Rotary table device

Abstract

The rotary table device comprises a conveying unit, a rotary translation unit and a rotary driving unit, the rotary driving unit drives the rotary translation unit to rotate, and the conveying unit is arranged above the rotary translation unit. And the conveying unit can be driven by the rotary translation unit to translate in the horizontal direction and rotate in the horizontal direction along with the rotary translation unit, and the conveying unit conveys the objects, and the conveying unit has the advantages that the conveying unit moves in the horizontal direction through the rotary translation unit, so that the conveying efficiency is improved, and the conveying efficiency is improved. When a conveyor of the rotary table needs to be in butt joint with an external conveying line body, the conveyor is moved towards the external conveying line body, so that the avoiding space between the rotary table and the external conveying line body is made up, and in the rotary table rotating process, the conveyor is horizontally moved to the center of the rotary table, and the conveyor is moved to the center of the rotary table. Interference of the conveyor on the periphery in the rotating process can be greatly reduced.

Description

Technical Field

[0001] The present application is applied to the field of automated transportation, and specifically relates to a turntable device. Background Art

[0002] In the field of automated transportation, a turntable device is often used to complete the turning transportation of the load. In the prior art, the turntable directly fixes the conveyor on the rotating mechanism, and drives the conveyor to rotate through the rotating mechanism to complete the turning transportation of the load on the conveyor. The actual radius of the conveyor on the rotating mechanism when rotating is greater than its length. Therefore, a larger avoidance space is required between the conveyor on the turntable and the externally connected conveyor line to complete the docking, or an auxiliary conveying transition device is added to complete the docking, which occupies a larger space. At the same time, when the avoidance space is large, the load on the conveyor line body will tilt or even fall in the avoidance space, increasing the occurrence rate of failures. Summary of the invention

[0003] In view of the above reasons, the present application discloses a turntable device, including a conveying unit, a rotational translation unit and a rotational drive unit, wherein the rotational drive unit drives the rotational translation unit to rotate, and the conveying unit is arranged above the rotational translation unit. The conveying unit can translate in the horizontal direction under the drive of the rotational translation unit, and as the rotational translation unit rotates in the horizontal direction, the conveying unit transports the load.

[0004] Preferably, the rotational translation unit includes a substrate and a reciprocating translation mechanism, the substrate is connected to the rotational driving unit, the substrate rotates along the axis in the horizontal direction under the drive of the rotational driving unit, the reciprocating translation mechanism is arranged above the substrate, the conveying unit is arranged above the reciprocating translation mechanism, and the reciprocating translation mechanism can drive the conveying unit to reciprocate in the front and rear directions relative to the substrate.

[0005] Preferably, the reciprocating displacement mechanism includes a first motor, a first reducer, a synchronous pulley and a synchronous belt, the synchronous pulleys are respectively arranged at both ends of the upper surface of the substrate, the synchronous belt is sleeved on the synchronous pulleys at both ends, the first motor is sleeved with the first reducer to drive the synchronous pulley to rotate forward or reverse periodically, thereby driving the synchronous belt to perform reciprocating displacement in the horizontal direction, and the conveying unit is fixedly connected to the synchronous belt through a support frame.

[0006] Preferably, the rotation drive unit includes a second motor, a second reducer and a top plate, the second motor is sleeved with the second reducer and fixedly arranged under the top plate, the second reducer passes through a preset hole in the center of the top plate and is fixedly connected to the base plate, and the second reducer can drive the base plate to rotate in the horizontal direction relative to the top plate.

[0007] Preferably, a detection sheet is provided on one side of the base plate, and a detection component is provided above the top plate, and the detection component is used to detect the position of the detection sheet and control the second motor according to the detection signal.

[0008] Preferably, a bull's eye bearing is provided under the base plate, the rotating ball end of the bull's eye bearing is in contact with the upper surface of the top plate, and a sloped boss is provided on the upper surface of the top plate at a position corresponding to the inlet and outlet of the load. When the conveying direction of the conveying unit is at the inlet and outlet position of the load, the bull's eye bearing abuts against the top surface of the sloped boss.

[0009] Preferably, the conveying unit comprises a conveyor and a stopping mechanism, the conveying height of the conveyor is the same as the height of the load entering and exiting, and the stopping mechanism can switch between stopping and releasing states to control the load entering and exiting the conveyor.

[0010] Preferably, the conveying unit further comprises a transition conveying mechanism, and the transition conveying mechanism is arranged at one end of the conveyor close to the load entry and exit position.

[0011] Preferably, the conveying unit also includes a roller bar, the length direction of the roller bar is the conveying direction of the conveyor, a plurality of roller bars are connected to a roller bracket through a connecting rod and are arranged at intervals above the conveyor, the load passes through the spacing space between adjacent roller bars and abuts against adjacent roller bars, and the spacing between adjacent roller bars can be adjusted by adjusting the relative position of the connecting rod and the roller bracket.

[0012] Preferably, a position detection mechanism is provided on the conveyor, and the position detection mechanism is used to detect the position of the load and control the conveyor and the stopping mechanism according to the detection signal.

[0013] The advantage of the present application is that the conveying unit is moved horizontally by rotating and translating the unit. When the conveyor of the turntable needs to be docked with an external conveying line body, the conveyor is moved toward the external conveying line body, thereby making up for the avoidance space between the turntable and the external line body. When the turntable rotates, the conveyor is translated to the center of the turntable, which can greatly reduce the interference of the conveyor with the surrounding during rotation.

[0014] Other specific features and specific advantages of the present application will be described in the subsequent description, or some features and advantages can be inferred or unambiguously determined from the description, or can be learned by implementing the above-mentioned technology of the present disclosure.

[0015] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of this application.

[0018] Figure 2 This is a schematic diagram of a partial structure including a rotation drive unit of the present application.

[0019] Figure 3 This is a schematic diagram of a partial structure including a rotation and translation unit of the present application.

[0020] Figure 4 This is a schematic diagram of a partial structure including a conveying unit of the present application.

[0021] Figure 5 This is a schematic diagram of a partial structure including a conveying unit of the present application.

[0022] In the figure: 1. frame; 2. conveying unit; 3. rotation and translation unit; 4. rotation drive unit; 5. load; 6. top plate; 601. arc avoidance hole; 7. second motor; 8. second reducer; 9. base plate; 10. bull's eye bearing; 11. cable guard plate; 12. ramp boss; 13. detection sheet; 14. detection member; 15. first limit block; 16. second limit block; 17. synchronous pulley; 18. synchronous belt; 19. first motor; 20. first reducer; 21. support frame; 22. guide rail slider assembly; 23. tensioning mechanism; 24. conveyor; 25. gantry; 26. roller strip; 27. connecting rod; 28. rocker arm; 29. ​​swing cylinder; 30. transition roller; 31. first counter-shooting sensor; 32. second counter-shooting sensor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 The turntable device shown in the figure has a frame 1 which is a rectangular parallelepiped frame formed by aluminum profiles. The conveying unit 2, the rotation and translation unit 3 and the rotation drive unit 4 are arranged in the frame 1 from top to bottom. The rotation drive unit 4 drives the rotation and translation unit 3 to rotate horizontally along its axis. The rotation and translation unit 3 drives the upper conveying unit 2 to translate horizontally. As the rotation and translation unit 3 rotates horizontally, the conveying unit 2 conveys the load 5. The turntable is externally connected to two conveying lines that are horizontally connected at 90 degrees. The turntable is located at the connection between the two conveying lines and completes the 90-degree turn and transportation of the load 5 on the two conveying lines. The specific structure and implementation functions are as follows.

[0025] like Figures 1 to 5 As shown, a horizontal top plate 6 is fixedly provided in the middle section of the frame 1. The top plate 6 is a square plate body matching the frame 1. The second motor 7 is installed under the top plate 6 through a mounting piece. The motor end of the second motor 7 is sleeved with a second reducer 8. The second reducer 8 passes through a reserved hole in the center of the top plate 6 and is fixedly connected to the lower surface of the base plate 9. The base plate 9 is a horizontal plate body. The projection area of ​​the base plate 9 is smaller than the projection area of ​​the top plate 6. A bull's eye bearing 10 is provided under the base plate 9. The bull's eye bearing 10 contacts the upper surface of the top plate 6. When the second reducer 8 drives the base plate 9 to rotate relative to the top plate 6, the rotating ball end of the bull's eye bearing 10 contacts the upper surface of the top plate 6, which plays a role in reducing friction. A cable guard plate 11 is provided under the base plate 9 for protecting the passing cables. An arc-shaped avoidance hole 601 is provided at the corresponding position of the top plate 6. The cable guard plate 11 can pass through the arc-shaped avoidance hole 601, so that during the rotation of the base plate 9 relative to the top plate 6, the cable guard plate 11 does not contact the top plate 6.

[0026] The frame 1 is provided with an external conveyor line body that makes a 90-degree turn and docks. The position of the external conveyor line body is the position where the load 5 enters and moves out of the turntable. The top plate 6 is provided with a sloped boss 12 at the corresponding position where the load 5 enters and moves out of the turntable. During the rotation of the base plate 9 relative to the top plate 6, the bull's eye bearing 10 will contact the sloped boss 12. Since the sloped boss 12 has a protrusion upward relative to the ground, when the base plate 9 rotates to the position where the load enters and exits the turntable, the bull's eye bearing 10 passes through the inclined surface of the sloped boss 12 and stays on the raised boss. At this time, the rotating ball end of the bull's eye bearing 10 retracts in the direction away from the top plate 6, and the bull's eye bearing 10 further supports the upper device, thereby improving the structural strength.

[0027] Detection pieces 13 are provided at two diagonal positions of the substrate 9, and detection pieces 14 are provided at two adjacent diagonal positions on the upper surface of the top plate 6. When the substrate 9 rotates relative to the top plate 6, the detection piece 13 will pass through the position of the detection piece 14 and be detected by the detection piece 14, thereby generating a detection signal. The second motor 7 is controlled according to the detection signal, and the second motor 7 drives the substrate 9 to rotate 90 degrees. A first limit block 15 is provided below the substrate 9, and two second limit blocks 16 are provided at corresponding positions on the upper surface of the top plate 6. The two second limit blocks 16 limit the moving range of the first limit block 15 to the angle formed by the two second limit blocks 16 and the center of the top plate 6. Since the turntable in this embodiment realizes a 90-degree turn, the angle formed by the two second limit blocks 16 and the center of the top plate 6 is preferably 100 degrees. It should be noted that the control of the rotation angle is not determined by the limit angle between the first limit block 15 and the two second limit blocks 16, but is determined by the control signal generated by the above-mentioned detection member 14 to control the driving state of the second motor 7. When the turntable is in normal working condition, there will be no contact between the first limit block 15 and the second limit block 16. When the second motor 7 is out of control, contact will be generated between the first limit block 15 and the second limit block 16, thereby preventing the occurrence of overtravel and overposition.

[0028] A synchronous pulley 17 is provided above the base plate 9. Two synchronous pulleys 17 are respectively arranged on both sides of the upper surface of the base plate 9. A synchronous belt 18 is sleeved between the two synchronous pulleys 17. A first motor 19 is fixedly arranged above the base plate 9 and sleeved with a first reducer 20 to drive the synchronous pulley 17 at one end. The specific driving method is to make the synchronous pulley 17 rotate in a positive and reverse cycle, thereby driving the synchronous belt 18 to move back and forth between the synchronous pulleys 17 on both sides. The lower end of the support frame 21 is fixedly connected to one end of the synchronous belt 18. A guide rail slider assembly 22 is provided at the bottom of the support frame 21. The guide rail slider assembly 22 is connected to the base plate 9. When the support frame 21 moves back and forth under the drive of the synchronous belt 18, the guide rail slider assembly 22 plays an auxiliary guiding role. In some embodiments, a tensioning mechanism 23 may be provided on the synchronous pulley 17 at one end, which may be specifically a bolt to adjust the spacing between the synchronous pulleys 17 on both sides, thereby playing a tensioning role on the synchronous belt 18.

[0029] The upper end of the support frame 21 is fixedly connected to the lower end of the conveyor 24. The conveyor 24 can be a conventional conveying device such as a belt conveyor, a sheet-based belt conveyor or a roller conveyor. In the figure of this embodiment, a belt conveyor is taken as an example. The conveying direction of the conveyor 24 is the same as the direction of the reciprocating movement of the synchronous belt 18. The height of the conveying plane of the conveyor 24 is the same as the conveying height of the external conveying line body. A gantry 25 is provided on the conveyor 24. A roller bar 26 is connected to the gantry 25 through a connecting rod 27. The length direction of the roller bar 26 is the same as the conveying direction of the conveyor 24. The roller bars 26 are arranged at intervals along the width direction of the conveyor 24. The gap space formed between adjacent roller bars 26 is used to pass the load 5. The roller bars 26 on both sides of the load 5 abut against the load 5, which plays a role in limiting the load 5 and assisting the movement. The spacing between adjacent roller bars 26 can be adjusted by adjusting the connection position of the connecting rod 27 and the gantry 25, and can be adaptively adjusted and increased or decreased according to the actual width of the load 5.

[0030] A rocker arm 28 is provided at the load inlet and outlet of the conveyor 24, and a swing cylinder 29 is arranged on one side of the conveyor 24. The rocker arm 28 is driven by the swing cylinder 29 and can rotate on a plane perpendicular to the ground. The rocker arm 28 plays the role of stopping and releasing the load 5. When it is necessary to stop the load 5, the swing cylinder 29 controls the rocker arm 28 to be in a horizontal position. The height of the rocker arm 28 is higher than the conveying plane and lower than the height of the load 5. The load 5 cannot enter the conveyor 24 from the external conveying line body, or the load 5 on the conveyor 24 cannot move out of the conveyor 24. When it is necessary to release the load 5, the swing cylinder 29 controls the rocker arm 28 to be in a vertical position. The rocker arm 28 avoids the moving route of the load 5 on the conveyor 24, thereby not blocking the load 5 from entering the conveyor 24 or moving out of the conveyor 24. It should be noted that if the turntable is connected to two external conveying lines to transfer the load 90 degrees for transportation, the load inlet and outlet positions of the conveyor 24 can be the same end of the conveyor 24. If the turntable is connected to three or four external conveying lines to transfer the load 5 90 degrees or 270 degrees for transportation, the load inlet and outlet positions of the conveyor 24 can be respectively at the two ends of the conveyor 24. Therefore, the front and rear ends of the conveyor 24 in the conveying direction can be provided with a rocker arm 28 and a swing cylinder 29. The purpose is to adapt to a variety of conveying environments. Under the working condition that two external conveying lines transfer the load 90 degrees for transportation, the rocker arm 28 away from the load inlet and outlet side of the conveyor 24 is not activated and remains in a blocked state.

[0031] A transition roller 30 is provided at one end of the conveyor 24. The transition roller 30 is provided on the side where the load 5 enters and exits the conveyor 24. The conveying direction of the transition roller 30 is the same as the conveying direction of the conveyor 24, and plays a transition role for the load 5, further filling the gap between the external conveyor line body and the conveyor 24, and ensuring that the load 5 is smoothly conveyed between the conveyor 24 and the external conveyor line body. The transition roller 30 can be a non-powered free roller.

[0032] Position detection mechanisms are provided on both sides of the conveyor 24 along the conveying direction, specifically, a first pair of beam sensors 31 and two groups of second pair of beam sensors 32 are provided, wherein the first pair of beam sensors 31 are arranged in the middle position of the conveying stroke of the conveyor 24, and the second pair of beam sensors 32 are respectively arranged at both ends of the conveyor 24. The first pair of beam sensors 31 and the second pair of beam sensors 32 are used to detect whether the load has entered and completely entered the conveying surface of the conveyor 24, and control the operation of the conveyor 24 and the blocking and releasing status of the rocker arm 28 according to the detection signal.

[0033] The following is an explanation of how this application works.

[0034] The first conveyor line body and the second conveyor line body are butted at 90 degrees by the turntable device, and the load 5 is transported from the first conveyor line body to the butt joint of the first conveyor line body and the turntable. At this time, the conveying direction of the conveyor 24 is driven by the second motor 7 to be the same as the conveying direction of the first conveyor line body. Driven by the first motor 19, the conveyor 24 is close to the butt joint of the first conveyor line body and the turntable until the gap between the conveyor 24 and the first conveyor line body does not exist or is very small. At this time, the swing arm 28 is driven by the swing cylinder 29 to be in a release state perpendicular to the ground, and the conveyor The conveyor 24 is in a conveying state, and the load 5, driven by the first conveying line body, passes through the transition roller 30 and enters the conveyor. With the assistance of the roller bars 26 on both sides, the load 5 runs along the conveying direction of the conveyor 24, and passes through the first and second shooting sensors 31 and 32 respectively. At this time, the conveyor 24 stops running, and the rocker arm 28 returns to a horizontal stop state. The first motor 19 drives the conveyor 24 away from the first conveying line body and makes the axis of the conveyor 24 at the axis position of the top plate 6. At this time, the rotation interference radius of the conveyor 24 is the smallest relative to the turntable. The second motor 7 drives the conveyor 24 to rotate 90 degrees until the conveying direction of the conveyor 24 is the same as the conveying direction of the second conveyor line body. The first motor 19 drives the conveyor 24 to translate toward the second conveyor line body until the gap is minimum. At this time, the rocker arm 28 is driven by the swing cylinder 29 to switch from the blocking state to the releasing state, and the conveyor 24 operates for the load 5. The first and second shooting sensors 31 and 32 detect that the load 5 is completely moved out of the conveyor 24. The rocker arm 28 switches to the blocking state, and the second motor 7 drives the conveyor 24 to reset to the conveying direction of the first conveyor line body. The first motor 19 drives the conveyor 24 to reset to the position where the axis of the conveyor 24 is above the axis of the top plate 6, completing a 90-degree turning conveying action for the load 5.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A turntable device, characterized in that: The utility model comprises a conveying unit, a rotation and translation unit and a rotation driving unit, wherein the rotation driving unit drives the rotation and translation unit to rotate, the conveying unit is arranged above the rotation and translation unit, and the conveying unit can translate in the horizontal direction under the drive of the rotation and translation unit and transport the load as the rotation and translation unit rotates in the horizontal direction.

2. The turntable device according to claim 1, characterized in that: The rotational translation unit includes a substrate and a reciprocating translation mechanism. The substrate is connected to the rotational driving unit. The substrate rotates along the axis in the horizontal direction under the drive of the rotational driving unit. The reciprocating translation mechanism is arranged above the substrate. The conveying unit is arranged above the reciprocating translation mechanism. The reciprocating translation mechanism can drive the conveying unit to reciprocate in the front-rear direction relative to the substrate.

3. The turntable device according to claim 2, characterized in that: The reciprocating displacement mechanism includes a first motor, a first reducer, a synchronous pulley and a synchronous belt. The synchronous pulleys are respectively arranged at both ends of the upper surface of the substrate. The synchronous belt is sleeved on the synchronous pulleys at both ends. The first motor is sleeved with the first reducer to drive the synchronous pulley to rotate forward or reverse periodically, thereby driving the synchronous belt to perform reciprocating displacement in the horizontal direction. The conveying unit is fixedly connected to the synchronous belt through a support frame.

4. The turntable device according to claim 3, characterized in that: The rotation drive unit includes a second motor, a second reducer and a top plate. The second motor is sleeved with the second reducer and fixedly arranged under the top plate. The second reducer passes through a preset hole in the center of the top plate and is fixedly connected to the base plate. The second reducer can drive the base plate to rotate in a horizontal direction relative to the top plate.

5. The turntable device according to claim 4, characterized in that: A detection sheet is provided on one side of the base plate, and a detection component is provided above the top plate. The detection component is used to detect the position of the detection sheet and control the second motor according to the detection signal.

6. The turntable device according to claim 4, characterized in that: A bull's eye bearing is provided under the base plate, and a rotating ball end of the bull's eye bearing contacts the upper surface of the top plate. A sloped boss is provided on the upper surface of the top plate at a position corresponding to the inlet and outlet of the load. When the conveying direction of the conveying unit is located at the inlet and outlet position of the load, the bull's eye bearing abuts against the top surface of the sloped boss.

7. The turntable device according to claim 1, characterized in that: The conveying unit includes a conveyor and a stopping mechanism. The conveying height of the conveyor is the same as the height of the objects entering and exiting the conveyor. The stopping mechanism can switch between stopping and releasing states to control the objects entering and exiting the conveyor.

8. The turntable device according to claim 7, characterized in that: The conveying unit further comprises a transition conveying mechanism, and the transition conveying mechanism is arranged at one end of the conveyor close to the loading and unloading position.

9. The turntable device according to claim 7, characterized in that: The conveying unit also includes a roller bar, the length direction of the roller bar is the conveying direction of the conveyor, a plurality of roller bars are connected to a roller bracket through a connecting rod and are arranged at intervals above the conveyor, the load passes through the spacing space between adjacent roller bars and abuts against adjacent roller bars, and the spacing between adjacent roller bars can be adjusted by adjusting the relative position of the connecting rod and the roller bracket.

10. The turntable device according to claim 7, characterized in that: The conveyor is provided with a position detection mechanism, which is used to detect the position of the load and control the conveyor and the stopping mechanism according to the detection signal.

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