An automatic assembly system for trapezoidal frames

Abstract

The utility model belongs to the technical field of automobile parts assembly, disclose a trapezoidal frame automatic assembly system, including frame, and fixedly connected trapezoidal frame feeding mechanism, loading base, buffer station, bolt feeding mechanism, mechanical arm and fixing base on the frame, trapezoidal frame feeding mechanism is used for conveying trapezoidal frame to loading station, loading base is used for supporting trapezoidal frame, fixing base is used for fixing cylinder body, buffer station has the first locating plate and second locating plate of placing trapezoidal frame, bolt feeding mechanism can place bolt to the bolt hole of trapezoidal frame on buffer station, and mechanical arm can clamp and move trapezoidal frame. While trapezoidal frame feeding mechanism carries out trapezoidal frame loading to the first locating plate, bolt feeding mechanism can carry out bolt loading to the second locating plate, realize the parallel operation of bolt loading and trapezoidal frame loading, improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts assembly technology, and in particular to an automatic assembly system for a trapezoidal frame. Background Technology

[0002] The trapezoidal frame of an automobile engine is typically assembled manually or semi-automatically. Due to its weight, prolonged operation of the trapezoidal frame places a significant burden on workers; furthermore, the number of mounting bolts often exceeds 20, resulting in low production efficiency when assembled manually. Therefore, considering factors such as reducing labor load, improving production line efficiency, and lowering labor costs, it is necessary to automate the installation process of the trapezoidal frame.

[0003] In related technologies, there are a few cases of trapezoidal frame transportation and automatic feeding, but these are all localized applications and have not yet formed a complete fully automated solution. For example, an automatic feeding and positioning fixture for a trapezoidal frame of an automobile engine uses a dedicated automatic feeding and positioning fixture to limit the trapezoidal frame of the engine and achieve automatic feeding. Although it can achieve automatic positioning of the trapezoidal frame, the mechanical structure is relatively complex. Once a mechanical failure occurs, it will affect the automatic feeding of parts, resulting in low assembly efficiency. Another example is a automobile engine trapezoidal frame transportation device, which is equipped with complex mechanical structures such as hydraulic lifting rods, resulting in high equipment maintenance costs and low assembly efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an automatic assembly system for trapezoidal frames. This automatic assembly system for trapezoidal frames has a simple structure and high assembly efficiency for trapezoidal frames.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An automatic assembly system for trapezoidal frames is provided, comprising a frame, a trapezoidal frame feeding mechanism, a loading base, a buffer platform, a bolt feeding mechanism, a robotic arm, and a fixed base. The loading base, buffer platform, bolt feeding mechanism, robotic arm, and fixed base are all fixedly connected to the frame. The trapezoidal frame feeding mechanism is used to transport the trapezoidal frame to the loading station. The loading base is used to support the trapezoidal frame. The fixed base is used to fix the cylinder body. The buffer platform has a first positioning plate and a second positioning plate for placing the trapezoidal frame. The robotic arm and the bolt feeding mechanism are disposed on both sides of the buffer platform. The bolt feeding mechanism can place bolts into the bolt holes of the trapezoidal frame on the buffer platform. The robotic arm can move the trapezoidal frame on the loading base to the buffer platform; and / or, the robotic arm can move the trapezoidal frame on the buffer platform and place it on the cylinder body on the fixed base.

[0007] Preferably, the buffer platform further includes a rotating seat and an upper plate. The first positioning plate and the second positioning plate are both disposed on the upper plate. The first positioning plate and the second positioning plate are both used to place the trapezoidal frame. The rotating seat and the upper plate are rotatably connected so that the positions of the first positioning plate and the second positioning plate can be interchanged.

[0008] Preferably, the rotation angle of the rotating seat is 180 degrees.

[0009] Preferably, the trapezoidal frame feeding mechanism includes an automated guided vehicle and a transport fixture. When the trapezoidal frame feeding mechanism transports the trapezoidal frame, the transport fixture is placed on the automated guided vehicle and is used to place the trapezoidal frame.

[0010] Preferably, the loading base has a transport channel below it, allowing the automated guided vehicle to enter or exit the transport channel.

[0011] Preferably, the robotic arm includes a robotic hand, a mounting plate, a gripping mechanism, and a tightening mechanism. Both the gripping mechanism and the tightening mechanism are connected to the mounting plate, and the mounting plate is rotatably connected to the robotic hand.

[0012] Preferably, the clamping mechanism is used to move the trapezoidal frame on the loading base to one of the first positioning plate and the second positioning plate; and / or, the clamping mechanism is used to move the trapezoidal frame on the other of the first positioning plate and the second positioning plate and place it on the cylinder body on the fixed seat.

[0013] Preferably, the tightening mechanism can tighten the bolts to lock the relative positions of the trapezoidal frame and the cylinder block.

[0014] Preferably, the feeding base, buffer platform, and fixed seat are arranged sequentially around the robotic arm, and the feeding base, buffer platform, and fixed seat are distributed in a U-shape.

[0015] Preferably, the trapezoidal frame automatic assembly system also includes a conveying mechanism, with a fixed seat disposed on the conveying mechanism, and the conveying mechanism can drive the fixed seat to move along the length direction of the conveying mechanism.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model provides an automatic assembly system for trapezoidal frames. The buffer platform has a first positioning plate and a second positioning plate for placing trapezoidal frames. A robotic arm and a bolt feeding mechanism are arranged on both sides of the buffer platform. The bolt feeding mechanism can place bolts into the bolt holes of the trapezoidal frames on the buffer platform. The robotic arm can move the trapezoidal frames on the loading base to the buffer platform. The robotic arm can also move the trapezoidal frames on the buffer platform and place them on the cylinder body on the fixed seat. Through the arrangement of the two positioning plates on the buffer platform, the trapezoidal frame feeding mechanism can feed the trapezoidal frames to the first positioning plate while the bolt feeding mechanism feeds the bolts to the second positioning plate, realizing the parallel operation of bolt feeding and trapezoidal frame feeding, thus improving assembly efficiency. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the trapezoidal frame automatic assembly system provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the buffer platform provided by this utility model;

[0020] Figure 3 This is a structural schematic diagram of the feeding mechanism and the loading base provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the robotic arm provided by this utility model.

[0022] In the diagram: 1. Frame;

[0023] 2. Trapezoidal frame feeding mechanism; 21. Automated guided vehicle; 22. Transport tooling;

[0024] 3. Feeding base; 31. Transport channel;

[0025] 4. Buffer platform; 41. Rotating seat; 42. Upper plate; 43. First positioning plate; 44. Second positioning plate;

[0026] 5. Bolt feeding mechanism;

[0027] 6. Robotic arm; 61. Robotic hand; 62. Mounting plate; 63. Clamping mechanism; 64. Tightening mechanism;

[0028] 7. Fixed base; 8. Conveying mechanism; 9. Trapezoidal frame. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Please refer to Figures 1 to 4This embodiment provides an automatic assembly system for trapezoidal frames, including a frame 1, a trapezoidal frame feeding mechanism 2, a loading base 3, a buffer platform 4, a bolt feeding mechanism 5, a robotic arm 6, and a fixed base 7. The loading base 3, buffer platform 4, bolt feeding mechanism 5, robotic arm 6, and fixed base 7 are all fixedly connected to the frame 1. The trapezoidal frame feeding mechanism 2 is used to transport the trapezoidal frame 9 to the loading station. The loading base 3 is used to support the trapezoidal frame 9. The fixed base 7 is used to fix the cylinder body. The buffer platform 4 has a first positioning plate 43 and a second positioning plate 44 for placing the trapezoidal frame 9. The robotic arm 6 and the bolt feeding mechanism 5 are arranged on both sides of the buffer platform 4. The bolt feeding mechanism 5 can place bolts into the bolt holes of the trapezoidal frame 9 on the buffer platform 4. The robotic arm 6 can move the trapezoidal frame 9 on the loading base 3 to the buffer platform 4. The robotic arm 6 can move the trapezoidal frame 9 on the buffer platform 4 and place it on the cylinder body on the fixed base 7. By setting a first positioning plate 43 and a second positioning plate 44 on the buffer platform 4, the trapezoidal frame feeding mechanism 2 can feed the trapezoidal frame 9 to the first positioning plate 43 while the bolt feeding mechanism 5 can feed the bolts to the second positioning plate 44, realizing the parallel operation of bolt feeding and trapezoidal frame 9 feeding, thus improving assembly efficiency. At the same time, the robotic arm 6 can move the trapezoidal frame 9 on the feeding base 3 to the buffer platform 4, and can also move the trapezoidal frame 9 on the buffer platform 4 and place it on the cylinder body on the fixed seat 7. One mechanism realizes multiple functions, making the trapezoidal frame automatic assembly system simple in structure and easy to maintain.

[0034] Specifically, the bolt feeding mechanism 5 can be a rotary bolt feeder, a vibratory bolt feeder, a stepped bolt feeder, etc. This embodiment does not impose specific limitations on the bolt feeding mechanism 5, and those skilled in the art can select it as needed.

[0035] Alternatively, please refer to Figure 2The buffer platform 4 also includes a rotating base 41 and an upper plate 42. A first positioning plate 43 and a second positioning plate 44 are both mounted on the upper plate 42. Both the first positioning plate 43 and the second positioning plate 44 are used to place the trapezoidal frame 9. The rotating base 41 and the upper plate 42 are rotatably connected, allowing the positions of the first positioning plate 43 and the second positioning plate 44 to be interchanged. Specifically, the rotating base 41 includes a base and a rotating shaft. One end of the rotating shaft is rotatably connected to the base, and the other end is fixedly connected to the upper plate 42. With this configuration, when the trapezoidal frame 9 on the feeding base 3 moves to the position closer to the feeding base 3 between the first positioning plate 43 and the second positioning plate 44, the rotating base 41 drives the upper plate 42 to rotate, allowing the position closer to the feeding base 3 to be rotated to the position closer to the bolt feeding mechanism 5. This facilitates the bolt feeding mechanism 5 in feeding bolts. Simultaneously, the robotic arm 6 can move the trapezoidal frame 9 on the feeding base 3 to the other position between the first positioning plate 43 and the second positioning plate 44. The simultaneous feeding of bolts and trapezoidal frame 9 improves the assembly efficiency of the automatic assembly system for trapezoidal frames.

[0036] Optionally, the rotation angle of the rotating seat 41 is 180 degrees. This arrangement facilitates the interchange of the positions of the first positioning plate 43 and the second positioning plate 44, allowing for alternating loading of bolts and trapezoidal frame 9.

[0037] Alternatively, please refer to Figure 3 The trapezoidal frame feeding mechanism 2 includes an automated guided vehicle 21 and a transport fixture 22. When the trapezoidal frame feeding mechanism 2 transports the trapezoidal frame 9, the transport fixture 22 is placed on the automated guided vehicle 21. The transport fixture 22 is used to hold the trapezoidal frame 9. Specifically, the trapezoidal frame 9 is placed on the transport fixture 22, which is fixed in place by a limiting structure. The transport fixture 22, loaded with the trapezoidal frame 9, is placed on the automated guided vehicle 21. The automated guided vehicle 21 travels along a preset path, transporting the trapezoidal frame 9 to the loading base 3. Upon reaching the loading base 3, the automated guided vehicle 21 stops, and the transport fixture 22 with the trapezoidal frame 9 detaches from the automated guided vehicle 21 and is placed on the loading base 3. Specifically, the limiting structure can be a clamp or a limiting groove. This setup, with the automated guided vehicle 21, reduces manual operation and improves work efficiency. At the same time, the automated guided vehicle 21 can adjust its travel path and tasks according to production needs, adapting to different production layouts, thereby effectively avoiding damage to materials and safety accidents during transportation, and improving the safety of the trapezoidal frame automated assembly system.

[0038] Alternatively, please refer to Figure 3The loading base 3 has a transport channel 31 below it, and the automated guided vehicle 21 can drive into or out of the transport channel 31. With this configuration, the automated guided vehicle 21 can travel through the transport channel 31 below the loading base 3 during the feeding process, which reduces the footprint of the trapezoidal frame automated assembly system and facilitates the layout of the trapezoidal frame automated assembly system.

[0039] Alternatively, please refer to Figure 4 The robotic arm 6 includes a robotic hand 61, a mounting plate 62, a gripping mechanism 63, and a tightening mechanism 64. Both the gripping mechanism 63 and the tightening mechanism 64 are connected to the mounting plate 62, which is rotatably connected to the robotic hand 61. This configuration increases the flexibility of the robotic arm 6, allowing it to adapt to different working postures and operational needs. Furthermore, the robotic arm 6 integrates gripping and tightening functions, enabling a single robotic arm 6 to perform multiple tasks and simplifying the structure of the trapezoidal frame automated assembly system.

[0040] Optionally, the clamping mechanism 63 is used to move the trapezoidal frame 9 on the loading base 3 to one of the first positioning plate 43 and the second positioning plate 44; the clamping mechanism 63 is also used to move the trapezoidal frame 9 on the other of the first positioning plate 43 and the second positioning plate 44 and place it on the cylinder body on the fixed seat 7. Specifically, the clamping mechanism 63 includes a clamping drive member and two corresponding clamping plates. The clamping drive member can drive the two clamping plates to move away from or towards each other to clamp or release the trapezoidal frame 9. The clamping drive member can be a cylinder or a drive motor.

[0041] Optionally, the tightening mechanism 64 can tighten the bolts to lock the relative position of the trapezoidal frame 9 and the cylinder body. Specifically, the tightening mechanism 64 includes a tightening drive, a transmission assembly, and multiple tightening shafts. The multiple tightening shafts are connected to the tightening drive via the transmission assembly. Each end of the multiple tightening shafts away from the transmission assembly is provided with a tightening sleeve, and the multiple tightening sleeves are provided one-to-one with the bolt holes on the trapezoidal frame 9.

[0042] Alternatively, please refer to Figure 1 The loading base 3, buffer platform 4, and fixed seat 7 are arranged sequentially around the robotic arm 6, forming a U-shape. This arrangement concentrates the loading base 3, buffer platform 4, fixed seat 7, and robotic arm 6 into a compact space, saving floor space. Simultaneously, the robotic arm 6 can quickly switch between the loading base 3, buffer platform 4, and fixed seat 7 within the U-shaped layout, reducing idle time and repetitive actions, and improving the assembly efficiency of the trapezoidal frame automated assembly system.

[0043] Optionally, the automatic assembly system for the trapezoidal frame also includes a conveying mechanism 8, with a fixed seat 7 mounted on the conveying mechanism 8. The conveying mechanism 8 can drive the fixed seat 7 to move along the length of the conveying mechanism 8. Specifically, the conveying mechanism 8 is a motorized roller conveyor. In other embodiments, the conveying mechanism 8 can also be a synchronous belt. Understandably, the conveying mechanism 8 is used to transport the cylinder body assembled on the trapezoidal frame 9 to the next workstation. Those skilled in the art can adaptively select the conveying mechanism 8 according to actual needs, and this embodiment will not elaborate further.

[0044] Please refer to Figures 1 to 4 The workflow of the trapezoidal frame automatic assembly system is as follows:

[0045] S1: The trapezoidal frame 9 is loaded into the transport fixture 22. The automatic guide trolley 21 carries the transport fixture 22 and enters the transport channel 31 below the loading base 3. After the automatic guide trolley 21 is disengaged, the transport fixture 22 is placed on the loading base 3, and the automatic guide trolley 21 leaves the workstation.

[0046] S2: The gripping mechanism 63 of the robotic arm 6 grips the trapezoidal frame 9 from the transport fixture 22 and then places it on the first positioning plate 43 of the buffer platform 4. The gripping mechanism 63 of the robotic arm 6 releases the trapezoidal frame 9.

[0047] S3: Rotating seat 41 drives upper plate 42 to rotate, so that first positioning plate 43 approaches bolt feeding mechanism 5, and bolt feeding mechanism 5 places bolts one by one into the bolt holes of trapezoidal frame 9 of first positioning plate 43 of buffer platform 4.

[0048] S4: The gripping mechanism 63 of the robotic arm 6 grips the trapezoidal frame 9 from the first positioning plate 43 and then places the cylinder body on the fixed seat 7. The gripping mechanism 63 of the robotic arm 6 releases the trapezoidal frame 9.

[0049] S5: The robotic arm 6 switches to the tightening mechanism 64 to tighten the multiple bolts of the trapezoidal frame 9 one by one, so as to fix the relative position of the trapezoidal frame 9 and the cylinder body.

[0050] S6: After all bolts are tightened, start the conveying mechanism 8 to move the fixed seat 7 and cylinder body into the next station.

[0051] Furthermore, the workflow of the trapezoidal frame automated assembly system also includes:

[0052] S7: During the bolt feeding process, the clamping mechanism 63 of the robotic arm 6 clamps the trapezoidal frame 9 from the transport fixture 22 and then places it on the second positioning plate 44 of the buffer platform 4. The clamping mechanism 63 of the robotic arm 6 releases the trapezoidal frame 9.

[0053] S8: After the bolt feeding mechanism 5 completes the feeding, the rotating table drives the upper plate 42 to rotate 180 degrees.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic assembly system for a trapezoidal frame, comprising a frame (1), a trapezoidal frame feeding mechanism (2), a loading base (3), a buffer platform (4), a bolt feeding mechanism (5), a robotic arm (6), and a fixed seat (7), wherein the loading base (3), the buffer platform (4), the bolt feeding mechanism (5), the robotic arm (6), and the fixed seat (7) are all fixedly connected to the frame (1), the trapezoidal frame feeding mechanism (2) is used to transport the trapezoidal frame (9) to the loading station, the loading base (3) is used to support the trapezoidal frame (9), and the fixed seat (7) is used to fix the cylinder body, characterized in that, The buffer platform (4) has a first positioning plate (43) and a second positioning plate (44) for placing the trapezoidal frame (9). The robotic arm (6) and the bolt feeding mechanism (5) are located on both sides of the buffer platform (4). The bolt feeding mechanism (5) can place bolts into the bolt holes of the trapezoidal frame (9) on the buffer platform (4). The robotic arm (6) can move the trapezoidal frame (9) on the loading base (3) to the buffer platform (4). And / or, the robotic arm (6) can move the trapezoidal frame (9) on the buffer platform (4) and place it on the cylinder body on the fixed seat (7).

2. The automatic assembly system for trapezoidal frames according to claim 1, characterized in that, The buffer platform (4) further includes a rotating seat (41) and an upper plate (42). The first positioning plate (43) and the second positioning plate (44) are both disposed on the upper plate (42). The first positioning plate (43) and the second positioning plate (44) are both used to place the trapezoidal frame (9). The rotating seat (41) and the upper plate (42) are rotatably connected so that the positions of the first positioning plate (43) and the second positioning plate (44) can be interchanged.

3. The automatic assembly system for trapezoidal frames according to claim 2, characterized in that, The rotation angle of the rotating seat (41) is 180 degrees.

4. The automatic assembly system for trapezoidal frames according to claim 1, characterized in that, The trapezoidal frame feeding mechanism (2) includes an automatic guide vehicle (21) and a transport fixture (22). When the trapezoidal frame feeding mechanism (2) transports the trapezoidal frame (9), the transport fixture (22) is placed on the automatic guide vehicle (21). The transport fixture (22) is used to place the trapezoidal frame (9).

5. The automatic assembly system for trapezoidal frames according to claim 4, characterized in that, The loading base (3) has a transport channel (31) below it, and the automated guided vehicle (21) can drive into or out of the transport channel (31).

6. The automatic assembly system for trapezoidal frames according to claim 1, characterized in that, The robotic arm (6) includes a robotic hand (61), a mounting plate (62), a clamping mechanism (63), and a tightening mechanism (64). The clamping mechanism (63) and the tightening mechanism (64) are both connected to the mounting plate (62), and the mounting plate (62) is rotatably connected to the robotic hand (61).

7. The automatic assembly system for trapezoidal frames according to claim 6, characterized in that, The clamping mechanism (63) is used to move the trapezoidal frame (9) on the loading base (3) to one of the first positioning plate (43) and the second positioning plate (44); and / or, the clamping mechanism (63) is used to move the trapezoidal frame (9) on the other of the first positioning plate (43) and the second positioning plate (44) and place it on the cylinder body on the fixed seat (7).

8. The automatic assembly system for trapezoidal frames according to claim 7, characterized in that, The tightening mechanism (64) can tighten the bolts to lock the relative positions of the trapezoidal frame (9) and the cylinder body.

9. The automatic assembly system for trapezoidal frames according to claim 1, characterized in that, The loading base (3), the buffer platform (4), and the fixed base (7) are arranged sequentially around the robotic arm (6), and the loading base (3), the buffer platform (4), and the fixed base (7) are distributed in a U-shape.

10. The automatic assembly system for trapezoidal frames according to claim 1, characterized in that, The trapezoidal frame automatic assembly system also includes a conveying mechanism (8), and the fixed seat (7) is disposed on the conveying mechanism (8). The conveying mechanism (8) can drive the fixed seat (7) to move along the length direction of the conveying mechanism (8).

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