Adsorption loading equipment suitable for processing vehicle-mounted sound production units

Abstract

This utility model relates to an adsorption loading device suitable for processing vehicle-mounted sound units. It includes a mounting bracket with a lateral displacement adjustment device mounted on it. One side of the lateral displacement adjustment device is connected to a mounting base, and a rotation adjustment device is mounted on the mounting base. A load-bearing device is mounted on the rotation adjustment device. A conduction control device is also mounted on the mounting base. The load-bearing device has several adsorption holes distributed on it, and the conduction control device is conductively connected to the adsorption holes. The rotation adjustment device includes a servo motor with a drive wheel mounted on it. A drive shaft is mounted below the load-bearing device, and a driven wheel is connected to the drive shaft. A transmission belt is fitted between the drive wheel and the driven wheel. Thus, relying on a sealing O-ring, air leakage is effectively prevented during adsorption to ensure stable adsorption force. Simultaneously, a laser sensor on the guide plate can detect the workpiece adsorption status in real time and promptly provide feedback signals indicating whether the workpiece has reached its position or detached.

Description

Technical Field

[0001] This utility model relates to a loading device, and more particularly to an adsorption loading device suitable for processing vehicle-mounted sound units. Background Technology

[0002] Considering the automation of vehicle-mounted sound units, their associated workpieces often utilize adsorption and positioning equipment in the processing. For example, the commonly used mechanical vacuum adsorption rotary mechanism achieves product adsorption through a vacuum channel, and uses a claw mechanism and a positioning mechanism to control the rotational accuracy, thus completing basic adsorption, rotation, and handling tasks. Meanwhile, existing automated production workpiece adsorption and transfer devices commonly use vacuum suction cups in conjunction with linear drive components to achieve lateral transfer and adsorption fixation of the workpiece.

[0003] Conventional workpiece adsorption equipment relies on the mechanical coordination of cylinders and claws to drive workpiece rotation. This rotation is unstable at high frequencies and lacks a lateral displacement adjustment structure, failing to meet the multi-station lateral transport requirements in the processing of vehicle-mounted sound units. Furthermore, even with a displacement mechanism, vibrations during operation can cause displacement deviations, affecting workpiece positioning accuracy.

[0004] In view of the above-mentioned shortcomings, the designer has actively researched and innovated in order to create an adsorption loading device suitable for the processing of vehicle-mounted sound units, so as to make it more industrially valuable. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an adsorption loading device suitable for the processing of vehicle-mounted sound units.

[0006] This utility model discloses an adsorption loading device suitable for processing vehicle-mounted sound units, comprising a mounting bracket, wherein: a lateral displacement adjustment device is mounted on the mounting bracket, a mounting base is connected to one side of the lateral displacement adjustment device, a rotation adjustment device is mounted on the mounting base, and a bearing device is mounted on the rotation adjustment device; a conduction control device is also mounted on the mounting base, and a plurality of adsorption holes are distributed on the bearing device, the conduction control device being conductively connected to the adsorption holes; the rotation adjustment device includes a servo motor, a drive wheel is mounted on the servo motor; a drive shaft is mounted below the bearing device, a driven wheel is connected to the drive shaft, and a transmission belt is sleeved between the drive wheel and the driven wheel.

[0007] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, the lateral displacement adjustment device includes a lead screw drive motor, on which a slider is movably connected, and the slider is connected to a mounting base.

[0008] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, guide rails are distributed on the mounting bracket, one side of the mounting base is mounted to a traction block, and the traction block is movably connected to the guide rails.

[0009] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, the mounting base includes a support frame with guide holes. A servo motor passes through the guide holes. Limit frames are distributed on the support frame, and the servo motor is connected to the limit frames. A support plate is distributed below the support frame, and a conduction control device is installed on the support plate. A guide plate is installed above the support frame, and a connecting bearing is installed on the guide plate. The support device is connected to the connecting bearing.

[0010] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, a sensing device is installed on the guide plate, and the sensing device is a laser sensor.

[0011] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, the bearing device is a turntable, on which a plurality of adsorption holes are distributed in a circular pattern, and the edges of the adsorption holes are fitted with sealing O-rings.

[0012] Furthermore, in the aforementioned adsorption loading device suitable for processing vehicle-mounted sound units, the outer surfaces of the drive wheel and driven wheel are provided with anti-slip rubber strips; or, the outer surfaces of the drive wheel and driven wheel are provided with anti-slip teeth.

[0013] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, the conduction control device is an air slip ring, on which several air guide joints are installed, and a vacuum pump is connected to each air guide joint.

[0014] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, the mounting bracket includes a loading plate with several mounting holes; and several triangular reinforcing frames are mounted on the outer side of the loading plate.

[0015] Furthermore, in the aforementioned adsorption loading equipment suitable for processing vehicle-mounted sound units, a hydraulic damper is installed at the end of the drive shaft of the rotation adjustment device to limit the rotational limit position of the bearing device.

[0016] By means of the above solution, this utility model has at least the following advantages: 1. The mounting bracket provides stable load-bearing capacity and excellent resistance to deformation. The PTFE slider in the groove of the guide rail and traction block reduces friction, significantly minimizing vibration and displacement during equipment operation and ensuring overall structural rigidity and operational stability.

[0017] 2. The lateral displacement adjustment device is driven by a servo screw motor, and the locating pins between the slider and the mounting base ensure concentricity of the connection. The rotary adjustment device operates stably without slippage, and a hydraulic damper is installed at the end of the drive shaft to prevent overtravel. This improves the accuracy of workpiece position and angle adjustment and reduces control errors.

[0018] 3. The rotating adsorption holes of the bearing device are equipped with nitrile rubber O-rings to effectively prevent air leakage during adsorption and ensure stable adsorption force. The conduction control device adopts a multi-channel air slip ring, whose stator is connected to the vacuum pump and adsorption holes respectively. The rotor rotates synchronously with the drive shaft, avoiding air pipe entanglement and ensuring continuous conduction between the adsorption holes and the air source. At the same time, the laser sensor on the guide plate can detect the adsorption status of the workpiece in real time and promptly provide feedback signals of placement or detachment.

[0019] 4. The overall structure is simple and can be directly installed in processing equipment, making it highly versatile.

[0020] 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 preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an adsorption loading device suitable for processing vehicle-mounted sound units.

[0022] The meanings of the labels in the figures are as follows.

[0023] Detailed Implementation The specific embodiments of this utility model will be further described in 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 the scope of this utility model.

[0024] like Figure 1An adsorption loading device suitable for processing vehicle-mounted sound units includes a mounting bracket 1, which comprises a loading plate. Specifically, the loading plate is made of steel plate, cut to a thickness of 10mm-15mm. Several mounting holes, 10mm-12mm in diameter, are evenly distributed along its edge. These holes are through holes and can be secured to the workbench or frame of the processing production line using M8-M10 bolts, ensuring overall stability during operation. Several triangular reinforcing frames 14 are installed on the outer side of the loading plate. Their two right-angled sides are welded to the sides of the loading plate and the workbench (or frame), forming a stable triangular support structure. This effectively enhances the loading plate's resistance to deformation and reduces displacement caused by vibration during operation. Furthermore, guide rails 9 are distributed along the length of the loading plate on the mounting bracket 1. These guide rails 9 are linear, and their surfaces are hardened and ground, resulting in low surface roughness. During assembly, the two ends of the guide rails 9 are bolted to the loading plate, with their extension direction aligned with the driving direction of the subsequent lateral displacement adjustment device. Considering the guiding stability during lateral displacement, two parallel guide rails 9 can be optionally installed, with the other guide rail 9 installed at the corresponding reserved position on the vehicle-mounted sound unit production equipment.

[0025] What makes this invention unique is that it incorporates a lateral displacement adjustment device, including a lead screw drive motor 8, mounted on the loading plate of the mounting bracket 1. For ease of implementation, the lead screw drive motor 8 is a servo lead screw motor with a rated power of 500W-1000W and a rated speed of 1500rpm-3000rpm. Simultaneously, a ball screw is connected to its output end, with both ends of the screw fixed to the loading plate via bearing seats. A slider is movably connected to the lead screw, and the slider integrates a nut seat adapted to the lead screw, which engages with the lead screw via a trapezoidal thread. Furthermore, the slider is rigidly connected to the mounting base 2 via four M6 bolts, and two 4mm diameter locating pins are provided at the connection point. These locating pins are interference-fitted with the locating holes on the slider and mounting base 2 to ensure concentricity between the slider and mounting base 2, preventing wobbling during lateral movement. On one side of the mounting base 2, corresponding to the guide rail 9 on the mounting bracket 1, a traction block is installed. Specifically, the traction block is made of wear-resistant cast iron, and its bottom has a groove that matches the guide rail 9. A polytetrafluoroethylene slider is embedded in the groove to reduce the coefficient of friction between the traction block and the guide rail 9. During use, the traction block and the guide rail 9 form a sliding engagement. When the lead screw drives the motor 8, the slider drives the mounting base 2 to move along the lead screw axis, while the traction block slides along the guide rail 9. The cooperation of these two mechanisms ensures the smoothness and accuracy of the lateral movement of the mounting base 2.

[0026] According to a preferred embodiment of this utility model, the mounting base 2 includes a support frame with a thickness of 20mm-30mm to ensure sufficient structural strength. The support frame has a guide hole, which is a circular through hole with a diameter 2mm-3mm larger than the diameter of the servo motor 5 housing of the rotary adjustment device, ensuring no mechanical interference when the servo motor 5 passes through. Four limiting frames 10 are evenly distributed around the guide hole. Each limiting frame 10 is welded from two vertical steel plates, with a thickness of 8mm-10mm. The inner side of the limiting frame 10 fits against the flange of the servo motor 5. The flange is fixed to the limiting frame 10 with four M8 bolts. Spring washers are also provided at the bolt connections to prevent loosening. A 1mm thick rubber pad is also attached to the inner side of the limiting frame 10 to absorb some of the vibration generated by the servo motor 5 during operation, reducing the impact on the support frame.

[0027] Meanwhile, a support plate 11 can be welded to the bottom of the support frame. The support plate 11 is a 10mm thick steel plate with a milled surface and a flatness error of no more than 0.1mm / m, providing a flat mounting surface for the conduction control device 3. A guide plate 12 is bolted to the top of the support frame. The guide plate 12 is made of 6061 aluminum alloy and its surface can be anodized to improve surface hardness and wear resistance. A connecting bearing 16 is installed in the middle of the guide plate 12. The connecting bearing 16 is preferably a deep groove ball bearing. Its outer ring is fitted with the mounting hole on the guide plate 12, and its inner ring is interference-fitted with the drive shaft of the support device 15, ensuring a small coaxiality error when the support device 15 rotates. Furthermore, a sensing device 13 is installed on the guide plate 12 near the edge. Preferably, this sensing device 13 is a laser sensor, specifically a diffuse reflection laser sensor. Its sensing head faces the area above the support device 15, allowing real-time detection of the adsorption state of the workpiece on the support device 15. When the workpiece is adsorbed into position, the laser is reflected and received by the sensor, sending a positioning signal; when the workpiece falls off or is not adsorbed, the sensor outputs no signal, which allows the equipment control system to make timely adjustments.

[0028] Furthermore, a rotation adjustment device is installed on the support frame of the mounting base 2. Specifically, it includes a servo motor 5, which can be an AC servo motor with a rated power of 300W-500W and a rated speed of 3000rpm. This ensures precise control of the rotation angle of the support device 15. The output shaft of the servo motor 5 is connected and fixed to a drive wheel 6 via a key. The drive wheel 6 is injection molded from polyoxymethylene material, with an outer diameter of 50mm-80mm. Simultaneously, a drive shaft with a length of 100mm-150mm is welded and fixed to the center of the lower part of the support device 15, and the axis of the drive shaft coincides with the axis of the bearing 16. A driven wheel is connected and fixed to the lower end of the drive shaft via a key. The driven wheel can be made of the same material as the drive wheel 6, and its outer diameter is the same. Of course, for certain special needs, different diameters can be set according to the transmission ratio requirements, such as a 1:2 ratio of the diameter of the drive wheel 6 to the driven wheel, to achieve speed reduction and torque increase. A transmission belt 7 is fitted between the drive wheel 6 and the driven wheel. The transmission belt 7 is a polyurethane synchronous belt with a steel wire skeleton inside to enhance its strength. The teeth on the surface of the transmission belt 7 mesh with the anti-slip teeth on the outer surfaces of the drive wheel 6 and the driven wheel, ensuring no slippage during transmission and high transmission efficiency. During implementation, if synchronous transmission is not required, anti-slip rubber strips can also be distributed on the outer surfaces of the drive wheel 6 and the driven wheel. The anti-slip rubber strips are fixed to the wheel surface through a vulcanization process, with a thickness of 2mm-3mm, which can also effectively improve the friction between the wheel and the transmission belt 7. At the end of the drive shaft, below the driven wheel, a hydraulic damper is also installed. Its cylinder is fixed to the bottom of the support frame by a bracket, and the end of the piston rod is positioned opposite to the end of the drive shaft. In use, when the support device 15 rotates to the preset limit position, the end of the drive shaft will contact the piston rod of the hydraulic damper. Through the damping effect of the oil inside the damper, the drive shaft will slowly decelerate to a stop, preventing the support device 15 from being damaged by inertial impact on other components.

[0029] In practical implementation, the bearing device 15 used in this invention is a turntable, which can be made of 6061 aluminum alloy and CNC milled, preferably with a diameter of 200mm-300mm and a thickness of 10mm-15mm. Several adsorption holes 4 are evenly distributed along the circumference of the turntable. The number of these adsorption holes 4 is set according to the size and processing requirements of the vehicle-mounted sound unit workpiece, typically 6 to 8. Simultaneously, the central angles of adjacent adsorption holes 4 are equal; for example, with 6 adsorption holes 4, the central angle is 60°, ensuring uniform force during workpiece adsorption. Furthermore, the adsorption holes 4 are through holes with a diameter of 8mm-12mm, and the inner walls of the holes are honed to reduce airflow resistance. An annular groove, 1mm deep and 2mm wide, is formed on the upper surface of the turntable at the edge of each adsorption hole 4. A sealing O-ring, made of nitrile rubber with a cross-sectional diameter of 2mm, is fitted inside the groove, its inner diameter matching the diameter of the adsorption hole 4. When the cone or wavelet of the sound-generating unit is adsorbed onto the surface of the turntable, the sealing O-ring is pressed by the workpiece, which can effectively prevent air leakage at the edge of the adsorption hole 4 and ensure the stability of the adsorption force.

[0030] Looking further, the conduction control device 3, which is an air slip ring, is mounted on the support plate 11 of the mounting base 2. This air slip ring employs a multi-channel structure, with the number of channels matching the number of adsorption holes 4 on the support device 15. This ensures continuous conduction between each adsorption hole 4 and the air source while the support device 15 rotates, preventing air pipe entanglement. In use, the stator of the air slip ring is bolted to the support plate 11, and the rotor is connected to the drive shaft of the support device 15 via a coupling, rotating synchronously with the drive shaft. Several air guide connectors are mounted on the stator of the air slip ring. These connectors are quick-connect fittings made of chrome-plated brass. One air guide connector is connected to a vacuum pump via a PU air pipe, while the remaining air guide connectors are connected to the adsorption holes 4 on the turntable via air pipes. Thus, when the vacuum pump operates, negative pressure is provided to each adsorption hole 4 through the air guide connectors and the air slip ring, generating sufficient adsorption force to firmly adsorb the workpiece corresponding to the vehicle-mounted sound unit onto the turntable surface. When the workpiece needs to be released, the vacuum pump stops working, and the air slip ring introduces normal pressure air through another passage, so that the negative pressure in the adsorption hole 4 disappears and the workpiece is released.

[0031] The working principle of this utility model is as follows: During assembly, the equipment is first fixed through the mounting holes of the mounting bracket 1. The vacuum pump is started, and negative pressure is provided to the suction hole 4 of the bearing device 15 through the air slip ring and air guide connector of the control device 3. The external feeding mechanism places the workpiece of the vehicle-mounted sound unit at the suction hole 4 of the turntable. After the sensing device 13 on the guide plate 12 detects that the workpiece is in place, it sends a signal to the control system. Then, the control system drives the lead screw drive motor 8 of the lateral displacement adjustment device to work. The lead screw drives the slider and the mounting base 2 to move laterally along the guide rail 9, transporting the workpiece to the designated lateral position. Subsequently, the control system starts the servo motor 5 of the rotation adjustment device. The servo motor 5 drives the drive shaft and the turntable to rotate through the drive wheel 6, the transmission belt 7, and the driven wheel, adjusting the workpiece to the preset processing angle.

[0032] After processing, the lateral displacement adjustment device and the rotation adjustment device move in opposite directions to transport the workpiece to the unloading position. The control system stops the vacuum pump and introduces atmospheric pressure air into the control device 3, causing the workpiece to detach from the adsorption hole 4, completing one adsorption loading process. Throughout the process, the triangular reinforcement frame 14 of the mounting bracket 1 ensures the overall stability of the equipment, the guide rail 9 cooperates with the traction block to ensure smooth lateral movement, the bearing 16 ensures the rotation accuracy of the turntable, the sealing O-ring cooperates with the air slip ring to ensure reliable adsorption, and the hydraulic buffer prevents overtravel. The coordinated action of all components enables efficient and precise loading of the workpiece during the processing of the vehicle-mounted sound unit.

[0033] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] 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. An adsorption loading device suitable for processing vehicle-mounted sound units, comprising a mounting bracket, characterized in that: A lateral displacement adjustment device is installed on the mounting bracket. One side of the lateral displacement adjustment device is connected to a mounting base. A rotation adjustment device is installed on the mounting base, and a bearing device is installed on the rotation adjustment device. A conduction control device is also installed on the mounting base. Several suction holes are distributed on the bearing device, and the conduction control device is conductively connected to the suction holes. The rotation adjustment device includes a servo motor, and a drive wheel is installed on the servo motor. A drive shaft is installed below the bearing device, and a driven wheel is connected to the drive shaft. A transmission belt is sleeved between the drive wheel and the driven wheel.

2. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The lateral displacement adjustment device includes a lead screw drive motor, and a slider is movably connected to the lead screw drive motor. The slider is connected to the mounting base.

3. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The mounting bracket has guide rails distributed on it, and a traction block is mounted on one side of the mounting base. The traction block is movably connected to the guide rails.

4. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The mounting base includes a support frame with guide holes through which a servo motor passes. Limit frames are distributed on the support frame, and the servo motor is connected to the limit frames. A support plate is distributed below the support frame, and a conduction control device is installed on the support plate. A guide plate is installed above the support frame, and a connecting bearing is installed on the guide plate. The support device is connected to the connecting bearing.

5. The adsorption loading device for processing vehicle-mounted sound units according to claim 4, characterized in that: A sensing device, specifically a laser sensor, is mounted on the guide plate.

6. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The supporting device is a turntable, on which a number of adsorption holes are distributed in a circular pattern, and the edges of the adsorption holes are fitted with sealing O-rings.

7. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The outer surfaces of the drive wheel and driven wheel are provided with anti-slip rubber strips; or, the outer surfaces of the drive wheel and driven wheel are provided with anti-slip teeth.

8. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The conduction control device is an air slip ring, on which several air guide joints are installed, and a vacuum pump is connected to each air guide joint.

9. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: The mounting bracket includes a loading plate with several mounting holes; several triangular reinforcing frames are installed on the outer side of the loading plate.

10. The adsorption loading device for processing vehicle-mounted sound units according to claim 1, characterized in that: A hydraulic damper is installed at the end of the drive shaft of the rotation adjustment device to limit the rotational limit position of the bearing device.

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