Pneumatic sheet-metal flanging device

Abstract

The utility model relates to the technical field of automobile production line frock clamp, disclose a kind of pneumatic plate part flanging device, including base, the base top is fixed with mounting bracket, and first hinged point, second hinged point and third hinged point are equipped on mounting bracket, and the first hinged point is hinged with the pressing flanging mechanism, and second hinged point and third hinged point are hinged with driving mechanism jointly;The pressing flanging mechanism includes the positioning pressing assembly being set on the top of mounting bracket, and positioning pressing assembly is hinged on mounting bracket by first hinged point, and its front end is provided with synchronous flanging assembly;The utility model adopts mechanical linkage structure, and single cylinder is used to drive mechanical link to complete the whole operation of plate part flanging work, simplifies the structure of flanging device, and improves the working efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology for automobile production lines, and in particular to a pneumatic plate flanging device. Background Technology

[0002] In automated automotive welding production lines, special installation locations such as the side panel lock nut box and the front and rear door lock boxes often employ multi-stage action structure designs for the flange mechanism units. This approach has the following drawbacks: the existing unit structure increases design difficulty and complexity, leading to more complex pneumatic and electronic control systems, which can easily cause intermittent equipment interference and affect line efficiency; furthermore, the cost of using a multi-stage action structure is also higher. Utility Model Content

[0003] The main technical problem to be solved by this utility model is to provide a pneumatic plate flanging device, which adopts a mechanical linkage structure and uses a single cylinder to drive a mechanical linkage to complete all operations of plate flanging, thus simplifying the structure of the flanging device and improving the working efficiency of the equipment.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A pneumatic plate flanging device includes a base, a mounting frame fixed on the top of the base, and a first hinge point, a second hinge point and a third hinge point provided on the mounting frame. A pressing flanging mechanism is hinged at the first hinge point, and a driving mechanism is hinged together at the second hinge point and the third hinge point. The pressing and flanging mechanism includes a positioning and pressing component disposed above the mounting frame. The positioning and pressing component is hinged to the mounting frame through a first hinge point, and a synchronous flanging component is provided at its front end.

[0005] The following are further optimizations of the above technical solution by this utility model: The drive mechanism includes a cylinder drive assembly and a hinge drive assembly hinged together. The cylinder drive assembly is hinged to the mounting bracket via a second hinge point, and the hinge drive assembly is hinged to the mounting bracket via a third hinge point and is movably connected to the rear end of the positioning and clamping assembly.

[0006] Further optimization: The positioning and clamping assembly includes an upper pressure arm and a lower pressure arm that are arranged vertically and hinged together in the middle. A pressure block is fixed at the bottom of the front end of the upper pressure arm. The middle part of the lower pressure arm is hinged to the mounting frame through a first hinge point. A pressure plate is fixed at the bottom of the front end of the lower pressure arm, and its rear end is movably mounted on the hinge drive assembly.

[0007] Further optimization: The synchronous flanging assembly includes a fixed frame fixedly installed at the front end of the lower pressure arm. A pair of pressing components are rotatably installed on the fixed frame, and the two pressing components are arranged on both sides of the pressing plate. A forming block is arranged below the two pressing components and the pressing plate. The forming block is fixed on the mounting frame. A synchronous transmission unit is arranged on the outer wall of the fixed frame. The synchronous transmission unit is used to drive the pressing components to rotate synchronously.

[0008] Further optimization: The synchronous transmission unit includes a transmission rack and a pair of transmission gears meshing with the transmission rack. The transmission rack is slidably mounted vertically on the front wall of the fixed frame, and a stop block is provided above it. The stop block is located directly below the pressure block and is slidably mounted vertically on the fixed frame. A return spring is installed between the stop block and the fixed frame. The two transmission gears are coaxially arranged with the mounting shaft of the corresponding pressure component and are fixedly mounted on the mounting shaft of the pressure component.

[0009] Further optimization: The hinge drive assembly includes a hinge frame disposed on the rear side of the lower pressure arm. The rear end of the lower pressure arm extends into the hinge frame and is equipped with a sliding shaft. Arc-shaped sliding grooves are provided through both sides of the hinge frame. The two ends of the sliding shaft are respectively movably installed in the corresponding arc-shaped sliding grooves. A pad is hinged to the upper end of the hinge frame. The rear end of the upper pressure arm presses against the peripheral wall of the pad. The lower end of the hinge frame is hinged to the mounting frame through a second hinge point.

[0010] Further optimization: The cylinder drive assembly includes a drive cylinder, a hinge seat is fixed on the cylinder barrel of the drive cylinder, the hinge seat is hinged to the mounting bracket through a third hinge point, and the piston rod of the drive cylinder is hinged to the rear end of the hinge bracket.

[0011] Further optimization: A lower limit block is fixed to the top of the mounting bracket, and the lower limit block is located between the first hinge point and the forming block. An upper limit block is fixed to the bottom of the upper pressure arm, and the upper limit block is adapted to the lower limit block.

[0012] Further optimization: Both ends of the molding block are provided with clearance grooves, and the positions of the clearance grooves are adapted to the positions of the pressure components.

[0013] Further optimization: Each of the four corners of the base is provided with a base plate, and a pad plate is fixed on the inner side of each base plate. The pad plate is located below the base, and a leveling bolt is installed between each pad plate and the base.

[0014] The present invention adopts the above technical solution and has the following beneficial effects: 1. This utility model adopts a mechanical linkage structure to replace the multi-power source drive in the traditional flanging device, thereby achieving a comprehensive upgrade in equipment structure, control, cost and operation and maintenance while ensuring the flanging process requirements.

[0015] 2. This utility model integrates the distributed movements that require multiple cylinders to drive separately in traditional equipment into a single-cylinder driven continuous movement by designing a multi-degree-of-freedom linkage assembly.

[0016] 3. This utility model uses a drive cylinder to output linear power, which is transmitted and the motion trajectory is converted through the hinge drive component and the pressing and flanging mechanism. This precisely drives the flipping execution component to complete the entire process of pressing, bending, and resetting, fully meeting the dimensional accuracy and forming quality requirements of the sheet metal flanging. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure in an embodiment of the present utility model; Figure 2 This is a perspective view of the overall structure in another direction in an embodiment of the present utility model; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the base structure in an embodiment of the present utility model; Figure 5 for Figure 4 Enlarged view of the structure at point B; Figure 6 This is a schematic diagram of the cylinder drive assembly in an embodiment of the present invention; Figure 7 This is a schematic diagram of the hinge drive assembly in an embodiment of the present invention; Figure 8 This is a schematic diagram of the lower pressure arm in an embodiment of the present invention; Figure 9 This is a schematic diagram of the upper pressure arm in an embodiment of the present invention; Figure 10 This is a schematic diagram of the synchronous flanging assembly in an embodiment of the present utility model; Figure 11 This is a schematic diagram of the synchronous flanging component in another direction in an embodiment of this utility model; Figure 12 This is an exploded view of the synchronous flanging component in an embodiment of this utility model; Figure 13 This is a schematic diagram showing the operating state of an embodiment of this utility model.

[0019] The components are as follows: 1. Base; 2. Mounting bracket; 3. First hinge point; 4. Second hinge point; 5. Third hinge point; 6. Upper pressure arm; 7. Lower pressure arm; 8. Pressure block; 9. Pressure plate; 10. Fixing bracket; 11. Pressing component; 12. Forming block; 13. Transmission rack; 14. Transmission gear; 15. Impact block; 16. Return spring; 17. Hinge frame; 18. Sliding shaft; 19. Arc-shaped slide groove; 20. Pad; 21. Drive cylinder; 22. Hinge seat; 23. Lower limit block; 24. Upper limit block; 25. Clearance groove; 26. Base; 27. Pad plate; 28. Leveling bolt. Detailed Implementation

[0020] 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.

[0021] like Figures 1-13 As shown in the figure, a pneumatic plate flange device includes a base 1, and a mounting bracket 2 is fixed on the top of the base 1.

[0022] In this embodiment, the base 1 includes a horizontally arranged base plate, and two symmetrically arranged columns are fixed to the top of the base plate. The tops of the two columns jointly support and fix the installation platform. The mounting frame 2 is fixed to the top surface of the installation platform by bolt connection or welding to ensure connection strength and installation accuracy.

[0023] In this embodiment, the mounting bracket 2 includes a support base for connecting to the mounting platform and an upright plate vertically fixed to the support base.

[0024] The support base adopts an integral cast structure or welded steel structure, and the upright plate avoids the opening of mounting holes and positioning slots for assembling subsequent functional components, so as to meet the assembly requirements of the mechanical linkage mechanism.

[0025] like Figures 2-5 As shown, the mounting bracket 2 is provided with a first hinge point 3, a second hinge point 4 and a third hinge point 5.

[0026] In this embodiment, bushings of appropriate specifications are embedded at the first hinge point 3, the second hinge point 4 and the third hinge point 5, and friction plates are respectively assembled on both ends of the bushings.

[0027] The bushing is made of wear-resistant engineering plastic or alloy material in one piece, which can reduce mechanical wear when the relative rotation occurs at each hinge point.

[0028] The friction plates are made of composite materials with high friction coefficient and low wear, which can effectively improve the transmission stability and structural service life of the hinge points and avoid loosening or jamming caused by long-term reciprocating motion.

[0029] Figure 2 and Figure 3 As shown, a clamping and flanging mechanism is hinged at the first hinge point 3, and a driving mechanism is hinged at the second hinge point 4 and the third hinge point 5.

[0030] like Figure 3 As shown, the pressing and flanging mechanism includes a positioning and pressing component disposed above the mounting frame 2. The positioning and pressing component is hinged to the mounting frame 2 through the first hinge point 3, and a synchronous flanging component is provided at its front end.

[0031] like Figure 2 and Figure 3 As shown in the diagram, the drive mechanism includes a cylinder drive assembly and a hinge drive assembly that are hinged together. The cylinder drive assembly is hinged to the mounting bracket 2 via a second hinge point 4, and the hinge drive assembly is hinged to the mounting bracket 2 via a third hinge point 5 and is movably connected to the rear end of the positioning and clamping assembly.

[0032] like Figure 3 and Figure 8 As shown in the figure, the positioning and clamping assembly includes an upper pressure arm 6 and a lower pressure arm 7 that are arranged vertically and hinged together in the middle.

[0033] In this embodiment, a pair of ear plates arranged vertically are fixedly mounted at a designated position on the lower pressure arm 7.

[0034] The upper ear plate is rotatably connected to the upper pressure arm 6 via a hinge pin, and the lower ear plate is hinged to the first hinge point 3 of the mounting bracket 2 via another hinge pin, so that the lower pressure arm 7 can swing flexibly around the hinge pin of the lower ear plate, thereby driving the upper pressure arm 6 to complete the preset action.

[0035] like Figure 3 and Figure 9 As shown, a pressure block 8 is fixed at the bottom of the front end of the upper pressure arm 6, and the middle part of the lower pressure arm 7 is hinged to the mounting bracket 2 through the first hinge point 3. A pressure plate 9 is fixed at the bottom of the front end of the lower pressure arm 7, and its rear end is movably mounted on the hinge drive assembly.

[0036] like Figure 2 , Figure 3 , Figures 10-12 As shown in the figure, the synchronous flanging assembly includes a fixing bracket 10 fixedly installed at the front end of the lower pressure arm 7.

[0037] In this embodiment, the fixing frame 10 is rigidly connected to the lower pressure arm 7 by bolts.

[0038] Preferably, a pair of pressing elements 11 are rotatably mounted on the fixed frame 10, and the two pressing elements 11 are arranged on both sides of the pressing plate 9. A forming block 12 is arranged below the two pressing elements 11 and the pressing plate 9. The forming block 12 is fixed on the mounting frame 2. A synchronous transmission unit is arranged on the outer wall of the fixed frame 10. The synchronous transmission unit is used to drive the pressing elements 11 to rotate synchronously.

[0039] like Figure 10 and Figure 12 As shown, the synchronous transmission unit includes a transmission rack 13 and a pair of transmission gears 14 meshing with the transmission rack 13. The transmission rack 13 is slidably mounted vertically on the front wall of the fixed frame 10, and a stop block 15 is provided above it. The stop block 15 is located directly below the pressure block 8 and is slidably mounted vertically on the fixed frame 10. A return spring 16 is installed between the stop block 15 and the fixed frame 10.

[0040] In this embodiment, the return spring 16 can be a commercially available high-strength spring.

[0041] Preferably, the two transmission gears 14 are coaxially arranged with the mounting shaft of the corresponding pressing component 11 and are fixedly installed on the mounting shaft of the pressing component 11.

[0042] In this embodiment, the synchronous transmission unit and the upper pressure arm 6 are connected by a contact clamping connection.

[0043] like Figures 2-5 , Figure 7 As shown, the hinge drive assembly includes a hinge frame 17 disposed on the rear side of the lower pressure arm 7. The rear end of the lower pressure arm 7 extends into the hinge frame 17 and is fitted with a sliding shaft 18. Arc-shaped sliding grooves 19 are provided through both sides of the hinge frame 17. The two ends of the sliding shaft 18 are respectively movably installed in the corresponding arc-shaped sliding grooves 19. A pad 20 is hingedly installed at the upper end of the hinge frame 17. The rear end of the upper pressure arm 6 presses against the peripheral wall of the pad 20. The lower end of the hinge frame 17 is hinged to the mounting frame 2 through the second hinge point 4.

[0044] like Figures 2-6 As shown in the figure, the cylinder drive assembly includes a drive cylinder 21, and a hinge seat 22 is fixed on the cylinder barrel of the drive cylinder 21. The hinge seat 22 is hinged to the mounting frame 2 through the third hinge point 5. The piston rod of the drive cylinder 21 is hinged to the rear end of the hinge frame 17.

[0045] In this embodiment, the structure of this utility model is simple and reliable. Using a single cylinder as the power source, the number of components such as cylinders, solenoid valves, and air pipelines is greatly reduced. This not only reduces the complexity of the structure, but also eliminates the structural redundancy of multi-cylinder synchronous control, making the layout of the entire flange structure more compact and reducing the probability of downtime caused by multi-component collaborative failures.

[0046] Moreover, this invention eliminates the complex programming and debugging of the action timing in a multi-cylinder structure. It can achieve precise control of the entire flanging action by simply using the extension and retraction signal of a single cylinder, making the control system connected to the flanging device more stable and reducing the risk of malfunction.

[0047] At the same time, it reduces the procurement costs of hardware such as cylinders and control valve groups, lowers the labor costs of air source pipeline layout, installation and commissioning, and in the long-term operation process, fewer components mean lower maintenance frequency and spare parts replacement costs, achieving cost savings throughout the entire life cycle.

[0048] like Figure 3 As shown, a lower limit block 23 is fixed to the top of the mounting bracket 2, and the lower limit block 23 is disposed between the first hinge point 3 and the forming block 12. An upper limit block 24 is fixed to the bottom of the upper pressure arm 6, and the upper limit block 24 is adapted to the lower limit block 23.

[0049] In this embodiment, the coordinated setting of the upper limit block 24 and the lower limit block 23 can accurately limit the lowest movement position of the lower pressure arm 7, effectively constrain its downward stroke to avoid overtravel interference, and ensure the stability and reliability of the operation of this utility model.

[0050] like Figure 4 and Figure 5 As shown, the two ends of the forming block 12 are respectively provided with relief grooves 25, and the position of the relief grooves 25 is adapted to the position of the pressing component 11.

[0051] like Figure 1 , Figure 2 and Figure 4 As shown, each of the four corners of the bottom of the base 1 is provided with a base 26, and a pad 27 is fixed on the inner side of each base 26. The pad 27 is located below the base 1, and a leveling bolt 28 is installed between each pad 27 and the base 1.

[0052] The operation procedure for completing the sheet metal flanging using this utility model is as follows: S1. Place the plate to be flanged on top of the forming block 12; S2. Start the drive cylinder 21. The piston rod of the drive cylinder 21 extends upward, causing the hinge frame 17 to rotate around the second hinge point 4 and raising the rear end of the hinge frame 17. S3, the hinge frame 17 pushes the lower pressure arm 7 to rotate around the first hinge point 3, the rear end of the lower pressure arm 7 is raised, and the front synchronous flanging assembly and the pressure plate 10 are driven to move downward toward the forming block 12 and press against the top of the plate to be flanged. S4. During the rotation of the lower pressure arm 7, its rear end pushes the rear end of the upper pressure arm 6 to rotate upward and lift it. As a result, the pressure block 8 at its front end will rotate and descend, reaching the pressing position. S5, the pressure block 8 pushes the transmission rack 13 downward through the impact block 15, and the transmission rack 13 will drive the two transmission gears 14 to rotate synchronously during the downward movement of the transmission rack 13. S6, the transmission gear 14 drives the pressing part 11 to rotate synchronously, completing the flanging action at both ends of the plate.

[0053] 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.

Claims

1. A pneumatic sheet metal flanging device, comprising a base (1), characterized in that, The base (1) is fixed with a mounting bracket (2) on top. The mounting bracket (2) is provided with a first hinge point (3), a second hinge point (4) and a third hinge point (5). A pressing and flanging mechanism is hinged at the first hinge point (3), and a driving mechanism is hinged at the second hinge point (4) and the third hinge point (5). The pressing and flanging mechanism includes a positioning and pressing component disposed above the mounting frame (2). The positioning and pressing component is hinged to the mounting frame (2) through the first hinge point (3), and a synchronous flanging component is provided at its front end.

2. The pneumatic sheet metal flanging device according to claim 1, characterized in that, The drive mechanism includes a cylinder drive assembly and a hinge drive assembly that are hinged together. The cylinder drive assembly is hinged to the mounting frame (2) through a second hinge point (4), and the hinge drive assembly is hinged to the mounting frame (2) through a third hinge point (5) and is movably connected to the rear end of the positioning and clamping assembly.

3. The pneumatic sheet metal flanging device according to claim 2, characterized in that, The positioning and pressing assembly includes an upper pressing arm (6) and a lower pressing arm (7) that are arranged vertically and hinged together in the middle. A pressing block (8) is fixed at the bottom of the front end of the upper pressing arm (6). The middle part of the lower pressing arm (7) is hinged to the mounting frame (2) through the first hinge point (3). A pressing plate (9) is fixed at the bottom of the front end of the lower pressing arm (7), and its rear end is movably mounted on the hinge drive assembly.

4. The pneumatic sheet metal flanging device according to claim 3, characterized in that, The synchronous flanging assembly includes a fixed frame (10) fixedly installed at the front end of the lower pressure arm (7). A pair of pressing parts (11) are rotatably installed on the fixed frame (10), and the two pressing parts (11) are arranged on both sides of the pressing plate (9). A forming block (12) is arranged below the two pressing parts (11) and the pressing plate (9). The forming block (12) is fixed on the mounting frame (2). A synchronous transmission unit is arranged on the outer wall of the fixed frame (10). The synchronous transmission unit is used to drive the pressing parts (11) to rotate synchronously.

5. A pneumatic sheet metal flanging device according to claim 4, characterized in that, The synchronous transmission unit includes a transmission rack (13) and a pair of transmission gears (14) meshing with the transmission rack (13). The transmission rack (13) is slidably mounted on the front wall of the fixed frame (10) in a vertical direction, and a stop block (15) is provided above it. The stop block (15) is located directly below the pressure block (8) and is slidably mounted on the fixed frame (10) in a vertical direction. A return spring (16) is installed between the stop block (15) and the fixed frame (10). The two transmission gears (14) are coaxially mounted with the mounting shaft of the corresponding pressure component (11) and are fixedly mounted on the mounting shaft of the pressure component (11).

6. A pneumatic sheet metal flanging device according to claim 3, characterized in that, The hinge drive assembly includes a hinge frame (17) located on the rear side of the lower pressure arm (7). The rear end of the lower pressure arm (7) extends into the hinge frame (17) and is fitted with a sliding shaft (18). Arc-shaped sliding grooves (19) are provided on both sides of the hinge frame (17). The two ends of the sliding shaft (18) are respectively movably installed in the corresponding arc-shaped sliding grooves (19). A pad (20) is hinged to the upper end of the hinge frame (17). The rear end of the upper pressure arm (6) presses against the peripheral wall of the pad (20). The lower end of the hinge frame (17) is hinged to the mounting frame (2) through the second hinge point (4).

7. A pneumatic sheet metal flanging device according to claim 6, characterized in that, The cylinder drive assembly includes a drive cylinder (21), a hinge seat (22) is fixed on the cylinder barrel of the drive cylinder (21), the hinge seat (22) is hinged to the mounting frame (2) through the third hinge point (5), and the piston rod of the drive cylinder (21) is hinged to the rear end of the hinge frame (17).

8. A pneumatic sheet metal flanging device according to claim 4, characterized in that, The mounting bracket (2) has a lower limit block (23) fixed at the top, and the lower limit block (23) is located between the first hinge point (3) and the forming block (12). The upper pressure arm (6) has an upper limit block (24) fixed at the bottom, and the upper limit block (24) is adapted to the lower limit block (23).

9. A pneumatic sheet metal flanging device according to claim 4, characterized in that, The molding block (12) is provided with clearance grooves (25) at both ends, and the position of the clearance grooves (25) is adapted to the position of the pressing part (11).

10. A pneumatic sheet metal flanging device according to claim 1, characterized in that, The base (1) has four corners at the bottom of each base (27) with a base plate (28) fixed on the inside of each base (27). The base plate (28) is located below the base (1), and each base plate (28) and the base (1) are connected by a leveling bolt (29).

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