Sheet metal assembling device

Abstract

The utility model discloses a sheet metal assembly device, including vacuum adsorption board, vacuum adsorption board is fixed in support seat through rotating shaft, one end of rotating shaft is connected with motor drive vacuum adsorption board rotation through bearing, vacuum adsorption board rotation action controls rotation range through limit axle, vacuum adsorption board bottom is provided with the even working surface for sticking sheet metal, and the periphery of working surface is equipped with a plurality of adsorption holes. The utility model discloses simple structure, reasonable in design adopts magnetic attraction and vacuum adsorption double positioning mode, and the rotation adaptation assembly requirement has solved the problem of difficult to grab and assemble caused by the warping of sheet, greatly improves production efficiency and assembly accuracy, improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal material handling technology in the production process of backlight modules, and in particular to a sheet metal assembly device. Background Technology

[0002] In the production of products such as backlight modules, thin sheet metal (typically 3-5mm thick) needs to be assembled onto die-cast parts. This process requires gripping the sheet metal; however, due to its thinness, the sheet metal is susceptible to slight deformation and warping from external factors before assembly. This significantly increases the difficulty of subsequent gripping operations, leading to inaccurate positioning and unstable gripping. This not only affects work efficiency but may also reduce the fit between the sheet metal and the die-cast part due to deformation, thus impacting the overall quality of the backlight product. Furthermore, the existing placement of the sheet metal during assembly is often unsuitable for the product structure, requiring angle adjustments, which further complicates assembly, causing inaccurate alignment and slowing down the process. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a sheet metal assembly device for gripping and correcting thin, warped sheet metal, which can simultaneously achieve efficient gripping, precise leveling, and multi-angle assembly of sheet metal, thereby improving work efficiency.

[0004] To achieve the above technical objectives and requirements, the technical solution adopted by this utility model is as follows: a sheet metal assembly device, including a vacuum adsorption plate, which is fixed in a support base by a rotating shaft. One end of the rotating shaft is connected to a motor via a bearing to drive the vacuum adsorption plate to rotate. The rotation range of the vacuum adsorption plate is controlled by a limiting shaft. The bottom of the vacuum adsorption plate is provided with a flat working surface for adhering to the sheet metal. Multiple adsorption holes are provided around the working surface for adsorbing the sheet metal by negative pressure and making it adhere to the working surface of the vacuum adsorption plate to achieve initial positioning. At least one magnetic adsorption module is provided on the vacuum adsorption plate, and several magnetic adsorption modules are arranged circumferentially around the working surface of the vacuum adsorption plate to generate magnetic force to adsorb the sheet metal for secondary positioning after being energized. The adsorption end faces of the magnetic adsorption modules are on the same plane as the working surface of the vacuum adsorption plate to position and straighten deformed sheet metal.

[0005] Preferably, the magnetic attraction module includes an electromagnet, with a clamping block on the upper side and a conduction shaft on the lower side. The electromagnet transmits magnetic force through the conduction shaft, and the end of the conduction shaft forms the adsorption end face. The clamping block is fixedly connected to the vacuum adsorption plate.

[0006] Preferably, it also includes a pressure cylinder for applying pressure after the sheet metal is positioned, so that it fits into the die-cast part.

[0007] Preferably, it also includes a control unit for controlling the power supply to and from the magnetic adsorption module and the air supply to and from the vacuum adsorption plate.

[0008] Preferably, the support base is provided with a support limiting seat positioning groove for fixing the limiting shaft and a rotating shaft positioning hole for fixing the rotating shaft.

[0009] Preferably, the positioning groove of the support limiting seat is configured as a stepped shape that matches the limiting shaft. The position of the limiting shaft is adjusted by the height of the step, thereby adjusting the rotation angle of the vacuum adsorption plate and adapting to sheet metal of different sizes.

[0010] Preferably, the positioning groove of the support limiting seat is set to an arc shape that matches the limiting shaft. The position of the limiting shaft is adjusted by the characteristics of the arc, thereby adjusting the rotation angle of the vacuum adsorption plate and adapting to sheet metal of different sizes.

[0011] Preferably, sensors are connected to the upper and lower surfaces of the limiting shaft, and several limiting blocks of different heights are also provided. The outer surface of the limiting blocks is covered with anti-collision pads to prevent scratches after the vacuum adsorption plate comes into contact with them. The rotation angle of the sheet metal is adjusted and controlled by the sensors and the limiting blocks of different heights to achieve the multi-angle assembly requirements of the sheet metal.

[0012] Compared with the traditional structure, the beneficial effects of this utility model are: 1. The rotation angle of the vacuum adsorption plate is controlled by the motor, sensor and limit block to realize the assembly of sheet metal at multiple angles (0°-360°). At the same time, the position of the limit block can be adjusted to adapt to sheet metal of different sizes.

[0013] 2. Employing a dual positioning method combining magnetic attraction and vacuum adsorption, the deformed sheet metal is first initially positioned by vacuum negative pressure. Then, the deformed sheet metal is further positioned by magnets on the vacuum adsorption plate, ensuring complete adsorption. Simultaneously, the magnetic attraction generates a strong traction and straightening force on the warped sheet metal, forcibly pulling it flat to the plane of the vacuum adsorption plate, ensuring complete adsorption and straightening. Finally, cylinder pressure is used to achieve sheet metal leveling, solving the gripping and assembly problems caused by thin sheet warping.

[0014] 3. By cooperating with the control unit, vision positioning system and pressurizing cylinder, a fully automated process from material picking, leveling, rotation, positioning to pressing is realized, which greatly improves production efficiency and assembly accuracy, and improves product quality. Attached Figure Description

[0015] Figure 1 This is the front view of the present utility model; Figure 2 for Figure 1 Top view; Figure 3 This is a schematic diagram of the magnetic suction module structure of this utility model; Figure 4 This is a schematic diagram of the support base of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the support base of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the structure of the limiting shaft of this utility model; In the diagram: 1. Vacuum adsorption plate, 1-1. Adsorption hole, 2. Sheet metal, 3. Magnetic adsorption module, 3-1. Pressing block, 3-2. Electromagnet, 3-3. Conducting shaft, 4. Motor, 5. Support base, 5-1. Support limit seat positioning groove, 5-2. Rotary shaft positioning hole, 6. Limiting shaft, 6-1. Sensor, 6-2. Limiting block, 6-3. Anti-collision pad, 7. Rotary shaft. Detailed Implementation

[0016] The present invention will be further described below.

[0017] See attached document Figures 1-2 A sheet metal assembly device includes a vacuum adsorption plate 1, which is fixed in a support base 5 by a rotating shaft 7. One end of the rotating shaft 7 is connected to a motor 4 via a bearing to drive the vacuum adsorption plate 1 to rotate. The rotation range of the vacuum adsorption plate 1 is controlled by a limiting shaft 6. The bottom of the vacuum adsorption plate 1 is provided with a flat working surface for adhering to sheet metal 3. Multiple adsorption holes 1-1 are provided around the working surface for adsorbing sheet metal 3 by negative pressure and making it adhere to the working surface of the vacuum adsorption plate 1 to achieve initial positioning. At least one magnetic adsorption module 3 is provided on the vacuum adsorption plate 1. Several magnetic adsorption modules 3 are arranged circumferentially around the working surface of the vacuum adsorption plate 1 to generate magnetic force to adsorb sheet metal 2 for secondary positioning after being powered on. The adsorption end faces of several magnetic adsorption modules 3 are on the same plane as the working surface of the vacuum adsorption plate 1 to position and straighten deformed sheet metal.

[0018] like Figure 3 As shown, the magnetic attraction module 3 includes an electromagnet 3-2. A pressing block 3-1 is provided on the upper side of the electromagnet 3-2, and a conduction shaft 3-3 is provided on the lower side. The electromagnet 3-2 transmits magnetic force through the conduction shaft 3-3. The end of the conduction shaft 3-3 forms the adsorption end face. The pressing block 3-1 is fixedly connected to the vacuum adsorption plate 1.

[0019] In this preferred embodiment, the sheet metal assembly device further includes a pressurizing cylinder for applying pressure after the sheet metal 2 is positioned, so that it fits against the die-cast component.

[0020] In this preferred embodiment, the sheet metal assembly device further includes a control unit for controlling the power supply to and from the magnetic adsorption module 3 and the air supply to and from the vacuum adsorption plate 1.

[0021] The support base 5 is provided with a support limiting seat positioning groove 5-1 for fixing the limiting shaft 6 and a rotating shaft 5-2 for fixing the rotating shaft 7.

[0022] like Figure 4 As shown, the positioning groove 5-1 of the support limiting seat is configured as a stepped shape to match the fixed limiting shaft 6. The position of the limiting shaft is adjusted by the height of the step, thereby adjusting the rotation angle of the vacuum adsorption plate and adapting to sheet metal of different sizes.

[0023] like Figure 5 As shown, the positioning groove 5-1 of the support limiting seat is set to an arc shape that matches the fixed limiting shaft 6. After adjusting the position of the limiting shaft 6 by the characteristics of the arc, it is fixed, thereby adjusting the rotation angle of the vacuum adsorption plate 1 and adapting to sheet metal 2 of different sizes.

[0024] like Figure 6 As shown, the upper and lower surfaces of the limiting shaft 6 are respectively equipped with sensors 6-1 and several limiting blocks 6-2 of different heights. The outer surface of the limiting blocks 6-2 is covered with anti-collision pads 6-3 to prevent the vacuum adsorption plate from being scratched after contact. The angle of the vacuum adsorption plate is controlled by adjusting the height of the sensors and limiting blocks. The vacuum adsorption plate drives the sheet metal to rotate, realizing the multi-angle assembly requirements of the sheet metal.

[0025] In practice, the control unit first activates a vacuum, and the negative pressure draws the sheet metal 2 onto the working surface of the vacuum adsorption plate 1 through the adsorption hole 1-1 for initial positioning and slight leveling. Since the deformed sheet metal may float, the electromagnet 3-2 is then energized, and the magnetic force acts on the warped sheet metal 2 through the conduction shaft 3-3. This utilizes the principle of magnetic attraction to forcibly grasp the deformed sheet metal, achieving secondary positioning and leveling. Because its end face is coplanar with the vacuum adsorption plate 1, the magnetic force forcibly pulls and flattens the warped periphery of the sheet metal 2, bringing it close to the working surface of the vacuum adsorption plate 1. Subsequently, after the sensor 6-1 detects the position of the vacuum adsorption plate 1, the rotation speed of the motor 4 is reduced until the vacuum adsorption plate 1 contacts the anti-collision pad 6-3. The sensor 6-1 then transmits the feedback information to the controller, achieving the required rotational adaptation of the sheet metal 2 to the assembly angle.

[0026] The entire device is then moved to a designated position above the die-cast part by the machine's vision positioning group. Adhesive tape mates with the sheet metal at the corresponding position on the die-cast part. After alignment, the control unit de-energizes and demagnetizes the electromagnet 3-2, simultaneously cutting off the vacuum to eliminate the suction force. Finally, the pressurizing cylinder actuates, applying downward pressure to firmly press the completely flattened sheet metal 2 onto the die-cast part, ensuring a tight fit between the sheet metal and the die-cast part, thus completing the assembly.

[0027] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. A sheet metal assembly device, characterized in that: The system includes a vacuum adsorption plate (1), which is fixed in the support base (5) by a rotating shaft (7). One end of the rotating shaft (7) is connected to a motor (4) via a bearing to drive the vacuum adsorption plate (1) to rotate. The rotation range of the vacuum adsorption plate (1) is controlled by a limiting shaft (6). The bottom of the vacuum adsorption plate (1) is provided with a flat working surface for fitting sheet metal (2). Multiple adsorption holes (1-1) are provided around the working surface for adsorbing sheet metal (2) by negative pressure and fitting it with the working surface of the vacuum adsorption plate (1) to achieve initial positioning. At least one magnetic adsorption module (3) is provided on the vacuum adsorption plate (1). Several magnetic adsorption modules (3) are arranged around the working surface of the vacuum adsorption plate (1) to generate magnetic force to adsorb sheet metal (2) for secondary positioning after being powered on. The adsorption end face of several magnetic adsorption modules (3) is on the same plane as the working surface of the vacuum adsorption plate (1) to position and straighten deformed sheet metal.

2. The sheet metal assembly device according to claim 1, characterized in that: The magnetic adsorption module (3) includes an electromagnet (3-2), a pressing block (3-1) is provided on the upper side of the electromagnet (3-2), and a conduction shaft (3-3) is provided on the lower side. The electromagnet (3-2) transmits magnetic force through the conduction shaft (3-3). The end of the conduction shaft (3-3) forms the adsorption end face. The pressing block (3-1) is fixedly connected to the vacuum adsorption plate (1).

3. The sheet metal assembly device according to claim 1, characterized in that: It also includes a pressurizing cylinder for applying pressure after the sheet metal (2) is positioned, so that it fits against the die-cast part.

4. The sheet metal assembly device according to claim 1, characterized in that: It also includes a control unit for controlling the power supply to and from the magnetic adsorption module (3) and the air supply to and from the vacuum adsorption plate (1).

5. The sheet metal assembly device according to claim 1, characterized in that: The support base (5) is provided with a support limiting seat positioning groove (5-1) for fixing the limiting shaft (6) and a rotating shaft positioning hole (5-2) for fixing the rotating shaft (7).

6. The sheet metal assembly device according to claim 5, characterized in that: The positioning groove (5-1) of the support and limiting seat is set in a stepped shape to match the limiting shaft (6).

7. A sheet metal assembly device according to claim 5, characterized in that: The positioning groove (5-1) of the support limiting seat is set to an arc shape that matches the limiting shaft (6).

8. The sheet metal assembly device according to claim 1, characterized in that: Sensors (6-1) are provided on the upper and lower surfaces of the limiting shaft (6), and several limiting blocks (6-2) of different heights are also provided. The outer surface of the limiting block (6-2) is covered with anti-collision pads (6-3).

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