Automobile roof edge cutting positioning tool

Abstract

The utility model provides an automobile ceiling edge cutting positioning tool which comprises a machine frame, a positioning base is detachably arranged on the machine frame, a molded surface matched with the appearance of a ceiling is formed on the upper end face of the positioning base, an installation through hole is formed in the position, corresponding to a ceiling skylight hole, of the positioning base, and the installation through hole is communicated with the ceiling skylight hole. The rack is further provided with a positioning assembly arranged in the mounting through hole in a penetrating mode, and when the ceiling is placed and attached to the positioning base, the positioning assembly is used for being pressed and limited to the ceiling and close to the set position of the peripheral edge of the skylight hole, so that automatic positioning of the ceiling cutting position is achieved. According to the automobile roof edge cutting positioning tool, automatic pressing and positioning can be achieved during edge cutting of products, uniformity of pressing positions every time is guaranteed, labor force is liberated, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, and more specifically, to a positioning tooling for cutting edges on an automobile roof. Background Technology

[0002] As a crucial component of the vehicle's interior, the headliner plays an indispensable role in enhancing a car's competitiveness. Its function is evolving, no longer solely focused on improving the interior's aesthetics, but also requiring excellent heat insulation, noise reduction, and sound absorption. After the semi-finished injection-molded headliner parts are processed, a decorative fabric layer needs to be laminated to its lower surface. Furthermore, edge binding is required at both ends of the headliner substrate and at the sunroof opening. Specifically, the decorative fabric adhered to the inner surface of the sunroof frame of the semi-finished headliner needs to be flipped from the inner surface of the sunroof frame to the outer surface of the sunroof opening and bonded to it. To ensure the smoothness and aesthetics of the edge binding at the sunroof opening, excess substrate around the sunroof opening needs to be trimmed before edge binding.

[0003] In existing technologies, the headliner is typically positioned manually by pressing and clamping. One operator places it on a workbench, holds it in place manually, and another operator uses a utility knife to cut and trim the edges around the sunroof opening, removing excess substrate. This method is time-consuming and labor-intensive because it requires manual pressing and positioning each time. Furthermore, human error in the pressing position makes it difficult to guarantee the accuracy of each cut, resulting in poor uniformity of the finished product. Additionally, it usually requires two workstations, increasing labor costs. Utility Model Content

[0004] To overcome at least one of the defects in the prior art, this utility model provides a car roof trimming and positioning fixture that can automatically clamp and position the product during trimming, ensuring the uniformity of the pressing position each time, and freeing up labor and improving work efficiency.

[0005] The technical solution of this utility model is to provide a positioning fixture for cutting edges on an automobile roof, including a frame. A positioning base is detachably mounted on the frame. The upper surface of the positioning base is formed with a profile that matches the shape of the roof. An installation through hole is opened on the positioning base at a position corresponding to the sunroof opening of the roof. A positioning component is also provided on the frame and passes through the installation through hole. When the roof is placed and attached to the positioning base, the positioning component is used to press and limit the roof at a set position near the circumferential edge of the sunroof opening, so as to realize the automatic positioning of the roof cutting position.

[0006] Compared with the prior art, the automotive roof trimming and positioning fixture of this utility model has the following advantages:

[0007] This utility model's positioning fixture is a specialized automated device that serves as a limiting mechanism when cutting edges at the sunroof opening of a car roof. Specifically, it includes a positioning base mounted on a frame, which supports the entire roof and has a corresponding profile on its upper surface to ensure stable support. Furthermore, the positioning base can be freely replaced according to the product model, effectively ensuring versatility. After the roof is placed on the positioning base, the positioning components press and position themselves at the corresponding position of the sunroof opening. The operator can then cut along the positioned area quickly and conveniently. Automated positioning through specialized equipment better ensures the consistency of multiple positioning operations, improving the uniformity and aesthetics of the cut product. Moreover, using this specialized positioning fixture requires only one operator to complete the cutting, saving labor costs.

[0008] As an improvement, a support base plate is provided on the frame directly below the mounting through hole. The support base plate is provided with multiple support columns, and a mounting plate is connected to the top of each support column. The positioning component is connected to the mounting plate.

[0009] Furthermore, the positioning component includes four first pressing units and four second pressing units, with the four first pressing units corresponding to the four straight wall positions of the sunroof hole, and the four second pressing units corresponding to the four arc-shaped corner positions of the sunroof hole; the first pressing blocks of the four first pressing units and the second pressing blocks of the four second pressing units are arranged to form a positioning contour surface that matches the shape of the sunroof hole.

[0010] Furthermore, the first pressing unit also includes a first sliding cylinder horizontally arranged on the mounting plate along the length or width direction of the sunroof opening. A second sliding cylinder is vertically arranged on the first slide plate of the first sliding cylinder, and the end of the first pressing block away from the edge of the sunroof opening is connected to the second slide plate of the second sliding cylinder. The second pressing unit also includes a tilting cylinder vertically connected to the mounting plate, and the end of the second pressing block away from the edge of the sunroof opening is connected to the tilting arm of the tilting cylinder. In the above structure, the first pressing unit and the second pressing unit adopt different driving methods, and operate independently within a limited space without interference, ensuring efficient positioning and pressing of the roof.

[0011] Furthermore, each of the first pressing units also includes an L-shaped connecting plate. The horizontal plate of the L-shaped connecting plate is connected to the first sliding plate, and the vertical plate of the L-shaped connecting plate has a vertically extending elongated through hole. A connecting screw for connecting and fixing the second sliding cylinder passes through the elongated through hole. In the above structure, the L-shaped connecting plate allows for more accurate adjustment of the position of the second sliding cylinder relative to the first sliding cylinder, thereby achieving accurate positioning of the skylight openings for different types of ceilings.

[0012] Preferably, the frame is a rectangular frame assembled from several square tubes. In the above structure, the frame is assembled from multiple square tubes, which is simple in structure, lightweight, and easy to move.

[0013] In a further improvement, multiple positioning plates are connected to the top outer peripheral wall of the rectangular frame, and each positioning plate is connected to a horizontally extending locking bolt. When the positioning base is placed on top of the frame, the inner ends of each locking bolt abut against and limit the positioning base to its position on the outer peripheral wall of the positioning base. In the above improved structure, the positioning base and the frame are detachable and fixed by circumferentially distributed locking bolts, facilitating the replacement of the positioning base and making it suitable for various types of ceiling positioning, thus exhibiting strong versatility.

[0014] Furthermore, the bottom of the frame is equipped with four omnidirectional casters. In this improved structure, the omnidirectional casters facilitate the movement of the entire fixture, allowing it to be easily moved to an idle position when not in use.

[0015] In a further improvement, a recessed receiving groove is provided on the positioning base at the position corresponding to the mounting hole of the ceiling reading light. In the above improved structure, the receiving groove is used to store utility knives, avoiding the waste of time caused by misplacing knives and searching for them, thereby improving work efficiency.

[0016] Furthermore, the frame is also equipped with a switch button electrically connected to the positioning component. In the above structure, after the ceiling is placed on the positioning base in the set position, the positioning component can be automatically pressed into the corresponding position on the ceiling by operating the switch button, which is convenient to operate and safe to use.

[0017] Other improvements and advantages of this invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the automotive roof trimming and positioning fixture of this utility model;

[0019] Figure 2 This is a structural diagram of the automotive roof trimming and positioning fixture of this utility model after the roof has been placed.

[0020] Figure 3 This is a schematic diagram of the positioning component structure in this utility model;

[0021] Figure 4 This is a schematic diagram of another state structure of the positioning component in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame; 2. Positioning base; 3. Mounting through hole; 4. Support base plate; 5. Support column; 6. Mounting plate; 7. First pressure block; 8. Second pressure block; 9. First slide cylinder; 10. Second slide cylinder; 11. Tilting cylinder; 12. L-shaped connecting plate; 13. Long through hole; 14. Positioning plate; 15. Locking bolt; 16. Universal roller; 17. Receiving groove; 18. Switch button. Detailed Implementation

[0024] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0025] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0026] In the embodiments of this application, unless otherwise expressly specified and limited, the first feature at the "upper end" or "lower end" of the second feature may be in direct contact with the first feature, or indirect contact between the first and second features through an intermediate medium.

[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] See Figures 1-4As shown in the figure, this application discloses a positioning fixture for cutting edges on an automotive roof, including a frame 1. A positioning base 2 is detachably mounted on the frame 1. The upper surface of the positioning base 2 is formed with a profile that matches the shape of the roof, ensuring a stable fit when the roof is placed on the positioning base 2 and improving positioning stability. Additionally, a mounting through hole 3 is provided on the positioning base 2 at a position corresponding to the sunroof opening. A positioning component is also provided on the frame 1, passing through the mounting through hole 3. When the roof is placed and fitted onto the positioning base 2, the positioning component is used to press and limit the roof to a predetermined position near the circumferential edge of the sunroof opening, thereby achieving automatic positioning of the roof cutting position. Specifically, a support base plate 4 is provided on the frame 1 directly below the mounting through hole 3. Four support columns 5 are provided on the support base plate 4, and a mounting plate 6 is connected to the top of each support column 5. The positioning component is connected to the mounting plate 6. See the attached figure for details. Figure 3 and 4 The positioning assembly includes four first clamping units and four second clamping units. The four first clamping units correspond to the four straight wall positions of the skylight opening, and the four second clamping units correspond to the four arc-shaped corner positions of the skylight opening. After positioning, the first clamping blocks 7 of the four first clamping units and the second clamping blocks 8 of the four second clamping units form a positioning contour surface that matches the shape of the skylight opening. When cutting, the worker can cut a smooth and continuous cut surface by moving the blade along the positioning contour surface, which effectively increases the cutting speed and improves work efficiency. For more details, please refer to the appendix. Figure 3 In the above structure, the first pressing unit also includes a first sliding cylinder 9 horizontally arranged on the mounting plate 6 along the length or width direction of the skylight hole. A second sliding cylinder 10 is vertically arranged on the first slide plate of the first sliding cylinder 9. The end of the first pressing block 7 away from the edge of the skylight hole is connected to the second slide plate of the second sliding cylinder 10. In this structure, the four first sliding cylinders 9 are arranged opposite each other in pairs and can move telescopically along the length and width direction of the skylight hole. Each first pressing block 7 is connected to the first slide plate of the first sliding cylinder 9 through the vertically arranged second sliding cylinder 10, so that each first pressing block 7 can be vertically raised and lowered and laterally retracted, realizing flexible switching between the pressing and positioning position and the storage position. On the other hand, the second pressing unit also includes a tilting cylinder 11 vertically connected to the mounting plate 6. The end of the second pressing block 8 furthest from the edge of the skylight hole is connected to the tilting arm of the tilting cylinder 11. That is, the second pressing block 8 achieves switching between pressing and storage positions by tilting, independent of the driving structure of the first pressing block 7 and without interference. This allows for the flexible execution of multiple actions within the available space, ensuring the flexible operation of the four first pressing blocks 7 and the four second pressing blocks 8, thus improving positioning efficiency. In this embodiment, see the attached diagram. Figure 4Each first clamping unit also includes an L-shaped connecting plate 12. The horizontal plate of the L-shaped connecting plate 12 is connected to the first sliding plate. The vertical plate of the L-shaped connecting plate 12 has a vertically extending elongated through hole 13. A connecting screw (not shown in the figure) passes through the elongated through hole 13 and is used to connect and fix the second slide. The overall height of the second slide cylinder 10 can be adjusted by adjusting the position of the connecting screw in the elongated through hole 13, which is very convenient. In addition, in this embodiment, the frame 1 is a rectangular frame assembled from several square tubes, which has a simple structure and is lightweight. Preferably, the positioning base 2 here is made of fiberglass, which has the characteristics of being lightweight, high-strength, and corrosion-resistant. Multiple positioning plates 14 are connected to the top outer perimeter of the rectangular frame. Each positioning plate 14 is connected to a horizontally extending locking bolt 15. When the positioning base 2 is placed on top of the frame 1, the inner ends of each locking bolt 15 abut against the outer perimeter of the positioning base 2, thereby positioning the positioning base 2. When it is necessary to change the model of the positioning base 2, the locking bolts 15 are loosened to remove the positioning base 2 from the frame 1. After replacing it with a new positioning base 2, the locking bolts 15 are tightened again, which is very convenient. Furthermore, in this embodiment, four universal casters 16 are provided at the four corners of the bottom of the frame 1 to facilitate its movement. Any two adjacent universal casters 16 are equipped with brake components to further ensure the stability of the frame 1 during operation. In this embodiment, a recessed receiving groove 17 is provided on the positioning base 2 at the position corresponding to the ceiling reading light mounting hole. The receiving slot 17 is used to store utility knives, avoiding the time wasted searching for knives due to haphazard placement, thereby improving work efficiency. For ease of operation, a switch button 18 electrically connected to the positioning component is also provided on the frame 1. Specifically, the switch button 18 includes two buttons corresponding to the first clamping unit and the second clamping unit, respectively, enabling two-hand start and dual positioning clamping. After the ceiling is placed on the positioning base 2 in the set position, operating the switch button 18 will automatically clamp the positioning component in the corresponding position on the ceiling, making operation convenient and safe.

[0029] In the description of the embodiments of this application, it should be noted that the terms "below", "horizontal", "vertical", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0030] In the description of this application, the reference to terms such as "in this embodiment" indicates 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 this application. 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 a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automotive headliner trimming positioning tool, characterized by: The utility model provides a positioning base (2) is detachably arranged on the rack (1), the upper end face of positioning base (2) is formed with the profile surface that is matched with the top shape, the installation through -hole (3) is opened in the position of positioning base (2) corresponding with the top skylight hole, the rack (1) is still provided with the positioning assembly that is passed in installation through -hole (3), when the top is placed and is attached on positioning base (2), positioning assembly is used for the set position of pressing and limiting on the top and near the circumferential edge of skylight hole, to realize the automatic positioning of top cutting position.

2. The automotive headliner edge trimming positioning tooling of claim 1, wherein: The support bottom plate (4) is arranged on the rack (1) below the installation through -hole (3), the support bottom plate (4) is provided with a plurality of support columns (5), the top of each support column (5) is connected with the mounting plate (6), and the positioning assembly is connected to the mounting plate (6).

3. The automotive headliner edge trimming positioning tooling of claim 2, wherein: The positioning assembly includes four first pressing units and four second pressing units, and the four first pressing units correspond to the positions of the four straight walls of the skylight hole, and the four second pressing units correspond to the four arc-shaped corner positions of the skylight hole; the first pressing block (7) of the four first pressing units and the second pressing block (8) of the four second pressing units surround the positioning contour surface matched with the shape of the skylight hole.

4. The automotive headliner edge trimming positioning tooling of claim 3, wherein: The first pressing unit further includes a first sliding table air cylinder (9) horizontally arranged on the mounting plate (6) along the length or width direction of the skylight hole, a second sliding table air cylinder (10) vertically arranged on the first sliding plate of the first sliding table air cylinder (9), and one end of the first pressing block (7) away from the edge of the skylight hole is connected to the second sliding plate of the second sliding table air cylinder (10). The second pressing unit further includes a turnover air cylinder (11) vertically connected to the mounting plate (6), and one end of the second pressing block (8) away from the edge of the skylight hole is connected to the turnover arm of the turnover air cylinder (11).

5. The automotive headliner edge trimming positioning tooling of claim 4, wherein: Each first pressing unit further includes an L-shaped connecting plate (12), the horizontal plate of the L-shaped connecting plate (12) is connected to the first sliding plate, an elongated through hole (13) extending vertically is formed in the vertical plate of the L-shaped connecting plate (12), and a connecting screw for connecting and fixing the second sliding table air cylinder (10) is arranged in the elongated through hole (13).

6. The automotive headliner trim positioning tooling of any one of claims 1 to 5, wherein: The rack (1) is a rectangular frame assembled by a plurality of square tubes.

7. The automotive headliner edge trimming positioning tooling of claim 6, wherein: A plurality of positioning plates (14) are connected to the top outer peripheral wall of the rectangular frame, a locking bolt (15) extending horizontally is connected to each positioning plate (14), and when the positioning base (2) is placed on the top of the rack (1), the inner end of each locking bolt (15) is abuttingly limited on the outer peripheral wall of the positioning base (2).

8. The automotive headliner edge trimming positioning tool of claim 1, wherein: Four universal rollers (16) are further arranged on the bottom of the rack (1).

9. The automotive headliner edge trimming positioning tool of claim 1, wherein: An inner recessed accommodating groove (17) is formed in the position of the positioning base (2) corresponding to the reading lamp mounting hole of the top.

10. The automotive headliner edge trimming positioning tool of claim 1, wherein: A switch button (18) electrically connected with the positioning assembly is further arranged on the rack (1).

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