Intelligent logistics robot for materials between upstream and downstream stations in processing workshop

Abstract

The utility model discloses an intelligent material logistics robot between upstream and downstream stations in a processing workshop, which comprises a robot chassis, an electric control cabinet and a material conveyor, the electric control cabinet is arranged on the robot chassis, the material conveyor comprises a stretching mechanism and a rolling mechanism, the stretching mechanism comprises a first linear module, a first motor and a first photoelectric switch, and the rolling mechanism comprises a second linear module and a second motor. The first motor drives the first linear module to drive the rolling mechanism to reciprocate in the horizontal direction, and the first photoelectric switches are arranged at the two ends of the first linear module to detect stretching and retracting in-place signals of the rolling mechanism; the rolling mechanism is arranged at the movable end of the first linear module and comprises a conveying unit used for conveying materials. The extending mechanism composed of the linear module, the motor and the optoelectronic switch is arranged on the material conveyor, the rolling mechanism is arranged at the movable end of the linear module, active extending and retracting of the material conveying mechanism are achieved, and the problem that butt joint of the material conveying mechanism and a station conveying line is inconvenient is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics conveying equipment, in particular to an intelligent logistics robot for materials between upstream and downstream workstations in a processing workshop. Background Art

[0002] With the continuous improvement of industrial automation, intelligent logistics robots are increasingly used in the material transfer of processing workshops. Existing intelligent logistics robots are mainly used to realize the automatic transportation of materials between workstations, thereby improving production efficiency and reducing manual handling costs.

[0003] Prior art, such as Chinese patent publication CN117734552A, discloses an intelligent logistics robot comprising a base, a robotic arm assembly, and a material bin assembly. The base comprises a chassis and multiple travel units, with a rotating platform mounted on the chassis. The robotic arm assembly and the material bin assembly are mounted on the chassis, with at least one connected to the rotating platform. The travel unit comprises a wheel assembly and a shock absorber to facilitate the placement and transport of materials. This solution utilizes shock absorbers to improve the robot's driving stability.

[0004] However, the intelligent logistics robots in the existing technology have the following technical problems when docking materials with the workstation conveyor line. For example, the docking between the material conveying mechanism and the workstation conveyor line is not convenient enough, and the robot needs to be precisely positioned to achieve smooth transfer of materials, which increases the difficulty of docking; or there is a lack of a clamping protection mechanism for the material, which makes it easy for the material to shift or tip over during transportation, affecting transportation safety.

[0005] Therefore, how to improve the convenience of docking between intelligent logistics robots and workstation conveyor lines and ensure the stability of the material transportation process is a technical problem that needs to be solved urgently. Utility Model Content

[0006] The technical problem to be solved by the present invention is: to solve the technical problems existing in the prior art, such as the inconvenient docking of the material conveying mechanism with the workstation conveying line, the need for precise robot positioning to achieve smooth material transfer, and the lack of effective protection of materials during transportation, which makes them prone to displacement or overturning, and to provide an intelligent material logistics robot between upstream and downstream workstations in a processing workshop.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] An intelligent material logistics robot between upstream and downstream workstations in a processing workshop includes a robot chassis, an electric control cabinet and a material conveyor. The electric control cabinet is arranged on the robot chassis. The material conveyor includes an extension mechanism and a rolling mechanism. The extension mechanism includes a first linear module, a first motor and a first photoelectric switch. The first motor drives the first linear module to drive the rolling mechanism to reciprocate in the horizontal direction. The first photoelectric switch is arranged at both ends of the first linear module to detect the extension and retraction signals of the rolling mechanism; the rolling mechanism is arranged at the movable end of the first linear module and includes a conveying unit for conveying materials.

[0009] Preferably, the rolling mechanism further includes a driving motor and a reducer, and the driving motor drives the conveying unit to operate via the reducer.

[0010] Preferably, the conveying unit includes a chain plate or a belt, and two ends of the conveying unit are provided with a radiation switch for detecting the position of the material.

[0011] Preferably, the material conveyor also includes a clamping mechanism, which includes a second linear module, a second motor and a clamping assembly. The fixed end of the second linear module is fixedly connected to the robot chassis through a mounting seat. The second motor is arranged at the bottom of the second linear module and is used to drive the slider of the second linear module to move up and down. The clamping assembly is connected to the slider of the second linear module.

[0012] Preferably, the clamping assembly includes an upper plate, a movable lower plate, an optical axis, a linear bearing and a spring. The four corners of the upper plate are provided with mounting holes, the optical axis is vertically arranged in the mounting holes, the four corners of the movable lower plate are provided with through holes, and four linear bearings are respectively arranged in the through holes at the four corners of the movable lower plate. The movable lower plate is mounted on the optical axis through the linear bearing sleeve, and a spring is sleeved on each optical axis. The two ends of the spring are respectively in contact with the lower surface of the upper plate and the upper surface of the movable lower plate.

[0013] Preferably, the pressing mechanism further includes a second photoelectric switch, and the second photoelectric switch is arranged on the second linear module.

[0014] Preferably, the robot chassis includes driving wheels, universal wheels, a battery pack and a navigation device.

[0015] Preferably, a controller is provided in the electric control cabinet, and the controller is electrically connected to the motor, the photoelectric switch, the drive motor and the beam switch respectively, and is used to control the coordinated action of the extending mechanism and the rolling mechanism.

[0016] The beneficial effects of the present invention include the following:

[0017] The utility model arranges an extension mechanism consisting of a linear module, a motor and a photoelectric switch on the material conveyor, and arranges a rolling mechanism at the movable end of the linear module, so that the rolling mechanism can perform horizontal reciprocating motion under the drive of the motor, thereby realizing active extension and retraction of the material conveying mechanism, effectively solving the problem of inconvenient docking between the material conveying mechanism and the work station conveying line, significantly reducing the requirements for robot positioning accuracy, and improving material transfer efficiency.

[0018] The utility model provides a clamping mechanism with a clamping assembly on the material conveyor, wherein the clamping assembly adopts a combined structure of an upper plate, a movable lower plate, an optical axis, a linear bearing and a spring, thereby forming a clamping system with guiding and buffering functions, thereby achieving reliable fixation of the material, effectively solving the problem that the material is easily displaced or overturned during transportation, and significantly improving the safety and stability of material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the intelligent material logistics robot between upstream and downstream workstations in the processing workshop in Example 1;

[0020] Figure 2 Schematic diagram of the structure of the material conveyor in Example 1;

[0021] Figure 3 Schematic diagram of the extension mechanism structure in Example 1;

[0022] Figure 4 Schematic diagram of the rolling mechanism structure in Example 1;

[0023] Figure 5 Schematic diagram of the structure of the pressing mechanism in Example 1;

[0024] Figure 6 This is a schematic diagram of the clamping mechanism in Example 1 installed on the electric control cabinet.

[0025] Figure numerals: 1. Robot chassis; 2. Electric control cabinet; 3. Material conveyor; 4. Extending mechanism; 41. First linear module; 42. First motor; 43. First photoelectric switch; 5. Rolling mechanism; 51. Driving motor; 52. Reducer; 53. Chain plate; 54. Optical switch; 55. Guide plate; 56. Gear chain; 6. Clamping mechanism; 61. Second linear module; 62. Second motor; 63. Second photoelectric switch; 64. Optical axis; 65. Upper plate; 66. Movable lower plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and examples, but these specific implementation schemes do not limit the protection scope of the present invention in any way. Example

[0027] Refer to the attached Figure 1-6 , an intelligent material logistics robot between upstream and downstream workstations in a processing workshop, including a robot chassis 1, an electric control cabinet 2, an operation panel and multiple groups of material conveyors 3.

[0028] The robot chassis 1 serves as the mobile platform for the entire device. It is equipped with drive wheels and universal casters. The universal casters are located at the four corners of the chassis, with the drive wheels mounted between them. The drive wheels are driven by servo motors, providing power output; the universal casters serve as auxiliary support, ensuring the robot's smooth operation. A lithium battery pack is installed inside the chassis to power the entire system, and a navigation laser device is mounted on top of the chassis for real-time environmental information.

[0029] There are two electrical control cabinets 2, fixedly mounted on top of the robot chassis 1. These cabinets integrate core control components such as the power module, driver, controller, circuit breaker, and relay. The power module converts battery voltage to the voltage required by each device; the driver precisely controls the motion of each actuator; the controller handles motion control, communication, and logic processing for the entire system; the circuit breaker provides overload protection; and the relay converts and isolates control signals.

[0030] The operation panel is installed on the front of the electric control cabinet 2. It has a start button, a stop button, and an emergency stop button. The touch screen displays parameters such as battery power, robot operating status, and fault information in real time.

[0031] The material conveyor 3 adopts a modular design and can be configured in multiple groups according to actual needs. Each group of material conveyor 3 includes an extension mechanism 4, a rolling mechanism 5 and a pressing mechanism 6. These three mechanisms work together to achieve accurate and stable material transportation.

[0032] The extension mechanism 4 includes a first linear module 41, a first motor 42 and a first photoelectric switch 43. Among them, the first linear module 41 adopts a slider guide structure, including a fixed guide rail and a slider. The fixed guide rail is fixedly connected to the robot chassis 1 through a mounting seat, and the slider can move along the fixed guide rail. The first motor 42 is fixed to one end of the first linear module 41 and is connected to the slider through a synchronous belt transmission mechanism. The synchronous belt transmission mechanism includes a synchronous pulley and a synchronous belt. The synchronous pulley is respectively installed on the output shaft of the first motor 42 and the other end of the first linear module 41, and the synchronous belt is fixedly connected to the slider. The first motor 42 drives the slider to reciprocate on the fixed guide rail through the synchronous belt transmission mechanism, thereby driving the rolling mechanism 5 connected to the slider to realize horizontal extension and retraction. The first photoelectric switch 43 is respectively installed at both ends of the fixed guide rail to detect the extension and retraction signals of the rolling mechanism 5.

[0033] The rolling mechanism 5 comprises a drive motor 51, a speed reducer 52, and chain sprockets 53 (or belt) to form a conveying unit. The drive motor 51 drives the drive shaft of the chain sprockets 53 via the speed reducer 52, which in turn drives the chain sprockets 53 via a gear chain 56. Guide plates 55 are located on both sides of the chain sprockets 53 to prevent material from shifting during conveyance. Optical switches 54 are installed at both ends of the conveying unit to detect material arrival. The entire rolling mechanism 5 adopts a modular design for easy maintenance and replacement.

[0034] The clamping mechanism 6, used to securely secure the material, comprises a second linear module 61, a second motor 62, and a clamping assembly. The linear module 61 utilizes a slider guide structure, with its fixed end securely connected to the robot chassis 1 via a mounting bracket. The second motor 62, mounted at the bottom of the linear module 61, drives the slider in the linear module 61 up and down. A second photoelectric switch 63, mounted on the linear module 61, detects the position of the clamping assembly.

[0035] The clamping assembly, connected to the slider (movable end) of the second linear module 61, comprises an upper plate 65, a movable lower plate 66, an optical axis 64, linear bearings, and springs. Mounting holes are located at each of the four corners of the upper plate 65 to secure the optical axis 64. Four optical axis 64 are positioned vertically at the corners of the upper plate 65.

[0036] The movable lower plate 66 is located directly below the upper plate 65. It has through-holes at its four corners, each housing a linear bearing. These linear bearings are secured to the through-holes of the movable lower plate 66 via an interference fit. The movable lower plate 66 is mounted on the four optical shafts 64 via these linear bearings, ensuring smooth movement during its upward and downward motion. Each optical shaft 64 is fitted with a compression spring, with its upper end in contact with the lower surface of the upper plate 65 and its lower end in contact with the upper surface of the movable lower plate 66.

[0037] During operation, when material compression is required, the linear module 61, driven by the second motor 62, moves the upper plate 65 downward. The upper plate 65 then descends with the movable lower plate 66 via the optical axis 64 until it contacts the material. As the downward pressure continues, the spring is compressed, and its deformation provides a continuous and stable pressing force for the material while also acting as a buffer. The second photoelectric switch 63 detects the position of the compression assembly to determine whether the material is securely compressed. When the material needs to be released, the second linear module 61 moves the upper plate 65 upward. The spring force causes the movable lower plate 66 to rise, releasing the material.

[0038] The working principle and method of the intelligent logistics robot for materials between upstream and downstream workstations in the above-mentioned processing workshop are:

[0039] In the first step, the operator initializes the robot via the touch screen, establishing a wireless connection between the robot and the workshop scheduling system. After the system completes its self-check, it waits to receive transfer orders.

[0040] In the second step, after receiving the task instructions from the dispatch system, the robot autonomously drives to the designated loading station according to the preset route, guided by the navigation laser device. Once at the target location, it is precisely positioned using the laser positioning system.

[0041] The third step is to execute the corresponding loading and unloading process according to the task type:

[0042] When loading, the extending mechanism 4 first drives the rolling mechanism 5 to extend outward until the first photoelectric switch 43 detects that it is in place; then the rolling mechanism 5 is started, docked with the workstation conveyor line and receives the material until the shooting switch 54 detects that the material is in place; then the rolling mechanism 5 is retracted; finally, the clamping mechanism 6 descends to fix the material until the proximity switch detects that it is in place.

[0043] When unloading, the pressing mechanism 6 first rises to release the material; then the extending mechanism 4 drives the rolling mechanism 5 to extend outward; then the rolling mechanism 5 is started to transport the material to the workstation conveyor line until the shooting switch 54 detects that the material has left; finally, the rolling mechanism 5 is retracted.

[0044] Finally, after completing the material transfer, the robot feeds back the task completion status to the scheduling system and receives the next task instruction.

[0045] During the entire operation process, the system uses multiple sensors to monitor the status of each mechanism in real time to ensure the safety and reliability of material transfer. The operator can view the robot's working status in real time through the touch screen and make necessary parameter adjustments.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Any innovative improvement or replacement based on the present invention shall fall within the scope of the claims of the present invention. At the same time, the various parameters, materials, and processes mentioned in the above embodiments are not exclusive. Without departing from the technical essence of the present invention, ordinary technicians in this field can make various alternatives, and these alternatives should also be considered to fall within the scope of protection of the present invention.

Claims

1. An intelligent material logistics robot for upstream and downstream workstations in a processing workshop, comprising a robot chassis, an electrical control cabinet, and a material conveyor. The electrical control cabinet is mounted on the robot chassis and is characterized by: The material conveyor includes an extending mechanism and a rolling mechanism. The extending mechanism includes a first linear module, a first motor and a first photoelectric switch. The first motor drives the first linear module to drive the rolling mechanism to reciprocate in the horizontal direction. The first photoelectric switch is arranged at both ends of the first linear module to detect the extending and retracting signals of the rolling mechanism; the rolling mechanism is arranged at the movable end of the first linear module and includes a conveying unit for conveying materials.

2. The intelligent logistics robot according to claim 1, characterized in that: The rolling mechanism further comprises a driving motor and a reducer, and the driving motor drives the conveying unit to operate via the reducer.

3. The intelligent logistics robot according to claim 2, characterized in that: The conveying unit includes a chain plate or a belt, and two ends of the conveying unit are provided with a radiation switch for detecting the position of the material.

4. The intelligent logistics robot according to claim 1, characterized in that: The material conveyor also includes a clamping mechanism, which includes a second linear module, a second motor and a clamping assembly. The fixed end of the second linear module is fixedly connected to the robot chassis. The second motor is arranged at the bottom of the second linear module and is used to drive the slider of the second linear module to move up and down. The clamping assembly is connected to the slider of the second linear module.

5. The intelligent logistics robot according to claim 4, characterized in that: The clamping assembly includes an upper plate, a movable lower plate, an optical axis, a linear bearing and a spring. The four corners of the upper plate are provided with mounting holes, the optical axis is vertically arranged in the mounting holes, the four corners of the movable lower plate are provided with through holes, and four linear bearings are respectively arranged in the through holes at the four corners of the movable lower plate. The movable lower plate is mounted on the optical axis through the linear bearing sleeve, and each optical axis is sleeved with a spring, and the two ends of the spring are respectively in contact with the lower surface of the upper plate and the upper surface of the movable lower plate.

6. The intelligent logistics robot according to claim 5, characterized in that: The pressing mechanism further includes a second photoelectric switch, which is arranged on the second linear module.

7. The intelligent logistics robot according to claim 1, characterized in that: The robot chassis includes driving wheels, universal wheels, a battery pack and a navigation device.

8. The intelligent logistics robot according to claim 1, characterized in that: A controller is provided in the electric control cabinet. The controller is electrically connected to the motor, the photoelectric switch, the drive motor and the beam switch respectively, and is used to control the coordinated action of the extending mechanism and the rolling mechanism.

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