A quick-change laser welding processing platform

Abstract

The utility model relates to a kind of laser welding processing platform of quick change, including platform section bar, the bottom of platform section bar is equipped with section bar support, section bar support is installed on the guide rail on rack below by slider and moves along left and right direction;Several independent magnet positioning units are installed on platform section bar, and magnet positioning unit includes magnet module installed on platform section bar and the magnet controller of control connection with above-mentioned magnet module.The utility model can realize quick change by independent magnet positioning unit, and change time drops substantially.The utility model is strong in compatibility, and is adapted to different workpieces by independent magnet positioning unit, without physical replacement module.

Description

Technical Field

[0001] This utility model relates to the technical field of laser welding of plate materials, and in particular to a laser welding processing platform with rapid changeover capability. Background Technology

[0002] Magnetic platforms are widely used in industrial automation, precision manufacturing, and electronic product assembly, especially in scenarios requiring rapid positioning, fixing, or changeover. In recent years, with the increasing demand for flexible manufacturing and intelligent manufacturing, traditional fixed magnetic platforms can no longer meet the needs of multi-variety, small-batch production.

[0003] A search revealed Chinese Patent Publication No. CN219403007U, which discloses a welding and positioning fixture for automotive door rings. The fixture includes a worktable and a fixture base. The fixture base is positioned in the center of the worktable, and it contains several door ring positioning cavities connected end-to-end. A partition groove is provided between adjacent door ring positioning cavities. Several clamping mechanisms are provided on the fixture base outside the door ring positioning cavities. A lifting hole is provided within each door ring positioning cavity, and a lifting mechanism is provided on the fixture base directly below the lifting hole. An adsorption mechanism is provided within the door ring positioning cavity on one side of the lifting hole. This invention allows for the direct placement of several workpieces within the door ring positioning cavities during workpiece positioning, resulting in a simple and precise positioning process. The external clamping mechanisms provide clamping. The adsorption mechanism facilitates bottom clamping of the positioned workpieces, and the processed workpieces can be lifted by the lifting mechanism for easy unloading.

[0004] Existing welding platforms have poor compatibility and cannot be quickly changed to adapt to the processing of workpieces of different specifications or models.

[0005] In view of the above-mentioned shortcomings, the designer has actively researched and innovated in order to create a laser welding processing platform with rapid changeover capabilities, making it more valuable for industrial applications. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a laser welding processing platform with rapid model changeover.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A quick-change laser welding processing platform includes a platform profile, a profile support mounted on the bottom of the platform profile, and the profile support moving left and right along a guide rail mounted on the frame below via a slider.

[0009] Several independent magnet positioning units are installed on the platform profile. Each magnet positioning unit includes a magnet module installed on the platform profile and a magnet controller that is connected to the magnet module.

[0010] A sensor is installed on one side of the bottom of the platform profile, and a limit switch adapted to the aforementioned sensor is installed on the frame on one side of the guide rail.

[0011] At least one material sensor is installed on the platform profile.

[0012] As a further improvement of this utility model, a tank chain connected to the frame is installed at the bottom of the platform profile.

[0013] As a further improvement of this utility model, a number of support columns for supporting the workpiece are evenly installed on the platform profile.

[0014] As a further improvement of this utility model, the support column is a nylon column structure, and a smooth spherical structure is provided at the top of the support column.

[0015] As a further improvement of this utility model, a groove for placing wires is provided on the platform profile on one side of the magnet positioning unit.

[0016] As a further improvement of this utility model, a magnetic shielding layer is installed on each magnet module.

[0017] As a further improvement of this utility model, a magnetic shielding layer is installed on the platform profile between two adjacent magnet modules.

[0018] By means of the above solution, this utility model has at least the following advantages:

[0019] This invention enables rapid shape change through an independent magnet positioning unit, significantly reducing shape change time.

[0020] This invention has strong compatibility. Through an independent magnetic positioning unit, it can be adapted to different workpieces without the need for physical module replacement.

[0021] The operation method of this utility model is relatively energy-saving and environmentally friendly.

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of a laser welding processing platform for rapid model change according to this utility model;

[0025] Figure 2 yes Figure 1 Internal structure diagram of the platform profile;

[0026] Figure 3 yes Figure 1 The main view.

[0027] The meanings of the labels in the figures are as follows.

[0028] Platform profile 1, guide rail 2, tank chain 3, magnet positioning unit 4, support column 5, wire groove 6, profile bracket 7, slider 8, sensor 9, limit switch 10, material sensor 11. Detailed Implementation

[0029] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] The first embodiment of this utility model:

[0032] like Figures 1-3The present invention provides a quick-change laser welding processing platform, which mainly includes a frame, a platform profile 1, a guide rail 2 and a magnet positioning unit 4. A tank chain 3 connected to the frame is installed at the bottom of the platform profile 1.

[0033] like Figure 3 The guide rail 2 is mounted on the frame in the left-right direction. The profile support 7 at the bottom of the platform profile 1 for placing the workpiece moves in the left-right direction on the guide rail 2 via the slider 8. The platform profile 1 can complete the above-mentioned movement process by being driven by an external drive mechanism or a manual mechanism. The drive mechanism can be a motor screw structure, etc., and the manual mechanism can be a handwheel screw structure, etc.

[0034] like Figure 2 Several independently controlled magnet positioning units 4 are installed on the platform profile 1. Each magnet positioning unit 4 includes a magnet module installed on the platform profile 1 and a magnet controller that is connected to the magnet module.

[0035] The following describes the working structure and working principle of one type of magnet module and magnet controller:

[0036] 1. The magnet module mainly includes:

[0037] 1) Electromagnetic coil: made of enameled copper wire, the number of turns and wire diameter are designed according to the attraction force requirements (e.g. when the attraction force is ≥500N, the coil resistance is about 5Ω and the rated voltage is 24V).

[0038] 2) Magnetic conductor: Made of stacked high-permeability silicon steel sheets to form a magnetic yoke structure, which concentrates magnetic lines of force and guides them to the adsorption surface.

[0039] 3) Magnetic shielding layer: Non-magnetic materials (such as epoxy resin or stainless steel) are embedded at the edge of the magnet module to avoid magnetic field interference between adjacent modules.

[0040] Specifically, a magnetic shielding layer can be installed on each magnet module; or a magnetic shielding layer can be installed on the platform profile 1 between two adjacent magnet modules.

[0041] 4) Adsorption surface: The surface is nickel-plated to improve wear resistance and corrosion resistance. The flatness of the adsorption surface is ≤0.05mm to ensure close contact with the workpiece to be processed.

[0042] The module housing is made of aluminum alloy profile, and the inside is filled with thermally conductive silicone to achieve heat dissipation and mechanical fixation of the electromagnetic coil.

[0043] 2. The circuit module of the magnet controller mainly includes:

[0044] 1) Power Management Unit: Input AC220V, converted to DC24V / 5V by switching power supply to power the electromagnetic coil and control chip.

[0045] 2) Microcontroller (MCU): It adopts the STM32F103 series chip, with built-in SPI / I2C interface, and supports multi-module cascade communication.

[0046] 3) Power drive circuit: Use MOSFET power transistors (such as IRF540N) to control the on and off of the electromagnetic coil, and connect a reverse parallel freewheeling diode (such as 1N4007) to eliminate the back electromotive force when turning off.

[0047] 4) Signal conditioning module: Input: proximity switch signal (NPN / PNP type, 3-24V compatible), sheet metal sensor pulse signal (5V TTL); Output: magnet status indicator (red = magnetization, green = demagnetization), fault alarm relay contact.

[0048] 5) Interface design: Aviation plug: includes power interface (2 pins), communication interface (4 pins, supporting RS485 or CAN bus), and sensor input interface (3 pins).

[0049] 3. The working principle of the above-mentioned magnet module and magnet controller:

[0050] 1) Magnetization process: The MCU receives the main controller instruction via the SPI bus, parses the target module address and action type (magnetization); the corresponding module's MOSFET is turned on, the DC 24V power supply is applied to the electromagnetic coil, generating an excitation current (e.g., 4.8A), the silicon steel magnetic conductor is magnetized, and a strong magnetic field (magnetic induction intensity ≥1.2T) is formed on the adsorption surface; the freewheeling diode is reverse cut off when it is turned on, which does not affect the current output; the delay module starts the timer (e.g., preset 0.3 seconds) to ensure that the magnetic field is stably established.

[0051] 2) Demagnetization process: The MCU sends a demagnetization command, the MOSFET turns off, the coil current drops sharply, generating a reverse induced electromotive force; the freewheeling diode turns on, providing a discharge circuit for the coil, dissipating the magnetic field energy as heat (through the current limiting resistor), avoiding high voltage impact on the circuit; after demagnetization is completed (the magnetic field decays to less than 1% of the initial value), the MCU sends a "demagnetization complete" signal to the main controller.

[0052] 3) Master-Slave Communication Architecture: The master controller (PLC or industrial computer) polls each magnet controller via a bus protocol (such as Modbus RTU) and issues global configurations such as the target sheet quantity and delay parameters. The slave controller (a single magnet module) independently executes local logic. That is, when the material sensor 11 detects a plate-shaped workpiece, the counter increments by 1. When the HMI preset value is reached, a "ready" signal is sent to the master controller. After receiving the "magnetize" command from the master controller, the magnet module at the corresponding position is activated only according to the position signal detected by the limit switch 10 (such as the sensor 9 at X=100mm).

[0053] 4) By using the delay adjustment function, adjacent magnet modules are magnetized in sequence (e.g., module 1 is magnetized → delay 0.2 seconds → module 2 is magnetized), avoiding uneven adsorption force caused by magnetic field superposition.

[0054] 5) In addition, an RC absorption circuit (such as 100Ω + 0.1μF) can be connected in parallel across the coil to suppress high-frequency noise; the controller housing is grounded and the signal cable uses twisted-pair shielded cable to reduce spatial electromagnetic coupling interference.

[0055] Several support columns 5 are evenly installed on the platform profile 1 to support the workpiece. The support columns 5 are nylon column structures, and a smooth spherical structure is provided at the top of the support columns 5. The support columns 5 provide the most basic support for the workpiece.

[0056] A wire groove 6 for placing wires is provided on the platform profile 1 on one side of the magnet positioning unit 4. At least one material sensor 11 is installed on the platform profile 1 for sensing the workpiece.

[0057] like Figure 3 A sensor 9 is installed on one side of the bottom of the platform profile 1, and a limit switch 10 adapted to the sensor 9 is installed on the frame on one side of the guide rail 2. The sensor 9 and the limit switch 10 are adapted to the magnetic positioning unit 4.

[0058] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A quick-change laser welding processing platform, comprising a platform profile (1), wherein a profile support (7) is installed at the bottom of the platform profile (1), and the profile support (7) moves along the left and right direction on a guide rail (2) mounted on the frame below via a slider (8); Its features are: Several independent magnet positioning units (4) are installed on the platform profile (1). The magnet positioning unit (4) includes a magnet module installed on the platform profile (1) and a magnet controller that is controlled and connected to the magnet module. A sensor (9) is installed on one side of the bottom of the platform profile (1), and a limit switch (10) adapted to the sensor (9) is installed on the frame on one side of the guide rail (2). At least one material sensor (11) is installed on the platform profile (1).

2. The rapid changeover laser welding processing platform as described in claim 1, characterized in that, A tank chain (3) connected to the frame is installed at the bottom of the platform profile (1).

3. The laser welding processing platform for rapid changeover as described in claim 1, characterized in that, Several support columns (5) for supporting the workpiece are evenly installed on the platform profile (1).

4. The laser welding processing platform for rapid changeover as described in claim 3, characterized in that, The support column (5) is a nylon column structure, and a smooth spherical structure is provided on the top of the support column (5).

5. The laser welding processing platform for rapid changeover as described in claim 1, characterized in that, A wire groove (6) for placing wires is provided on the platform profile (1) on one side of the magnet positioning unit (4).

6. The laser welding processing platform for rapid changeover as described in claim 1, characterized in that, A magnetic shielding layer is installed on each of the magnet modules.

7. The laser welding processing platform for rapid changeover as described in claim 1, characterized in that, A magnetic shielding layer is installed on the platform profile (1) between two adjacent magnet modules.

Images