected with the upper end of the positioning plate 13, the lower end of the table body 4 is provided with two guide plates 16, a plurality of air cylinders 17 are fixedly connected between the guide plates 16 and the table body 4, those skilled in the art can select a suitable model of the air cylinder 17 according to actual needs, for example, SCD50x100-100-LB, the stretching and retracting of the air cylinder 17 can drive the guide plate 16 to move up and down, when the baffle 15 rotates, the air cylinder 17 can be started to retract first, so that the guide plate 16 moves upwards to above the baffle 15, thereby not hindering the rotation of the baffle 15, one end of each of the two baffles 15 corresponds to and is in contact with the adjacent guide plate 16, the rotation of the table body 4 can drive the guide plate 16 to rotate, when the guide plate 16 is in contact with the baffle 15, the baffle 15 hinders the guide plate 16 from continuing to rotate, thereby limiting and fixing the table body 4, the two guide rails 5 are located between the two arc grooves 14, the lower end of the positioning plate 13 is fixedly connected with two supporting plates, the lower end of each of the two supporting plates is in contact with the inner bottom wall of the base 1, and the supporting plate can support the positioning plate 13, thereby effectively improving the stability of the positioning plate 13 during rotation, the guide rail 5, the arc groove 14, the baffle 15 and the guide plate 16 are coaxially arranged, and the arc degree of the arc groove 14 is greater than that of the guide rail 5, so as to facilitate the rotation of the baffle 15.

[0031] Before the table body 4 rotates, the adjusting motor 11 can be started to rotate first to drive the positioning plate 13 to rotate, at this time, the two baffles 15 move along the arc degree of the two arc grooves 14, the circular grating two 12 can monitor the rotation angle of the positioning plate 13 in real time, when the positioning plate 13 rotates to a proper position, the air cylinder 17 is started to extend to drive the guide plate 16 to move downwards, then the servo motor 8 is started to rotate, so that the table body 4 rotates, when the table body 4 rotates to a specified angle, the guide plate 16 is in contact with the adjacent baffle 15, and the baffle 15 hinders the guide plate 16 and the table body 4, thereby effectively avoiding the table body 4 from excessively rotating due to inertia, thereby effectively improving the rotation precision, and effectively reducing the back-and-forth adjustment process and improving the adjustment efficiency.

[0032] The above-mentioned embodiments of the present application are combined with the current actual demand, and the protection scope is not limited thereto, various changes made within the knowledge of those skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A small angle precision rotation mechanism for oversized table, comprising a base (1), characterized in that: The upper end of the base (1) is rotatably connected with a mounting bearing (2), the upper end of the mounting bearing (2) is fixedly connected with a circular grating (3), the upper end of the circular grating (3) is fixedly connected with a table body (4), the upper end of the base (1) is fixedly connected with two guide rails (5), the mounting bearing (2) is located between the two guide rails (5), the surface of the guide rail (5) is slidably sleeved with a sliding block (18), and the upper end of the sliding block (18) is fixedly connected with the lower end of the table body (4). The upper end of the base (1) is also provided with a mounting plate (7), the mounting plate (7) is located in front of the table body (4), the upper end of the mounting plate (7) is fixedly connected with a servo motor (8), the output end of the servo motor (8) is fixedly connected with a lead screw (9), the outer surface of the lead screw (9) is threadedly sleeved with an adjusting block (10), the end away from the mounting plate (7) of the adjusting block (10) is fixedly connected with a decoupling bearing (6), the lower decoupling bearing (6) is fixedly connected with the upper end of the base (1), and the upper decoupling bearing (6) is fixedly connected with the lower end of the table body (4). The inner bottom wall of the base (1) is fixedly connected with a positioning assembly.

2. A small angle precision rotation mechanism for a super-size table top according to claim 1, characterized in that: The guide rail (5) is arc-shaped, and the two guide rails (5) are mirror-symmetrically distributed.

3. A small angle precision rotation mechanism for a super-size table according to claim 1, characterized in that: The positioning assembly comprises an adjusting motor (11) located in the inner bottom wall of the base (1), the output end of the adjusting motor (11) is fixedly connected with a circular grating (12), the upper end of the circular grating (12) is fixedly connected with a positioning plate (13), the upper end of the base (1) is provided with two arc-shaped grooves (14), the arc-shaped grooves (14) are slidably connected with baffles (15), the lower end of the baffle (15) is fixedly connected with the upper end of the positioning plate (13), and the lower end of the table body (4) is provided with two guide plates (16). The guide plates (16) and the table body (4) are fixedly connected with a plurality of air cylinders (17).

4. A small angle precision rotation mechanism for a super-size table top according to claim 3, characterized in that: The ends of the two baffles (15) correspondingly contact the adjacent guide plates (16), and the two guide rails (5) are located between the two arc-shaped grooves (14).

5. A small angle precision rotation mechanism for a super-size table according to claim 3, characterized in that: The lower end of the positioning plate (13) is fixedly connected with two supporting plates, and the lower ends of the two supporting plates contact the inner bottom wall of the base (1).

6. A small angle precision rotation mechanism for a super-size table top according to claim 3, characterized in that: The guide rail (5), the arc-shaped groove (14), the baffle (15) and the guide plate (16) are coaxially arranged, and the curvature of the arc-shaped groove (14) is greater than that of the guide rail (5).

Images