A switching turntable assembled with a travel lever

Abstract

This utility model relates to the field of stroke rod assembly, and discloses a switching turntable for stroke rod assembly, including a door. The door is rotatably connected to the front side of a frame via a hinge. A placement plate is fixed inside the frame, and a motor is fixed to the bottom surface of the placement plate. The output shaft of the motor passes through the placement plate and is fixed to a rotating disk. Several limiting cylinders are detachably installed on the top surface of the rotating disk. In this utility model, through the coordinated action of the door, frame, placement plate, motor, rotating disk, limiting cylinders, circular groove, positioning shaft, electric push rod, blocking plate, pressure sensor, and PLC controller, precise rotational positioning of the rotating disk and stroke rod is achieved. Compared with traditional positioning methods using photoelectric sensors, this effectively avoids position deviation problems, eliminates the need for dynamic compensation, improves the positioning accuracy and stability during stroke rod assembly, and thus enhances the quality and efficiency of the entire assembly process.

Description

Technical Field

[0001] This utility model relates to the technical field of stroke lever assembly, specifically a switching turntable for stroke lever assembly. Background Technology

[0002] A stroke lever is a rigid rod-shaped component, typically made of metal (such as steel or aluminum alloy) or high-strength engineering plastics. It is a core component in mechanical systems used to transmit linear motion or control displacement. A stroke lever assembly and switching turntable is a mechanical device used in automated assembly lines. The turntable's rotation enables multi-station switching, with each station completing specific assembly steps (such as part gripping, positioning, and fastening), ultimately completing the automated assembly of stroke levers (such as robotic arm joints or hydraulic cylinder piston rods).

[0003] Currently, most switching turntables assembled with travel levers typically involve placing the travel lever inside the limiting cylinder on the turntable, then rotating the turntable to a certain angle and pausing, followed by assembling the shims and springs, and finally placing it on the receiving plate. However, each time the turntable rotates, it is usually positioned using a photoelectric sensor, which has the following drawback: when the turntable is positioned by the photoelectric sensor, there is a positional deviation, requiring dynamic compensation. Summary of the Invention

[0004] The purpose of this invention is to provide a switching turntable assembled with a travel lever to solve the problem of positional deviation when the turntable is positioned by a photoelectric sensor, which requires dynamic compensation.

[0005] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a switching turntable assembled with a travel rod, including a door, the door being rotatably connected to the front side of a frame via a hinge, a placement plate being fixed inside the frame, a motor being fixed to the bottom surface of the placement plate, the output shaft of the motor passing through the placement plate and fixed to a rotating disk, a plurality of limiting cylinders being detachably installed on the top surface of the rotating disk, a circular groove being formed on the top surface of the placement plate, a plurality of positioning shafts being fixed to the bottom surface of the rotating disk, the positions of the plurality of positioning shafts corresponding to the plurality of limiting cylinders respectively, the plurality of positioning shafts being movably arranged in the circular groove, an electric push rod being fixed to the top surface of the placement plate, a blocking plate being fixed to one end of the telescopic rod of the electric push rod, a pressure sensor being fixed to the right side of the blocking plate, a PLC controller being fixed to the door, and the motor, electric push rod and pressure sensor being electrically connected to the PLC controller.

[0006] Preferably, the top surface of the rotating disk is provided with a plurality of threaded grooves, the bottom surface of the plurality of limiting cylinders is respectively fixed with mounting plates, the top surface of the plurality of mounting plates is respectively provided with two threaded holes, and bolts are threadedly connected in the two threaded holes respectively, and the threaded end of the bolts is threadedly connected to the inside of the threaded grooves.

[0007] Preferably, a number of mounting plates are fixed with positioning blocks on their bottom surfaces, and a number of positioning grooves are provided on the top surface of the rotating disk, with the positioning grooves respectively positioning the positioning blocks.

[0008] Preferably, the inner walls of the plurality of limiting cylinders are provided with fixing grooves on the front and rear sides, and springs are fixed inside the two fixing grooves respectively, and arc-shaped clamps are fixed to the inner ends of the two springs.

[0009] Preferably, a limiting groove is provided on one side of each of the two fixing grooves, and a limiting post is slidably inserted into the interior of each of the two limiting grooves. The inner ends of the two limiting posts are fixedly connected to the outer walls of the two arc-shaped clamps, and the two springs are respectively wrapped around the two limiting posts.

[0010] Preferably, the top surface of the rotating disk has a plurality of weight-reducing holes.

[0011] Compared with the prior art, the switching turntable assembled with a stroke lever using the above technical solution has the following beneficial effects: 1. Through the coordinated action of the box door, frame, placement plate, motor, rotating disk, limit cylinder, circular groove, positioning shaft, electric push rod, blocking plate, pressure sensor and PLC controller, precise rotational positioning of the rotating disk and stroke rod is achieved. Compared with the traditional positioning method using photoelectric sensors, it effectively avoids the problem of position deviation, eliminates the need for dynamic compensation, improves the positioning accuracy and stability during the stroke rod assembly process, and thus improves the quality and efficiency of the entire assembly process. Second, during use, simply place the mounting plate in the appropriate position on the rotating disk, align the threaded hole with the threaded groove, and then screw in the bolts to complete the installation. This facilitates the maintenance or replacement of the limit cylinder. It provides auxiliary positioning, ensuring the threaded hole and threaded groove correspond, thus improving the convenience and accuracy of installation. Thirdly, during use, the spring force acts in the opposite direction on the arc-shaped clamps, causing the two arc-shaped clamps to clamp the travel rod, thus firmly holding and fixing the travel rod after placement. This prevents the travel rod from shaking or shifting during the rotation of the turntable or assembly process, which could affect the assembly accuracy and quality. The limiting post slides inside the limiting groove, limiting the arc-shaped clamps and ensuring they do not shift or shake during movement. The weight-reducing holes reduce the overall weight of the turntable, thereby reducing the load on the motor and lowering costs. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0013] Figure 2 This is a breakdown diagram of an embodiment.

[0014] Figure 3 This is a disassembled schematic diagram of the positioning shaft and mounting plate in an embodiment.

[0015] Figure 4 This is a cross-sectional view of the limiting cylinder and mounting plate in an embodiment.

[0016] In the diagram: 1. Box door; 2. Frame; 3. Placement plate; 4. Motor; 5. Rotary disc; 6. Limiting cylinder; 7. Circular groove; 8. Positioning shaft; 9. Electric push rod; 10. Blocking plate; 11. Pressure sensor; 12. PLC controller; 13. Threaded groove; 14. Mounting plate; 15. Threaded hole; 16. Bolt; 17. Positioning block; 18. Positioning groove; 19. Fixing groove; 20. Spring; 21. Arc-shaped clamp; 22. Limiting groove; 23. Limiting post; 24. Weight reduction hole. Detailed Implementation

[0017] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0018] like Figures 1-4 As shown, a switching turntable assembled with a travel lever includes a door 1, which is rotatably connected to the front of a frame 2 via a hinge. A placement plate 3 is fixed inside the frame 2, and a motor 4 is fixed to the bottom surface of the placement plate 3. The output shaft of the motor 4 passes through the placement plate 3 and is fixed to a rotating disk 5. Several limiting cylinders 6 are detachably installed on the top surface of the rotating disk 5. A circular groove 7 is opened on the top surface of the placement plate 3. Several positioning shafts 8 are fixed to the bottom surface of the rotating disk 5. The positions of the positioning shafts 8 correspond to the positions of the limiting cylinders 6. The positioning shafts 8 are movably arranged in the circular groove 7. An electric push rod 9 is fixed to the top surface of the placement plate 3. A blocking plate 10 is fixed to one end of the telescopic rod of the electric push rod 9. A pressure sensor 11 is fixed to the right side of the blocking plate 10. A PLC controller 12 is fixed on the door 1. The PLC controller 12 is a Siemens S7-200. The motor 4, the electric push rod 9, and the pressure sensor 11 are all electrically connected to the PLC controller 12.

[0019] In use, eight sets of limit cylinders 6 and positioning shafts 8 are distributed on the rotating disk 5. The stroke rod is placed in the limit cylinder 6, and then the motor 4 is started by the PLC controller 12. After the motor 4 runs, its output shaft drives the rotating disk 5 to rotate, which in turn causes the limit cylinders 6 on the rotating disk 5 and the stroke rod placed in them to rotate together. At the same time, several positioning shafts 8 move in the circular groove 7. When one of the positioning shafts 8 moves to contact the pressure sensor 11 on the baffle plate 10, the baffle plate 10 plays a blocking role, preventing the positioning shaft 8 and the rotating disk 5 from continuing to rotate. At this time, the rotating disk 5 rotates exactly 45 degrees, accurately corresponding to the assembly station. After the pressure sensor 11 detects the pressure, it quickly transmits the information to the PLC controller 12. The PLC controller 12 immediately controls the motor 4 to stop running. Subsequently, each station can perform the corresponding assembly operation at the same time. After assembly, the electric push rod 9 and motor 4 are started again by the PLC controller 12. The electric push rod 9 drives the blocking plate 10 and pressure sensor 11 to move forward and retract, making room for the rotating disk 5 to continue rotating. The motor 4 drives the rotating disk 5 to continue rotating. After rotating to the appropriate position, the electric push rod 9 moves the blocking plate 10 and pressure sensor 11 backward and extends, preparing to block the next positioning shaft 8.

[0020] Through the coordinated action of the door 1, frame 2, placement plate 3, motor 4, rotating disk 5, limiting cylinder 6, circular groove 7, positioning shaft 8, electric push rod 9, blocking plate 10, pressure sensor 11, and PLC controller 12, precise rotational positioning of the rotating disk 5 and the stroke rod is achieved. Compared with the traditional positioning method using photoelectric sensors, this effectively avoids position deviation problems, eliminates the need for dynamic compensation, and improves the positioning accuracy and stability during the stroke rod assembly process, thereby enhancing the quality and efficiency of the entire assembly process.

[0021] like Figures 2-4 As shown, the top surface of the rotating disk 5 is provided with several threaded grooves 13, and the bottom surfaces of several limiting cylinders 6 are respectively fixed with mounting plates 14. The top surfaces of several mounting plates 14 are respectively provided with two threaded holes 15, and bolts 16 are threadedly connected in the two threaded holes 15. The threaded end of the bolt 16 is threadedly connected to the inside of the threaded groove 13.

[0022] When the limiting cylinder 6 needs maintenance or replacement during use, the operator only needs to unscrew the bolt 16 from the threaded hole 15 and the threaded groove 13 to remove the mounting plate 14 along with the limiting cylinder 6 from the rotating disk 5. When installing a new limiting cylinder 6, simply place the mounting plate 14 in the appropriate position on the rotating disk 5, align the threaded hole 15 with the threaded groove 13, and then screw in the bolt 16 to complete the installation, which facilitates the maintenance or replacement of the limiting cylinder 6.

[0023] like Figures 2-4As shown, a number of mounting plates 14 are fixed with positioning blocks 17 on their bottom surfaces, and a number of positioning grooves 18 are opened on the top surface of the rotating disk 5. The positioning grooves 18 respectively position the positioning blocks 17. The inner walls of the number of limiting cylinders 6 are provided with fixing grooves 19 on their front and rear sides. Springs 20 are fixed inside the two fixing grooves 19 respectively, and arc-shaped clamps 21 are fixed to the inner ends of the two springs 20.

[0024] During use, when the operator installs the mounting plate 14 onto the rotating disk 5, the positioning block 17 is first inserted into the positioning groove 18 for auxiliary positioning, ensuring that the threaded hole 15 corresponds to the threaded groove 13, thus improving the convenience and accuracy of installation. When the travel rod is placed inside the limiting cylinder 6, it will press against the two arc-shaped clamping plates 21. Under the pressure of the travel rod, the two arc-shaped clamping plates 21 will move away from each other. At this time, the spring 20 is in a compressed state, and the elastic force of the spring 20 will act in the opposite direction on the arc-shaped clamping plates 21, causing the two arc-shaped clamping plates 21 to clamp the travel rod, thereby firmly clamping and fixing the travel rod after placement. This prevents the travel rod from shaking or shifting during the rotation of the rotating disk 5 or during assembly, which would affect the assembly accuracy and quality.

[0025] like Figures 2-4 As shown, a limiting groove 22 is provided on one side of each of the two fixed grooves 19. A limiting post 23 is slidably inserted into the interior of each of the two limiting grooves 22. The inner ends of the two limiting posts 23 are fixedly connected to the outer walls of the two arc-shaped clamps 21. Two springs 20 are respectively wrapped around the two limiting posts 23. Several weight-reducing holes 24 are provided on the top surface of the rotating disk 5.

[0026] During use, when the arc-shaped clamp 21 moves, the limiting post 23 slides inside the limiting groove 22, which limits the arc-shaped clamp 21 and ensures that it will not shift or wobble during movement. The weight-reducing hole 24 reduces the overall weight of the rotating disk 5, thereby reducing the load on the motor 4 and lowering costs.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A switching turntable assembled with a travel lever, comprising a door (1), the door (1) being rotatably connected to the front side of a frame (2) via a hinge, characterized in that, The frame (2) has a fixed placement plate (3) inside. A motor (4) is fixed to the bottom surface of the placement plate (3). The output shaft of the motor (4) passes through the placement plate (3) and is fixed to a rotating disk (5). Several limiting cylinders (6) are detachably installed on the top surface of the rotating disk (5). A circular groove (7) is opened on the top surface of the placement plate (3). Several positioning shafts (8) are fixed to the bottom surface of the rotating disk (5). The positions of the positioning shafts (8) are respectively connected to the positions of the limiting cylinders (6). Correspondingly, several positioning shafts (8) are movably arranged in the circular groove (7). An electric push rod (9) is fixed on the top surface of the placement plate (3). A blocking plate (10) is fixed at one end of the telescopic rod of the electric push rod (9). A pressure sensor (11) is fixed on the right side of the blocking plate (10). A PLC controller (12) is fixed on the door (1). The motor (4), electric push rod (9) and pressure sensor (11) are all electrically connected to the PLC controller (12).

2. The switching turntable assembled with a travel lever according to claim 1, characterized in that: The top surface of the rotating disk (5) is provided with several threaded grooves (13), and the bottom surfaces of several limiting cylinders (6) are respectively fixed with mounting plates (14). The top surfaces of several mounting plates (14) are respectively provided with two threaded holes (15), and bolts (16) are threadedly connected in the two threaded holes (15). The threaded end of the bolt (16) is threadedly connected to the inside of the threaded groove (13).

3. The switching turntable assembled with a travel lever according to claim 2, characterized in that: The bottom surfaces of several mounting plates (14) are respectively fixed with positioning blocks (17), and the top surface of the rotating disk (5) is provided with several positioning grooves (18), which respectively position several positioning blocks (17).

4. The switching turntable assembled with a travel lever according to claim 3, characterized in that: The inner walls of several limiting cylinders (6) are provided with fixing grooves (19) on the front and rear sides, and springs (20) are fixed inside the two fixing grooves (19), and arc-shaped clamps (21) are fixed inside the two springs (20).

5. A switching turntable assembled with a travel lever according to claim 4, characterized in that: Each of the two fixed grooves (19) has a limiting groove (22) on one side. A limiting post (23) is slidably inserted into the interior of each of the two limiting grooves (22). The inner ends of the two limiting posts (23) are fixedly connected to the outer walls of the two arc-shaped clamps (21). The two springs (20) are respectively wrapped around the two limiting posts (23).

6. The switching turntable assembled with a travel lever according to claim 1, characterized in that: The top surface of the rotating disk (5) is provided with several weight-reducing holes (24).

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