Pre-assembled corner pressing device with angular push folding mechanism

Abstract

This utility model relates to the field of automotive manufacturing technology, specifically to a pre-installed corner pressing device with an angle-pushing folding mechanism, comprising: a support assembly for fixing body parts; and several angle-pushing assemblies connected to the support assembly. Each angle-pushing assembly includes a first cylinder and a second cylinder with the same direction of movement. The first cylinder pushes the second cylinder to move relative to the body parts. The telescopic end of the second cylinder is connected to a folding component, which is a rotatable linkage mechanism. The working end of the folding component moves relative to the sharp corner area to fold and roll the sharp corner. This utility model sets up multiple angle-pushing assemblies corresponding to the sharp corners of the body parts. The first cylinder pushes the second cylinder to move towards the sharp corner, so that the movement trajectory of the working end of the folding component interferes with the corresponding sharp corner. The second cylinder pushes the folding component to deform, so that the working end of the folding component moves towards and fits against the sharp corner, thereby performing folding treatment on the sharp corner. This allows the angle-pushing assemblies to perform folding treatment on multiple sharp corners simultaneously, improving the efficiency of folding treatment on multiple sharp corners.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to a pre-installed corner pressing device with a corner pushing and folding mechanism. Background Technology

[0002] With the rapid development of the automotive industry and the widespread use of vehicles, automotive body manufacturing processes have become increasingly precise and mature. In the production of body panels, especially in the assembly of four doors and two hoods (engine hood and trunk lid), hemming has become the mainstream joining technology. This process uses a specialized hemming wheel to continuously roll and deform the flanged edge of the sheet metal outer panel, precisely wrapping it around the inner panel to form a beautiful, strong, and sealed edge. However, traditional hemming processes exhibit significant efficiency bottlenecks when dealing with complex-shaped body parts, especially in transition areas with sharp corners (such as window corners and door corners). Due to the special geometry of these areas, a single hemming wheel posture cannot achieve high-quality hemming.

[0003] To avoid quality defects such as wrinkles, deformation, or insufficient edge binding, the current mainstream solution is to use multi-posture hemming wheels. Under programmed control, the robot needs to frequently and precisely adjust the posture angle of the hemming tool, and even change hemming wheels with different shapes to adapt to different contours, thereby adapting to the different sharp corner contours of the car body parts. Although this series of adjustment actions ensures quality, it consumes a lot of production cycle time, becoming a key factor restricting the overall efficiency improvement of the production line. Utility Model Content

[0004] This utility model addresses the problem of low efficiency in existing hemming roller operations for multiple sharp corner transition areas of vehicle body parts by providing a pre-installed corner pressing device with a corner pushing and folding mechanism. The specific technical solution is as follows: A pre-installed corner pressing device with an angle push folding mechanism includes: a support assembly for fixing a vehicle body component; and a plurality of angle push assemblies connected to the support assembly. Each angle push assembly includes a first cylinder and a second cylinder with the same direction of movement. The first cylinder can push the second cylinder to move relative to the vehicle body component. The telescopic end of the second cylinder is connected to a folding member, which is a rotatable linkage mechanism. The working end of the folding member moves relative to the sharp corner area of ​​the vehicle body component to fold the rolled edge of the sharp corner.

[0005] Furthermore, the folding component includes an active connecting rod with one end connected to the telescopic end of the second cylinder, the other end of the active connecting rod being simultaneously connected to one end of the rotating connecting rod and the pushing connecting rod, the other end of the rotating connecting rod being connected to the telescopic end of the first cylinder, and the other end of the pushing connecting rod being connected to the corner pressing block. The corner pressing block moves along the second slide rail, which is relatively fixed to the telescopic end of the first cylinder. The active connecting rod, the rotating connecting rod, and the pushing connecting rod form a linkage mechanism. The end of the corner pressing block is the working end of the folding component, which pushes the end of the corner pressing block to move relative to the sharp corner.

[0006] Preferably, when the extension end of the second cylinder extends, the active connecting rod pushes the rotating connecting rod, which in turn pushes the connecting rod to swing, and the other end of the pushing connecting rod pushes the corner block to move along the second slide rail until the end of the corner block fits against the sharp corner, so as to fold the rolled edge of the sharp corner; when the extension end of the second cylinder retracts, the active connecting rod drives the rotating connecting rod, which in turn pushes the connecting rod to swing in the opposite direction, and the other end of the pushing connecting rod drives the corner block away from the sharp corner.

[0007] Preferably, the angle push assembly further includes a mounting base plate for supporting the cylinder bodies of the first cylinder and the second cylinder. The mounting base plate is vertically connected to a sliding side plate, and the sliding side plate is connected to a first slide rail that is vertically connected to the mounting base plate. The first cylinder pushes the folding piece and the second cylinder to move along the first slide rail.

[0008] Preferably, the corner push assembly further includes a rotating side plate connected to the first slide rail, one end of the rotating connecting rod rotates around the rotating side plate, the end of the rotating side plate away from the second cylinder is connected to a sliding top plate, the sliding top plate is connected to the second slide rail, and the sliding top plate forms a long groove along the length direction of the second slide rail so that the pushing connecting rod passes through the long groove to push the corner block to move.

[0009] Preferably, the support assembly includes a placement base for supporting the vehicle body component and a clamping member connected to the placement base, the clamping member and the placement base forming an openable clamping mechanism to secure the vehicle body component.

[0010] As can be seen from the above technical solution, this utility model has the following beneficial effects: This invention features multiple corner pushers corresponding to the sharp corners of vehicle body parts. A first cylinder pushes a second cylinder, which moves towards the sharp corner of the vehicle body part, causing the movement trajectory of the working end of the folding piece to interfere with the corresponding sharp corner. The second cylinder then deforms the folding piece, causing its working end to move towards and conform to the sharp corner, enabling the working end to perform hemming on the sharp corner. This allows the corner pushers to simultaneously hem multiple sharp corners, improving the efficiency of hemming multiple sharp corners. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of the structure at point A in the diagram; Figure 3 This is a structural diagram of the folded part; Figure 4 A schematic diagram of the structure for performing the rolling edge process on an embodiment of the corner push assembly; Figure 5 This is a schematic diagram of the corner push assembly embodiment without the rolling edge process.

[0012] In the diagram: 1. Support assembly; 11. Placement base; 12. Clamping component; 2. Angle push assembly; 21. Mounting base plate; 22. Sliding side plate; 23. First cylinder; 24. Second cylinder; 25. First slide rail; 26. Rotating side plate; 27. Sliding top plate; 28. Folding component; 281. Active connecting rod; 282. Rotating connecting rod; 283. Push connecting rod; 284. Corner pressing block; 285. Second slide rail; 29. ​​Long groove; 3. Body component; 4. Sharp corner. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] like Figure 1 and Figure 2 As shown, this embodiment is a pre-installed corner pressing device with an angle push folding mechanism, which includes: a support assembly 1, which is used to fix the body part 3; a plurality of angle push assemblies 2 connected to the support assembly 1, the angle push assembly 2 including a first cylinder 23 and a second cylinder 24 with the same direction of movement, the first cylinder 23 can push the second cylinder 24 to move relative to the body part 3, the telescopic end of the second cylinder 24 is connected to a folding member 28, the folding member 28 is a rotatable linkage mechanism, the working end of the folding member 28 moves relative to the sharp corner 4 area of ​​the body part 3 to fold the rolled edge of the sharp corner 4.

[0016] Specifically, body component 3 includes four doors and two covers (engine hood and trunk lid), with a sharp corner 4 area on its outer edge; secondly, support component 1 is fixed relative to body component 3, and corner push component 2 is fixed to support component 1 by bolts, so that body component 3 is fixed relative to corner push component 2, and the sharp corner 4 area is fixed relative to corner push component 2; secondly, the first cylinder 23 can lift the second cylinder 24 to move towards the corresponding sharp corner 4 area, the extension end of the second cylinder 24 moves in the direction of the sharp corner 4 area, and it is connected to the folding piece 28, which is a linkage mechanism. The working end of the linkage mechanism is in contact with the corresponding sharp corner 4, so that when the second cylinder 24 pushes the linkage 283 mechanism to rotate, The working end of the linkage mechanism is close to the sharp corner 4, and the rolling edge of the sharp corner 4 is folded and pressed by its own conforming curved surface, so that the rolling edge at the sharp corner 4 conforms to the sharp corner 4 of the body component 3; secondly, there are several sharp corner 4 areas in the body component, and each sharp corner 4 area is fixedly connected to the corner push component 2. The first cylinder 23 at each point can lift the folding piece 28 and the second cylinder 24, so that the moving path of the working end of the folding piece 28 interferes with the sharp corner 4 at the corresponding position, thereby causing the second cylinder 24 to push the folding piece 28 to push its working end to fold and press the rolling edge of the corresponding sharp corner 4 area, so that the rolling edge conforms to the sharp corner 4. The working ends of multiple folding pieces 28 are pressed and folded at the same time, improving the efficiency of the rolling process in the sharp corner 4 area.

[0017] like Figure 3 As shown, the folding piece 28 includes an active connecting rod 281 with one end connected to the telescopic end of the second cylinder 24. The other end of the active connecting rod 281 is simultaneously connected to one end of the rotating connecting rod 282 and the pushing connecting rod 283. The other end of the rotating connecting rod 282 is connected to the telescopic end of the first cylinder 23. The other end of the pushing connecting rod 283 is connected to the corner pressing block 284. The corner pressing block 284 moves along the second slide rail 285. The second slide rail 285 is relatively fixed to the telescopic end of the first cylinder 23. The active connecting rod 281, the rotating connecting rod 282 and the pushing connecting rod 283 form a linkage mechanism. The end of the corner pressing block 284 is the working end of the folding piece 28, so as to push the end of the corner pressing block 284 to move relative to the sharp corner 4.

[0018] Specifically, the top, bottom, left, and right sides of the folded edge piece 28 are... Figure 3The upper, lower, left, and right sides of the cylinder are connected; secondly, the bottom end of the active connecting rod 281 is rotatably connected to the telescopic end of the second cylinder 24, and the top end of the active connecting rod 281, the right end of the rotating connecting rod 282, and the left end of the pushing connecting rod 283 are rotatably connected. The left end of the rotating connecting rod 282 is rotatably connected, and its rotation fulcrum is fixed relative to the telescopic end of the first cylinder 23. The right end of the pushing connecting rod 283 is rotatably connected to the corner block 284. The corner block 284 is slidably connected to the second slide rail 285. The second slide rail 285 is relatively rotated. The pivot point of the moving link 282 and the telescopic end of the first cylinder 23 are fixed. The moving direction of the right end of the pushing link 283 is the moving direction of the corner block 284, and its moving direction is the length direction of the second slide rail 285. This allows the telescopic end of the second cylinder 24 to push the active link 281 to move up and down, thereby pushing the rotating link 282 to swing up and down, and pushing the pushing link 283 to move up, down, left and right, thereby pushing the end of the corner block 284 to move relative to the sharp corner 4 along the second slide rail 285.

[0019] Among them, the end of the corner block 284 near the sharp corner 4 is its own end. It forms a groove that fits the different sharp corners 4 of the body part 3, so that when the corner block 284 approaches the sharp corner 4 along the second slide rail 285, the end of the corner block 284 can fit the sharp corner 4 to perform the rolling edge process on the sharp corner 4.

[0020] like Figure 4 As shown, in this embodiment, the sharp corner 4 of the body component 3 is hemmed. The extension end of the first cylinder 23 drives the second cylinder 24 to move upward, thereby adjusting the height of the corner pressing block 284 relative to the body component 3, so that the movement trajectory of the corner pressing block 284 interferes with the sharp corner 4, thus improving the adaptability of this embodiment to different body components 3. Secondly, the extension end of the second cylinder 24 extends out of the bottom end of the active connecting rod 281, and the top end of the active connecting rod 281 simultaneously pushes the rotating connecting rod 282 to swing clockwise and pushes the connecting rod 283 to swing counterclockwise (the swing direction is...). Figure 4 (Direction), push the other end of the connecting rod 283 to push the corner block 284 to move along the second slide rail 285 until the end of the corner block 284 fits against the sharp corner 4 to fold the rolled edge of the sharp corner 4.

[0021] like Figure 5 As shown, the end of the corner block 284 completes the hemming treatment of the sharp corner 4. The telescopic end of the second cylinder 24 retracts, and the active connecting rod 281 drives the rotating connecting rod 282 to swing counterclockwise and pushes the connecting rod 283 to swing clockwise (the swing direction is...). Figure 5 (Direction), push the other end of the connecting rod 283 to move the corner block 284 away from the sharp corner 4, and the first cylinder 23 drives the second cylinder 24 to move downward and return to the initial position so as to perform hemming treatment on the sharp corner 4 of the next body part 3.

[0022] Furthermore, the angle push assembly 2 also includes a mounting base plate 21 for supporting the cylinder bodies of the first cylinder 23 and the second cylinder 24. The mounting base plate 21 is vertically connected to the sliding side plate 22, and the sliding side plate 22 is connected to the first slide rail 25 vertically connected to the mounting base plate 21. The first cylinder 23 pushes the folding piece 28 and the second cylinder 24 to move along the first slide rail 25.

[0023] Specifically, the sliding side plate 22 is fixedly connected to the placement base 11 via a bracket. The sliding side plate 22 is perpendicular to the second slide rail 285. The bottom end of the sliding side plate 22 is perpendicularly connected to the mounting base plate 21 via bolts. The cylinder bodies of the first cylinder 23 and the second cylinder 24 are both fixedly connected to the mounting base plate 21 via bolts. The extension and retraction directions of the two cylinders are perpendicular to the mounting base plate 21, and thus parallel to the sliding side plate 22. The angle of the sliding side plate 22 relative to the placement base 11, i.e. the angle with the vertical direction, is the angle between the extension and retraction directions of the first cylinder 23 and the second cylinder 24 and the vertical direction, and is also the complementary angle of the angle between the length direction of the second slide rail 285 and the vertical direction. This angle is related to the angle between the end of the corner block 284 and the corner rolled edge. The specific relationship is determined according to the shape of the sharp corner 4 and the shape of the corner rolled edge, so as to ensure that the end of the corner block 284 can fit the sharp corner 4, thereby improving the folding quality of the corner rolled edge.

[0024] Furthermore, the corner push assembly 2 also includes a rotating side plate 26 connected to the first slide rail 25. One end of the rotating connecting rod 282 rotates around the rotating side plate 26. The end of the rotating side plate 26 away from the second cylinder 24 is connected to a sliding top plate 27. The sliding top plate 27 is connected to the second slide rail 285. The sliding top plate 27 forms a long groove 29 along the length direction of the second slide rail 285 so that the pushing connecting rod 283 passes through the long groove 29 to push the corner block 284 to move.

[0025] Specifically, the left ends of two parallel rotating side plates 26 are slidably connected to parallel first slide rails 25, and the bottom of the rotating side plates 26 are fixedly connected to the telescopic ends of the first cylinder 23 and the second cylinder 24, so that the first cylinder 23 pushes the rotating side plates 26 to push the second cylinder 24 up and down; secondly, the top of the rotating side plates 26 is fixedly connected to a sliding top plate 27 by bolts, the sliding top plate 27 is perpendicular to the sliding side plates 22, and the top of the sliding top plate 27 is fixedly connected to parallel first slide rails 25 by bolts. The second slide rail 285 is perpendicular to the first slide rail 25, so that during the up and down movement of the second slide rail 285, the movement path of the corner block 284 only changes the vertical distance from the sharp corner 4, thus improving the relative position accuracy between the moving corner block 284 and the sharp corner 4. Secondly, a through groove 29 is formed on the left side of the second slide rail 285. When the push rod pushes the corner block 284 to move along the second slide rail 285, it moves along the long groove 29 at the same time, avoiding interference between the sliding top plate 27 and the movement trajectory of the push rod and the corner block 284.

[0026] Furthermore, the support assembly 1 includes a placement base 11 for supporting the body component 3 and a clamping member 12 connected to the placement base 11. The clamping member 12 and the placement base 11 form an openable clamping mechanism to fix the body component 3.

[0027] Specifically, the placement base 11 is welded from square tubing, and the clamping member 12 is welded from square tubing. One side of the two is rotatably connected to form a clamping mechanism. The clamping mechanism can fix the body part 3 to the placement base 11 through the clamping member 12, so that the corner push assembly 2 rolls the sharp corner 4 of the body part 3. The clamping mechanism can be driven by a motor to rotate the clamping member 12 relative to the placement base 11 to clamp the body part 3. Alternatively, the clamping mechanism can be driven by a large-size cylinder to move one end of the clamping member 12 up and down, and the other end of the clamping member 12 is rotatably connected to the placement base 11, so that the clamping member 12 rotates relative to the placement base 11 to clamp the body part 3.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0029] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A pre-assembled corner pressing device with a corner pushing and folding mechanism, characterized in that, include: Support assembly (1), the support assembly (1) being used to fix the body component (3); A plurality of angle push assemblies (2) connected to the support assembly (1) include a first cylinder (23) and a second cylinder (24) with the same direction of movement. The first cylinder (23) can push the second cylinder (24) to move relative to the body part (3). The telescopic end of the second cylinder (24) is connected to a folding piece (28). The folding piece (28) is a rotatable linkage mechanism. The working end of the folding piece (28) moves relative to the sharp corner (4) area of ​​the body part (3) to fold the rolled edge of the sharp corner (4).

2. The pre-installed angle pressing device according to claim 1, characterized in that: The folding piece (28) includes an active connecting rod (281) with one end connected to the telescopic end of the second cylinder (24). The other end of the active connecting rod (281) is simultaneously connected to one end of the rotating connecting rod (282) and the pushing connecting rod (283). The other end of the rotating connecting rod (282) is connected to the telescopic end of the first cylinder (23). The other end of the pushing connecting rod (283) is connected to the corner block (284). The corner block (284) moves along the second slide rail (285). The second slide rail (285) is fixed relative to the telescopic end of the first cylinder (23). The active connecting rod (281), the rotating connecting rod (282), and the pushing connecting rod (283) constitute the linkage mechanism. The end of the corner block (284) is the working end of the folding piece (28) to push the end of the corner block (284) to move relative to the sharp corner (4).

3. The pre-installed angle pressing device according to claim 2, characterized in that: When the telescopic end of the second cylinder (24) extends, the active connecting rod (281) pushes the rotating connecting rod (282) and the pushing connecting rod (283) to swing. The other end of the pushing connecting rod (283) pushes the corner block (284) to move along the second slide rail (285) until the end of the corner block (284) fits against the sharp corner (4) to fold the rolled edge of the sharp corner (4). When the telescopic end of the second cylinder (24) retracts, the active connecting rod (281) drives the rotating connecting rod (282) and the pushing connecting rod (283) to swing in the opposite direction, and the other end of the pushing connecting rod (283) drives the corner block (284) away from the sharp corner (4).

4. The pre-installed angle pressing device according to claim 2, characterized in that: The angle push assembly (2) further includes a mounting base plate (21) for supporting the cylinder bodies of the first cylinder (23) and the second cylinder (24). The mounting base plate (21) is vertically connected to a sliding side plate (22). The sliding side plate (22) is connected to a first slide rail (25) perpendicular to the mounting base plate (21). The first cylinder (23) pushes the folded edge piece (28) and the second cylinder (24) to move along the first slide rail (25).

5. The pre-installed angle pressing device according to claim 4, characterized in that: The corner push assembly (2) also includes a rotating side plate (26) connected to the first slide rail (25). One end of the rotating connecting rod (282) rotates around the rotating side plate (26). The end of the rotating side plate (26) away from the second cylinder (24) is connected to a sliding top plate (27). The sliding top plate (27) is connected to the second slide rail (285). The sliding top plate (27) forms a long groove (29) along the length direction of the second slide rail (285) so that the pushing connecting rod (283) passes through the long groove (29) to push the corner block (284) to move.

6. The pre-installed angle pressing device according to claim 1, characterized in that: The support assembly (1) includes a placement base (11) for supporting the body component (3) and a clamping member (12) connected to the placement base (11). The clamping member (12) and the placement base (11) form an openable clamping mechanism to fix the body component (3).

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