A laser positioning device for the interface between an elevator and a conveyor
By combining laser reflection and array receiving technology with PLC control, the problem of insufficient positioning accuracy at the connection between the elevator and the conveyor line is solved, realizing high-precision and seamless connection between the elevator and the conveyor line, ensuring the smooth, accurate and efficient transfer of materials at the junction point.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUANSHUO MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-04
AI Technical Summary
The existing positioning methods at the connection between the elevator and the conveyor line have problems such as easy wear of mechanical limit switches, inability of limit switches to detect continuous deviations, and low efficiency of manual visual inspection, resulting in insufficient positioning accuracy and difficulty in ensuring the stability and safety of materials during dynamic handover.
By combining high-sensitivity laser reflection and array receiving technology with PLC control, dynamic, real-time, and high-precision spatial position closed-loop detection and automatic correction between the hoist and the conveyor line are realized. Through the cooperation of the laser reflector and the receiver array board, the position deviation of the hoist is corrected in real time, and the PLC is used for rapid calculation and control.
It achieves high-precision, seamless connection between the elevator and the conveyor line, ensuring stable, accurate, and efficient material transfer at the junction point, reducing accumulated errors and adjustment time, and avoiding collisions and jams.
Smart Images
Figure CN224590013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of equipment positioning device technology, and in particular to a laser positioning device at the connection between a hoist and a conveyor line. Background Technology
[0002] The positioning of the connection between the elevator and the conveyor line is crucial for material transfer. Precise spatial alignment can prevent equipment collisions, jamming, or material falling, ensuring that materials flow smoothly, continuously, and efficiently during dynamic handover, and guaranteeing the safe and stable operation of the automated production line.
[0003] In existing technologies, the connection and positioning of the hoist and the conveyor line often rely on mechanical limit devices, limit switches, or manual visual adjustment, which has significant shortcomings: mechanical hard limiters are prone to structural deformation or wear due to long-term collisions, resulting in a gradual decrease in positioning accuracy and the inability to adaptively compensate; limit switch sensors can only provide discrete position signals and cannot detect continuous offsets and angular deviations, requiring repeated start-stop adjustments; manual visual positioning is inefficient and greatly affected by subjective factors, making it difficult to guarantee millimeter-level accuracy requirements. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a laser positioning device at the junction of the elevator and the conveyor line. Utilizing highly sensitive laser reflection and array receiving technology, combined with the rapid calculation and control capabilities of a PLC, it achieves dynamic, real-time, and high-precision closed-loop detection and automatic correction of the spatial position between the elevator and the conveyor line. This ensures that materials can be transferred smoothly, accurately, and efficiently at the junction, alleviating problems such as large cumulative errors, long adjustment times, and susceptibility to collisions or jamming that exist in traditional mechanical limiters or manual visual positioning methods.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a laser positioning device at the connection between a hoist and a conveyor line, comprising an integrated PLC controller and a reflector, wherein an electromagnetic chuck is provided on one side of the integrated PLC controller, and a laser receiver array plate is provided on the side of the integrated PLC controller away from the electromagnetic chuck, and a laser body is connected to the side of the integrated PLC controller where the laser receiver array plate is located via a laser bracket;
[0006] The reflector includes a base, a universal joint sleeve is provided on one side of the base, a universal joint rod is fitted inside the universal joint sleeve, an arc-shaped threaded sleeve is threaded to the outside of the universal joint sleeve, and a laser reflector plate is installed on the end of the universal joint rod away from the universal joint sleeve.
[0007] The laser bracket includes a support, on which two symmetrically arranged bearing seats 1 are provided. Each of the two bearing seats 1 is bolted to a bearing seat 2. The two bearing seats 2 are respectively fixed to opposite sides of the middle frame. Bearing seats 3 are installed on the other two sides of the middle frame. Each of the bearing seats 3 is bolted to a bearing seat 4. The two bearing seats 4 are respectively fixed to the two sides of the mounting base. The mounting base is fixedly connected to the laser body.
[0008] In one preferred embodiment, the electromagnetic chuck is attached to the frame of the conveyor line, the base is mounted on the lifting structure of the hoist, and the laser emitted by the laser body is reflected onto the laser receiver array plate by the laser reflector.
[0009] In a preferred embodiment, the integrated PLC controller is composed of an electromagnet control module, a laser control module, a signal transmission module, and a power control module. The laser body is connected to the laser signal output section of the laser control module of the integrated PLC controller, and the laser receiver array board is connected to the laser signal receiving section of the laser control module of the integrated PLC controller.
[0010] In a preferred embodiment, the laser receiver array board is composed of multiple laser signal receiver arrays arranged together, with each laser signal receiver corresponding to a number.
[0011] In a preferred embodiment, the middle frame is fitted into the support.
[0012] In a preferred embodiment, the mounting base is fitted within the middle frame.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] This invention utilizes high-sensitivity laser reflection and array receiving technology, combined with the rapid calculation and control capabilities of PLC, to achieve dynamic, real-time, and high-precision closed-loop detection and automatic correction of the spatial position between the hoist and the conveyor line. This ensures that materials can be transferred smoothly, accurately, and efficiently at the junction of the two, alleviating the problems of large cumulative error, long adjustment time, and easy collision or jamming that exist in traditional mechanical limit or manual visual positioning methods.
[0015] Furthermore, the design of this utility model allows operators to perform precise and independent multi-dimensional spatial attitude calibration of the reflection angle of the laser reflector and the emission angle of the laser body according to the on-site installation conditions. After calibration, the laser beam path is tightened with a threaded sleeve and locked with a bolt to form a rigid connection without displacement, thereby ensuring that the laser beam path maintains a precise spatial position relationship for a long time under complex industrial environments such as vibration and temperature difference. Attached Figure Description
[0016] Figure 1 A schematic diagram of the structure of a laser positioning device at the connection between a hoist and a conveyor line provided by this utility model.
[0017] Figure 2 A schematic diagram of the reflector structure of a laser positioning device at the connection between a hoist and a conveyor line provided by this utility model.
[0018] Figure 3 A schematic diagram of the front structure of the laser bracket of a laser positioning device at the connection between a hoist and a conveyor line provided by this utility model.
[0019] Figure 4 This is a schematic diagram of the back structure of the laser bracket of a laser positioning device at the connection between a hoist and a conveyor line, provided by this utility model.
[0020] Figure 5 A schematic diagram of the front structure of the laser bracket after adjustment of the laser positioning device at the connection between the elevator and the conveyor line provided by this utility model.
[0021] Figure 6 A schematic diagram of the back structure of the laser bracket after adjustment for a laser positioning device at the connection between a hoist and a conveyor line provided by this utility model.
[0022] Legend:
[0023] 1. Integrated PLC controller; 2. Electromagnetic chuck; 3. Laser receiver array board; 4. Laser bracket; 5. Laser body; 6. Reflector;
[0024] 41. Support; 42. Shaft support one; 43. Shaft support two; 44. Middle frame; 45. Shaft support three; 46. Shaft support four; 47. Mounting base;
[0025] 61. Base; 62. Universal joint sleeve; 63. Arc-shaped threaded sleeve; 64. Universal joint rod; 65. Laser reflector. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1
[0028] like Figures 1 to 6As shown, this utility model provides a technical solution: a laser positioning device at the connection between a hoist and a conveyor line, including an integrated PLC controller 1 and a reflector 6. An electromagnetic suction plate 2 is provided on one side of the integrated PLC controller 1, and a laser receiver array plate 3 is provided on the side of the integrated PLC controller 1 away from the electromagnetic suction plate 2. A laser body 5 is connected to the side of the integrated PLC controller 1 where the laser receiver array plate 3 is located through a laser bracket 4. The reflector 6 includes a base 61, and a universal bushing 62 is provided on one side of the base 61. The universal bushing 62 is connected to a laser reflector plate 65 through a universal shaft 64. The laser bracket 4 includes a support 41, and a mounting base 47 is connected to the support 41 through a middle frame 44. The mounting base 47 is fixedly connected to the laser body 5.
[0029] Among them, the electromagnetic suction plate 2 is attached to the frame of the conveyor line, the base 61 is installed on the lifting structure of the hoist, and the laser emitted by the laser body 5 is reflected by the laser reflector plate 65 to the laser receiver array plate 3.
[0030] Furthermore, the integrated PLC controller 1 is composed of an electromagnet control module, a laser control module, a signal transmission module, and a power control module. The laser body 5 is connected to the laser signal output section of the laser control module of the integrated PLC controller 1, and the laser receiver array board 3 is connected to the laser signal receiving section of the laser control module of the integrated PLC controller 1.
[0031] Moreover, the laser receiver array board 3 is composed of multiple laser signal receiver arrays, with each laser signal receiver corresponding to a number.
[0032] In this embodiment, the laser beam emitted by the laser body 5 is reflected by the laser reflector 65 of the reflector 6 mounted on the hoist structure and then precisely projected onto the laser receiver array board 3 on the integrated PLC controller 1. When the hoist moves to the connection position with the target of the conveyor line, if the two are perfectly aligned, the light spot reflected by the laser body 5 will stably illuminate a specific area of the laser receiver array board 3. If there is a positional deviation, the light spot will shift on the laser receiver array board 3, which is composed of numerous independently numbered laser signal receivers. The specific receiver number and its... The position information is fed back to the laser signal receiving section of the integrated PLC controller 1 in real time. The processing module integrated inside the integrated PLC controller 1 accurately calculates the offset and angular deviation of the hoist relative to the conveyor line in the horizontal and vertical directions by analyzing the trigger status and number of these receivers. These real-time calculated position data are output through the signal transmission module and can be directly used to control the drive system of the hoist, driving the hoist to perform precise fine-tuning movements until the light spot returns to the preset area of the laser receiver array plate 3. At this time, it indicates that the hoist has accurately reached the predetermined position for seamless connection with the conveyor line.
[0033] This invention utilizes high-sensitivity laser reflection and array receiving technology, combined with the rapid calculation and control capabilities of PLC, to achieve dynamic, real-time, and high-precision closed-loop detection and automatic correction of the spatial position between the hoist and the conveyor line. This ensures that materials can be transferred smoothly, accurately, and efficiently at the junction of the two, alleviating the problems of large cumulative errors, long adjustment time, and easy collisions or jamming that exist in traditional mechanical limit or manual visual positioning methods.
[0034] Example 2
[0035] like Figures 1 to 6 As shown, a universal sleeve 62 is provided on one side of the base 61, a universal shaft 64 is fitted inside the universal sleeve 62, an arc-shaped threaded sleeve 63 is threaded to the outside of the universal sleeve 62, and a laser reflector 65 is installed on the end of the universal shaft 64 away from the universal sleeve 62.
[0036] Furthermore, the support 41 is provided with two symmetrically arranged bearing seats 42. Both bearing seats 42 are bolted to bearing seats 43. The two bearing seats 43 are fixed to the opposite sides of the middle frame 44. The middle frame 44 is fitted into the support 41. Bearing seats 45 are installed on the other two sides of the middle frame 44. Bearing seats 46 are bolted to the other two sides of the middle frame 44. The two bearing seats 46 are fixed to the two sides of the mounting base 47. The mounting base 47 is fitted into the middle frame 44. The mounting base 47 is fixedly connected to the laser body 5.
[0037] In this embodiment, the reflector 6 part forms a basic universal joint structure through the fitting of the universal sleeve 62 and the universal shaft 64, allowing the laser reflector 65 to deflect at multiple angles around the axis. The arc-shaped threaded sleeve 63, fitted on the outside of the universal sleeve 62, generates radial pressure through the threaded advancement, directly squeezing the elastic wall of the universal sleeve 62 to make it contract inward, thereby locking the internal universal shaft 64 and achieving a one-time rigid fixation of the angle of the laser reflector 65. The laser bracket 4 adopts a double-layer nested adjustment mechanism. The support 41 is connected to the middle frame 44 by bolts through two sets of symmetrical bearing seats 1 42 and bearing seats 2 43, allowing the middle frame 44 to tilt or deflect horizontally relative to the support 41. The middle frame 44 is further connected to bearing seats 3 on the other two sides. The bolted connection between the 45 and the bearing 46 and the mounting base 47 allows the mounting base 47 to be adjusted at a secondary angle independently of the middle frame 44. The angle adjustment and locking of the two-level four sets of bearings are achieved by tightening and loosening the bolts. The design of the middle frame 44 and the mounting base 47 being respectively fitted into the support 41 and the middle frame 44 ensures the structural stability during the adjustment process. This design allows the operator to perform fine and independent multi-dimensional spatial attitude calibration of the reflection angle of the laser reflector 65 and the emission angle of the laser body 5 according to the on-site installation conditions. After calibration, the threaded sleeve is tightened and the bolts are locked to form a rigid connection without displacement, thereby ensuring that the laser beam path maintains a precise spatial position relationship for a long time in complex industrial environments such as vibration and temperature difference.
[0038] Working principle:
[0039] like Figures 1 to 6 As shown, the laser beam emitted by the laser body 5 is precisely reflected by the laser reflector plate 65 of the reflector 6 on the hoist structure and then projected onto the laser receiver array plate 3 on the integrated PLC controller 1 on the conveyor line side. The universal bushing 62 and universal shaft 64 of the reflector 6 are fitted together with the outer arc-shaped threaded sleeve 63, which enables the laser reflector plate 65 to have multi-angle free adjustment capability. Tightening the arc-shaped threaded sleeve 63 can compress the bushing to elastically deform and lock the shaft, thereby achieving rigid fixation of the reflection angle. In the double-layer adjustment mechanism of the laser bracket 4, the support 41 and the middle frame 44 are connected by bolts of symmetrical shaft seat group to achieve the first layer of pitch / level adjustment. The middle frame 44 and the mounting base 47 are connected by another set of shaft seats to achieve the second layer of independent angle fine adjustment. Both nested structures are calibrated and locked by tightening and loosening bolts.
[0040] When the elevator moves to the target position, if it is perfectly aligned with the conveyor line, the reflected light spot will stably cover the preset area of the laser receiver array plate 3. If there is a deviation, the light spot will deviate to a specific numbered receiver at the edge of the laser receiver array plate 3. The laser receiver array plate 3 transmits the receiver number signal corresponding to the light spot position to the integrated PLC controller 1 in real time. Its built-in processing module analyzes the number data, accurately calculates the position deviation of the elevator in three-dimensional space, and outputs control signals to drive the elevator actuator to perform dynamic fine-tuning until the light spot returns to the preset area of the array center. At this time, the elevator and the conveyor line are precisely connected. The whole system ensures the long-term stability of the laser light path through lockable precision mechanical adjustment. Combined with array-type light spot positioning and PLC closed-loop control, it realizes high-precision, adaptive real-time alignment of the connection position between the elevator and the conveyor line, reduces manual intervention and mechanical cumulative error, and ensures that materials are transferred between the two devices with low collision rate and no jamming under complex working conditions.
[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A laser positioning device at the junction of a hoist and a conveyor line, characterized in that, The system includes an integrated PLC controller (1) and a reflector (6). An electromagnetic chuck (2) is provided on one side of the integrated PLC controller (1). A laser receiver array plate (3) is provided on the side of the integrated PLC controller (1) away from the electromagnetic chuck (2). A laser body (5) is connected to the side of the integrated PLC controller (1) where the laser receiver array plate (3) is located via a laser bracket (4). The reflector (6) includes a base (61), a universal sleeve (62) is provided on one side of the base (61), a universal shaft (64) is fitted inside the universal sleeve (62), an arc-shaped threaded sleeve (63) is threaded to the outside of the universal sleeve (62), and a laser reflector (65) is installed on the end of the universal shaft (64) away from the universal sleeve (62). The laser bracket (4) includes a support (41), on which two symmetrically arranged bearing seats (42) are provided. Both bearing seats (42) are bolted to bearing seats (43). The two bearing seats (43) are fixed on opposite sides of the middle frame (44). Bearing seats (45) are installed on the other two sides of the middle frame (44). Bearing seats (45) are bolted to bearing seats (46). The two bearing seats (46) are fixed on opposite sides of the mounting base (47). The mounting base (47) is fixedly connected to the laser body (5).
2. The laser positioning device at the connection between the hoist and the conveyor line according to claim 1, characterized in that: The electromagnetic suction plate (2) is attached to the frame of the conveyor line, the base (61) is installed on the lifting structure of the hoist, and the laser emitted by the laser body (5) is reflected by the laser reflector plate (65) onto the laser receiver array plate (3).
3. The laser positioning device at the connection between the hoist and the conveyor line according to claim 1, characterized in that: The integrated PLC controller (1) is composed of an electromagnet control module, a laser control module, a signal transmission module and a power control module. The laser body (5) is connected to the laser signal output part of the laser control module of the integrated PLC controller (1), and the laser receiver array board (3) is connected to the laser signal receiving part of the laser control module of the integrated PLC controller (1).
4. The laser positioning device at the connection between the hoist and the conveyor line according to claim 1, characterized in that: The laser receiver array board (3) is composed of multiple laser signal receiver arrays arranged together, with each laser signal receiver corresponding to a number.
5. A laser positioning device at the connection between a hoist and a conveyor line according to claim 1, characterized in that: The middle frame (44) is fitted into the support (41).
6. A laser positioning device at the connection between a hoist and a conveyor line according to claim 1, characterized in that: The mounting base (47) is fitted into the middle frame (44).