Machine cover edge covering system and door cover assembly line

Abstract

The utility model relates to a machine cover edge covering system and a door cover assembly line, a machine cover comprises a flat edge and a vertical edge, and the edge covering system comprises an edge pressing device used for pressing down and covering the flat edge; the edge rolling device is arranged at a downstream station of the edge pressing device and is used for rolling and covering the vertical edge; and the first conveying device is arranged between the edge pressing device and the edge rolling device and is used for conveying the machine cover subjected to edge rolling by the edge pressing device to the edge rolling device for edge rolling. The edge covering system adopts a two-procedure edge covering process, an edge pressing device is used for covering the flat edge of the machine cover in the first procedure, an edge rolling device is used for covering the vertical edge of the machine cover in the second procedure, and edge covering of the machine cover is achieved through combination of the two procedures. The edge pressing device and the edge rolling device are combined to specifically cover the flat edge and the vertical edge of the machine cover, so that the production takt is guaranteed, and the occupied area is saved. And the capability of the edge pressing device which is only suitable for the machine cover with the flat edge in the original production line can be fully utilized.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle hood assembly, and in particular to a hood hemming system and a door cover assembly line. Background Art

[0002] At present, in the automobile manufacturing industry, the wrap-around front hood has a nearly vertical edge, which cannot be achieved using a traditional press. This is because the traditional press presses the edge by moving up and down (such as Figure 4 As shown), the vertical pressure of the mold is decomposed into the horizontal direction and the force applied to the vertical edge is very small, which is much smaller than the pressure value required to form an effective hemming structure.

[0003] Therefore, in the related art, a method having the following characteristics is usually adopted: Figure 5 The side pressure die 13 shown in the figure is edged by a special machine or a rolling method to complete the edge process. However, both methods have their own disadvantages. The edge machine occupies a large area and is expensive, while the rolling equipment has a slow beat and high maintenance cost. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a hood hemming system and a door cover assembly line.

[0005] According to a first aspect of an embodiment of the present disclosure, a machine cover hemming system is provided, wherein the machine cover comprises a flat edge and a vertical edge, and the hemming system comprises: a hemming device for pressing down and hemming the flat edge; a rolling device for rolling and hemming the vertical edge, arranged at a downstream station of the hemming device; and a first conveying device for conveying the machine cover hemmed by the hemming device to the rolling device for hemming.

[0006] Optionally, the hemming system includes a receiving device, which is arranged at a downstream station of the hemming device and is used to receive the machine cover rolled by the hemming device, wherein the hemming device and the receiving device are arranged in parallel.

[0007] Optionally, the hemming system includes a first divided area, a second divided area and a third divided area, the edge pressing device is arranged in the first divided area, the receiving device is arranged in the second divided area, the first transmission device and the rolling device are arranged in the third divided area, wherein the second divided area includes a concave area, the third divided area includes a convex area, and the convex area matches the contour of the concave area.

[0008] Optionally, a second transmission device is provided between the receiving device and the hemming device, for conveying the machine cover of the hemming device to the receiving device.

[0009] Optionally, the machine cover includes an inner panel and an outer panel, and the edge binding system includes a splicing device for buckling the inner panel and the outer panel, and the splicing device is arranged at an upstream station of the edge pressing device.

[0010] Optionally, a third transmission device is provided between the assembling device and the edge pressing device, for conveying the fastened machine cover to the edge pressing device.

[0011] Optionally, the edge pressing device includes an upper die and a lower die, the lower die is used to place the flat edge, and the upper die is used to press down the flange of the flat edge.

[0012] Optionally, the rolling device includes a supporting tool and a rolling head, the supporting tool is used to place the vertical edge, and the rolling head is used to roll the flanging of the vertical edge at a variable angle.

[0013] Optionally, the machine cover includes two flat edges and two vertical edges, and the number of the rolling devices is greater than the number of the pressing devices.

[0014] Optionally, the number of the edge pressing device is one, and one edge pressing device can perform edge wrapping on two of the flat edges at the same time; the number of the edge rolling device is three, and one edge rolling device can perform edge wrapping on one of the vertical edges.

[0015] According to a second aspect of an embodiment of the present disclosure, there is provided a door cover assembly line, comprising the hood hemming system provided by the present disclosure.

[0016] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: the hemming system in the embodiment of the present disclosure adopts a two-sequence hemming process, the first sequence uses a hemming device to hem the flat edge of the machine cover, and the second sequence uses a hemming device to hem the vertical edge of the machine cover, and the hemming of the machine cover is achieved by combining the two sequences. The embodiment of the present disclosure adopts a combination of a hemming device and a hemming device to hem the flat edge and vertical edge of the machine cover in a targeted manner, which not only ensures the production cycle but also saves floor space. In addition, the capacity of the hemming device in the original production line, which was originally only applicable to machine covers with flat edges, can be fully utilized to avoid equipment waste.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] Figure 1 is a top view of a machine cover according to an exemplary embodiment.

[0020] Figure 2 is a front view of a machine cover according to an exemplary embodiment.

[0021] Figure 3 The present invention is a process diagram of hemming a flat edge by a hemming device according to an exemplary embodiment.

[0022] Figure 4 The present invention is a process diagram of hemming opposite edges of a hemming device according to an exemplary embodiment.

[0023] Figure 5 The figure is a process diagram of hemming opposite edges of a hemming machine according to an exemplary embodiment.

[0024] Figure 6 is a schematic diagram of a hood hemming system according to an exemplary embodiment.

[0025] Figure 7 is a layout diagram of a hood hemming system according to an exemplary embodiment.

[0026] Figure 8 The present invention is a process diagram of hemming opposite edges of a hemming device according to an exemplary embodiment.

[0027] Fig. 9 The present invention is a flow chart of hemming a machine cover by an hemming system according to an exemplary embodiment. DETAILED DESCRIPTION

[0028] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0029] The embodiments described in some embodiments of the present disclosure below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0030] The wrap-around front hood is a hood with vertical edges on both sides. Figure 1 and Figure 2The front and rear sides of the cover 100 are flat sides 101, and the left and right sides are vertical sides 102. The vertical sides 102 here refer to the sides extending nearly vertically from top to bottom. The flat sides 101 are relatively horizontal sides. At present, the hemming press cannot be applied to the wrapped cover. Only the hemming equipment or the hemming machine can be applied to the hemming of the wrapped cover, but they each have disadvantages. For example, the production cycle of the hemming equipment is slow, and the hemming machine occupies a large area.

[0031] Therefore, the present disclosure proposes a suitable edge binding system for the cover 100 including the flat edge 101 and the vertical edge 102, which can well solve the above-mentioned problems.

[0032] Specifically, refer to Figure 6 The hemming system includes a hemming device 10, a hemming device 20 and a first transmission device 30. The hemming device 10 is used to press down the flat edge 101, such as Figure 3 As shown, on the left side, the edge pressing device presses the flat edge 101 downward in the direction indicated by the thick arrow in the figure until the hemming shown on the right side of the figure is achieved; the hemming device 20 is arranged at the downstream station of the edge pressing device 10, that is, the cover 100 passes through the station where the edge pressing device is located for hemming and then goes to the station where the hemming device 20 is located. The hemming device 20 is used to roll and hem the opposite edge 102, as shown in FIG. Figure 8 The hemming process of the hemming device 20 against the edge 102 is shown; the first transmission device 30 is arranged between the hemming device 10 and the hemming device 20, and is used to transport the machine cover 100 hemmed by the hemming device 10 to the hemming device 20 for hemming. It can be understood that when the machine cover 100 is hemmed, both the hemming device 10 and the hemming device 20 will participate in it, and the two are used in combination to realize the hemming work of the entire machine cover.

[0033] The hemming system in the disclosed embodiment adopts a two-sequence hemming process. The first sequence uses the hemming device 10 to hem the flat edge 101 of the machine cover 100, and the second sequence uses the hemming device 20 to hem the vertical edge 102 of the machine cover 100. The hemming of the machine cover is achieved by combining the two sequences. The disclosed embodiment adopts a combination of the hemming device 10 and the hemming device 20 to hem the flat edge 101 and the vertical edge 102 of the machine cover 100 in a targeted manner, which not only ensures the production cycle but also saves floor space. In addition, the capacity of the hemming device in the original production line, which was originally only applicable to machine covers with flat edges, can be fully utilized to avoid equipment waste.

[0034] In the embodiment of the present disclosure, the hemming system may include a receiving device 40, which is arranged at a downstream station of the hemming device 20 and is used to receive the machine cover 100 rolled by the hemming device 20. The hemming device 20 and the receiving device 40 are arranged in parallel. It should be noted that the upstream and downstream in the embodiment of the present disclosure refer to the order of the processes, rather than limiting the positional relationship. Figure 6 , parallel refers to the up and down direction in the figure. The edge rolling device 20 occupies a small area and can be arranged in parallel with the receiving device 40, which can make full use of the space gap, save the floor space, reduce the use of new sites, and save development costs. In the embodiment of the present disclosure, since the edge pressing device 10 occupies a large space, the edge pressing device 10 and the receiving device 40 can be arranged in the same column. The same column refers to Figure 6 The left and right direction in .

[0035] In the embodiments of the present disclosure, "in the same row" and "in parallel" both refer to the approximate arrangement position, and do not strictly mean to be arranged in a straight line, but refer to the approximate layout relationship in space. Figure 7 , showing the layout of each area of ​​the hemming system. Specifically, the hemming system may include a first divided area 1, a second divided area 2 and a third divided area 3, the hemming device 10 may be arranged in the first divided area 1, the receiving device 40 may be arranged in the second divided area 2, the first transmission device 30 and the hemming device 20 may be arranged in the third divided area 3, wherein the second divided area 2 includes a recessed area 201, the third divided area 3 includes a protruding area 301, and the protruding area 301 matches the contour of the recessed area 201. The hemming device 20 is arranged in an area that can be matched with other areas to maximize space utilization, save floor space, shorten the distance between each workstation, and improve production rhythm.

[0036] In order to improve the automation level of the hemming system, refer to Figure 6 A second transmission device 50 may be provided between the receiving device 40 and the hemming device 20, for conveying the cover 100 of the hemming device 20 to the receiving device 40, that is, the second transmission device 50 is located at a downstream station of the hemming device 20 and at an upstream station of the receiving device 40. The second transmission device 50 may be shared with the first transmission device 30 or may be provided separately. To ensure a compact layout, the second transmission device 50 may also be provided in the second divided area 2.

[0037] Reference Figures 3 to 5 The cover 100 includes an inner plate 110 and an outer plate 120. Figure 6 The hemming system may include a joining device 60 for buckling the inner panel 110 and the outer panel 120 . The joining device 60 is arranged at an upstream station of the edge pressing device 10 , so that the buckled machine cover 100 is conveyed to the joining device 60 .

[0038] Among them, a third transmission device 70 may be provided between the joining device 60 and the edge pressing device 10, for conveying the fastened machine cover 100 to the edge pressing device 10, that is, the third transmission device 70 is located at the downstream station of the joining device 60 and at the upstream station of the edge pressing device 10. In the disclosed embodiment, the first transmission device 30, the second transmission device 50 and the third transmission device 70 here may be a conveyor belt, or may be a handling robot in order to reduce the occupied area. The robot has strong flexibility and can be arranged in a wide range of options, so it is easy to be arranged in any suitable narrow space.

[0039] In the present disclosure, refer to Figure 3 The edge pressing device 10 may include an upper die 11 and a lower die 12, wherein the lower die 12 is used to place the flat edge 101, and the upper die 11 is used to press down the flange of the flat edge 101. Figure 3 In the process, the flange is pressed from an inclined angle to a zero degree angle under the action of the upper die 11, thereby achieving hemming.

[0040] In the present disclosure, refer to Figure 8 As shown, the hemming device 20 may include a supporting tool 21 and a rolling head 22, wherein the supporting tool 21 is used to place the vertical edge 102, and the rolling head 22 is used to roll the vertical edge 102 at a variable angle. Figure 8 In the process, the rolling head 22 presses the flange from one angle to another until it is pressed to an angle close to zero, completing the hemming. During the hemming process, the angle of the rolling head 22 follows the angle of the flange, so that a suitable positive pressure can be provided to the flange to meet the hemming requirements. The hemming device 20 can be a hemming robot, which has high flexibility and ensures the hemming effect of the vertical edge 102. The rolling head 22 can be reused and has high flexibility.

[0041] When the cover 100 is Figure 1-2 When the two flat edges 101 and the two vertical edges 102 are shown in the figure, in the embodiment of the present disclosure, the number of the hemming devices 20 can be set to be greater than the number of the edge pressing devices 10. This is because the production rhythm of the hemming device 20 is slower than that of the edge pressing device 10. Setting a larger number of the hemming devices 20 can compensate for the influence of the rolling station on the production rhythm, so that the production rhythm of the entire production line is guaranteed.

[0042] In one embodiment, the number of the edge holding device 10 can be one, and one edge holding device 10 can hem two flat edges 101 at the same time. The number of the hemming devices 20 can be three, and one hemming device 20 can hem one vertical edge 102. Through this arrangement, the production rhythm of the station where the edge holding device 10 is located can be kept consistent with the production rhythm of the station where the hemming device 20 is located. Of course, it is understandable that the number of edge holding devices 10 and hemming devices 20 can also be adjusted according to the actual production rhythm.

[0043] In order to facilitate the understanding of this scheme, Fig. 9 , briefly describe the working process of the cover edge wrapping system provided by the embodiment of the present disclosure. The cover edge wrapping process is as follows:

[0044] In S1, the inner plate 110 and the outer plate 120 of the machine cover 100 are fastened together by the assembling device 60, and then the fastened machine cover 100 is transferred to the station where the edge pressing device 10 is located by the third transfer device 70;

[0045] In S2, the flat edge 101 of the cover 100 is pressed down and hemmed by the hemming device 10, and then the cover 100 with the hemmed flat edge is placed to the station where the hemming device 20 is located by the first transmission device 30;

[0046] In S3, the vertical edge 102 of the cover 100 is rolled and hemmed by the hemming device 20, and then the cover 100 with all hemmed edges is placed on the receiving device 40 by the second transmission device 50;

[0047] In S4, the machine cover is taken off the production line at the receiving device 40, thus completing the whole hemming process.

[0048] According to a second aspect of the embodiment of the present disclosure, a door cover assembly line is provided, including the above-mentioned hood hemming system, and having all the beneficial effects of the above-mentioned hood hemming system, which will not be repeated here. The door cover assembly line may also include an electric control system for controlling the hood hemming system or other processing systems.

[0049] In the above detailed description, reference is made to the accompanying drawings, which illustrate specific aspects of the present disclosure that can be practiced by way of illustration. In this regard, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating directions or representing positional relationships, can be used with reference to the orientation of the described figures. Since the components of the described device can be positioned in a plurality of different orientations, directional terms can be used for illustrative purposes rather than restrictive. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concepts of the present disclosure. Therefore, the following detailed description should not be considered in a limiting sense.

[0050] It should be understood that, unless otherwise specifically noted, the features of some embodiments of the various present disclosures described herein may be combined with each other. As used herein, the term "and / or" includes any one of the related listed items and any combination of any two or more; similarly, "at least one of . . . " includes any one of the related listed items and any combination of any two or more.

[0051] It should be understood that, unless otherwise clearly specified and limited, the terms "joining", "attaching", "installing", "connecting", "connecting", "fixing" and the like used in the embodiments of the present disclosure should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0052] In addition, the term "above" used in relation to a component, element or material layer formed "above" or located "above" a surface may be used herein to indicate that the component, element or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements or layers are arranged between the surface and the component, element or material layer. However, the term "above" used in relation to a component, element or material layer formed "above" or located "above" a surface may also optionally have a specific meaning: the component, element or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, such as in direct contact with the surface.

[0053] Although terms such as "first", "second" and "third" can be used herein to describe various components, parts, regions, layers or sections, these components, parts, regions, layers or sections are not limited to these terms. On the contrary, these terms are only used to distinguish one component, component, region, layer or section from another component, component, region, layer or section. Therefore, without departing from the teachings of each example, the first component, component, region, layer or section mentioned in the examples described herein may also be referred to as the second component, component, region, layer or section. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may expressly or implicitly include at least one of the features. In the description herein, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] It should be understood that spatially relative terms such as "above", "upper", "below", and "lower" are used herein to describe the relationship of one element to another element shown in the figures. In addition to the orientation depicted in the drawings, such spatially relative terms are also intended to include different orientations of the device in use or operation. For example, if the device in the drawings is turned over, the element described as being "above" or "upper" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" includes both upper and lower orientations. The device may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0055] In addition, the word "exemplary" is used herein to indicate serving as an example, instance, or diagram. Any aspect or design described as "exemplary" in this article is not necessarily understood to be advantageous compared to other aspects or designs. On the contrary, the use of the word exemplary is intended to present concepts in a specific way. As used herein, the term "or" is intended to represent an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clear from the context, "X applies A or B" is intended to represent any one of the natural inclusive arrangements. That is, if X applies A; X applies B; or X applies both A and B, "X applies A or B" is satisfied under any of the aforementioned examples. In addition, unless otherwise specified or clearly pointed to a singular form from the context, the articles "one" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0056] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art after reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise noted, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific functions of the described components, even if the structure is not equivalent to the disclosed structure. In addition, although the specific features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and conducive to any given or specific application. In addition, with respect to "including", "having", "having", "having", or variations thereof used in the specific embodiments or claims, such terms are intended to be inclusive in a manner similar to the term "comprising".

[0057] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0058] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A machine cover hemming system, the machine cover comprising a flat edge and a vertical edge, characterized in that: The hemming system comprises: A pressing device, used for pressing down and wrapping the flat edge; A rolling device, disposed at a downstream station of the edge pressing device, for rolling and hemming the vertical edge; and The first transmission device is arranged between the edge pressing device and the rolling device, and is used for conveying the machine cover after edge wrapping by the edge pressing device to the rolling device for edge wrapping.

2. The hood hemming system according to claim 1, characterized in that: The hemming system comprises a receiving device, which is arranged at a downstream station of the hemming device and is used to receive the machine cover rolled by the hemming device, wherein the hemming device and the receiving device are arranged in parallel.

3. The hood hemming system according to claim 2, characterized in that: The hemming system includes a first divided area, a second divided area and a third divided area, the edge pressing device is arranged in the first divided area, the receiving device is arranged in the second divided area, the first transmission device and the rolling device are arranged in the third divided area, wherein the second divided area includes a concave area, the third divided area includes a convex area, and the convex area matches the contour of the concave area.

4. The hood hemming system according to claim 2, characterized in that: A second transmission device is provided between the receiving device and the hemming device, for conveying the machine cover of the hemming device to the receiving device.

5. The hood hemming system according to claim 1, characterized in that: The machine cover comprises an inner panel and an outer panel, and the edge binding system comprises a joining device for buckling the inner panel and the outer panel, and the joining device is arranged at an upstream station of the edge pressing device.

6. The hood hemming system according to claim 5, characterized in that: A third transmission device is provided between the assembling device and the edge pressing device, and is used to transport the fastened machine cover to the edge pressing device.

7. The hood hemming system according to claim 1, characterized in that: The edge pressing device comprises an upper die and a lower die, wherein the lower die is used for placing the flat edge, and the upper die is used for pressing down the flange of the flat edge.

8. The hood hemming system according to claim 1, characterized in that: The hemming device comprises a supporting tool and a rolling head, wherein the supporting tool is used to place the vertical edge, and the rolling head is used to roll the flanging of the vertical edge at a variable angle.

9. The hood hemming system according to any one of claims 1 to 8, characterized in that: The machine cover comprises two flat edges and two vertical edges, and the number of the rolling devices is greater than the number of the pressing devices.

10. The hood hemming system according to claim 9, characterized in that: The number of the edge pressing device is one, and one edge pressing device can perform edge wrapping on two of the flat edges at the same time. The number of the edge rolling device is three, and one edge rolling device can perform edge wrapping on one of the vertical edges.

11. A door cover assembly line, characterized in that: The invention comprises the hood edging system according to any one of claims 1-10.

Images