Floating roof unloading device for stamped automotive exterior roof parts

Abstract

This utility model discloses a floating roof unloading device for stamped automotive exterior roof parts, belonging to the field of automotive parts manufacturing process equipment design and manufacturing technology. It provides a floating roof unloading device for stamped automotive exterior roof parts with relatively good stability and guaranteed unloading quality. The floating roof unloading device includes a drive air source, a cylinder, and a cylinder rod. The cylinder rod outputs driving force through the cylinder in cooperation with the drive air source. The floating roof unloading device also includes a front floating roof assembly, a rear floating roof assembly, and a middle composite flexible floating roof assembly. The front floating roof assembly, the rear floating roof assembly, and the middle composite flexible floating roof assembly are respectively connected to the cylinder rod at corresponding positions. During the unloading process of the stamped exterior roof parts, each part of the stamped exterior roof parts located in the stamping die is simultaneously ejected from the stamping die by the front floating roof assembly, the rear floating roof assembly, and the middle composite flexible floating roof assembly at corresponding positions for unloading.

Description

Technical Field

[0001] This utility model relates to a floating roof unloading device, and more particularly to a floating roof unloading device for stamping and forming automotive exterior roof parts, belonging to the field of automotive parts manufacturing process equipment design and manufacturing technology. Background Technology

[0002] During the molding process of automotive exterior body panels, particularly the roof, the surrounding contours and sunroof area involve trimming, flanging, and shaping. After molding, the formed contours, due to plastic or elastic deformation, can cause the product to become stuck in the molded insert area. Current test results show that the left and right contours exhibit springback defects, corner deformation, and dents. Under stress, the surrounding contours are prone to getting stuck on the punch or lower die due to elastic deformation. To avoid these issues, the industry uses self-made floating top unloading devices with appropriately designed ejection mechanisms. However, because the roof has a symmetrical structure relative to its centerline, inconsistencies in the precision of the symmetrical parts on the left and right sides of the unloading devices can occur due to air pressure fluctuations, adjustment errors, and assembly errors, affecting the product's appearance accuracy.

[0003] Currently, conventional self-made floating roof unloaders on the market use the same structure for both the front and rear floating roof units, and the middle floating roof unit is generally designed as an independent unit. This structural design leads to difficulties in arranging the mold structure space. Some manufacturers integrate two floating roof units onto a single bracket, which can meet the unloading requirements, but due to manufacturing, assembly, and subsequent wear factors, the two floating roof units at both ends can not only cause asynchronous operation of the ejector components, but also cause elastic deformation or even breakage of the bracket under extreme stamping conditions.

[0004] The self-made floating roof unloader mainly relies on an air source to drive a cylinder, which pushes the cylinder rod. The cylinder rod is equipped with a profile insert. Through the pushing and pulling action of the profile insert on the product, the product is unloaded, ejected, and reset. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a floating roof unloading device for stamped parts of automobile exterior roofs with relatively good stability and good unloading quality.

[0006] The technical solution adopted to solve the above-mentioned technical problems is: a floating roof unloading device for stamped parts of automotive exterior roofs, including a driving air source, a cylinder and a cylinder rod. The cylinder rod outputs driving force through the cylinder in cooperation with the driving air source. The floating roof unloading device also includes a front floating roof assembly, a rear floating roof assembly and an intermediate composite flexible floating roof assembly. The front floating roof assembly, the rear floating roof assembly and the intermediate composite flexible floating roof assembly are respectively connected to the cylinder rod at the corresponding positions. During the unloading process of the stamped parts of the exterior roof, each part of the stamped parts of the exterior roof located in the stamping die is simultaneously ejected from the stamping die by the front floating roof assembly, the rear floating roof assembly and the intermediate composite flexible floating roof assembly at the corresponding positions.

[0007] Furthermore, the floating roof unloading device also includes corner floating roof components. The four corner positions of the outer cover stamping part located in the stamping die are ejected from the stamping die simultaneously by the corner floating roof components together with the front floating roof components, rear floating roof components and middle composite flexible floating roof components at the corresponding positions.

[0008] The preferred embodiment of the above scheme is that the corner floating roof assembly includes at least four sets of corner floating roof devices, with at least one set of corner floating roof devices arranged at each of the four corners of the stamping die via corresponding cylinder rods.

[0009] Furthermore, the front floating roof assembly includes at least two sets of front floating roof units, each set of front floating roof units being arranged at the front end of the stamping die through a cylinder rod at a corresponding position, which is adapted to the front profile of the outer cover stamping part.

[0010] The preferred embodiment of the above scheme is that the rear floating roof assembly includes at least two sets of rear floating roof units, and each set of rear floating roof units is arranged at the front end of the stamping die through a cylinder rod at a corresponding position, which is adapted to the rear end profile of the outer cover stamping part.

[0011] Furthermore, both the front-end floating roof component and the back-end floating roof component contain three sets of front-end floating roof units and three sets of back-end floating roof units.

[0012] The preferred embodiment of the above scheme is that the intermediate composite flexible floating roof assembly includes two sets of pre-tightened floating roof components. The two sets of pre-tightened floating roof components are arranged on both sides of the stamping die in accordance with the positions of the two side profiles of the outer cover stamping part. Each set of pre-tightened floating roof components is driven by a cylinder rod at a corresponding position in cooperation with the driving air source and the cylinder.

[0013] Furthermore, each pre-tightened floating roof assembly includes a connecting base frame and at least two sets of pre-tightened floating roof mechanisms. Each set of pre-tightened floating roof mechanisms is arranged on the connecting base frame in accordance with the corresponding side profile of the outer cover stamped part. Each connecting base frame is arranged on the cylinder rod at the corresponding position.

[0014] The preferred embodiment of the above scheme is that each pre-tightening floating roof mechanism includes a main frame of the floating roof, a pre-tightening adjustment and installation structure, a composite adjustment support structure, and a product insert-shaped floating roof. The main frame of the floating roof is flexibly arranged at the corresponding position of the connecting base frame through the pre-tightening adjustment and installation structure. The product insert-shaped floating roof is arranged on the main frame of the floating roof in an adjustable manner in at least two directions, namely longitudinal and transverse, through the composite adjustment support structure.

[0015] Furthermore, the pre-tightening adjustment installation structure includes a pre-tightening spring and an adjustment knob, and the composite adjustment support structure includes elastic shims, a transverse length adjustment plate, and a longitudinal length adjustment plate. Mounting slots extending along the length direction are provided on both the transverse and longitudinal length adjustment plates. The main frame of the floating roof is flexibly mounted on the connecting base frame through the pre-tightening spring and the adjustment knob. The transverse length adjustment plate is adjustablely arranged on the main frame of the floating roof along the length direction of the connecting base frame through its mounting slots and the elastic shims. The longitudinal length adjustment plate is adjustablely arranged on the transverse length adjustment plate along the width direction of the connecting base frame through its mounting slots. The product insert-shaped floating roof is arranged on the longitudinal length adjustment plate.

[0016] A vertically extending elastic film sensor or buffer spring is also installed between the horizontal length adjustment plate and the main frame of the floating roof.

[0017] The beneficial effects of this utility model are as follows: The technical solution provided in this application uses the existing driving air source as the unloading power, and sets up a floating roof unloading device including a front floating roof assembly, a rear floating roof assembly and a middle composite flexible floating roof assembly, and connects the front floating roof assembly, the rear floating roof assembly and the middle composite flexible floating roof assembly to the cylinder rods at the corresponding positions respectively; then, during the unloading process of the outer cover stamping part, each part of the outer cover stamping part located in the stamping die is simultaneously ejected from the stamping die by the front floating roof assembly, the rear floating roof assembly and the middle composite flexible floating roof assembly at the corresponding positions under the cooperation of the cylinder and the cylinder rod. Because the floating roof unloading device of this application sets the lifting and unloading components on both sides of the outer cover stamped part into a middle composite flexible floating roof assembly, it not only solves the problem of difficult arrangement when each component is set separately in the prior art, but also ensures the stability of the entire floating roof unloading device, especially the middle composite flexible floating roof assembly in the middle of the lifting part, since the middle composite flexible floating roof assembly is both a composite structure and flexible. At the same time, it can also effectively reduce the damage to the outer cover stamped part during the unloading process, thus achieving the goal of better ensuring the quality of unloading. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the floating roof unloading device for stamped automotive exterior roof parts, in the unloading state, according to the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the intermediate composite flexible floating roof component involved in the floating roof unloading device for stamped parts of automotive exterior roofs of this utility model.

[0020] Figure 3 This is a front view of the intermediate composite flexible floating roof assembly involved in the floating roof unloading device for stamped automotive exterior roof parts of this utility model.

[0021] The components in the diagram are labeled as follows: 1. Cylinder rod; 2. Outer top cover stamped part; 3. Corner floating roof device; 4. Front floating roof device; 5. Rear floating roof device; 6. Connecting base frame; 7. Floating roof device main frame; 8. Product insert surface floating roof device; 9. Preload spring; 10. Adjustment knob; 11. Elastic shim; 12. Lateral length adjustment plate; 13. Longitudinal length adjustment plate; 14. Mounting strip hole; 15. Detailed Implementation

[0022] like Figure 1 , Figure 2 as well as Figure 3This invention provides a floating roof unloading device for stamped automotive exterior roof parts, offering relatively good stability and ensuring high unloading quality. The floating roof unloading device includes a drive air source, a cylinder 1, and a cylinder rod 2. The cylinder rod 2 outputs driving force through the cylinder 1 in conjunction with the drive air source. The device also includes a front floating roof assembly, a rear floating roof assembly, and a middle composite flexible floating roof assembly, each connected to the cylinder rod 2 at a corresponding position. During the unloading process of the stamped exterior roof part 3, each part of the stamped exterior roof part 3 located within the stamping die is simultaneously ejected from the stamping die by the corresponding front floating roof assembly, rear floating roof assembly, and middle composite flexible floating roof assembly. The technical solution provided in this application uses the existing driving air source as the unloading power. It sets up a floating roof unloading device including a front floating roof assembly, a rear floating roof assembly, and a middle composite flexible floating roof assembly, and connects the front floating roof assembly, the rear floating roof assembly, and the middle composite flexible floating roof assembly to the cylinder rods at corresponding positions. Then, during the unloading process of the outer cover stamping part, each part of the outer cover stamping part located in the stamping die is simultaneously ejected from the stamping die by the front floating roof assembly, the rear floating roof assembly, and the middle composite flexible floating roof assembly at corresponding positions under the cooperation of the cylinder and the cylinder rod. Because the floating roof unloading device of this application sets the lifting and unloading components on both sides of the outer cover stamped part into a middle composite flexible floating roof assembly, it solves the problem of difficult arrangement when each component is set separately in the prior art. Furthermore, since the middle composite flexible floating roof assembly is both a composite structure and flexible, it not only ensures the stability of the entire floating roof unloading device, especially the middle composite flexible floating roof assembly in the lifting middle section, but also effectively reduces damage to the outer cover stamped part during ejection and unloading, thus achieving a better unloading quality. In conjunction with the outer cover stamped part 3 itself and the specific structure of the stamping die, to improve the reliability of unloading, the floating roof unloading device of this application also includes corner floating roof assemblies. The four corner positions of the outer cover stamped part 3 located within the stamping die are simultaneously ejected from the stamping die via the corner floating roof assemblies, along with the corresponding front floating roof assembly, rear floating roof assembly, and middle composite flexible floating roof assembly. The front-end floating roof assembly includes at least two sets of front-end floating roof devices 5. Each set of front-end floating roof devices 5 is arranged at the front end of the stamping die via a cylinder rod 2 at a corresponding position, adapting to the front profile of the outer top cover stamped part. The rear-end floating roof assembly includes at least two sets of rear-end floating roof devices 6. Each set of rear-end floating roof devices 6 is arranged at the front end of the stamping die via a cylinder rod 2 at a corresponding position, adapting to the rear profile of the outer top cover stamped part. In this case, the preferred structure is that the corner floating roof assembly includes at least four sets of corner floating roof devices 4, with at least one set of corner floating roof devices 4 arranged at each of the four corners of the stamping die via corresponding cylinder rods 2.The front-end floating roof component and the back-end floating roof component each contain three sets of front-end floating roof units 5 and back-end floating roof units 6 respectively.

[0023] Furthermore, as the main structural improvement of this application, in order to maximize the stability of the unloading device, ensure the unloading quality to the maximum extent, and simplify the structure of the intermediate composite flexible floating roof assembly as much as possible, the intermediate composite flexible floating roof assembly of this application includes two sets of pre-tightened floating roof component groups. The two sets of pre-tightened floating roof component groups are arranged on both sides of the stamping die, corresponding to the positions of the two side profiles of the outer cover stamped part. Each set of pre-tightened floating roof component groups is driven by the corresponding cylinder rod 2 in cooperation with the driving air source and the cylinder 1. Accordingly, each set of pre-tightened floating roof component groups of this application includes a connecting base frame 7 and at least two sets of pre-tightened floating roof mechanisms. Each set of pre-tightened floating roof mechanisms is arranged on the connecting base frame 7, corresponding to the positions of the corresponding side profiles of the outer cover stamped part. Each connecting base frame 7 is arranged on the cylinder rod 2 at the corresponding position. More specifically, each pre-tightening floating roof mechanism includes a main floating roof frame 8, a pre-tightening adjustment and installation structure, a composite adjustment support structure, and a product insert-shaped floating roof 9. The main floating roof frame 8 is flexibly arranged at the corresponding position of the connecting base frame 7 through the pre-tightening adjustment and installation structure. The product insert-shaped floating roof 9 is arranged on the main floating roof frame 8 in at least two adjustable directions, longitudinal and transverse, through the composite adjustment support structure. In this preferred configuration, the pre-tightening adjustment mounting structure includes a pre-tightening spring 10 and an adjustment knob 11, and the composite adjustment support structure includes an elastic pad 12, a transverse length adjustment plate 13, and a longitudinal length adjustment plate 14. Mounting slots 15 extending along the length direction are respectively provided on the transverse length adjustment plate 13 and the longitudinal length adjustment plate 14. The floating roof main frame 8 is flexibly mounted on the connecting base frame 7 through the pre-tightening spring 10 and in cooperation with the adjustment knob 11. The transverse length adjustment plate 13 is adjustablely arranged on the floating roof main frame 8 along the length direction of the connecting base frame through its mounting slots 15 and in cooperation with the elastic pad 12. The longitudinal length adjustment plate 14 is adjustablely arranged on the transverse length adjustment plate 13 along the width direction of the connecting base frame through its mounting slots 15. The product insert-shaped floating roof 9 is arranged on the longitudinal length adjustment plate 14. A vertically extending elastic thin-film sensor or buffer spring is also provided between the transverse length adjustment plate 13 and the floating roof main frame 8.

[0024] In summary, the technical solution provided in this application also has the following advantages:

[0025] The floating roof unloading device for automotive large body panel stamping dies, as applied in this application, has high flexibility and stability due to the installation of elastic thin film sensors and pre-tensioning springs. It can not only adjust the assembly position error, but also avoid product deformation during the unloading process due to increased cylinder pressure, thus having good application value.

[0026] Example 1

[0027] This application employs an adjustable pre-tightened floating roof structure, such as... Figure 2 , Figure 3 As shown, the bracket, i.e., the connecting base frame mentioned above, is bolted to the cylinder push-pull rod, i.e., the cylinder rod mentioned above. The left and right ends are symmetrical. A pre-tightening spring is installed on the main body of the self-made floating top device. The pre-tightening force of the spring is adjusted by adjusting the knob. The elastic shim is bolted to the lower end of the horizontal length adjustment plate, and the vertical length adjustment plate is bolted to the horizontal length adjustment plate. The product surface insert is bolted to the vertical length adjustment plate. In this way, not only can the position and angle of the horizontal and vertical length adjustment plates be adjusted according to the actual manufacturing and assembly requirements, but the fit between the product insert and the product surface can also be improved. The flexibility of its elastic element ensures that it can resist a certain elastic deformation during the stamping and unloading process, reducing the risk of bracket breakage.

Claims

1. A floating roof unloading device for stamped automotive exterior roof parts, comprising a drive air source, a cylinder (1) and a cylinder rod (2), wherein the cylinder rod (2) outputs driving force through the cylinder (1) in cooperation with the drive air source, characterized in that: The floating roof unloading device further includes a front floating roof assembly, a rear floating roof assembly, and a middle composite flexible floating roof assembly. The front floating roof assembly, the rear floating roof assembly, and the middle composite flexible floating roof assembly are respectively connected to the cylinder rod (2) at the corresponding positions. During the unloading process of the outer cover stamping part (3), each part of the outer cover stamping part (3) located in the stamping die is simultaneously ejected from the stamping die by the front floating roof assembly, the rear floating roof assembly, and the middle composite flexible floating roof assembly at the corresponding positions.

2. The floating roof unloading device for stamped parts of automotive exterior roofs according to claim 1, characterized in that: The floating roof unloading device also includes corner floating roof components. The four corner positions of the outer cover stamping part (3) located in the stamping die are ejected from the stamping die at the same time by the corner floating roof components together with the front floating roof components, rear floating roof components and middle composite flexible floating roof components at the corresponding positions.

3. The floating roof unloading device for stamped automotive exterior roof parts according to claim 2, characterized in that: The corner floating roof assembly includes at least four sets of corner floating roof units (4), with at least one set of corner floating roof units (4) arranged at each of the four corners of the stamping die via corresponding cylinder rods (2).

4. The floating roof unloading device for stamped automotive exterior roof parts according to claim 1, 2, or 3, characterized in that: The front floating roof assembly includes at least two sets of front floating roof units (5). Each set of front floating roof units (5) is arranged at the front end of the stamping die through a cylinder rod (2) at a corresponding position, which is adapted to the front end profile of the outer cover stamping part.

5. The floating roof unloading device for stamped automotive exterior roof parts according to claim 4, characterized in that: The rear floating roof assembly includes at least two sets of rear floating roof units (6). Each set of rear floating roof units (6) is arranged at the front end of the stamping die through a cylinder rod (2) at a corresponding position, which is adapted to the rear end profile of the outer cover stamping part.

6. The floating roof unloading device for stamped automotive exterior roof parts according to claim 5, characterized in that: The front-end floating roof component and the back-end floating roof component each contain three sets of front-end floating roof devices (5) and back-end floating roof devices (6).

7. The floating roof unloading device for stamped automotive exterior roof parts according to claim 3, characterized in that: The intermediate composite flexible floating roof assembly includes two sets of pre-tightened floating roof components. The two sets of pre-tightened floating roof components are arranged on both sides of the stamping die in accordance with the positions of the two side profiles of the outer cover stamping part. Each set of pre-tightened floating roof components is driven by the corresponding cylinder rod (2) in cooperation with the driving air source and the cylinder (1).

8. The floating roof unloading device for stamped automotive exterior roof parts according to claim 7, characterized in that: Each pre-tightened floating roof assembly includes a connecting base frame (7) and at least two sets of pre-tightened floating roof mechanisms. Each set of pre-tightened floating roof mechanisms is arranged on the connecting base frame (7) in accordance with the corresponding side profile of the outer cover stamping part. Each connecting base frame (7) is arranged on the cylinder rod (2) at the corresponding position.

9. The floating roof unloading device for stamped automotive exterior roof parts according to claim 8, characterized in that: Each pre-tightening floating roof mechanism includes a main floating roof frame (8), a pre-tightening adjustment and installation structure, a composite adjustment support structure, and a product insert-type floating roof (9). The main floating roof frame (8) is flexibly placed at the corresponding position of the connecting base frame (7) through the pre-tightening adjustment and installation structure. The product insert-type floating roof (9) is arranged on the main floating roof frame (8) in at least two adjustable directions, longitudinal and transverse, through the composite adjustment support structure.

10. The floating roof unloading device for stamped automotive exterior roof parts according to claim 9, characterized in that: The pre-tightening adjustment installation structure includes a pre-tightening spring (10) and an adjustment knob (11). The composite adjustment support structure includes an elastic pad (12), a transverse length adjustment plate (13), and a longitudinal length adjustment plate (14). The transverse length adjustment plate (13) and the longitudinal length adjustment plate (14) are respectively provided with mounting slots (15) extending along the length direction. The floating roof main frame (8) is flexibly laid on the connecting base frame (7) with the cooperation of the adjustment knob (11) and the pre-tightening spring (10). The transverse length adjustment plate (13) is arranged on the floating roof main frame (8) in an adjustable manner along the length direction of the connecting base frame with the cooperation of the elastic pad (12) and the mounting slots (15). The longitudinal length adjustment plate (14) is arranged on the transverse length adjustment plate (13) in an adjustable manner along the width direction of the connecting base frame with the mounting slots (15). The product insert-shaped floating roof (9) is arranged on the longitudinal length adjustment plate (14). An elastic thin-film sensor or buffer spring extending vertically is also provided between the horizontal length adjustment plate (13) and the main frame (8) of the floating roof.

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