Car interior upholstery cover clamping device

Abstract

This utility model discloses a clamping device for automotive interior trim coverings, relating to the field of automotive interior parts manufacturing technology. The device includes a mounting base, a central flange-type cylinder, a spherical connector, a rotating shaft, a rotating lever arm, a toothed plate, and a trim base plate. The central flange-type cylinder drives the rotating lever arm to rotate around the rotating shaft, causing the toothed plate to engage with the trim base plate to clamp or release the trim. This utility model solves the problems of easy damage to the trim from existing pin clamping and inconvenient operation from direct cylinder clamping. It has the advantages of convenient operation, reliable clamping, and reduced trim damage, and is suitable for efficient clamping of trims in automotive interior parts covering processes.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior parts manufacturing technology, specifically to an automotive interior parts covering skin clamping device, used to reliably clamp the skin during the automotive interior parts covering process. Background Technology

[0002] In the production of automotive interior parts, skin covering is one of the key processes. Its core requirement is to ensure that the skin is tightly attached to the interior parts by effectively clamping the skin, thereby ensuring the quality of the covering.

[0003] Currently, there are two main methods for clamping automotive interior trim panels in the industry: one is to use pins to hang the panel, which requires manual hanging of each panel onto the pins, a tedious operation that is prone to damage due to the sharp pins; the other is to clamp the panel directly with a cylinder, but its control logic is relatively complex, requiring frequent adjustments to cylinder parameters during manual operation, which not only increases the labor intensity but also easily affects the clamping effect due to improper operation, resulting in a loose fit of the panel and affecting the quality of the covering.

[0004] Therefore, existing technologies suffer from problems such as inconvenience of manual operation, low efficiency, and easy damage to the epidermis, and there is an urgent need for an epidermal clamping device that is easy to operate and has reliable clamping. Utility Model Content

[0005] This utility model aims to solve the technical problems of inconvenient manual operation, low efficiency, and easy damage to the surface of existing automotive interior parts clamping methods. To achieve the above objectives, this utility model provides the following technical solution: The automotive interior trim covering clamping device includes a mounting base, a central flange cylinder, a spherical connector, a rolling bearing, a rotating shaft, a fixed shaft, a rotating lever arm, a gear plate, a trim base plate, and a support plate.

[0006] The connection relationships of each component are as follows: The mounting base is fixed to the external assembly equipment and serves as the supporting foundation for the entire device. The intermediate flange type cylinder is fixed to the preset position of the mounting base by bolts, and its piston rod can extend and retract axially; The fisheye connector is installed at the end of the piston rod of the intermediate flange cylinder via a threaded connection to eliminate connection gaps and ensure the stability of force transmission. The rolling bearing is fixed in the bearing housing of the mounting base by interference fit, providing support for the rotating shaft; The rotating shaft passes through the inner ring of the rolling bearing, and one end of the rotating shaft is fixed to the middle of the rotating lever arm by a key, so that the rotating lever arm can rotate flexibly around the rotating shaft; After the fixed shaft passes through the through hole of the fisheye joint, both ends are fixed to one end of the rotating lever arm by welding, so as to realize the linkage between the cylinder and the rotating lever arm; The other end of the rotating lever arm is detachably connected to the toothed plate by bolts, and the lower surface of the toothed plate is provided with evenly distributed anti-slip teeth; The bottom of the support plate is welded and fixed to the mounting base, and the top is connected to the skin base plate by bolts. The skin base plate is set horizontally and located directly below the toothed plate to form a mating surface for skin clamping.

[0007] Skin Placement and Clamping Process: When the skin needs to be placed, initially the piston rod of the intermediate flange cylinder is in the retracted state, and the rotating arm is in the raised position under its own weight and cylinder pulling force. Sufficient gap is formed between the toothed plate and the skin base plate, facilitating manual or mechanical placement of the skin on the skin base plate. After placement, the piston rod of the intermediate flange cylinder is extended, pushing the spherical connector forward. The spherical connector drives the rotating arm to rotate clockwise around the rotating axis via the fixed shaft. As the rotating arm rotates, the toothed plate connected to its other end gradually moves downward until the anti-slip teeth on the lower surface of the toothed plate contact the skin and press the skin firmly against the skin base plate, completing the clamping action. At this time, the skin is not easy to slip under the action of the anti-slip teeth, ensuring a tight fit.

[0008] Skin Removal and Releasing Process: When the coating process is completed and the skin needs to be removed, the piston rod of the control flange cylinder retracts, and the piston rod pulls the fisheye joint to move backward. The fisheye joint drives the rotating arm to rotate counterclockwise around the rotating axis through the fixed shaft. During the rotation of the rotating arm, the toothed plate is raised accordingly, and the gap between it and the skin bottom plate gradually increases until the skin is completely free from the clamping constraint. At this time, the skin can be easily removed, and the loosening action is completed.

[0009] Compared with the prior art, the beneficial effects of this utility model are: Improved ease of operation: By optimizing the structural design of the rotating arm and the toothed plate, the gap between the toothed plate and the skin base plate is larger when the rotating arm is open (relaxed state), which facilitates the quick placement / removal of the skin manually or mechanically, reducing the complexity of manual operation; Enhanced clamping reliability: The anti-slip teeth on the lower surface of the toothed plate increase the friction with the skin. Combined with the stable pressure driven by the cylinder, it can effectively prevent the skin from slipping during the wrapping process and ensure the fitting accuracy. Reduced risk of epidermal damage: Compared to traditional needle-hanging methods, this device clamps the epidermis through toothed plate contact, avoiding puncture damage to the epidermis from sharp parts and protecting the integrity of the epidermis; High structural stability: The components are mechanically connected to form a stable transmission chain. The cylinder driving force is smoothly transmitted to the rotating arm through the fisheye joint, fixed shaft and other components, ensuring that the clamping action is continuous and reliable, and adapting to the needs of mass production. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; In the picture: 1-Mounting base, 2-Intermediate flange cylinder, 3-Fisheye connector, 4-Rolling bearing, 5-Rotating shaft, 6-Fixed shaft, 7-Rotating lever arm, 8-Gear plate, 9-Skin base plate, 10-Support plate. Detailed Implementation

[0011] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0012] like Figure 1-2 As shown; Clamping device for automotive interior upholstery.

[0013] This implementation plan addresses the technical problems existing in the prior art, such as those disclosed in the background section above: "Currently, there are two main methods for clamping automotive interior trim panels: one is to use pins to hang the panel, which requires manual hanging of the panel one by one on the pins, which is cumbersome and prone to damage due to the sharp pins; the other is to clamp the panel directly with a cylinder, but its control logic is relatively complex, requiring frequent adjustment of cylinder parameters during manual operation, which not only increases the labor intensity but also easily affects the clamping effect due to improper operation, resulting in poor panel adhesion and affecting the wrapping quality." In practical terms, this problem is clearly a real and difficult-to-solve issue. Therefore, to solve this technical problem, an automotive interior trim panel clamping device is provided.

[0014] like Figure 1-2 As shown in the figure; This utility model provides a technical solution: the automotive interior covering skin clamping device includes a mounting base 1, a middle flange cylinder 2, a fisheye connector 3, a rolling bearing 4, a rotating shaft 5, a fixed shaft 6, a rotating lever arm 7, a toothed plate 8, a skin base plate 9, and a support plate 10.

[0015] Mounting base 1 is made of Q235 steel plate with a thickness of 20mm. It is fixed to the workbench of the external assembly equipment with 4 M10 bolts to ensure the stability of the overall structure. The intermediate flange type cylinder 2 uses a standard part with a cylinder diameter of 50mm. Its flange is fixed to the mounting base 1 by 4 M8 bolts. The piston rod stroke is set to 80mm, which can provide stable driving force. The fisheye connector 3 is a rod end spherical bearing with an internal thread specification that matches the cylinder piston rod (M16×1.5). It is fixed to the end of the piston rod through a threaded connection, which can eliminate motion interference caused by assembly errors. The rolling bearing 4 is a deep groove ball bearing (model 6204). The outer ring is pressed into the bearing hole of the mounting base 1 by interference fit, and the inner ring is clearance fit with the rotating shaft 5 to ensure flexible rotation. The rotating shaft 5 is a quenched and tempered 45 steel part with a diameter of 20mm and a length of 100mm. One end is connected to the rotating lever arm 7 via a flat key with a keyway depth of 5mm to ensure reliable force transmission. The fixed shaft 6 is a 45# steel round shaft with a diameter of 12mm and a length of 80mm. Both ends are welded to the ends of the rotating lever arm 7. The weld is ground to avoid stress concentration. The rotating lever arm 7 is made of 6061 aluminum alloy plate with a thickness of 15mm and a length of 300mm. It has mounting holes at both ends for connecting with the fixed shaft 6 and the gear plate 8, respectively, and the hole position accuracy is controlled within ±0.1mm. The toothed plate 8 is injection molded from polyoxymethylene (POM) material. Its length matches that of the skin bottom plate 9 (200mm). The anti-slip teeth on the lower surface are 3mm high and 5mm apart, which ensures clamping force while avoiding damage to the skin. The outer skin base plate 9 is a 10mm thick acrylic sheet (transparent material, making it easy to observe the skin adhesion status), 200mm long and 150mm wide; The support plate 10 consists of two symmetrically arranged angle steels (model L50×5) with a height of 80mm. The bottom is welded to the mounting base 1, and the top is fixed to the skin base plate 9 by two M6 bolts to ensure that the levelness error of the skin base plate is ≤0.5mm.

[0016] The working process of this embodiment is as follows: When applying the skin, first retract the piston rod of the intermediate flange cylinder 2. At this time, the rotating arm 7 rotates counterclockwise around the rotating shaft 5 under the action of tension, and the toothed plate 8 is raised, forming a gap of about 50mm between it and the skin base plate 9. Lay the skin to be covered flat on the skin base plate 9, ensuring that the edges of the skin are aligned. Then, extend the cylinder piston rod, which pushes the spherical connector 3 to move. Through the fixed shaft 6, the rotating arm 7 rotates clockwise, and the toothed plate 8 is gradually pressed down until the skin is pressed tightly (at this time, the cylinder working pressure is set to 0.4MPa). After the covering is completed, retract the cylinder piston rod, raise the toothed plate 8, and remove the skin.

[0017] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamping device for a covering skin for an automotive interior, characterized in that The assembly includes a mounting base (1), an intermediate flange cylinder (2), a fisheye connector (3), a rolling bearing (4), a rotating shaft (5), a fixed shaft (6), a rotating lever arm (7), a gear plate (8), a base plate (9), and a support plate (10); the mounting base (1) is fixed to the assembly equipment; the intermediate flange cylinder (2) is fixed to the mounting base (1); the fisheye connector (3) is installed on the piston rod of the intermediate flange cylinder (2); the rolling bearing (4) is fixed to the mounting base (1); the rotating shaft... (5) Passing through the rolling bearing (4), and the rotating shaft (5) is connected to the rotating lever arm (7), so that the rotating lever arm (7) can rotate around the rotating shaft (5); the fixed shaft (6) passes through the fisheye joint (3) and is connected to the rotating lever arm (7); the end of the rotating lever arm (7) away from the rotating shaft (5) is connected to the toothed plate (8); the skin bottom plate (9) is fixed to the mounting base (1) by the support plate (10), and the skin bottom plate (9) is located directly below the toothed plate (8).

2. The automotive interior cover skin clamping device of claim 1, wherein, The lower surface of the toothed plate (8) is provided with anti-slip teeth.

3. The automotive interior cover skin clamping device of claim 1, wherein, The rolling bearing (4) is a deep groove ball bearing.

4. The automotive interior cover skin clamping device of claim 1, wherein, The number of support plates (10) is at least two, and they are symmetrically distributed on both sides of the skin base plate (9).

5. The automotive interior cover skin clamping device of claim 1, wherein, The rotating arm (7) and the toothed plate (8) are detachably connected by bolts.

6. The automotive interior cover skin clamping device of claim 1, wherein, The skin base plate (9) is made of transparent material.

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