Positioning mechanism for edge rolling process and automobile production line

Abstract

The utility model provides a positioning mechanism and an automobile production line for a binding process, and the positioning mechanism for the binding process comprises a shaping part and a material pressing part. A shaping cavity for placing a door plate is formed in the shaping part; the material pressing surface of the material pressing part is arranged right opposite to the opening of the shaping cavity, and the material pressing surface can move in the direction close to the shaping cavity, so that the door plate can be clamped in the shaping cavity through the material pressing surface; one side of the material pressing part is rotatably connected with one side of the shaping part, so that the material pressing surface can move in a fan-shaped track relative to the shaping cavity. One side of the material pressing part is rotatably connected with one side of the shaping part, so that an integrated structure is formed between the shaping part and the material pressing part, the material pressing surface can move in a fan-shaped track relative to the shaping cavity, the original vertical track moving relation is replaced, the complexity of the original structure is greatly simplified, and then the occupied space during use is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hemming process, and particularly relates to a positioning mechanism for hemming process and an automobile production line. Background Art

[0002] In the automobile manufacturing process, in order to improve the assembly fit degree between automobile components, it is necessary to perform hemming operation on automobile door panels to ensure the quality of the manufactured door panels.

[0003] In the existing automobile door panel hemming process, the door panel is generally clamped by a set positioning fixture to achieve the positioning process of the door panel, which is convenient for subsequent hemming operation. However, the relative movement trajectories of the two clamping sides of the existing positioning fixture are generally in the vertical direction, and a separate driving device is required to realize the relative movement of the two clamping sides of the positioning fixture, resulting in a more complex setting method, which will occupy a large use space. At the same time, although the two clamping sides of some positioning fixtures are of an integrated structure, so that the two clamping sides of the positioning fixture are connected by a driving device, they still occupy a large use space, thus increasing the difficulty of setting the positioning fixture in the automobile production line.

[0004] Therefore, the existing positioning fixture for hemming process occupies a large space. Summary of the Utility Model

[0005] In view of the above problems, the utility model provides a positioning mechanism for hemming process and an automobile production line. Among them, a positioning mechanism for hemming process includes:

[0006] A shaping part, in which a shaping cavity for placing a door panel is arranged;

[0007] A blank holding part, the blank holding surface of which is arranged opposite to the opening of the shaping cavity, and the blank holding surface can move towards the direction close to the shaping cavity, so as to clamp the door panel in the shaping cavity through the blank holding surface;

[0008] One side of the blank holding part is rotatably connected with one side of the shaping part, so that the blank holding surface can move relative to the shaping cavity in a fan-shaped trajectory.

[0009] In some specific embodiments, it further includes:

[0010] A rotating part, on which a first connection end and a second connection end are arranged;

[0011] The first connection end is connected with one side of the shaping part, the second connection end is connected with one side of the blank holding part, and the first connection end and the second connection end can perform an opening and closing movement in a fan-shaped trajectory.

[0012] In some specific embodiments thereof, the shaping part includes:

[0013] A fixed plate, one side of the fixed plate is connected to the first connection end of the rotating part;

[0014] A forming die, the forming die is arranged on the fixed plate, and the shaping cavity is formed through the forming die.

[0015] In some specific embodiments thereof, a limiting component is arranged on one side of the forming die;

[0016] The limiting component can be abutted against the side of the door panel to position the door panel in the shaping cavity.

[0017] In some specific embodiments thereof, the blank holding part includes:

[0018] A connecting arm, one end of the connecting arm is connected to the second connection end of the rotating part;

[0019] A blank holding frame, the blank holding frame is arranged at the other end of the connecting arm, and the blank holding frame is arranged opposite to the shaping cavity, and a blank holding surface is formed on one side of the blank holding frame close to the shaping part.

[0020] In some specific embodiments thereof, the connecting arm is connected to the blank holding frame through a guide rod;

[0021] The guide rod can extend a preset distance to drive the blank holding surface to move towards the direction close to the shaping cavity.

[0022] In some specific embodiments thereof, the rotating part includes:

[0023] A fixed arm, one end of the fixed arm forms the first connection end;

[0024] A rotating arm, one end of the rotating arm is rotatably arranged on the fixed arm, and the end of the rotating arm far from the fixed arm forms the second connection end.

[0025] In some specific embodiments thereof, the rotating part further includes:

[0026] A driving cylinder, the driving cylinder is arranged on one side of the rotating arm;

[0027] The driving end of the driving cylinder is connected to the rotating arm through a transmission component, so that the driving cylinder can drive the rotating arm to rotate.

[0028] In some specific embodiments thereof, one end of the rotating arm is rotatably arranged at the end of the fixed arm far from the shaping part.

[0029] An automobile production line based on the same concept includes a positioning mechanism for hemming process as described in any of the above specific embodiments.

[0030] The positioning mechanism for hemming process of the present utility model can pre-place the door panel through the shaping cavity of the shaping part, and can press the door panel tightly in the shaping cavity through the pressing surface of the pressing part, thereby completing the positioning of the door panel. Among them, one side of the pressing part is rotatably connected to one side of the shaping part, so that an integral structure is formed between the shaping part and the pressing part, and the pressing surface can move along a fan-shaped trajectory relative to the shaping cavity, replacing the original vertical trajectory movement relationship, greatly simplifying the complexity of the original structure, and thus reducing the occupied space during use.

[0031] Since the automobile production line of the present utility model includes the above-mentioned positioning mechanism for hemming process, it has the same beneficial effects as the above-mentioned positioning mechanism for hemming process. Therefore, it will not be repeated here.

[0032] Other features and advantages of the present utility model will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification, claims and drawings. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 Shows a schematic diagram of the positioning mechanism for hemming process in the embodiment of the present utility model;

[0035] Figure 2 Shows a schematic diagram of another state of the positioning mechanism for hemming process in the embodiment of the present utility model.

[0036] In the figure, 100, shaping part; 110, die; 120, fixing plate; 130, limiting component; 200, pressing part; 210, pressing frame; 220, connecting arm; 221, guide rod; 300, rotating part; 310, fixed arm; 311, housing; 320, rotating arm; 330, driving cylinder; 331, transmission component. Detailed Embodiments

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] Referring to Figure 1 , the present utility model provides a positioning mechanism for a hemming process, including: a shaping part 100 and a blank holding part 200. A shaping cavity for placing a door panel is arranged in the shaping part 100; the blank holding surface of the blank holding part 200 is arranged opposite to the opening of the shaping cavity, and the blank holding surface can move towards the direction close to the shaping cavity, so that the door panel can be clamped in the shaping cavity through the blank holding surface; one side of the blank holding part 200 is rotatably connected to one side of the shaping part 100, so that the blank holding surface can move relative to the shaping cavity in a fan-shaped trajectory.

[0039] Specifically, the shaping part 100 and the blank holding part 200 are rotatably connected on one side. When the position of the shaping part 100 is fixed, the blank holding part 200 can rotate relative to the shaping part 100 in a fan-shaped trajectory with the connection part between the shaping part 100 and the blank holding part 200 as the axis. Among them, a shaping cavity is arranged on the shaping part 100, the opening of the shaping cavity is arranged on the side of the shaping part 100 close to the blank holding part 200, and a blank holding surface is arranged on the side of the blank holding part 200 close to the shaping part 100, and the blank holding surface is arranged opposite to the opening of the shaping cavity. When the blank holding part 200 rotates relative to the shaping part 100 in a fan-shaped trajectory with the connection part between the shaping part 100 and the blank holding part 200 as the axis, the blank holding surface of the blank holding part 200 can rotate relative to the shaping cavity of the shaping part 100 in a fan-shaped trajectory, so that the blank holding surface can cooperate with the shaping cavity to clamp the door panel. Referring to Figure 2 , after the door panel is placed in the shaping cavity of the shaping part 100, the blank holding part 200 is driven to drive the blank holding surface to rotate towards the direction close to the shaping cavity until it abuts against the side surface of the door panel departing from the shaping cavity, so that the door panel can be clamped in the shaping cavity, preparing for the subsequent hemming work. When the hemming operation is completed, the blank holding part 200 is driven to drive the blank holding surface to rotate away from the shaping cavity, and the door panel can be taken out of the shaping cavity. One side of the blank holding part 200 is rotatably connected to one side of the shaping part 100, forming an integrated structure between the shaping part 100 and the blank holding part 200. Moreover, the blank holding surface can move relative to the shaping cavity in a fan-shaped trajectory, replacing the original vertical trajectory movement relationship, greatly simplifying the complexity of the original structure and reducing the occupied space during use, so as to be conveniently arranged on an automobile production line.

[0040] In some specific embodiments of the present utility model, referring toFigure 1 , further comprising a rotating part 300. The rotating part 300 is provided with a first connection end and a second connection end; the first connection end is fixedly connected to one side of the shaping part 100, and the second connection end is fixedly connected to one side of the blank holding part 200. The first connection end and the second connection end are rotatably connected, so that the first connection end and the second connection end can perform a rotational opening and closing movement in a fan-shaped trajectory. Among them, since the shaping part 100 is fixedly arranged, the first connection end connected to the shaping part 100 is also fixedly arranged, so that the second connection end can rotate relative to the first connection end in a fan-shaped trajectory, and then drive the blank holding part 200 connected to the second connection end to rotate together, thereby realizing the opening and closing between the blank holding surface of the blank holding part 200 and the shaping cavity of the shaping part 100. The structure is simple, and the blank holding surface can move relative to the shaping cavity in a fan-shaped trajectory, replacing the original vertical trajectory movement relationship, greatly simplifying the complexity of the original structure, and reducing the occupied space during use, so as to be easily arranged on the automobile production line.

[0041] In some specific embodiments of the present utility model, referring to Figure 1 , the shaping part 100 includes a fixing plate 120 and a die membrane 110. One side of the fixing plate 120 is connected to the first connection end of the rotating part 300. The fixing plate 120 can be fixed to an external plane through bolts, so as to fix the overall installation position of the shaping part 100, which is convenient for installation. And after the fixing plate 120 is fixed on the external plane, the installation position of the first connection end of the rotating part 300 connected to the fixing plate 120 will also be fixed together, so as to facilitate the second connection end to drive the blank holding part 200 to rotate. The die membrane 110 is arranged on the fixing plate 120, and a concave structure is arranged on the side of the die membrane 110 close to the blank holding part 200, so that a shaping cavity can be formed through the concave structure on the die membrane 110.

[0042] It should be noted that the specific manifestation of the concave structure of the die membrane 110, that is, the shape of the shaping cavity, is determined according to the door panel specifications, and different specifications of door panels correspond to different specific manifestations of the concave structure, that is, the shape of the shaping cavity.

[0043] In some specific embodiments of the present utility model, referring to Figure 1 , a limiting component 130 is arranged on one side of the die membrane 110; the limiting component 130 is arranged on the side surface of the fixing plate 120 close to the die membrane 110, and the end of the limiting component 130 away from the fixing plate 120 is arranged opposite to the top of the shaping cavity of the die membrane 110, so that the end of the limiting component 130 can abut against the side of the door panel placed in the shaping cavity, thereby playing a positioning role for the door panel in the shaping cavity. When the side of the door panel abuts against the end of the limiting component 130, it indicates that the door panel is placed in place in the shaping cavity, and subsequent clamping and hemming operations can be carried out.

[0044] Further, there are multiple limiting components 130, and the multiple limiting components 130 are symmetrically arranged around the forming die 110 on one side of the fixing plate 120 close to the forming die 110.

[0045] In some specific embodiments of the present invention, referring to Figure 1 , the blank holding part 200 includes: a connecting arm 220 and a blank holding frame 210. One end of the connecting arm 220 is connected to the second connection end of the rotating part 300; the blank holding frame 210 is arranged at the other end of the connecting arm 220. When the second connection end rotates relative to the first connection end, the connecting arm 220 and the blank holding frame 210 can be driven to rotate relative to the forming die 110 together. Moreover, the blank holding frame 210 is arranged opposite to the shaping cavity, and a blank holding surface is formed on the side of the blank holding frame 210 close to the shaping part 100. When the blank holding frame 210 approaches the shaping cavity through the second connection end, the blank holding surface can tightly press the door panel placed in the shaping cavity.

[0046] In some specific embodiments of the present invention, referring to Figure 2 , the connecting arm 220 is connected to the blank holding frame 210 through a guide rod 221; the guide rod 221 can extend a preset distance to drive the blank holding surface to move towards the direction close to the shaping cavity.

[0047] Specifically, one end of the guide rod 221 is connected to the end of the connecting arm 220 far from the second connection end, and the other end of the guide rod 221 is connected to the blank holding frame 210. The guide rod 221 can extend or shorten a preset distance, so as to be able to drive the blank holding frame 210 to approach or move away from the shaping cavity of the forming die 110 within a preset distance. After the second connection end drives the blank holding frame 210 to approach the shaping cavity in a fan-shaped trajectory, by extending the guide rod 221 by a preset distance, the blank holding frame 210 can be further driven to approach the shaping cavity of the forming die 110, thereby increasing the extrusion force on the door panel, ensuring the clamping effect on the door panel, and ensuring the normal working effect of the hemming work. When the hemming work is completed, first shorten the guide rod 221 by a preset distance to drive the blank holding frame 210 to move away from the shaping cavity of the forming die 110, reduce the extrusion force on the door panel, and then drive the blank holding frame 210 to move away from the shaping cavity in a fan-shaped trajectory through the second connection end, and the door panel can be taken out.

[0048] Further, there are multiple guide rods 221, and the multiple guide rods 221 are symmetrically arranged, so as to improve the stability of driving the blank holding frame 210 to extrude the door panel.

[0049] Further, the guide rod 221 is connected to the middle of the side of the blank holding frame 210 facing away from the shaping cavity, so as to ensure uniform force when the blank holding frame 210 extrudes the door panel and avoid damaging the door panel.

[0050] In some specific embodiments of the present invention, referring to Figure 1, the rotating part 300 includes: a fixed arm 310 and a rotating arm 320. One end of the fixed arm 310 forms a first connection end and is connected to one side of the fixed plate 120; one end of the rotating arm 320 is rotatably arranged on the fixed arm 310, so that the end of the rotating arm 320 away from the fixed arm 310 forms a second connection end and is connected to the connecting arm 220. The structure is simple and convenient to open and close, and while achieving the effect of clamping the door panel, it can greatly reduce the occupied space.

[0051] In some specific embodiments of the present utility model, referring to Figure 1 , the rotating part 300 further includes: a driving cylinder 330. The driving cylinder 330 is arranged on one side of the rotating arm 320; the driving end of the driving cylinder 330 is connected to the rotating arm 320 through a transmission assembly 331, and the operation of the driving cylinder 330 can drive the rotating arm 320 to rotate. When the piston of the driving cylinder 330 retracts, the driving end of the driving cylinder 330 will drive the rotating arm 320 to rotate towards the direction close to the fixed arm 310 through the transmission assembly 331. When the piston of the driving cylinder 330 extends, the driving end of the driving cylinder 330 will drive the rotating arm 320 to rotate away from the fixed arm 310 through the transmission assembly 331, thereby driving the pressure plate frame 210 to move relative to the die bed 110 in a fan-shaped trajectory.

[0052] Furthermore, referring to Figure 2 , a housing 311 is arranged at the end of the fixed arm 310 away from the fixed plate 120. One end of the housing 311 is connected to the fixed arm 310 and covers the connection part between the rotating arm 320 and the fixed arm 310. The side of the housing 311 close to the rotating arm 320 is an open structure for the connecting arm 220 to rotate. The driving cylinder 330 is arranged inside the other end of the housing 311. The driving cylinder 330 can be fixedly arranged through the housing 311 for convenient use. At the same time, the housing 311 can also protect the connection part between the fixed arm 310 and the rotating arm 320 to ensure that the rotating arm 320 can drive the pressure plate frame 210 to rotate smoothly.

[0053] In some specific embodiments of the present utility model, referring to Figure 1 , one end of the rotating arm 320 is rotatably arranged at the end of the fixed arm 310 away from the shaping part 100. The rotating arm 320 only needs to rotate at a small angle to complete the opening and closing movement of the pressure plate frame 210 relative to the die bed 110, thereby reducing the moving range of the pressure plate frame 210 and decreasing the probability of the pressure plate frame 210 deviating from the die bed 110 due to long-term use.

[0054] The present utility model further provides an automobile production line, comprising: a positioning mechanism for hemming process as described in any of the above specific embodiments. Since it includes the positioning mechanism for hemming process as described above, it has the same beneficial effects as the positioning mechanism for hemming process as described above. One side of the blank holding part 200 is rotatably connected to one side of the shaping part 100, so that an integral structure is formed between the shaping part 100 and the blank holding part 200. Moreover, the blank holding surface can move relative to the shaping cavity along a fan-shaped trajectory, replacing the original vertical trajectory movement relationship, greatly simplifying the complexity of the original structure, thereby reducing the occupied space during use, so as to facilitate the installation layout of the automobile production line.

[0055] Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A positioning mechanism for a hemming process, characterized in that, include: A shaping portion (100), wherein a shaping cavity for placing a door panel is provided in the shaping portion (100); A pressing portion (200), wherein a pressing surface of the pressing portion (200) is arranged facing the opening of the shaping cavity, and the pressing surface is movable toward the shaping cavity so as to clamp the door panel in the shaping cavity via the pressing surface; One side of the pressing portion (200) is rotatably connected to one side of the shaping portion (100), so that the pressing surface can move in a fan-shaped trajectory relative to the shaping cavity.

2. The positioning mechanism for the hemming process according to claim 1, wherein, Also includes: A rotating portion (300), wherein the rotating portion (300) is provided with a first connecting end and a second connecting end; The first connecting end is connected to one side of the shaping portion (100), and the second connecting end is connected to one side of the pressing portion (200). The first connecting end and the second connecting end can perform opening and closing movements in a fan-shaped trajectory.

3. The positioning mechanism for hemming process according to claim 2, characterized in that, The shaping portion (100) comprises: a fixed plate (120), one side of the fixed plate (120) being connected to the first connecting end of the rotating portion (300); The fetal membrane (110) is arranged on the fixing plate (120), and the shaping cavity is formed by the fetal membrane (110).

4. The positioning mechanism for the hemming process according to claim 3, characterized in that, A limiting component (130) is provided on one side of the fetal membrane (110); The limiting component (130) can abut against the side of the door panel to position the door panel in the shaping cavity.

5. The positioning mechanism for hemming process according to claim 2, wherein, The pressing portion (200) comprises: a connecting arm (220), one end of the connecting arm (220) being connected to the second connecting end of the rotating part (300); A material pressing frame (210) is provided at the other end of the connecting arm (220), and the material pressing frame (210) is provided opposite to the shaping cavity, and the material pressing surface is formed on the side of the material pressing frame (210) close to the shaping portion (100).

6. The positioning mechanism for hemming process according to claim 5, characterized in that, The connecting arm (220) is connected to the pressing frame (210) via a guide rod (221); The guide rod (221) can be extended by a preset distance to drive the pressing surface to move in a direction close to the shaping cavity.

7. The positioning mechanism for hemming process according to claim 2, wherein, The rotating part (300) comprises: a fixed arm (310), one end of the fixed arm (310) forming the first connection end; A rotating arm (320), one end of which is rotatably disposed on the fixed arm (310), and one end of the rotating arm (320) away from the fixed arm (310) forms the second connecting end.

8. The positioning mechanism for the hemming process according to claim 7, characterized in that, The rotating part (300) further includes: a driving cylinder (330), wherein the driving cylinder (330) is arranged on one side of the rotating arm (320); The driving end of the driving cylinder (330) is connected to the rotating arm (320) via a transmission assembly (331), so that the rotating arm (320) can be driven to rotate by the driving cylinder (330).

9. The positioning mechanism for hemming process according to claim 7, characterized in that, One end of the rotating arm (320) is rotatably disposed at an end of the fixed arm (310) away from the shaping portion (100).

10. An automobile production line, characterized in that, include: The positioning mechanism for hemming process according to any one of claims 1 to 9.

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