Rotary table
By using composite mechanism and guide rail components on the rotating table and using two fulcrum points to support the carrier plate, the problems of weak load-bearing capacity and poor stability of the existing rotating table are solved, and the stable rotation of the carrier plate and equipment accuracy are guaranteed.
Patent Information
- Application Number
- CN202422243050.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Since the existing rotary table has only one rotating support as a fulcrum, it leads to weak load-bearing capacity and poor rotational stability, which is prone to imbalance when the center of gravity changes, affecting the operating accuracy of the equipment and damaging the structure of the rotary table.
A composite mechanism is adopted, including a base, a screw linear module and a guide rail assembly, which supports both ends of the carrier plate through two fulcrums. The screw linear module is used to drive the sliding table movement, and combine the guide rail assembly and the second rotating support to achieve stable rotation of the carrier plate and avoid direct drive of the motor.
The rotation stability and bearing capacity of the carrier plate are improved, and the stable rotation state of the carrier plate when the center of gravity changes is maintained, vibration is avoided, the equipment operation accuracy is ensured and the rotating table structure is protected.
Smart Images
Figure CN223130662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotating devices, and particularly relates to a rotating table. Background Art
[0002] In the industrial field, a rotating table is a common rotating device and is widely used.
[0003] Currently, the existing rotating table mainly consists of a base, a rotating platform and a motor. The rotating platform is rotatably arranged on the base through a rotating support, and the rotating platform is directly driven by the motor to rotate; such a rotating platform has only one rotating support as a fulcrum, resulting in relatively weak load-bearing capacity and poor rotational stability of the rotating platform. When carrying equipment with a changing center of gravity, the rotating platform is prone to losing balance and generating vibrations, which will not only affect the running accuracy of the carried equipment, but also cause damage to the rotating table itself and its fixing structure. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a rotating table, the carrier plate of which has two fulcrums, which can effectively improve the rotational stability and load-bearing capacity of the carrier plate. Even if the center of gravity of the equipment carried by the carrier plate changes continuously, the carrier plate can maintain a stable rotating state and is not easily unbalanced.
[0005] The utility model provides a rotating table, which includes a carrier plate and a base plate arranged up and down. One end of the carrier plate is rotatably arranged on the base plate through a first rotating support, and the other end of the carrier plate is movably arranged on the base plate through a composite mechanism. The carrier plate is driven by the composite mechanism to rotate around the rotating shaft of the first rotating support;
[0006] Wherein, the composite mechanism includes:
[0007] A base, which is fixedly connected with the base plate;
[0008] A screw linear module, which is installed in the base. The screw linear module has a movable sliding table;
[0009] A connecting seat, which is rotatably arranged on the sliding table through a second rotating support. The carrier plate is movably connected with the connecting seat through a guide rail assembly.
[0010] Specifically, the first rotating support includes:
[0011] A first bearing seat, which is fixedly connected with the base plate;
[0012] The first rotation center axis, the main body of the first rotation center axis is rotatably arranged in the first bearing seat through a plurality of first bearings, and the top end of the first rotation center axis is fixedly connected to the carrier plate.
[0013] Specifically, the base includes a side plate and a bottom plate that are perpendicular to each other. The side plate is fixedly connected to the base plate. The side plate extends in a direction away from the carrier plate. One side of the side plate away from the carrier plate is fixedly connected to the bottom plate. The bottom plate extends in a direction away from the first rotation support. The lead screw linear module is installed on the bottom plate.
[0014] Specifically, the side plate includes a main plate and a sub - plate that are integrally connected. There is a height difference between the top of the main plate and the top of the sub - plate.
[0015] The side of the main plate is connected to the base plate through a first fastener. The top of the sub - plate is connected to the base plate through a second fastener. The first fastener and the second fastener are perpendicular to each other.
[0016] Specifically, the main plate is provided with a first through - hole. The first fastener passes through the first through - hole. The diameter of the first through - hole is larger than the diameter of the rod part of the first fastener.
[0017] A third fastener is arranged in the base plate. The third fastener is parallel to the second fastener. The end of the third fastener abuts against the top of the sub - plate.
[0018] Specifically, the lead screw linear module includes:
[0019] A linear rail seat is fixedly arranged on the base. One end of the linear rail seat is provided with a first lead screw support. The other end of the linear rail seat is provided with a second lead screw support. The linear rail seat has at least one linear slide rail. The at least one linear slide rail is located between the first lead screw support and the second lead screw support.
[0020] A ball screw is rotatably arranged in the first lead screw support and the second lead screw support. At least one linear rail slider is penetrated through the ball screw. The at least one linear rail slider is slidably arranged on the linear slide rail. The slide table is fixedly arranged on the at least one linear rail slider.
[0021] A driving motor is fixedly arranged on one side of the first lead screw support away from the second lead screw support. The output end of the driving motor is connected to the ball screw through a coupling.
[0022] Specifically, at least one sensor is arranged beside the linear guide base, an induction sheet is arranged on the linear guide slider or the sliding table, and the detection window of the sensor is located on the movement path of the induction sheet.
[0023] Specifically, the bottom of the second rotating support is fixedly arranged on the sliding table, and the connecting seat is rotatably arranged on the second rotating support through a plurality of second bearings.
[0024] Specifically, the guide rail assembly includes a linear guide rail and a guide rail slider, and the guide rail slider is slidably arranged on the linear guide rail;
[0025] The linear guide rail is fixedly connected to the carrier plate, and the guide rail slider is fixedly connected to the connecting seat; or the linear guide rail is fixedly connected to the connecting seat, and the guide rail slider is fixedly connected to the carrier plate.
[0026] Specifically, the carrier plate is provided with a large through hole, and the large through hole is located directly above the connecting seat.
[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0028] In the rotating table of the present utility model, the first rotating support and the composite mechanism can respectively serve as the fulcrums at both ends of the carrier plate, which can effectively improve the rotational stability and bearing capacity of the carrier plate. Even if the center of gravity of the equipment carried by the carrier plate changes continuously, the carrier plate can still maintain a stable rotational state and is not easy to lose balance, thus effectively avoiding vibration of the carrier plate, ensuring the operation accuracy of the equipment carried by the carrier plate, and also protecting the rotating table itself and its fixed structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0030] Figure 1 It is a schematic diagram of the overall structure of the rotating table in the embodiment of the present utility model;
[0031] Figure 2 It is an exploded structure schematic diagram of the first rotating support in the embodiment of the present utility model;
[0032] Figure 3 It is a schematic diagram of the structures of the carrier plate, the first rotating support, the base plate and the base in the embodiment of the present utility model;
[0033] Figure 4It is a schematic structural diagram of a substrate and a base in an embodiment of the present utility model;
[0034] Figure 5 It is a schematic structural diagram of the base in an embodiment of the present utility model;
[0035] Figure 6 It is a schematic structural diagram of a lead screw linear module in an embodiment of the present utility model;
[0036] Figure 7 It is an exploded structural diagram of a slide table, a second rotary support, a connecting seat and a guide rail assembly in an embodiment of the present utility model.
[0037] In the attached drawings, 10 is a carrier plate; 11 is a large through hole; 20 is a substrate; 30 is a first rotary support; 31 is a first bearing seat; 32 is a first rotary central shaft; 33 is a first bearing; 40 is a composite mechanism; 100 is a base; 101 is a first fastener; 102 is a second fastener; 103 is a third fastener; 110 is a side plate; 111 is a main plate; 1110 is a first through hole; 112 is a sub-plate; 120 is a bottom plate; 200 is a lead screw linear module; 210 is a slide table; 220 is a linear rail seat; 221 is a first lead screw support; 222 is a second lead screw support; 223 is a linear slide rail; 230 is a ball screw; 231 is a linear rail slider; 240 is a driving motor; 241 is a coupling; 251 is a sensor; 252 is an induction piece; 300 is a connecting seat; 400 is a second rotary support; 410 is a second bearing; 500 is a guide rail assembly; 510 is a linear guide rail; 520 is a guide rail slider. Detailed implementation manners
[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0039] The present utility model provides a rotating table, Figure 1The overall structural schematic diagram of the rotary table in the embodiment of the present utility model is shown. The rotary table includes a carrier plate 10 and a base plate 20 arranged up and down. One end of the carrier plate 10 is rotatably arranged on the base plate 20 through a first rotary support 30, and the other end of the carrier plate 10 is movably arranged on the base plate 20 through a composite mechanism 40. The carrier plate 10 is driven by the composite mechanism 40 to rotate around the rotation axis of the first rotary support 30. Among them, the composite mechanism 40 includes: a base 100, which is fixedly connected to the base plate 20; a lead screw linear module 200, which is installed in the base 100 and has a movable slide table 210; a connecting seat 300, which is rotatably arranged on the slide table 210 through a second rotary support 400, and the carrier plate 10 is movably connected to the connecting seat 300 through a guide rail assembly 500.
[0040] In the rotary table of the present utility model, the first rotary support 30 and the composite mechanism 40 can respectively serve as the fulcrums at both ends of the carrier plate 10, which can effectively improve the rotation stability and bearing capacity of the carrier plate 10. Even if the center of gravity of the equipment carried by the carrier plate 10 changes continuously, the carrier plate 10 can still maintain a stable rotation state, is not easy to lose balance, thereby effectively avoiding vibration of the carrier plate 10, ensuring the operation accuracy of the equipment carried by the carrier plate 10, and also protecting the rotary table itself and its fixed structure.
[0041] Moreover, in the composite mechanism 40, the lead screw linear module 200 drives the linear movement of the slide table 210, and the moving slide table 210 drives the connecting seat 300. Since the connecting seat 300 is rotatably arranged on the slide table 210 through the second rotary support 400 and is movably connected to the carrier plate 10 through the guide rail assembly 500, the carrier plate 10 is driven by the composite mechanism 40 to rotate around the rotation axis of the first rotary support 30; the composite mechanism 40 realizes the driving of the carrier plate 10 through the mutual cooperation of the lead screw linear module 200, the second rotary support 400, the connecting seat 300 and the guide rail assembly 500, avoiding directly driving the carrier plate 10 to rotate by a motor, having a small load on the motor, being easy to overcome the inertial load of the carrier plate 10, and being able to effectively control the rotation accuracy of the carrier plate 10.
[0042] Specifically, the carrier plate 10 and the base plate 20 are parallel to each other to ensure that the carrier plate 10 can rotate smoothly.
[0043] Figure 2The exploded structural schematic diagram of the first rotating support in the embodiment of the present utility model is shown. The first rotating support 30 includes: a first bearing seat 31, and the first bearing seat 31 is fixedly connected to the substrate 20; a first rotating central shaft 32, the main body of the first rotating central shaft 32 is rotatably arranged in the first bearing seat 31 through a plurality of first bearings 33, and the top end of the first rotating central shaft 32 is fixedly connected to the carrier plate 10; the first rotating support 30 has good supporting ability, which can ensure the smooth and stable rotation of the carrier plate 10.
[0044] Specifically, there are 3 first bearings 33, which can effectively improve the working stability of the first rotating central shaft 32 in the first bearing seat 31 and can extend the service life of the first rotating support 30. Preferably, the first bearing 33 is an angular contact ball bearing.
[0045] Figure 3 The structural schematic diagram of the carrier plate, the first rotating support, the substrate and the base in the embodiment of the present utility model is shown. The base 100 includes a side plate 110 and a bottom plate 120 that are perpendicular to each other. The side plate 110 is fixedly connected to the substrate 20. The side plate 110 extends in a direction away from the carrier plate 10. One side of the side plate 110 away from the carrier plate 10 is fixedly connected to the bottom plate 120. The bottom plate 120 extends in a direction away from the first rotating support 30. The lead screw linear module 200 is installed on the bottom plate 120. The base 100 sinks relative to the substrate 20. On the one hand, it can reduce the center of gravity of the entire rotating table, which is beneficial to improving the working stability of the rotating table; on the other hand, it can reduce the distance between the carrier plate 10 and the substrate 20, which is beneficial to reducing the volume of the rotating table, thereby saving the installation space of the rotating table.
[0046] Figure 4 The structural schematic diagram of the substrate and the base in the embodiment of the present utility model is shown. The side plate 110 includes a main plate 111 and a sub-plate 112 that are connected as a whole. There is a height difference between the top of the main plate 111 and the top of the sub-plate 112; the side of the main plate 111 is connected to the substrate 20 through a first fastener 101, and the top of the sub-plate 112 is connected to the substrate 20 through a second fastener 102. The first fastener 101 and the second fastener 102 are perpendicular to each other. The substrate 20 and the side plate 110 are connected in two directions, which can effectively improve the firmness between the base 100 and the substrate 20 and is beneficial to ensuring the working stability of the rotating table.
[0047] Figure 5The structural schematic diagram of the base in the embodiment of the present utility model is shown. A first through hole 1110 is formed in the main plate 111, and the first fastener 101 is inserted into the first through hole 1110. The diameter of the first through hole 1110 is larger than the diameter of the rod portion of the first fastener 101. Please refer to Figure 4 and Figure 5 , a third fastener 103 is provided in the substrate 20. The third fastener 103 and the second fastener 102 are parallel to each other, and the end of the third fastener 103 abuts against the top of the sub-plate 112. The third fastener 103 is based on a threaded fit in the substrate 20 and is used to adjust the parallelism between the substrate 20 and the carrier plate 10. The method for adjusting the parallelism between the substrate 20 and the carrier plate 10 is as follows: first loosen the first fastener 101 and the second fastener 102 to obtain a vertical movement space at the end where the substrate 20 is connected to the base 100; then, turn the third fastener 103 to adjust the substrate 20 to a proper position. After the substrate 20 and the carrier plate 10 are parallel to each other, lock the first fastener 101 and the second fastener 102.
[0048] In some specific embodiments, the first fastener 101, the second fastener 102, and the third fastener 103 are all screws; preferably, the screws are hexagon socket head cap screws.
[0049] Figure 6The structural schematic diagram of the lead screw linear module in the embodiment of the present utility model is shown. The lead screw linear module 200 includes: a linear guide rail base 220, which is fixedly arranged on the base 100. One end of the linear guide rail base 220 is provided with a first lead screw support 221, and the other end of the linear guide rail base 220 is provided with a second lead screw support 222. The linear guide rail base 220 has at least one linear slide rail 223, and the at least one linear slide rail 223 is located between the first lead screw support 221 and the second lead screw support 222; a ball screw 230, which is rotatably arranged in the first lead screw support 221 and the second lead screw support 222; at least one linear guide rail slider 231 is penetrated through the ball screw 230, and the at least one linear guide rail slider 231 is slidably arranged on the linear slide rail 223; the slide table 210 is fixedly arranged on the at least one linear guide rail slider 231; a driving motor 240, which is fixedly arranged on the side of the first lead screw support 221 away from the second lead screw support 222, and the output end of the driving motor 240 is connected to the ball screw 230 through a coupling 241. In the lead screw linear module 200, the driving motor 240 drives the ball screw 230 to rotate, the rotating ball screw 230 drives the linear guide rail slider 231 to slide along the linear slide rail 223, and the sliding linear guide rail slider 231 drives the slide table 210 to move. The operation is stable, which can provide sufficient power for the rotation of the carrier plate 10, and the control accuracy is high.
[0050] Specifically, please refer to Figure 6 , at least one sensor 251 is arranged beside the linear guide rail base 220, an induction piece 252 is arranged on the linear guide rail slider 231 or the slide table 210, and the detection window of the sensor 251 is located on the movement path of the induction piece 252, which is beneficial to improving the operation control accuracy of the slide table 210.
[0051] Preferably, the linear guide rail base 220 has 2 linear slide rails 223, 2 linear guide rail sliders 231 are penetrated through the ball screw 230, and 3 sensors 251 are arranged beside the linear guide rail base 220, which can effectively ensure the operation stability and operation accuracy of the lead screw linear module 200.
[0052] In some specific embodiments, the driving motor 240 is a reduction motor, and the coupling 241 is a plum coupling 241.
[0053] Figure 7The figure shows an exploded structural schematic diagram of a sliding table, a second rotating support, a connecting seat, and a guide rail assembly in an embodiment of the present utility model. The bottom of the second rotating support 400 is fixedly arranged on the sliding table 210, and the connecting seat 300 is rotatably arranged on the second rotating support 400 through a plurality of second bearings 410, so that the connecting seat 300 can stably rotate on the sliding table 210.
[0054] Specifically, there are 2 second bearings 410, which can effectively improve the working stability of the connecting seat 300 on the second rotating support 400.
[0055] In some specific embodiments, please refer to Figure 7 , the guide rail assembly 500 includes a linear guide rail 510 and a guide rail slider 520. The guide rail slider 520 is slidably arranged on the linear guide rail 510, so that the carrier plate 10 and the connecting seat 300 can slide relative to each other. Optionally, the linear guide rail 510 is fixedly connected to the carrier plate 10, and the guide rail slider 520 is fixedly connected to the connecting seat 300; optionally, the linear guide rail 510 is fixedly connected to the connecting seat 300, and the guide rail slider 520 is fixedly connected to the carrier plate 10.
[0056] In some specific embodiments, please refer to Figure 3 , the carrier plate 10 is provided with a large through hole 11. The large through hole 11 is located directly above the connecting seat 300. The large through hole 11 is a reserved maintenance hole, which is convenient for the disassembly and assembly of the connecting seat 300.
[0057] In some specific embodiments, the rotation angle of the carrier plate 10 ≤ 90°, which can meet the requirement of the small-range rotation of the equipment; preferably, the rotation angle range of the carrier plate 10 is -15° to +15°.
[0058] The operating principle of the rotating table of the present utility model is as follows:
[0059] The driving motor 240 drives the ball screw 230 to rotate. The rotating ball screw 230 drives the linear guide rail slider 231 to slide along the linear slide rail 223. The sliding linear guide rail slider 231 drives the sliding table 210 to move. The moving sliding table 210 drives the carrier plate 10 to rotate around the axis of the first rotating support 30 through the mutual cooperation of the second rotating support 400, the connecting seat 300, and the guide rail assembly 500.
[0060] The rotating table of the present utility model uses a composite mechanism 40 to drive the carrier plate 10. That is, through the mutual cooperation of the second rotating support 400, the connecting seat 300, and the guide rail assembly 500, the linear motion of the lead screw linear module 200 is converted into the rotation of the carrier plate 10, avoiding directly driving the carrier plate 10 to rotate with a motor, resulting in a small load on the motor, easily overcoming the inertial load of the carrier plate 10, and effectively controlling the rotation accuracy of the carrier plate 10. Moreover, the composite mechanism 40 is installed on the substrate 20 through the sunken base 100, reducing the distance between the carrier plate 10 and the substrate 20, lowering the center of gravity of the rotating table, being beneficial to improving the working stability of the rotating table and saving the installation space of the rotating table. In addition, the first rotating support 30 and the composite mechanism 40 can respectively serve as the fulcrums at both ends of the carrier plate 10, effectively improving the rotation stability and load-bearing capacity of the carrier plate 10. Even if the center of gravity of the equipment carried by the carrier plate 10 changes continuously, the carrier plate 10 can maintain a stable rotation state, is not prone to imbalance, thus effectively avoiding vibration of the carrier plate 10, ensuring the operation accuracy of the equipment carried by the carrier plate 10, and protecting the rotating table itself and its fixed structure.
[0061] The above has introduced in detail a rotating table provided by an embodiment of the present utility model. In this article, specific examples are used to expound the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. At the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.
Claims
1. A rotating table, characterized in that, The rotating table includes a carrier plate and a base plate arranged vertically. One end of the carrier plate is rotatably arranged on the base plate through a first rotating support, and the other end of the carrier plate is movably arranged on the base plate through a composite mechanism. The carrier plate is driven by the composite mechanism to rotate around the rotation axis of the first rotating support; Wherein, the composite mechanism includes: A base, which is fixedly connected to the base plate; A screw linear module, which is installed in the base. The screw linear module has a movable slide table; A connecting seat, which is rotatably arranged on the slide table through a second rotating support. The carrier plate is movably connected to the connecting seat through a guide rail assembly.
2. The rotary table according to claim 1, characterized in that, The first rotating support includes: A first bearing seat, which is fixedly connected to the base plate; A first rotating central shaft. The main body of the first rotating central shaft is rotatably arranged in the first bearing seat through a plurality of first bearings. The top end of the first rotating central shaft is fixedly connected to the carrier plate.
3. The rotary table according to claim 1, characterized in that, The base includes a side plate and a bottom plate that are perpendicular to each other. The side plate is fixedly connected to the base plate. The side plate extends in a direction away from the carrier plate. One side of the side plate away from the carrier plate is fixedly connected to the bottom plate. The bottom plate extends in a direction away from the first rotating support. The screw linear module is installed on the bottom plate.
4. The rotary table according to claim 3, wherein, The side plate includes a main plate and a sub-plate connected as a whole. There is a height difference between the top of the main plate and the top of the sub-plate; The side of the main plate is connected to the base plate through a first fastener, and the top of the sub-plate is connected to the base plate through a second fastener. The first fastener and the second fastener are perpendicular to each other.
5. The rotary table according to claim 4, wherein, The main plate is provided with a first through hole. The first fastener passes through the first through hole. The diameter of the first through hole is larger than the diameter of the rod part of the first fastener; A third fastener is arranged in the base plate. The third fastener is parallel to the second fastener. The end of the third fastener abuts against the top of the sub-plate.
6. The rotary table according to claim 1, wherein The screw linear module includes: A linear rail seat, which is fixedly arranged on the base. One end of the linear rail seat is provided with a first screw support, and the other end of the linear rail seat is provided with a second screw support. The linear rail seat has at least one linear slide rail, and the at least one linear slide rail is located between the first screw support and the second screw support; A ball screw, which is rotatably arranged in the first screw support and the second screw support; at least one linear rail slider is sleeved on the ball screw, and the at least one linear rail slider is slidably arranged on the linear slide rail; the slide table is fixedly arranged on the at least one linear rail slider; A driving motor, which is fixedly arranged on the side of the first screw support away from the second screw support. The output end of the driving motor is connected to the ball screw through a coupling.
7. The rotary table according to claim 6, characterized in that, At least one sensor is arranged beside the linear rail seat. An induction piece is arranged on the linear rail slider or the slide table. The detection window of the sensor is located on the movement path of the induction piece.
8. The rotary table according to claim 1, characterized in that, The bottom of the second rotary support is fixedly arranged on the sliding table, and the connecting seat is rotatably arranged on the second rotary support through a plurality of second bearings.
9. The rotary table according to claim 1, characterized in that, The guide rail assembly includes a linear guide rail and a guide rail slider, and the guide rail slider is slidably arranged on the linear guide rail; The linear guide rail is fixedly connected to the carrier plate, and the guide rail slider is fixedly connected to the connecting seat; or the linear guide rail is fixedly connected to the connecting seat, and the guide rail slider is fixedly connected to the carrier plate.
10. The rotary table according to claim 1, characterized in that, The carrier plate is provided with a large through hole, and the large through hole is located directly above the connecting seat.