Multi-vehicle type recognition precision positioning warehouse

Abstract

The utility model belongs to the automobile manufacturing technical field, concretely relates to a kind of accurate positioning warehouse of multi-vehicle type identification, comprising: bottom square tube frame, its bottom is equipped with the positioning pin and side guide plate for material frame positioning;Vehicle type identification module, at least 4 vehicle type identification detection sensors are horizontally arranged in the middle of warehouse, and the trigger state of each photoelectric detection switch is corresponded to different vehicle types by binary combination logic;Plate presence / absence detection module, including plate presence / absence state sensor respectively arranged at the front side and rear side edge angle of warehouse bottom, and the warehouse bottom plate is provided with light-transmitting hole at corresponding position.This patent eliminates manual switching operation through the automatic accurate identification of multi-vehicle type material frame.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically relating to a precision positioning material library for multi-model recognition. Background Technology

[0002] As automobile manufacturing moves towards multi-variety, small-batch production, OEMs are increasingly demanding greater flexibility in their welding production lines. Precision positioning material bins, as a key component of automated production lines, play a crucial role in the accurate loading of sub-assembly parts. Currently, the industry's common technical solution involves adding a shared unit to the same material bin to accommodate multiple vehicle models. This solution has the following significant drawbacks: the shared unit must be compatible with different vehicle model parts, leading to increased redundancy in the material bin structure and extremely high processing precision requirements; different vehicle model parts are placed differently in the material bin, making it difficult for the shared positioning mechanism to guarantee repeatability across all models; adding a new vehicle model requires redesigning the material bin and positioning structure, resulting in long on-site debugging cycles and high costs; existing material bins lack automatic vehicle model recognition and material bin placement detection functions, relying on manual confirmation, which can easily lead to mixed-assembly accidents.

[0003] Especially in multi-model mixed production scenarios, existing technologies require frequent switching of material frames or manual intervention in model selection, which severely restricts production cycle time and cannot meet the core requirements of intelligent manufacturing for flexibility and automation. Utility Model Content

[0004] The purpose of this invention is to provide a precise positioning library for multi-vehicle recognition, so as to solve the problems existing in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-vehicle model recognition precision positioning material library, comprising:

[0006] The bottom square tube frame has a positioning pin and a side guide plate for positioning the material frame.

[0007] The vehicle model recognition module consists of at least four vehicle model recognition and detection sensors arranged horizontally in the middle of the material warehouse. The trigger state of each photoelectric detection switch corresponds to different vehicle models through binary combination logic.

[0008] The panel presence detection module includes panel presence status sensors located at the front and rear corners of the bottom of the silo, with light-transmitting holes at corresponding positions on the silo bottom plate.

[0009] Preferably, the plate has a status sensor coaxially arranged with the light-transmitting hole of the material storage bottom plate to form a vertical detection optical path.

[0010] Preferably, the bottom square tube frame is welded with two side square tube frames and positioning guide plates on both sides.

[0011] The beneficial effects of this utility model are: 1. Automatic and accurate identification of multi-model material frames, eliminating manual switching operations; 2. Real-time error prevention verification of material frame height and model, avoiding mixed assembly accidents; 3. Dual-point redundant detection of panel status, improving detection reliability, and ultimately achieving fully automatic loading and unloading of sub-assembly parts in the welding production line, significantly shortening the debugging cycle of new models by more than 50%. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a perspective view of the present invention from another direction. Detailed Implementation

[0014] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0015] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0018] like Figures 1-2 As shown, the present utility model discloses as follows: Figure 1As shown, the precision positioning hopper consists of a bottom square tube frame 1 and two side square tube frames 5 welded together to form a U-shaped load-bearing structure. Four tapered positioning pins 2 are mounted on the bottom frame along four axes. The pins have a diameter of Φ20mm and a height of 50mm, and are clearance-fitted with the positioning holes at the bottom of the hopper (fitting tolerance H7 / g6). Side guide plates 3 with an inclination angle of 15° are welded to both sides at the entrance, and their ends connect to horizontally positioned positioning guide plates 4, forming a progressive sliding channel.

[0019] A bracket is horizontally welded and installed in the middle of the material storage area. Four vehicle model recognition and detection sensors (model Omron E3Z-D81) are installed at equal intervals at a height of 600mm above the ground, with a detection distance of 1m. The switches are spaced 150mm apart, with their transmitters facing the direction of material frame movement. A detachable recognition plate is fixed to the side wall of the material frame. The recognition plate has a pre-set array of light-transmitting holes at different positions to block specific photoelectric switches.

[0020] A first plate presence / absence sensor 6 is installed at the front corner of the bottom of the material storage silo, and a second plate presence / absence sensor 7 is installed at the rear corner of the bottom of the material storage silo.

[0021] Working principle

[0022] 1. Vehicle model recognition process

[0023] The material frame slides into the material hopper along the side guide plate 3, and is positioned with the assistance of the positioning guide plate 4.

[0024] The vehicle model recognition and detection sensor 8 detects the features of the recognition plate installed in the middle of the material frame;

[0025] The output signals of multiple vehicle model identification and detection sensors 8 are combined to form a binary code, which is then decoded by the PLC to determine the vehicle model.

[0026] 2. Material frame arrival detection process

[0027] The inlet column reflective sensor detects whether the material frame has reached the predetermined station;

[0028] The size of the material frame (e.g., small / medium / large) is determined by different height sensors.

[0029] If the detection height does not match the vehicle model code, an error prevention alarm will be triggered.

[0030] 3. Does the panel have an inspection process?

[0031] The presence or absence of the first plate sensor 6 and the presence or absence of the second plate sensor 7 simultaneously emit detection beams.

[0032] The beam of light is directed toward the material frame through pre-set holes in the bottom plate of the silo.

[0033] If the board is present, the light beam is blocked, and the sensor outputs a low level; if it is missing, the reflected light beam is received, and the sensor outputs a high level.

[0034] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A precision positioning material library for multi-vehicle recognition, characterized in that, include: The bottom square tube frame (1) is provided with a positioning pin (2) for positioning the material frame and a side guide plate (3) at the bottom. The vehicle model recognition module consists of at least four vehicle model recognition and detection sensors (8) arranged horizontally in the middle of the material warehouse. The trigger state of each photoelectric detection switch corresponds to different vehicle models through binary combination logic. The panel presence detection module includes panel presence status sensors located at the front and rear corners of the bottom of the silo, with light-transmitting holes at corresponding positions on the silo bottom plate.

2. The precision positioning hopper according to claim 1, characterized in that: The plate has a status sensor coaxially arranged with the light-transmitting hole of the material storage bottom plate to form a vertical detection optical path.

3. The precision positioning hopper according to claim 1, characterized in that: The bottom square tube frame is welded to two sides with two square tube frames (5) and positioning guide plates (4).

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