Automobile net cloth and air bag frame taking and placing jig

Abstract

The utility model discloses a kind of automobile mesh cloth and air bag frame taking and placing tool, including overall support and the mesh cloth grabbing unit and air bag frame grabbing and detecting unit respectively assembled in the left and right sides of overall support, overall support is assembled in the mobile end of robot by quick-change disc;Mesh cloth grabbing unit includes multiple needle-punching air cylinder, multiple needle-punching air cylinder is used to pierce mesh cloth to realize the grabbing of mesh cloth;Air bag frame grabbing and detecting unit includes multiple finger air cylinder and a telescopic cutting sheet, multiple finger air cylinder is used to position and grab the edge of air bag frame, telescopic cutting sheet is used to carry out penetration verification to the weakened area of air bag frame grabbed.The utility model is integrated double grabbing detection unit by overall support, can be coherent to complete mesh cloth grabbing, air bag frame grabbing and weakening verification action, reduce workpiece transfer link and equipment investment, significantly shorten production rhythm.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, specifically to a fixture for taking out and placing automotive mesh and airbag frames. Background Technology

[0002] In the automotive interior manufacturing industry, the airbag frame is a key component of the airbag system. Its production process encompasses several stages, including dashboard frame weakening, welding or snapping the dashboard frame to the airbag frame, dashboard assembly, dashboard crossbeam assembly, and airbag assembly. During production, the airbag frame mesh needs to be embedded into the fixed mold side of the injection molding machine. After high-pressure injection and cooling curing, it is integrally formed with the frame. The formed airbag frame then undergoes weighing, laser weakening, and visual inspection to ensure that the airbag deploys in the predetermined direction and angle during a collision, preventing displacement or the generation of flying debris that could injure people.

[0003] However, existing technologies have obvious problems:

[0004] Manual component handling has significant limitations: The traditional method relies on manual handling of airbag frame removal and mesh placement, which cannot connect multiple processes such as injection molding and inspection, resulting in low production efficiency. It also poses safety risks due to manual contact with high-temperature molds and can easily cause the airbag frame or mesh to shift, affecting subsequent accuracy.

[0005] Insufficient stability of automated fixtures: In some scenarios, robots are used to assist in picking and placing, but existing fixtures do not have a dedicated structure for airbag frames and mesh fabrics. The mesh fabrics are prone to deformation, and the airbag frames are difficult to position accurately, which in turn affects the reliability of laser weakening and visual inspection, and cannot meet the requirements for offset-free grasping.

[0006] The laser weakening detection accuracy is poor: the current method relies solely on the vision system to detect the laser weakening effect. Since the weakened part of the airbag frame is mostly a single line, the vision system is easily affected by ambient light and the surface condition of the product, and cannot accurately determine whether the weakening line has been penetrated. This may allow unqualified products to enter the subsequent process and create safety hazards.

[0007] In summary, existing technologies have shortcomings in the automated handling, fixture stability, and testing accuracy of airbag frames and mesh fabric production, and there is an urgent need for specialized fixtures to solve these problems. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a fixture for taking out and placing automotive mesh and airbag frames.

[0009] This utility model discloses a car mesh and airbag frame picking and placing fixture, including an overall bracket and a mesh gripping unit and an airbag frame gripping and detection unit respectively mounted on the left and right sides of the overall bracket. The overall bracket is mounted on the moving end of the robot through a quick-change plate.

[0010] The mesh gripping unit includes multiple needle-punching cylinders, which are used to puncture the mesh to grip it.

[0011] The airbag frame grasping and detection unit includes multiple finger cylinders and a retractable cutting blade. The multiple finger cylinders are used to position and grasp the edge of the airbag frame, and the retractable cutting blade is used to perform penetration verification on the weakened area of ​​the grasped airbag frame.

[0012] As a further improvement of this utility model, the overall bracket includes an intermediate connecting bracket and a first mounting plate and a second mounting plate that are installed parallel to each other on the left and right sides of the intermediate connecting bracket, and the quick-change disc is assembled at the top of the intermediate connecting bracket.

[0013] The mesh gripping unit is mounted on the first mounting plate, and the outer side of the first mounting plate forms the mesh gripping side; the airbag frame gripping and detection unit is mounted on the second mounting plate, and the outer side of the second mounting plate forms the airbag frame gripping side.

[0014] As a further improvement of this utility model, the first mounting plate has four first through holes distributed in a matrix symmetrical arrangement. Each of the first through holes is equipped with a needle-piercing cylinder through a first adjusting bracket. The needle-piercing cylinder can extend in a direction away from the second mounting plate to pierce the mesh fabric.

[0015] The distance between the two needle cylinders located on the same horizontal line can be adjusted by the corresponding first adjusting bracket.

[0016] As a further improvement of this utility model, at least one set of finger cylinders are respectively mounted on the second mounting plate in the four directions of the airbag frame (up, down, left, right) via the second adjusting bracket. Each set of finger cylinders consists of two finger cylinders that are symmetrical about the central axis of the airbag frame.

[0017] Each set of finger cylinders can have its spacing adjusted by the corresponding second adjustment bracket.

[0018] As a further improvement of this utility model, the retractable cutting sheet includes a retractable cylinder and a cutting sheet;

[0019] The telescopic cylinder is fixedly mounted on the inner side of the second mounting plate, and the second mounting plate is provided with a second through hole corresponding to the extended end of the telescopic cylinder; the cutting sheet is placed on the outer side of the second mounting plate and is fixedly connected to the extended end of the telescopic cylinder; the telescopic cylinder drives the cutting sheet to extend in a direction away from the first mounting plate in order to perform penetration verification on the weakened area of ​​the grasped airbag frame.

[0020] As a further improvement of this utility model, the orientation of the cut sheet matches the weakening line area of ​​the airbag frame.

[0021] As a further improvement of this utility model, each of the needle-piercing cylinders and each of the finger cylinders is equipped with a positioning sensor.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention achieves integrated operation of mesh fabric and airbag frame handling and inspection, significantly improving production efficiency. By integrating a dual-grip inspection unit into the overall support frame and adapting it to a robot via a quick-change tray, the mesh fabric gripping, airbag frame gripping, and weakening verification actions can be completed sequentially, replacing the traditional multi-device sequential operation mode. This reduces workpiece transfer steps and equipment investment, significantly shortening the production cycle.

[0024] This invention improves the stability and accuracy of mesh gripping, preventing deformation and damage. Four needle-punching cylinders are symmetrically distributed in a matrix, ensuring uniform force on the mesh. The spacing between the needle-punching cylinders on the same horizontal line can be adjusted via the first adjusting bracket to accommodate meshes of different sizes, solving the problems of deformation and limited adaptability inherent in traditional fixtures.

[0025] This invention ensures the positioning and gripping accuracy of the airbag frame, providing a reliable foundation for testing. A second mounting plate is fitted with symmetrical finger cylinders along the up, down, left, and right directions of the airbag frame, providing multi-directional clamping to ensure posture stability. Each set of finger cylinders can be adjusted via a second adjusting bracket to accommodate airbag frames of different specifications, improving versatility and reducing the cost of specialized fixtures.

[0026] This invention enables precise detection of the weakened area of ​​the airbag frame, improving quality and reliability. The cutting sheet driven by the telescopic cylinder is matched with the weakened line, and the separate internal and external assembly method avoids interference. Combined with the stable drive of the cylinder, it accurately completes the penetration verification, significantly reducing the false judgment rate compared with traditional detection methods.

[0027] This invention enhances operational reliability and equipment compatibility. Both the needle-piercing and finger cylinders are equipped with positioning sensors to monitor the positioning status in real time, preventing workpiece detachment. The left and right split mounting plates of the overall support prevent operational interference, and the quick-change tray structure allows for rapid adaptation to the robot, improving debugging efficiency. Attached Figure Description

[0028] Figure 1 This is a structural axis view of an embodiment of the automotive mesh and airbag frame loading and unloading fixture disclosed in this utility model;

[0029] Figure 2 This is a structural axis view from another angle of the automotive mesh and airbag frame loading and unloading fixture disclosed in one embodiment of the present utility model;

[0030] Figure 3 This is a front view of the structure of the automotive mesh and airbag frame loading and unloading fixture disclosed in one embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the first adjusting bracket structure of the automotive mesh and airbag frame placement and removal fixture disclosed in one embodiment of the present utility model.

[0032] Figure 5 This is a schematic diagram of the structure of the second adjusting bracket of the automotive mesh and airbag frame placement fixture disclosed in one embodiment of the present utility model.

[0033] Figure 6 This is a schematic diagram of the retractable cutting sheet of the automotive mesh and airbag frame loading and unloading fixture disclosed in one embodiment of the present invention.

[0034] In the picture:

[0035] 1. Intermediate connecting bracket; 2. Quick-change disc; 3. First mounting plate; 3-1. First through hole; 4. Second mounting plate; 4-1. Second through hole; 5. Needle-piercing cylinder; 6. First adjusting bracket; 6-1. Long slot hole; 6-2. Connecting piece; 6-3. Bolt; 7. Finger cylinder; 8. Second adjusting bracket; 9. Cutting sheet; 10. Telescopic cylinder; 11. L-shaped connecting plate; 12. First clamping frame; 13. Second clamping frame. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0039] The present invention will now be described in further detail with reference to the accompanying drawings:

[0040] like Figure 1-3 As shown, a car mesh and airbag frame handling fixture according to this utility model includes an overall support, a mesh gripping unit, and an airbag frame gripping and detection unit. The mesh gripping unit and the airbag frame gripping and detection unit are respectively mounted on the left and right sides of the overall support, which is mounted to the robot's moving end via a quick-change disc 2. The mesh gripping unit includes multiple needle-piercing cylinders 5, which are used to pierce the mesh to grip it. The airbag frame gripping and detection unit includes multiple finger cylinders 7 and a retractable cutting blade. The multiple finger cylinders 7 are used to position and grip the edge of the airbag frame, and the retractable cutting blade is used to perform penetration verification on the weakened area of ​​the gripped airbag frame.

[0041] In this embodiment, the integrated operation of mesh fabric and airbag frame handling and inspection is realized, significantly improving production efficiency. By integrating a dual-grip inspection unit into the overall support frame and adapting it to the robot via a quick-change tray 2, the mesh fabric gripping, airbag frame gripping, and weakening verification actions can be completed sequentially, replacing the traditional multi-device sequential operation mode. This reduces workpiece transfer steps and equipment investment, significantly shortening the production cycle time; at the same time, it improves the stability and accuracy of mesh fabric gripping, preventing deformation and damage.

[0042] Specifically:

[0043] like Figure 1-3As shown, in the above embodiment, preferably, the overall support includes a central connecting bracket 1 and a first mounting plate 3 and a second mounting plate 4 installed parallel to each other on the left and right sides of the central connecting bracket 1. A quick-change disc 2 is mounted on the top of the central connecting bracket 1. A mesh gripping unit is mounted on the first mounting plate 3, with the outer side of the first mounting plate 3 forming a mesh gripping side. An airbag frame gripping and detection unit is mounted on the second mounting plate 4, with the outer side of the second mounting plate 4 forming an airbag frame gripping side. In this embodiment, both the first mounting plate 3 and the second mounting plate 4 are rectangular structures. The central connecting bracket 1 includes a vertical section and a horizontal section. The quick-change disc 2 is connected to the upper part of the vertical section, and the lower part of the vertical section is connected to the midpoint of the horizontal section. The left and right ends of the horizontal section are respectively connected to the first mounting plate 3 and the second mounting plate 4. The extending directions of the first mounting plate 3 and the second mounting plate 4 are consistent with the extending direction of the vertical section.

[0044] In the above embodiment, preferably, four first through holes 3-1 are symmetrically distributed in a matrix on the first mounting plate 3. Each first through hole 3-1 is equipped with a needle-piercing cylinder 5 through a first adjusting bracket 6. The needle-piercing cylinder 5 can extend in a direction away from the second mounting plate 4 to pierce the mesh. The distance between two needle-piercing cylinders 5 located on the same horizontal line can be adjusted by the corresponding first adjusting bracket 6.

[0045] like Figure 4 As shown, in the above embodiment, preferably, the first adjusting bracket 6 is provided with an elongated slot 6-1, the extension direction of which is parallel to the horizontal direction (short side direction) of the first mounting plate 3. In this embodiment, each first adjusting bracket 6 has two elongated slots 6-1, which are arranged vertically parallel on the first adjusting bracket 6. The first mounting plate 3 is provided with first bolt holes corresponding to the two elongated slots 6-1. It also includes a connecting piece 6-2 and bolts 6-3. The connecting piece 6-2 is provided with second bolt holes corresponding to the two elongated slots 6-1, and the two bolts 6-3 pass through the second bolt holes and the first bolt holes respectively to fix the first adjusting bracket 6 on the first mounting plate 3. By using the two elongated slots 6-1 in conjunction with the connecting piece 6-2 and the first and second bolt holes, the horizontal adjustment of the needle cylinder 5 can be achieved.

[0046] In this embodiment, the four needle-punching cylinders 5 are symmetrically distributed in a matrix, so that the mesh is subjected to uniform force; the spacing of the needle-punching cylinders 5 on the same horizontal line can be adjusted by the first adjusting bracket 6 to adapt to different sizes of mesh, which solves the problems of deformation and limited adaptability of traditional jigs.

[0047] like Figure 1-3As shown, in the above embodiment, preferably, at least one set of finger cylinders 7 is mounted on the second mounting plate 4 in the four directions corresponding to the airbag frame (up, down, left, and right) via a second adjusting bracket 8. Each set of finger cylinders 7 consists of two finger cylinders 7 symmetrically positioned relative to the central axis of the airbag frame. The spacing between the two finger cylinders 7 in each set can be adjusted via the corresponding second adjusting bracket 8. In this embodiment, a set of finger cylinders 7 is symmetrically arranged on the upper and lower sides of the airbag frame on the second mounting plate 4, and two sets of finger cylinders 7 are symmetrically arranged in pairs on the left and right sides of the airbag frame.

[0048] like Figure 5 As shown, in the above embodiments, preferably, the structure and adjustment principle of the second adjustment bracket 8 are the same as those of the first adjustment bracket 6, and will not be described in detail here.

[0049] In the above embodiment, preferably, it further includes a first clamping frame 12 and a second clamping frame 13. Both the first clamping frame 12 and the second clamping frame 13 have C-shaped clamping openings at their ends, and the open ends of these C-shaped clamping openings are locked by locking bolts. In actual connection, the second adjusting bracket 8 is parallel to the horizontal direction (short side direction) of the second mounting plate 4, the axial direction of the first clamping frame 12 is perpendicular to the second adjusting bracket 8, and it is fixed to the second adjusting bracket 8. The extension direction of the first clamping frame 12 is towards a direction away from the first mounting plate 3. The C-shaped clamping opening of the first clamping frame 12 clamps the second clamping frame 13, which is parallel to the plane of the second adjusting bracket 8 or the second mounting plate 4. The C-shaped clamping opening of the second clamping frame 13 clamps the finger cylinder 7. The design of the C-shaped clamping openings of the first clamping frame 12 and the second clamping frame 13 allows for the angular rotation adjustment of the finger cylinder 7.

[0050] In this embodiment, the positioning and gripping accuracy of the airbag frame is ensured, providing a reliable foundation for testing. The second mounting plate 4 is equipped with symmetrical finger cylinders 7 along the up, down, left, and right directions of the airbag frame, and the multi-directional clamping ensures posture stability; the distance of each set of finger cylinders 7 can be adjusted through the second adjusting bracket 8 to adapt to airbag frames of different specifications, improving versatility and reducing the cost of special fixtures.

[0051] In the above embodiments, preferably, each needle cylinder 5 is equipped with a positioning sensor (not shown in the figure) to identify the extension and retraction of the needle; each finger cylinder 7 is equipped with a positioning sensor (not shown in the figure) to identify the extension and retraction of the finger cylinder 7.

[0052] like Figure 6As shown, the telescopic cutting blade includes a telescopic cylinder 10 and a cutting blade 9. The telescopic cylinder 10 is fixedly mounted to the inner side of the second mounting plate 4 via an L-shaped connecting plate 11. The second mounting plate 4 has a second through hole 4-1 corresponding to the extended end of the telescopic cylinder 10. The cutting blade 9 is placed on the outer side of the second mounting plate 4 and fixedly connected to the extended end of the telescopic cylinder 10. The telescopic cylinder 10 drives the cutting blade 9 to extend in a direction away from the first mounting plate 3 to perform penetration verification on the weakened area of ​​the grasped airbag frame. In this embodiment, the orientation of the cutting blade 9 matches the weakened line area of ​​the airbag frame.

[0053] In this embodiment, precise detection of the weakened area of ​​the airbag frame is simultaneously achieved, improving quality reliability. The cutting sheet 9 driven by the telescopic cylinder 10 is matched with the weakened line, and the separate internal and external assembly method avoids interference. With the stable drive of the cylinder, the penetration verification is accurately completed, significantly reducing the false judgment rate compared with traditional detection methods; secondly, it enhances operational reliability and equipment compatibility.

[0054] In this embodiment, both the needle-piercing and finger cylinders are equipped with positioning sensors to monitor the positioning status of the actions in real time and prevent the workpiece from falling off; the left and right split mounting plate design of the overall bracket prevents operation interference, and the quick-change plate 2 structure enables rapid adaptation with the robot and improves debugging efficiency.

[0055] How to use this embodiment:

[0056] Mesh gripping and placement: The ABB robot moves to the mesh hopper position, and the four needle-piercing cylinders 5 extend to pierce the mesh. After the needles are in place, the robot moves above the injection molding machine to wait for the mold to open. After the injection molding machine opens the mold, the robot moves to the mesh placement position on the fixed mold side, and the needle-piercing cylinders 5 retract. When the retraction signal is 1, the mesh placement is complete.

[0057] Airbag frame grasping and laser weakening: After the mesh is placed, the robot moves to the airbag frame grasping position, the solenoid valve is energized, and the six finger cylinders 7 move simultaneously to position the edge of the airbag frame from four directions: up, down, left, and right. When the position sensors of the six finger cylinders 7 all show 1, the robot retreats and removes the airbag frame from the moving mold. Then the robot sends the airbag frame to the laser weakening position to complete the weakening process.

[0058] Multiple testing and finished product processing:

[0059] ① Visual inspection: After weakening, the robot moves the airbag frame to the visual inspection position, and the vision system makes an initial judgment on the weakening situation;

[0060] ②Mechanical verification: After visual inspection, the telescopic cylinder 10 drives the cutting sheet 9 to move downward. If the cutting sheet 9 can penetrate the middle part of the airbag frame and the telescopic cylinder 10 moves forward to the correct position, the magnetic switch lights up, indicating that the product is qualified, and the telescopic cylinder 10 retracts. If the cutting sheet 9 cannot penetrate and the telescopic cylinder 10 does not reach the correct position, the equipment alarms, and the robot moves the NG product to the scrap area.

[0061] ③ Weighing and Inspection: Qualified products are sent to the weighing and inspection platform by the robot. The six-finger cylinder 7 releases the product. After the weighing and inspection is OK, the robot takes out the product and places it on the conveyor belt, completing the whole process.

[0062] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixture for handling automotive mesh and airbag frames, characterized in that, It includes an overall support frame and a mesh gripping unit and an airbag frame gripping and detection unit respectively mounted on the left and right sides of the overall support frame. The overall support frame is mounted on the moving end of the robot via a quick-change disc. The mesh gripping unit includes multiple needle-punching cylinders, which are used to puncture the mesh to grip it. The airbag frame grasping and detection unit includes multiple finger cylinders and a retractable cutting blade. The multiple finger cylinders are used to position and grasp the edge of the airbag frame, and the retractable cutting blade is used to perform penetration verification on the weakened area of ​​the grasped airbag frame.

2. The automobile webbing and airbag frame picking and placing jig according to claim 1, wherein The overall support includes an intermediate connecting bracket and a first mounting plate and a second mounting plate that are installed parallel to each other on the left and right sides of the intermediate connecting bracket. The quick-change disc is mounted on the top of the intermediate connecting bracket. The mesh gripping unit is mounted on the first mounting plate, and the outer side of the first mounting plate forms the mesh gripping side; the airbag frame gripping and detection unit is mounted on the second mounting plate, and the outer side of the second mounting plate forms the airbag frame gripping side.

3. The automobile webbing and airbag frame picking and placing jig according to claim 2, wherein The first mounting plate has four first through holes symmetrically distributed in a matrix. Each first through hole is equipped with a needle-piercing cylinder through a first adjusting bracket. The needle-piercing cylinder can extend in a direction away from the second mounting plate to pierce the mesh fabric. The distance between the two needle cylinders located on the same horizontal line can be adjusted by the corresponding first adjusting bracket.

4. The automobile webbing and airbag frame picking and placing jig according to claim 2, wherein The second mounting plate is equipped with at least one set of finger cylinders in the four directions of the airbag frame (up, down, left, right) via the second adjusting bracket. Each set of finger cylinders consists of two finger cylinders that are symmetrical about the central axis of the airbag frame. Each set of finger cylinders can have its spacing adjusted by the corresponding second adjustment bracket.

5. The automobile webbing and airbag frame picking and placing jig according to claim 2, wherein The retractable cutting sheet includes a retractable cylinder and a cutting sheet. The telescopic cylinder is fixedly mounted on the inner side of the second mounting plate, and the second mounting plate is provided with a second through hole corresponding to the extended end of the telescopic cylinder; the cutting sheet is placed on the outer side of the second mounting plate and is fixedly connected to the extended end of the telescopic cylinder; the telescopic cylinder drives the cutting sheet to extend in a direction away from the first mounting plate in order to perform penetration verification on the weakened area of ​​the grasped airbag frame.

6. The automotive webbing and airbag frame picking and placing jig according to claim 5, wherein The orientation of the cut sheet matches the weakening line region of the airbag frame.

7. The automotive webbing and airbag frame picking jig according to claim 1, wherein Each of the needle-piercing cylinders and each of the finger cylinders is equipped with a positioning sensor.

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