A clamping device for urban rail vehicle wheels

Abstract

This invention discloses a wheel clamping device for urban rail vehicles, used to connect to the lifting device of a palletizing robot. The clamping device includes a connecting plate, a control box, clamping arms, and a measuring gripper. One side of the connecting plate is fixedly connected to the lifting device, and the other side is fixedly connected to the control box. The control box contains a controller and a transmission mechanism for controlling the lateral movement of the clamping arms. The measuring gripper is located between the two clamping arms and connected to the outer wall of the control box via an elastic device. The two clamping arms are respectively connected to the transmission mechanism inside the control box via connecting rods. This invention, when used in conjunction with existing palletizing robots, effectively solves the clamping problem during wheel storage and retrieval, reduces the frequency of manpower use in the production workshop, and improves safety and work efficiency. Its structure is simple and easy to implement.

Description

Technical Field

[0001] This invention belongs to the field of automation technology for rail transit auxiliary equipment, and specifically relates to a clamping device for the wheels of urban rail vehicles. Background Technology

[0002] During major overhauls of urban rail train wheels, wheel spare parts are consistently the most frequently replaced and consumed materials in the wheel and axle workshop. A single wheel typically weighs approximately 350 kg, making wheel storage and transportation a crucial aspect. Ordinary wheel clamps require manual clamping, increasing labor costs. Using single-sided lifting methods to grip wheels is inconvenient for stacking wheels in a three-dimensional storage system, resulting in low efficiency and compromised safety. Utilizing a three-dimensional wheel storage system offers a space-saving solution for intelligent storage and retrieval of wheel spare parts. However, when using an intelligent wheel storage system, suitable clamping devices are needed to facilitate intelligent wheel retrieval by palletizing robots. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of this invention is to provide a safe and reliable clamping device for urban rail vehicle wheels that does not require manual operation.

[0004] Specifically, this is achieved through the following technical solutions:

[0005] A clamping device for urban rail vehicle wheels, used to connect to the lifting device of a palletizing robot, is characterized in that the clamping device includes a connecting plate, a control box, clamping arms, and a measuring chuck. One side of the connecting plate is fixedly connected to the lifting device, and the other side of the connecting plate is fixedly connected to the control box. The control box is equipped with a controller and a transmission mechanism for controlling the lateral movement of the clamping arms. The measuring chuck is located between the two clamping arms and is connected to the outer wall of the control box through an elastic device. The two clamping arms are respectively connected to the transmission mechanism inside the control box through connecting rods.

[0006] Furthermore, the transmission mechanism includes a motor, a drive gear connected to the output shaft of the motor, a reduction gear meshing with the drive gear, a transmission gear coaxially arranged with the reduction gear, and a toothed plate meshing with the transmission gear. A mounting plate is vertically arranged at one end of the toothed plate near the inner wall of the control box, and the connecting rod passes through the outer wall of the control box and is fixed to the mounting plate.

[0007] Furthermore, the gear plate includes an upper gear plate and a lower gear plate, and the lower surface of the upper gear plate and the upper surface of the lower gear plate are provided with locking teeth that mesh with the transmission gear.

[0008] Furthermore, a sliding support plate is provided at the end of the two clamping arms near the control box.

[0009] Furthermore, each of the two clamping arms is equipped with a rubber clamp at the end furthest from the control box. The rubber clamp is fixed to the end of the clamping arm by bolts, and a first light sensor is installed on the rubber clamp.

[0010] Furthermore, the inner surface of the measuring clamp is provided with three grooves evenly distributed along its curvature, and each groove is provided with an elastic measuring head protruding from the groove.

[0011] Furthermore, a second light sensor is provided inside the measuring clamp.

[0012] Furthermore, the elastic device includes a telescopic plate and a spring disposed on the back of the measuring clamp. Two telescopic plates are provided, and the side of the two telescopic plates away from the measuring clamp is connected by a fixed plate. The spring is disposed between the two telescopic plates, and the two ends of the spring are respectively connected to the measuring clamp and the fixed plate. The back of the measuring clamp is integrally provided with a slot for inserting the telescopic plate.

[0013] This invention, when used in conjunction with existing palletizing robots, can effectively solve the clamping problem of wheels during the storage and retrieval process, reduce the frequency of manpower use in the production workshop, and improve safety and work efficiency. Its structure is simple and easy to implement. Attached Figure Description

[0014] Figure 1 This is a top view of the clamping device of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the clamping device of the present invention;

[0016] Figure 3 for Figure 2 Side view;

[0017] Figure 4 This is a schematic diagram of the rubber clamp structure;

[0018] Figure 5 This is a schematic diagram of the measuring clamp structure;

[0019] Figure 6 This is a rendering of the application of the present invention in conjunction with a palletizing robot;

[0020] Figure 7 This is a diagram showing the storage status of wheels in the wheel storage warehouse.

[0021] In the diagram, 1-palletizing robot, 2-lifting device, 3-connecting plate, 4-control box, 5-gripping arm, 6-measuring chuck, 7-controller, 8-connecting rod, 9-motor, 10-drive gear, 11-reduction gear, 12-transmission gear, 13-mounting plate, 14-upper toothed plate, 15-lower toothed plate, 16-sliding support plate, 17-rubber chuck, 18-first light sensor, 19-groove, 20-elastic measuring head, 21-second light sensor, 22-telescopic plate, 23-spring, 24-fixed plate. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings to provide a better understanding of the technical solution.

[0023] This invention relates to a wheel clamping device for urban rail vehicles, primarily used in railway wheel storage depots. It solves the problem of horizontally storing and clamping wheels in automated storage systems. The wheel clamping device works in conjunction with a palletizing robot 1 to automate wheel storage and retrieval. The device is mounted perpendicularly to the lifting arm of the palletizing robot 1's lifting mechanism 2, enabling automatic wheel clamping within the storage depot. A diagram illustrating the combined use of the clamping device and the palletizing robot 1 is shown below. Figure 6 As shown, the wheels are stored in the wheel storage warehouse in the following state: Figure 7 As shown. The palletizing robot 1 and the lifting device 2 are existing auxiliary equipment.

[0024] Urban rail vehicle wheels typically weigh 300-400 kg, making them quite heavy. Traditional manual hoisting methods are generally unsuitable for use in wheel storage depots located at higher positions. Using a wheel clamping device, wheels can be horizontally transported to any position in the automated wheel storage depot. Combined with a palletizing robot, rapid storage and retrieval of wheels can be achieved. When wheels are stored in the depot, if... Figure 7 As shown, the convex side of the wheel hub is placed downwards, and there is a suspended space on both sides of the wheel rim to facilitate clamping by the clamping device.

[0025] The specific structure of this invention is as follows: Figure 1-5As shown, the device includes a connecting plate 3, a control box 4, a laterally extendable clamping arm 5, and a measuring chuck 6. One side of the connecting plate 3 is fixedly connected to the lifting device 2, and the other side of the connecting plate 3 is fixedly connected to the control box 4. The control box 4 contains a controller 7 for controlling the lateral movement of the clamping arm 5 and a transmission mechanism. The two clamping arms 5 are respectively connected to the transmission mechanism in the control box 4 via connecting rods 8. The transmission mechanism includes a motor 9, a drive gear 10 connected to the output shaft of the motor 9, and a gear meshing with the drive gear 10. The gear 11 is a reduction gear, the transmission gear 12 is coaxially arranged with the reduction gear 11, and the gear plate meshes with the transmission gear 12. The gear plate includes an upper gear plate 14 and a lower gear plate 15. The lower surface of the upper gear plate 14 and the upper surface of the lower gear plate 15 are provided with locking teeth that mesh with the transmission gear 12. The rotation of the locking teeth drives the upper gear plate 14 and the lower gear plate 15 to move towards each other. A mounting plate 13 is vertically arranged at one end of the gear plate near the inner wall of the control box 4. The connecting rod 8 passes through the outer wall of the control box 4 and is fixed to the mounting plate 13.

[0026] To clamp the wheel, each of the two clamping arms 5 is equipped with a rubber chuck 17 at the end away from the control box 4. The rubber chuck 17 is fixed to the end of the clamping arm 5 by bolts. This arrangement facilitates the replacement of the rubber chuck 17. A first light sensor 18 is installed on the rubber chuck 17. The measuring chuck 6 is located between the two clamping arms 5 and is connected to the outer wall of the control box 4 through an elastic device. The two clamping arms 5 are respectively connected to the transmission mechanism inside the control box 4 through connecting rods 8. Three grooves 19 are evenly distributed along the arc of the inner side of the measuring chuck 6. An elastic measuring head 20 protruding from the groove 19 is installed in each groove 19. A second light sensor 21 is installed inside the measuring chuck 6.

[0027] The elastic device includes a telescopic plate 22 and a spring 23 disposed on the back of the measuring clamp 6. Two telescopic plates 22 are provided, and the side of the two telescopic plates 22 away from the measuring clamp 6 is connected by a fixing plate 24. The spring 23 is disposed between the two telescopic plates 22, and the two ends of the spring 23 are respectively connected to the measuring clamp 6 and the fixing plate 24. The back of the measuring clamp 6 is integrally provided with a slot for inserting the telescopic plate 22.

[0028] The clamping device has an overall length of 900mm, a width of 1000mm, and a height of 200mm, with a designed load capacity of 500kg. Its width is sufficient to accommodate wheels with a maximum diameter of 1000mm. The wheel clamping device is connected to the lifting device 2 of the palletizing robot 1 via a connecting plate 3, allowing the palletizing robot 1 to move the device vertically and horizontally. Rubber chucks 17 are bolted to the end of the clamping arm 5, with a rubber contact surface. A first light sensor 18 is installed inside the rubber chuck 17 to detect the wheel clamping status. The measuring chuck 6, used for wheel diameter measurement, has three evenly distributed grooves 19 on its inner wall. Each groove 19 contains an elastic measuring head 20 protruding from the groove 19. The measuring chuck 6 achieves a compression stroke of approximately 50mm via a spring 23 and a telescopic plate 22 to accommodate wheels of different sizes. During clamping, two rubber chucks 17 provide support for the wheel, and a second light sensor 21 detects the wheel clamping status.

[0029] This invention features a simple structure and strong practicality. The clamping device allows for the free horizontal storage and retrieval of wheels in a three-dimensional wheel storage system, facilitating wheel stacking in conjunction with a palletizing robot. This wheel clamping device is a tooling component for the palletizing robot. Control functions are integrated into the palletizing robot. The wheel clamping device operates by the control box 4 controlling the extension and retraction of the clamping arm 5. The controller 7 controls the rotation of the motor 9, which in turn drives the reduction gear 11 via the drive gear 10. The reduction gear 11 then drives the transmission gear 12, which in turn moves the upper and lower gear plates 14 and 15, thereby causing the clamping arm 5 to extend and retract.

[0030] When the wheel is put into storage, the palletizing robot 1 transports the wheel to the designated position on the shelf where the wheel is stored (existing technology). The lifting device descends until the wheel contacts the bottom of the shelf. A pressure sensor is installed at the bottom of the gripping arm 5. When the sensor detects that the wheel cannot descend further, the lifting device 2 stops descending. The motor 9 controls the gripping arm 5 to open, and the palletizing robot 1 retreats and leaves the work area.

[0031] When a wheel leaves the warehouse, the gripping arm 5 opens, and the palletizing robot 1 automatically finds the location where the wheel is stored (existing technology). The measuring chuck 6 contacts the wheel tread, and the second light sensor 21 detects that the measuring chuck 6 is in contact with the tread. The wheel diameter is measured by the elastic measuring head 20 on the measuring chuck 6 contacting the tread. Based on the measured wheel diameter data, the retraction stroke of the measuring chuck 6 is controlled. After compression is completed, the gripping arm 5 begins to move, retracting and clamping the wheel. The first light sensor 18 on the rubber chuck 17 detects that the wheel is fully clamped. At this time, the distances of the two rubber chucks 17 and the measuring chuck 6 from the center of the wheel are the same, and the wheel can move. The palletizing robot 1 begins to move the wheel to the designated position.

[0032] All of the above applications can be accomplished using the tooling of this invention, which can be used for automated wheel handling, reducing the need for manual labor and saving operation time.

Claims

1. A clamping device for the wheels of urban rail vehicles, for connection to the lifting device (2) of a palletizing robot (1), characterized in that, The clamping device includes a connecting plate (3), a control box (4), clamping arms (5), and a measuring chuck (6). One side of the connecting plate (3) is fixedly connected to the lifting device (2), and the other side of the connecting plate (3) is fixedly connected to the control box (4). The control box (4) is equipped with a controller (7) for controlling the lateral movement of the clamping arms (5) and a transmission mechanism. The measuring chuck (6) is located between the two clamping arms (5) and is connected to the outer wall of the control box (4) through an elastic device. The two clamping arms (5) are respectively connected to the control box (4) through connecting rods (8). The transmission mechanism inside the box (4) is connected; a rubber chuck (17) is provided at the end of each of the two clamping arms (5) away from the control box (4). The rubber chuck (17) is fixed to the end of the clamping arm (5) by bolts. A first light sensor (18) is provided on the rubber chuck (17); three grooves (19) are evenly distributed along the arc of the inner side of the measuring chuck (6). An elastic measuring head (20) protruding from the groove (19) is provided in each groove (19). A second light sensor (21) is provided in the measuring chuck (6). The transmission mechanism includes a motor (9), a drive gear (10) connected to the output shaft of the motor (9), a reduction gear (11) meshing with the drive gear (10), a transmission gear (12) coaxially arranged with the reduction gear (11), and a toothed plate meshing with the transmission gear (12). A mounting plate (13) is vertically arranged at one end of the toothed plate near the inner wall of the control box (4). The connecting rod (8) passes through the outer wall of the control box (4) and is fixed to the mounting plate (13). The elastic device includes a telescopic plate (22) and a spring (23) disposed on the back of the measuring clamp (6). Two telescopic plates (22) are provided, and the two telescopic plates (22) are connected by a fixing plate (24) on the side away from the measuring clamp (6). The spring (23) is disposed between the two telescopic plates (22), and the two ends of the spring (23) are respectively connected to the measuring clamp (6) and the fixing plate (24). The back of the measuring clamp (6) is integrally provided with a slot for inserting the telescopic plate (22).

2. The clamping device for urban rail vehicle wheels as described in claim 1, characterized in that... The toothed plate includes an upper toothed plate (14) and a lower toothed plate (15). The lower surface of the upper toothed plate (14) and the upper surface of the lower toothed plate (15) are provided with locking teeth that mesh with the transmission gear (12).

3. The clamping device for urban rail vehicle wheels as described in claim 1, characterized in that... A sliding support plate (16) is provided at one end of the two clamping arms (5) near the control box (4).

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