A curved surface finishing device for vehicle metal workpieces

Abstract

The utility model discloses a kind of curved surface finishing treatment devices for vehicle metal workpiece, it is related to grinding dustproof device technical field.The utility model includes processing box, flexible fixture is arranged in the processing box, dust absorption plate is fixedly connected in the processing box inner wall, controller is fixedly connected in the processing box one side.The utility model passes through the coordinated movement of sealing mechanism, realizes the dynamic sealing and convenient maintenance of flexible fixture movable gap, hydraulic cylinder drives push frame lifting, can be stably jacked or press sealing plate down, simultaneously, the magnetic force cooperation of electromagnet and magnetic attraction strip makes sealing plate can be quickly adsorbed fixed or separated, sealing ring is inserted into the gap of fixture plate and adaptive pole with sealing plate press down, form physical barrier, the movement process effectively blocks the path of polishing debris invading precision transmission component, effectively reduces the risk of jam and failure rate of flexible fixture, to prolong the service life of fixture, improve the reliability and production efficiency of equipment operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding dust prevention devices, and in particular relates to a device for precision machining of curved surfaces of vehicle metal workpieces. Background Technology

[0002] With the rapid development of the automotive industry, the requirements for manufacturing precision and surface quality of vehicle metal parts are increasing. Vehicle metal parts generally refer to various metal stampings, castings, and machined parts that constitute the body, chassis, engine, and other assemblies of a car, such as doors, hoods, and fenders. These parts typically have complex curved surface shapes to meet aerodynamic, aesthetic, and structural strength requirements. Vehicle metal part surface finishing equipment is a specialized automated device for the final finishing of these complex curved surfaces. It typically includes processes such as grinding, polishing, and deburring. Its core function is to eliminate microscopic unevenness, machining marks, and defects on the workpiece surface, thereby achieving extremely high surface finish, precise curved surface contours, and excellent surface quality to meet the assembly requirements, painting requirements, and aesthetic appeal of the final product. In such devices, flexible clamps have become key equipment for stably holding curved workpieces of various shapes. These clamps combine multiple independently controllable adapter rods to form a support contour that conforms to the curved surface shape of the workpiece, achieving precise and flexible positioning and fixation of irregularly shaped workpieces.

[0003] Existing surface finishing devices for vehicle metal workpieces still have some problems during use. For example, during the finishing process, fine dust and metal shavings generated by grinding can easily penetrate into the fixture through the movable gap between the fixture plate and the adapter rod. These hard particles accumulate around the precision transmission components, causing the adapter rod to jam, move poorly, or even be damaged. This seriously affects the positioning accuracy, reliability, and service life of the fixture, leading to production interruptions and high maintenance costs.

[0004] To address these issues, we provide a surface finishing apparatus for vehicle metal workpieces to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a curved surface finishing device for vehicle metal workpieces. By using a sealing mechanism in conjunction with a blower mechanism, it solves the problem that existing curved surface finishing devices have the problem that fine dust and metal chips generated during grinding can easily enter the interior of the fixture through the movable gap between the fixture plate and the adapter rod of the flexible fixture.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a surface finishing device for vehicle metal workpieces, comprising a processing box, a flexible fixture inside the processing box, a dust collection plate fixedly connected to the inner wall of the processing box, a controller fixedly connected to one side of the processing box, a sealing mechanism on the top of the flexible fixture, the sealing mechanism including a replacement component outside the flexible fixture, a sealing plate on the top of the flexible fixture, and a sealing ring at the bottom of the sealing plate, and a blower mechanism inside the sealing plate, the blower mechanism including an air supply pipe fixedly connected inside the sealing plate, a blower nozzle connected to the top of the air supply pipe, and an inlet and outlet through hole opened inside the sealing plate.

[0008] The present invention is further configured such that the replacement component includes hydraulic cylinders fixedly connected to the four corners of the flexible clamp, and a push frame fixedly connected to the output end of the hydraulic cylinder.

[0009] The present invention is further configured such that a magnetic strip is fixedly connected to the bottom of the sealing plate, and an electromagnet is in contact with the bottom of the magnetic strip.

[0010] The present invention is further configured such that the sealing ring is located at the bottom of the inlet / outlet through hole, and the inlet / outlet through hole is adapted to be used with the adapter rod in the flexible clamp.

[0011] The present invention is further configured such that the number of air supply pipes is five, and the top of the air blowing nozzle extends to the top of the sealing plate.

[0012] The present invention is further configured such that the blower nozzle is located between two inlet and outlet through holes, and the five air supply pipes are connected to an external fan through connecting pipes.

[0013] This utility model has the following beneficial effects: 1. This utility model achieves dynamic sealing and convenient maintenance of the movable gaps of the flexible fixture through the coordinated movement of the sealing mechanism. The hydraulic cylinder drives the push frame to rise and fall, which can smoothly lift or press down the sealing plate. At the same time, the magnetic force of the electromagnet and the magnetic strip cooperates to enable the sealing plate to be quickly attracted, fixed or separated. The sealing ring is inserted into the gap between the fixture plate and the adapter rod as the sealing plate is pressed down, forming a physical barrier. This movement process effectively blocks the path of grinding debris into the precision transmission components, effectively reducing the risk of jamming and failure rate of the flexible fixture, thereby extending the service life of the fixture and improving the reliability and production efficiency of the equipment.

[0014] 2. This utility model combines the directional airflow of the blower mechanism with the physical barrier of the sealing mechanism to achieve dual protection of active cleaning and passive protection. The external fan sends the airflow through the air supply pipe to the blower nozzle, forming an upward blowing airflow field that instantly blows the grinding dust away from the workpiece surface. At the same time, the sealing ring is inserted into the gap to form a seal. This movement process ensures that the dust is blown upward and captured by the dust collection plate when it is generated, preventing the debris from settling in the gap. This design not only effectively solves the problem of debris intruding into the fixture, but also keeps the processing area clean, reduces the frequency of equipment maintenance, and ensures the stability of processing quality.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a device for finishing curved surfaces of metal workpieces used in vehicles.

[0018] Figure 2 This is a diagram showing the effect of installing a sealing plate in a curved surface finishing device for vehicle metal workpieces.

[0019] Figure 3 This is a structural diagram of the replacement component in a curved surface finishing device for vehicle metal workpieces.

[0020] Figure 4 This is a cross-sectional view of the push frame in a curved surface finishing device for vehicle metal workpieces.

[0021] Figure 5 This is a structural diagram of the blower mechanism in a device for finishing curved surfaces of metal workpieces for vehicles.

[0022] Figure 6 This is a bottom sectional view of a sealing plate in a curved surface finishing device for vehicle metal workpieces.

[0023] In the attached diagram: 1. Processing box; 2. Flexible clamp; 3. Dust suction plate; 4. Controller; 5. Sealing mechanism; 51. Replacement component; 511. Hydraulic cylinder; 512. Push frame; 52. Sealing plate; 53. Sealing ring; 6. Blowing mechanism; 61. Air supply pipe; 62. Blowing nozzle; 63. Inlet and outlet through holes; 7. Magnetic strip; 8. Electromagnet. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] For a specific implementation example, please refer to Implementation Example 1. Figures 1-6 This utility model is a curved surface finishing device for vehicle metal workpieces, including a processing box 1, a flexible clamp 2 inside the processing box 1, a dust suction plate 3 fixedly connected to the inner wall of the processing box 1, a controller 4 fixedly connected to one side of the processing box 1, a sealing mechanism 5 on the top of the flexible clamp 2, the sealing mechanism 5 including a replacement component 51 on the outside of the flexible clamp 2, a sealing plate 52 on the top of the flexible clamp 2, and a sealing ring 53 on the bottom of the sealing plate 52, a blower mechanism 6 inside the sealing plate 52, the blower mechanism 6 including an air supply pipe 61 fixedly connected inside the sealing plate 52, a blower nozzle 62 connected to the top of the air supply pipe 61, and an inlet and outlet through hole 63 opened inside the sealing plate 52.

[0026] Specifically, the sealing mechanism 5 mainly consists of a replacement component 51, a sealing plate 52, and a sealing ring 53. Its core function is to physically seal the movable gap at the top of the flexible clamp 2 to prevent grinding debris from entering. During operation, the hydraulic cylinder 511 drives the push frame 512 to move upward, lifting the sealing plate 52 placed in the positioning groove for easy maintenance and replacement. The magnetic strip 7 at the bottom of the sealing plate 52 is attracted and fixed to the electromagnet 8 in the positioning groove, ensuring that the sealing plate 52 stably covers the top of the flexible clamp 2. The sealing ring 53 is pressed down with the sealing plate 52 and inserted into the gap between the clamp plate and the adapter rod. An effective sealing barrier is formed. The blower mechanism 6 is integrated inside the sealing plate 52 and consists of an air supply pipe 61, a blower nozzle 62, and an inlet / outlet through hole 63. Its function is to generate an upward airflow during the processing to actively remove dust and debris and prevent them from settling or entering gaps. An external fan supplies air to the five air supply pipes 61 through a connecting pipe. The airflow is sprayed upward from the blower nozzle 62. The blower nozzles 62 located between adjacent inlet / outlet through holes 63 form a covering blowing area, which blows the dust generated by grinding upward and removes it from the surface of the fixture. Finally, it is captured and processed by the dust collection plate 3 on the inner wall of the processing box 1.

[0027] For a specific embodiment two, please refer to Figures 1-6Based on the first specific embodiment, the replacement component 51 includes hydraulic cylinders 511 fixedly connected to the four corners of the flexible clamp 2, and a push frame 512 fixedly connected to the output end of the hydraulic cylinders 511. The push frame 512 is sleeved on the outer surface of the flexible clamp 2. A positioning groove adapted to the sealing plate 52 is opened between the push frame 512 and the flexible clamp 2. A magnetic strip 7 is fixedly connected to the bottom of the sealing plate 52. An electromagnet 8 is in contact with the bottom of the magnetic strip 7. Both the magnetic strip 7 and the electromagnet 8 are rectangular in shape. The electromagnet 8 is fixedly connected inside the positioning groove. The sealing ring 53 is located at the bottom of the inlet and outlet through hole 63. The inlet and outlet through hole 63 is adapted to the adapter rod in the flexible clamp 2. There are five air supply pipes 61. The top of the air blowing nozzle 62 extends to the top of the sealing plate 52. The air blowing nozzle 62 is located between two inlet and outlet through holes 63. The five air supply pipes 61 are connected to an external fan through a connecting pipe.

[0028] Specifically, by replacing component 51, hydraulic cylinder 511 drives push frame 512 to move up and down. Push frame 512 pushes sealing plate 52, which is limited in positioning groove, upward, making it convenient to clean and replace sealing plate 52. Magnetic strip 7 and electromagnet 8 are used to magnetically fix sealing plate 52 to the top of flexible clamp 2. Through hole 63, adapter rod of flexible clamp 2 can extend through to the top of sealing plate 52, allowing sealing plate 52 to be fitted onto the top of flexible clamp 2. Sealing ring 53 is inserted downward into the gap between clamp plate and adapter rod in flexible clamp 2 during installation of sealing plate 52, preventing grinding debris from entering the gap. Air supply pipe 61 and air nozzle 62 blow air upward during grinding, blowing up grinding dust and debris to prevent them from falling into the gap.

[0029] The operation process of this embodiment is as follows: the hydraulic cylinder 511 drives the push frame 512 to move upward, bringing the magnetic strip 7 at the bottom of the sealing plate 52 into contact with the electromagnet 8. The electromagnet 8 is energized to magnetically fix the magnetic strip 7. Then, the hydraulic cylinder 511 resets and drives the sealing plate 52 to move downward, so that the sealing plate 52 fits tightly against the surface of the flexible clamp 2. At the same time, the sealing ring 53 at the bottom of the sealing plate 52 is pressed down and precisely inserted into the movable gap between the clamp plate and the adapter rod, forming a physical barrier to effectively prevent the intrusion of grinding debris. When maintenance or replacement is required, the hydraulic cylinder 511 restarts and drives the push frame 512 to move upward, lifting the sealing plate 52 smoothly, thus facilitating cleaning or replacement operations.

[0030] The blower mechanism 6 achieves active cleaning by generating directional airflow. During the finishing process, the external fan is started, and the airflow is delivered through the connecting pipe to the five air supply pipes 61 inside the sealing plate 52, and finally sprayed upward from the blower nozzles 62. These nozzles located between the inlet and outlet through holes 63 form a covering blowing area. The continuously upward airflow instantly blows the dust and metal debris generated during the grinding process away from the workpiece and fixture surface, preventing them from settling downward or entering the gaps. The blown dust is then captured and concentrated by the dust collection plate 3 on the inner wall of the processing box 1, thereby keeping the processing area clean.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A surface finishing device for vehicle metal workpieces, comprising a processing box (1), characterized in that: The processing box (1) is equipped with a flexible clamp (2), a dust collection plate (3) is fixedly connected to the inner wall of the processing box (1), and a controller (4) is fixedly connected to one side of the processing box (1). The flexible clamp (2) is provided with a sealing mechanism (5) at the top. The sealing mechanism (5) includes a replacement component (51) provided outside the flexible clamp (2), a sealing plate (52) provided at the top of the flexible clamp (2), and a sealing ring (53) provided at the bottom of the sealing plate (52). The sealing plate (52) is provided with a blower mechanism (6), which includes an air supply pipe (61) fixedly connected inside the sealing plate (52), a blower nozzle (62) connected to the top of the air supply pipe (61), and an inlet and outlet through hole (63) opened inside the sealing plate (52).

2. The device for finishing curved surfaces of vehicle metal workpieces according to claim 1, characterized in that, The replacement component (51) includes hydraulic cylinders (511) fixedly connected to the four corners of the flexible clamp (2), and a push frame (512) fixedly connected to the output end of the hydraulic cylinders (511).

3. The device for finishing curved surfaces of vehicle metal workpieces according to claim 1, characterized in that, A magnetic strip (7) is fixedly connected to the bottom of the sealing plate (52), and an electromagnet (8) is in contact with the bottom of the magnetic strip (7).

4. The device for finishing curved surfaces of vehicle metal workpieces according to claim 1, characterized in that, The sealing ring (53) is located at the bottom of the inlet / outlet hole (63), which is used in conjunction with the adapter rod in the flexible clamp (2).

5. The device for finishing curved surfaces of vehicle metal workpieces according to claim 1, characterized in that, The number of air supply pipes (61) is five, and the top of the air blowing nozzle (62) extends to the top of the sealing plate (52).

6. The device for finishing curved surfaces of vehicle metal workpieces according to claim 1, characterized in that, The blower nozzle (62) is located between two inlet and outlet through holes (63), and the five air supply pipes (61) are connected to an external fan through connecting pipes.

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