A tooling for positioning and trimming car roof edges

Abstract

This utility model provides a positioning fixture for trimming car roof edges, including a frame. A positioning part is provided on the top plate of the frame. A first upper mold core and a first drive assembly for driving the first upper mold core to rise and fall are provided at one end of the frame's length direction. A second upper mold core and a second drive assembly for driving the second upper mold core to rise and fall and to translate along the length direction of the frame are provided at the other end of the frame's length direction. Contour surfaces for referencing the trimming position of the car roof edge are provided on the outer walls of the first and second upper mold cores. A control box for controlling the movement of the first and second drive assemblies is also provided on the frame. This utility model discloses a positioning fixture for trimming car roof edges, which can achieve automatic clamping and positioning during product trimming, ensuring the uniformity of the pressing position each time. Furthermore, the automated positioning method significantly improves work efficiency and reduces labor costs compared to manual clamping and positioning methods.

Description

Technical Field

[0001] This utility model relates to the field of automotive roof processing technology, and more specifically, to an automotive roof trimming and positioning fixture. Background Technology

[0002] Car headliners are made of a composite of base material and fabric. In actual vehicle assembly, to maintain the overall aesthetics of the interior, excess or irregularly shaped base material is often cut off from the windshield, rear window, and sunroof, and then the fabric is wrapped around it. The windshield and rear window, due to their complex shapes, high precision requirements, and long cutting lines, have always presented significant challenges in headliner production, especially at the front and rear ends where they connect with other interior components.

[0003] Currently, the trimming of car roof edges typically employs a simple clamping and limiting fixture, consisting of a support platform and a clamping module. During operation, the worker places the car roof to be trimmed on the support platform, then holds the clamping module with one hand, pressing and limiting it at the desired trimming position. With the other hand, the worker uses a utility knife to cut away excess substrate along the contour line of the clamping module. This trimming method requires manual clamping and positioning of the clamping module each time, which is not only time-consuming and labor-intensive but also prone to human error in positioning. This makes it difficult to guarantee the accuracy of the trimming position for each car roof trimming, resulting in poor uniformity after trimming. Utility Model Content

[0004] The problem solved by this utility model is to overcome at least one defect in the prior art and provide a car roof trimming and positioning fixture that can realize automatic clamping and positioning during product trimming, ensure the uniformity of the pressing position each time, greatly reduce labor costs, and significantly improve work efficiency compared with manual clamping and positioning methods.

[0005] To address the aforementioned problems, this utility model provides a car roof trimming and positioning fixture, comprising a frame. A positioning part for placing and positioning the car roof is provided on the top plate of the frame. One end of the frame along its length is provided with a first upper mold core for pressing and limiting one end of the car roof, and a first drive assembly for driving the first upper mold core to rise and fall. The other end of the frame along its length is provided with a second upper mold core for pressing and limiting the other end of the car roof, and a second drive assembly for driving the second upper mold core to rise and fall and translate along the length of the frame. The outer walls of the first and second upper mold cores are provided with contoured curved surfaces for reference in the car roof trimming position. The frame also includes a control box for controlling the actions of the first and second drive assemblies.

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

[0007] This utility model discloses a specialized automated positioning fixture for automotive roof trimming. It serves as a clamping and limiting device and a reference for the trimming surface during automotive roof trimming. Specifically, the frame is equipped with a first upper die, a first lower die, a second upper die, and a second lower die for clamping the two ends of the automotive roof. The two opposite ends of the first and second upper die have corresponding contoured cutting surfaces. After the roof ends are clamped and positioned by the corresponding die, the operator uses a utility knife to cut along the contoured surfaces on the corresponding upper die, ensuring a smooth and aesthetically pleasing cut. Furthermore, this automated clamping and positioning structure ensures that each clamping action is performed in the same position, guaranteeing consistency in the trimming position of each batch of products and improving the pass rate. The mechanized clamping mechanism replaces manual clamping, effectively improving work efficiency. More importantly, the second upper die in this application has a structure that allows for translational movement along the length of the frame and vertical lifting, facilitating the loading and unloading of automotive roofs without interference.

[0008] As an improvement, the positioning part includes a first lower mold core and a second lower mold core for supporting the two ends of the car roof respectively, and the first lower mold core and the second lower mold core correspond to the first upper mold core and the second upper mold core respectively; the positioning part also includes a sunroof positioning mold core for supporting and positioning the sunroof frame of the car roof. In the above improved structure, both the front and rear ends of the roof are automatically pressed and positioned by the upper and lower mold cores, realizing the overall positioning of the roof. In addition, the worker can simply follow the edge contour line of the corresponding mold core during cutting, which is very convenient.

[0009] In a further improvement, the first drive assembly includes two first lifting drive cylinders vertically connected to both sides of the frame in the width direction. The free ends of the piston rods of the two first lifting drive cylinders are respectively connected to both ends of the first upper mold core. A first limiting part is also provided between the first upper mold core and the frame to limit the descent height of the first upper mold core. In the above improved structure, the lifting and lowering of the pressing module is achieved by existing mature and stable drive cylinders, resulting in smooth and reliable driving. In addition, the setting of the first limiting part limits the descent height of the first upper mold core, preventing the car roof from being excessively compressed and deformed due to the first upper mold core descending too low.

[0010] In a further improvement, a portal frame is provided at one end of the frame near the first upper mold core. Each of the two columns of the portal frame is connected to a vertically extending first guide rail. Both ends of the first upper mold core are connected to first sliders for sliding engagement with the two first guide rails respectively. In this improved structure, the lifting and lowering of the first upper mold core is achieved through the portal frame, sliders, and guide rails, ensuring the smoothness of the lifting process and better guaranteeing straightness.

[0011] In a further improvement, the second drive assembly includes two second guide rails connected horizontally to both sides of the frame in the width direction. A second slider is slidably connected to each of the two second guide rails. A vertically arranged second lifting drive cylinder is connected to each of the two second sliders. The two ends of the second upper mold core are respectively connected to the free ends of the two second lifting drive cylinders. A translation drive cylinder for driving the movement of the two second sliders is also provided on both sides of the frame away from the portal frame in the width direction. In the improved structure described above, the second upper mold core is designed to be able to move horizontally along the length of the frame and rise vertically, which facilitates the loading and unloading of car roofs and reduces interference. This is because if a gate-shaped support is set at one end of the frame, it would be inconvenient to load and unload the roof if a gate-shaped support is also set at the other end. In this structure, during loading and unloading, the second upper mold core moves away from the gate-shaped support until it is misaligned with the second lower mold core. At this time, one end of the roof can be placed on the first lower mold core through the gate-shaped support, and the other end can fall automatically. Once the position of the roof is determined, the second upper mold core moves horizontally back to its original position above the second lower mold core, and finally descends to close with the second lower mold core. At the same time, the first upper mold core and the first lower mold core close with each other, achieving the clamping and limiting of the front and rear ends of the roof, which is very convenient.

[0012] In a further improvement, the second upper mold core and the frame support are also provided with a second limiting part for limiting the descent height of the second upper mold core. In the above improved structure, the setting of the second limiting part realizes the limitation of the descent height of the second upper mold core, avoiding the car roof from being excessively compressed and deformed due to the second upper mold core descent height being too low.

[0013] In a further improvement, the lower surfaces of both ends of the first and second upper mold cores along their length are provided with protruding positioning pins. Positioning blocks are respectively provided on the top plate of the frame at positions corresponding to each positioning pin, and each positioning block has a positioning hole on its upper surface for inserting the corresponding positioning pin. In this improved structure, the positioning pins and positioning holes ensure that the upper mold core is positioned and limited by the positioning pins before descending to contact the car roof, thus providing a guiding function and ensuring the accuracy of the final pressing position and the cutting edge contour of the pressing module.

[0014] In a further improvement, a lighting lamp is connected to the crossbeam of the portal frame. In this improved structure, the lighting lamp enhances the operator's field of vision during edge cutting, ensuring cutting efficiency.

[0015] In a further improvement, the bottom of the frame is equipped with casters. In the above-mentioned improved structure, the caster configuration makes the movement of the frame more effortless and convenient.

[0016] In a further improvement, the bottom of the frame is provided with two spaced-apart and parallel forklift slots. In this structure, the forklift slots allow for direct forklift transport when long-distance transport is required, and the forklift arm can extend into the slots during transport to improve stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the mold-closed state of the automotive roof trimming and positioning fixture of this utility model.

[0018] Figure 2 This is a schematic diagram of the open mold state of the automotive roof trimming and positioning tooling of this utility model.

[0019] Figure 3 for Figure 2 Another structural diagram of the automotive roof trimming and positioning tooling in the mold opening state from another angle;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point X in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Frame; 2. First upper mold core; 3. Second upper mold core; 4. Control box; 5. First lower mold core; 6. Second lower mold core; 7. Sunroof positioning mold core; 8. First lifting drive cylinder; 9. Portal bracket; 10. First guide rail; 11. First slider; 12. Second guide rail; 13. Second slider; 14. Second lifting drive cylinder; 15. Translation drive cylinder; 16. Positioning pin; 17. Positioning block; 18. Lighting lamp; 19. Roller; 20. Forklift slot; 21. Positioning protrusion; 22. Adjusting bolt; 23. Safety light curtain. Detailed Implementation

[0023] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] See appendix Figures 1-4 This utility model provides a car roof trimming and positioning fixture, which includes a frame 1. Specifically, the frame 1 includes a rectangular frame assembled from several square tubes, and a top plate is installed on the top of the rectangular frame. The top plate is provided with a positioning part for placing and positioning the car roof. One end of the frame 1 along its length is provided with a first upper mold core 2 for pressing and limiting one end of the car roof and a first drive assembly for driving the first upper mold core 2 to rise and fall. The other end of the frame 1 along its length is provided with a second upper mold core 3 for pressing and limiting the other end of the car roof and a second drive assembly for driving the second upper mold core 3 to rise and fall and translate along the length of the frame 1. The outer walls of the first upper mold core 2 and the second upper mold core 3 are provided with contoured curved surfaces for reference of the car roof trimming position. The frame 1 is also provided with a control box 4 for controlling the operation of the first drive assembly and the second drive assembly.

[0027] More specifically, the positioning part in this embodiment includes a first lower mold core 5, a second lower mold core 6, and a sunroof positioning mold core 7 for supporting the two ends of the car roof respectively. The first lower mold core 5 and the second lower mold core 6 correspond to the first upper mold core 2 and the second upper mold core 3 respectively. The sunroof positioning mold core 7 is used to support and position the sunroof frame of the car roof, thereby further improving the stability of the car roof after positioning. In addition, protruding positioning protrusions 21 are provided on the upper surfaces of both ends of the first lower mold core 5, and these positioning protrusions 21 match the through holes on one end of the car roof, further ensuring the uniformity of the car roof's placement position each time, and also playing a role in preventing errors.

[0028] Furthermore, in this embodiment, the first drive assembly includes two first lifting drive cylinders 8 vertically connected to one end of the frame 1 and located on both sides of its width direction. The free ends of the piston rods of the two first lifting drive cylinders 8 are respectively connected to both ends of the first upper mold core 2. The first lifting drive cylinder 8 in this structure can be one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0029] In addition, in the above structure, a first limiting part for limiting the descent height of the first upper mold core 2 is provided between the first upper mold core 2 and the top plate of the frame 1. Specifically, a first limiting part is provided between the two ends of the first upper mold core 2 in the length direction and the frame 1, and each first limiting part includes two adjusting bolts 22 spaced apart in the width direction. Each adjusting bolt 22 is screwed onto the top plate of the frame 1. The descent height of the first upper mold core 2 can be adjusted by adjusting the height of the adjusting bolts 22, so as to avoid the first upper mold core 2 from being too low and causing the car roof to be excessively compressed and deformed.

[0030] In this embodiment, in order to ensure the smooth up-and-down movement of the first upper mold core 2, a portal frame 9 is connected to one end of the frame 1 near the first upper mold core 2. Vertically extending first guide rails 10 are connected to the two columns of the portal frame 9 respectively. First sliders 11 are connected to the two ends of the first upper mold core 2 respectively. That is, the first upper mold core 2 slides on the two first guide rails 10 through the two first sliders 11.

[0031] For others, see Appendix Figure 1 , 2 In this embodiment, the second driving component includes two second guide rails 12 connected horizontally to the other end of the frame 1 and located on both sides of its width direction. Each of the two second guide rails 12 has a second slider 13 slidably connected to it. Each of the two second sliders 13 has a vertically arranged second lifting drive cylinder 14 connected to it. The two ends of the second upper mold core 3 are respectively connected to the free ends of the two second lifting drive cylinders 14. At the end of the frame 1 away from the portal frame 9 and on both sides of its width direction, translation drive cylinders 15 are also provided for driving the movement of the two second sliders 13 respectively. In this structure, the horizontal movement and vertical lifting of the second upper mold core 3 are achieved through the translation drive cylinders 15 and the second lifting drive cylinders 14, so that the car roof will not interfere with the second upper mold core 3 during loading and unloading.

[0032] Similarly, in the above structure, to ensure that the second upper mold does not damage the car roof during its descent, the descent stroke of the second upper mold core 3 needs to be limited. In this embodiment, a second limiting part for limiting the descent height of the second upper mold core 3 is also provided between the second upper mold core 3 and the bracket of the frame 1. More specifically, the second limiting part in this structure is the same as the first limiting part described above, both using adjusting bolts 22, and two adjusting bolts 22 are provided at both ends of the second upper mold core 3.

[0033] On the other hand, see Appendix Figure 3The lower surfaces of both ends of the first upper mold core 2 and the second upper mold core 3 along their length are provided with protruding positioning pins 16. Positioning blocks 17 are respectively provided on the top plate of the frame 1 at positions corresponding to each positioning pin 16. Each positioning block 17 has a positioning hole on its upper surface for inserting the corresponding positioning pin 16. With this structure, before the two upper mold cores descend and press together to almost contact the car roof, the positioning pins 16 on both sides pre-fit with the corresponding positioning holes, serving as a guide and ensuring the accuracy of the final pressing position of the two upper mold cores.

[0034] For others, see Appendix Figure 2 A horizontal mounting plate is connected to the crossbeam at the top of the portal frame 9, and a safety light curtain 23 is installed on the lower end face of the mounting plate. The light curtain is electrically connected to the first lifting drive cylinder 8. That is, when the safety light curtain 23 detects an abnormal signal in the area, the first upper mold core 2 will not descend, thus preventing the first upper mold core 2 from descending and causing dangers such as pinching or bumping the operator when the operator is adjusting the car roof at the end of the frame 1 near the first lower mold core 5. Safety light curtains 23 are also installed on both sides of the frame 1 near the second lower mold core 6. See Appendix Figure 3 .

[0035] On the other hand, see Appendix Figure 3 A lighting lamp 18 is also connected to the lower end of the mounting plate at the top of the gantry bracket 9, making the operator's field of vision clearer.

[0036] See appendix again Figure 1 To facilitate position adjustments of the entire device, rollers 19 are installed at the bottom of the frame 1. When the device needs to be adjusted a short distance, the frame 1 can be pushed directly. Specifically, four rectangular rollers 19 are installed at the bottom of the frame 1. Each roller 19 is a caster wheel, and the two rollers 19 located at either end of the length of the frame 1 are equipped with brake pads.

[0037] Two spaced-apart and parallel forklift slots 20 are provided at the bottom of the frame 1. When the entire device needs to be transported over a long distance, or when the ground is uneven and it is inconvenient to move it using the rollers 19, it can be directly transported by a forklift. The forklift arm is extended into the two forklift slots 20, and then the whole device can be lifted and transported. Preferably, in this structure, two parallel channel steels are provided at the bottom of the frame 1, and the openings of the two channel steels face downwards to form forklift slots 20 for the forklift arm to extend into.

[0038] In embodiments of this utility model, unless otherwise explicitly specified and limited, the "upper end" and "lower end" of the first feature and the second feature can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, the "lower end" and "lower side" of the first feature and the second feature can refer to the first feature being directly below or diagonally below the second feature, or simply indicating that the horizontal height of the first feature is less than that of the second feature. Additionally, terms such as "upper," "lower," "both sides," and "both ends," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. This is merely for ease 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 utility model.

[0039] In the description of this utility model, the reference to terms such as "this embodiment," "some embodiments," etc., 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 utility model. 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.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A positioning fixture for trimming and positioning automotive roof panels, characterized in that: It includes a frame (1), on the top plate of the frame (1) is a positioning part for placing and positioning the car roof, one end of the frame (1) in the length direction is provided with a first upper mold core (2) for pressing and limiting one end of the car roof and a first drive assembly for driving the first upper mold core (2) to rise and fall, the other end of the frame (1) in the length direction is provided with a second upper mold core (3) for pressing and limiting the other end of the car roof and a second drive assembly for driving the second upper mold core (3) to rise and fall and to translate along the length direction of the frame (1); the outer walls of the first upper mold core (2) and the second upper mold core (3) are provided with contoured curved surfaces for reference of the car roof cutting position; the frame (1) is also provided with a control box (4) for controlling the action of the first drive assembly and the second drive assembly.

2. The automotive roof trimming and positioning fixture according to claim 1, characterized in that: The positioning part includes a first lower mold core (5) and a second lower mold core (6) for supporting the two ends of the car roof respectively, and the first lower mold core (5) and the second lower mold core (6) correspond to the first upper mold core (2) and the second upper mold core (3) respectively; the positioning part also includes a sunroof positioning mold core (7) for supporting and positioning the sunroof frame of the car roof.

3. The automotive roof trimming and positioning fixture according to claim 1, characterized in that: The first drive assembly includes two first lifting drive cylinders (8) vertically connected to both sides of the frame (1) in the width direction. The free ends of the piston rods of the two first lifting drive cylinders (8) are respectively connected to the two ends of the first upper mold core (2). A first limiting part for limiting the descent height of the first upper mold core (2) is also provided between the first upper mold core (2) and the frame (1).

4. The automotive roof trimming and positioning fixture according to claim 3, characterized in that: A portal frame (9) is provided at one end of the frame (1) near the first upper mold core (2). The two columns of the portal frame (9) are connected to vertically extending first guide rails (10). The two ends of the first upper mold core (2) are connected to first sliders (11) for sliding cooperation with the two first guide rails (10) respectively.

5. The automotive roof trimming and positioning fixture according to claim 4, characterized in that: The second drive assembly includes two second guide rails (12) connected horizontally to both sides of the width direction of the frame (1). A second slider (13) is slidably connected to each of the two second guide rails (12). A vertically arranged second lifting drive cylinder (14) is connected to each of the two second sliders (13). The two ends of the second upper mold core (3) are respectively connected to the free ends of the two second lifting drive cylinders (14). A translation drive cylinder (15) for driving the movement of the two second sliders (13) is also provided on both sides of the frame (1) away from the portal bracket (9) along its width direction.

6. The automotive roof trimming and positioning fixture according to claim 5, characterized in that: The second upper mold core (3) and the frame (1) support are further provided with a second limiting part for limiting the descent height of the second upper mold core (3).

7. The automotive roof trimming and positioning fixture according to claim 6, characterized in that: The lower surfaces of both ends of the first upper mold core (2) and the second upper mold core (3) in the length direction are provided with protruding positioning pins (16). Positioning blocks (17) are respectively provided on the top plate of the frame (1) at positions corresponding to each positioning pin (16). The upper surface of each positioning block (17) is provided with positioning holes for the corresponding positioning pins (16) to be inserted.

8. The automotive roof trimming and positioning fixture according to claim 4, characterized in that: A lighting lamp (18) is connected to the crossbeam of the portal frame (9).

9. The automotive roof trimming and positioning fixture according to claim 1, characterized in that: The bottom of the frame (1) is provided with rollers (19).

10. The automotive roof trimming and positioning fixture according to claim 1 or 9, characterized in that: The bottom of the frame (1) is provided with two spaced and parallel forklift slots (20).

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