A roll forming die for aluminum-magnesium alloy profiles

Abstract

The present invention discloses a roll forming die for aluminum-magnesium alloy profiles, comprising: an upper roll group and a lower roll group which are symmetrically arranged up and down, the upper roll group and the lower roll group are of a split structure, and there is a gap between the split structures for accommodating the workpiece to be roll formed, the upper roll group and the lower roll group can both rotate self-rotationally so as to roll form the workpiece to be roll formed; and a clamping and feeding assembly which can clamp the workpiece to be roll formed from the inside; and during roll forming, while the clamping and feeding assembly can drive the workpiece to be roll formed to rotate self-rotationally, it can continuously feed the workpiece to be roll formed along the extending direction of the upper roll group.

Description

Technical Field

[0001] The present invention relates to the technical field of roll forming, and particularly relates to a roll forming die for aluminum-magnesium alloy profiles. Background Art

[0002] With the development of fuel cell vehicles, the demand for type IV hydrogen storage cylinders is increasing day by day. When producing hydrogen storage cylinders, it is necessary to set a high-strength metal bottle mouth on the bottle mouth of the plastic inner liner. For the forming of the metal bottle mouth, the roll forming method can be adopted. At present, when the existing roll forming die rolls the cylindrical parts, it is often difficult to control the position of the cylindrical parts, resulting in low roll forming accuracy. And during rolling, the cylindrical parts are prone to deviation.

[0003] Therefore, it is necessary to provide a roll forming die for aluminum-magnesium alloy profiles to solve the above problems. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: A roll forming die for aluminum-magnesium alloy profiles, comprising:

[0005] An upper roll group and a lower roll group which are symmetrically arranged up and down. The upper roll group and the lower roll group are of a split structure, and there is a gap between their split structures for accommodating the workpiece to be roll formed. Both the upper roll group and the lower roll group can rotate self - sufficiently to roll the workpiece to be roll formed; and

[0006] A clamping and feeding assembly which can clamp the workpiece to be roll formed from the inside;

[0007] And during rolling, the clamping and feeding assembly can drive the workpiece to be roll formed to rotate self - sufficiently while continuously feeding the workpiece to be roll formed along the extending direction of the upper roll group.

[0008] Further, preferably, the other side of the workpiece to be roll formed is positioned and pressed by a pressing and feeding assembly;

[0009] Both the pressing and feeding assembly and the bottom of the clamping and feeding assembly are supported by a track base, and the track base is fixed to the output end of a horizontal adjusting mechanism.

[0010] Further, preferably, the clamping and feeding assembly includes:

[0011] Inner support claws which are configured to be arranged in a circumferential array, and a plurality of the inner support claws are connected to a telescopic bladder;

[0012] A first telescopic rod, one end of which is connected to the telescopic bladder and the other end is connected to a feeding mechanism;

[0013] The pressing and feeding assembly includes:

[0014] Outer pressing claws;

[0015] The second telescopic rod, one end of which is connected to the outer pressing claw, and the other end is connected to another feeding mechanism.

[0016] Further, preferably, the feeding mechanism includes:

[0017] A turntable, which is rotatably arranged on a turntable seat and is driven to rotate by an external motor;

[0018] A base for supporting and connecting the turntable seat; and

[0019] A slider, one end of which is connected to the base, and the other end is limitedly slidably arranged in a track, and the track is connected to a track seat.

[0020] Further, preferably, the outer pressing claw and the inner supporting claw have the same structure, and both include:

[0021] A connecting seat;

[0022] A limiting guide wheel, which is rotatably arranged on a connecting arm, and the other end of the connecting arm is connected to the connecting seat;

[0023] A suction cup; and

[0024] A buffer mechanism for providing buffering for the suction cup.

[0025] Further, preferably, the buffer mechanism includes:

[0026] A suction cup seat for carrying the suction cup;

[0027] A buffer body, one end of which is connected to the suction cup seat, and the other end is connected to a sliding seat; and

[0028] A first articulated rod, one end of which is articulated to the sliding seat, and the other end is articulated to a second articulated rod, and the other end of the second articulated rod is articulated to the suction cup seat, so that a triangle is formed among the first articulated rod, the second articulated rod and the buffer body.

[0029] Further, preferably, the sliding seat is slidably arranged on the connecting seat and is driven to slide by a micro telescopic controller.

[0030] Further, preferably, the horizontal adjustment mechanism is a lead screw nut pair structure.

[0031] Further, preferably, the upper roller group and the lower roller group have the same shape, and the upper roller group and the lower roller group are respectively rotatably arranged on a mounting seat and are driven to rotate by an external driving device, and the other end of the mounting seat is connected to a driving arm, and the driving arm can drive the mounting seat to be finely adjusted in the vertical direction.

[0032] Further, as an optimization, at least two types of roller bodies are arranged along the extending direction of the upper roller group, and each roller body has a shaping part. The shaping part of one type of roller body has a conical surface, and the shaping part of the other type of roller body has a conical surface and a convex surface.

[0033] Compared with the prior art, the present invention provides a roll forming die for aluminum-magnesium alloy profiles, which has the following beneficial effects:

[0034] In the embodiment of the present invention, the clamping and feeding assembly can axially position and clamp the workpiece to be roll-pressed, and the pressing and feeding assembly can axially assist in positioning and pressing the workpiece to be roll-pressed.

[0035] In the embodiment of the present invention, the rotation of the upper roller group and the lower roller group can realize the roll forming process of the workpiece to be roll-pressed, and the mutual cooperation of the clamping and feeding assembly and the pressing and feeding assembly can realize the positioning, rotational feeding, and horizontal movement feeding of the workpiece to be roll-pressed, thereby gradually realizing the conical surface shaping and stepped shaft shaping of the workpiece to be roll-pressed, improving the roll forming accuracy of the workpiece to be roll-pressed, and reducing the occurrence of free movement of the workpiece to be roll-pressed. Description of the Drawings

[0036] Figure 1 It is a schematic diagram of the overall structure of a roll forming die for aluminum-magnesium alloy profiles;

[0037] Figure 2 It is a schematic diagram of the structures of the clamping and feeding assembly and the pressing and feeding assembly in a roll forming die for aluminum-magnesium alloy profiles;

[0038] Figure 3 It is a schematic diagram of the structure of the outer pressing claw in a roll forming die for aluminum-magnesium alloy profiles;

[0039] Figure 4 It is a schematic diagram of the structure of the upper roller group in a roll forming die for aluminum-magnesium alloy profiles Figure 1 ;

[0040] Figure 5 It is a schematic diagram of the structure of the upper roller group in a roll forming die for aluminum-magnesium alloy profiles Figure 2 ;

[0041] In the figure: 1. Upper roller group; 2. Mounting seat; 3. Driving arm; 4. Lower roller group; 5. Clamping and feeding assembly; 6. Pressing and feeding assembly; 7. Rail seat; 8. Horizontal adjustment mechanism; 9. Workpiece to be roll-pressed; 51. Inner support claw; 52. Telescopic bladder; 53. First telescopic rod; 54. Turntable; 55. Rotating seat; 56. Base; 57. Slide block; 58. Rail; 59. Outer pressing claw; 510. Second telescopic rod; 591. Limit guiding wheel; 592. Connecting arm; 593. Connecting seat; 594. Suction cup; 595. Suction cup seat; 596. Buffer body; 597. Slide seat; 598. Micro telescopic controller; 599. First articulated rod; 5910. Second articulated rod; 11. Roller body; 12. Shaping part; 13. Conical surface; 14. Convex surface. Detailed implementation mode

[0042] Please refer to Figures 1 to 5 , the present invention provides a roll forming die for aluminum-magnesium alloy profiles, including:

[0043] An upper roller group 1 and a lower roller group 4 which are symmetrically arranged up and down. The upper roller group 1 and the lower roller group 4 are of a split structure, and there is a gap between their split structures for accommodating the workpiece 9 to be roll-pressed. Both the upper roller group 1 and the lower roller group 4 can rotate self-rotationally to roll-press the workpiece 9 to be roll-pressed; and

[0044] A clamping and feeding assembly 5 which can clamp the workpiece 9 to be roll-pressed from the inside;

[0045] During roll-pressing, the clamping and feeding assembly 5 can drive the workpiece 9 to be roll-pressed to rotate self-rotationally while continuously feeding the workpiece 9 to be roll-pressed along the extending direction of the upper roller group 1.

[0046] That is to say, in this embodiment, the roll-pressing process of the workpiece 9 to be roll-pressed can be realized by the self-rotation of the upper roller group 1 and the lower roller group 1, and the positioning, rotational feeding and horizontal moving feeding of the workpiece 9 to be roll-pressed can be realized by the clamping and feeding assembly 5, improving the roll-pressing accuracy of the workpiece 9 to be roll-pressed and reducing the free movement of the workpiece to be roll-pressed.

[0047] As a preferred embodiment, the other side of the workpiece 9 to be roll-pressed is positioned and pressed by a pressing and feeding assembly 6;

[0048] Both the pressing and feeding assembly 6 and the bottom of the clamping and feeding assembly 5 are supported by a rail seat 7, and the rail seat 7 is fixed to the output end of a horizontal adjustment mechanism 8.

[0049] It should be noted that the clamping and feeding assembly 5 can clamp the workpiece 9 to be roll-pressed from the radial direction, while the pressing and feeding assembly 6 can assist in pressing the workpiece 9 to be roll-pressed from the axial direction, and the pressing and feeding assembly 6 can also provide axial positioning for the workpiece 9 to be roll-pressed.

[0050] In this embodiment, asFigure 2 , the clamping and feeding assembly 5 includes:

[0051] Inner support claws 51, which are configured to be multiple and arranged in a circumferential array, and the multiple inner support claws 51 are connected to the telescopic bladder 52;

[0052] The first telescopic rod 53, one end of which is connected to the telescopic bladder 52 and the other end is connected to the feeding mechanism;

[0053] The pressing and feeding assembly 6 includes:

[0054] Outer pressing claw 59;

[0055] The second telescopic rod 510, one end of which is connected to the outer pressing claw 59 and the other end is connected to another feeding mechanism.

[0056] Specifically, the feeding mechanism includes:

[0057] A turntable 54, which is rotatably arranged on a turntable seat 55 and is driven to rotate by an external motor;

[0058] A base 56 for supporting and connecting the turntable seat 55; and

[0059] A slider 57, one end of which is connected to the base 56 and the other end is slidably arranged in a track 58 in a limited manner, and the track 58 is connected to a track seat 7.

[0060] It should be noted that the track 58 extends along the distribution direction of the upper roller group 1, and the slider 57 is slidably arranged on the track 58 and is driven by an external mobile device.

[0061] In addition, as Figure 3 , the outer pressing claw 59 and the inner support claw 51 have the same structure, and both include:

[0062] A connecting seat 593;

[0063] A limit guide wheel 591, which is rotatably arranged on a connecting arm 592, and the other end of the connecting arm 592 is connected to the connecting seat 593;

[0064] A suction cup 594; and

[0065] A buffer mechanism for providing buffering for the suction cup 594.

[0066] As a preferred embodiment, the buffer mechanism includes:

[0067] A suction cup seat 595 for carrying the suction cup 594;

[0068] A buffer body 596, one end of which is connected to the suction cup seat 595 and the other end is connected to a sliding seat 597; and

[0069] The first articulated rod 599 is articulated at one end to the sliding seat 597 and at the other end to the second articulated rod 5910, and the other end of the second articulated rod 5910 is articulated to the suction cup seat 595, so that a triangle is formed among the first articulated rod, the second articulated rod and the buffer body 596;

[0070] The sliding seat 597 is slidably arranged on the connecting seat 593 and is driven to slide by the micro telescopic controller 598.

[0071] That is to say, the limit guiding wheel 591 can facilitate placing the workpiece to be roll-pressed on the clamping and feeding assembly, and the limit guiding wheel 591 can also provide a limiting function, while the suction cup can improve the clamping and positioning effects.

[0072] In this embodiment, the horizontal adjustment mechanism 8 is a lead screw and nut pair structure.

[0073] In this embodiment, as Figure 1 , the upper roll group 1 and the lower roll group 4 have the same shape. The upper roll group 1 and the lower roll group 4 are respectively rotatably arranged on the mounting seat 2 and are driven to rotate by an external driving device. The other end of the mounting seat 2 is connected to the driving arm 3, and the driving arm 3 can drive the mounting seat 2 to make fine adjustment in the vertical direction.

[0074] In this embodiment, as Figure 4 and 5 , at least two types of roll bodies 11 are arranged along the extending direction of the upper roll group 1. The roll body 11 has a shaping part 12. The shaping part of one type of roll body has a conical surface 13, and the shaping part of another type of roll body has a conical surface and a convex surface 14.

[0075] Among them, the conical surface 13 can construct a conical surface for the workpiece to be roll-pressed 9, and the convex surface 14 can construct a stepped shaft for the workpiece to be roll-pressed 9.

[0076] In specific implementation, first, the clamping and feeding assembly 5 is used to axially position and clamp the workpiece to be roll-pressed 9, and the pressing and feeding assembly 6 is used to axially assist in positioning and pressing the workpiece to be roll-pressed 9. Subsequently, the self-rotation of the upper roll group 1 and the lower roll group 1 can realize the roll-pressing process for the workpiece to be roll-pressed 9, and the mutual cooperation of the clamping and feeding assembly 5 and the pressing and feeding assembly 6 can realize the positioning, rotational feeding and horizontal moving feeding of the workpiece to be roll-pressed 9, and then gradually realize the conical surface shaping and stepped shaft shaping of the workpiece to be roll-pressed 9 to form the bottle mouth of the gas cylinder.

[0077] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention any equivalent replacement or change made according to the technical solution and inventive concept of the present invention.

Claims

1. A roll forming die for aluminum-magnesium alloy profiles, characterized in that: Comprising: An upper roll group (1) and a lower roll group (4) which are symmetrically arranged up and down. The upper roll group (1) and the lower roll group (4) are of a split structure, and there is a gap between their split structures for accommodating the workpiece to be roll-pressed (9). Both the upper roll group (1) and the lower roll group (4) can rotate selflessly to roll-press the workpiece to be roll-pressed (9); and A clamping and feeding assembly (5) which can clamp the workpiece to be roll-pressed (9) from the inside; During roll-pressing, the clamping and feeding assembly (5) can drive the workpiece to be roll-pressed (9) to rotate selflessly while continuously feeding the workpiece to be roll-pressed (9) along the extension direction of the upper roll group (1); The other side of the workpiece to be roll-pressed (9) is positioned and pressed by a pressing and feeding assembly (6); Both the pressing and feeding assembly (6) and the bottom of the clamping and feeding assembly (5) are supported by a rail seat (7), and the rail seat (7) is fixed to the output end of a horizontal adjustment mechanism (8); The clamping and feeding assembly (5) includes: Inner support claws (51) which are configured to be arranged in a circumferential array, and a plurality of the inner support claws (51) are connected to an expansion bladder (52); A first telescopic rod (53) whose one end is connected to the expansion bladder (52) and the other end is connected to a feeding mechanism; The pressing and feeding assembly (6) includes: An outer pressing claw (59); A second telescopic rod (510) whose one end is connected to the outer pressing claw (59) and the other end is connected to another feeding mechanism; The feeding mechanism includes: A turntable (54) which is rotatably arranged on a turret (55) and is driven to rotate by an external motor; A base (56) for supporting and connecting the turret (55); and A slider (57) whose one end is connected to the base (56) and the other end is limited to slide in a rail (58), and the rail (58) is connected to the rail seat (7); The outer pressing claw (59) has the same structure as the inner support claw (51), and both include: A connecting seat (593); A limiting guide wheel (591) which is rotatably arranged on a connecting arm (592), and the other end of the connecting arm (592) is connected to the connecting seat (593); A suction cup (594); and A buffer mechanism for providing buffering for the suction cup (594).

2. The roll forming die for an aluminum-magnesium alloy profile according to claim 1, wherein: The buffer mechanism includes: A suction cup seat (595) for carrying the suction cup (594); A buffer body (596) whose one end is connected to the suction cup seat (595) and the other end is connected to a sliding seat (597); and A first articulated rod (599) whose one end is articulated to the sliding seat (597) and the other end is articulated to a second articulated rod (5910), and the other end of the second articulated rod (5910) is articulated to the suction cup seat (595) so that a triangle is formed among the first articulated rod, the second articulated rod and the buffer body (596).

3. The roll forming die for an aluminum-magnesium alloy profile according to claim 2, characterized in that: The sliding seat (597) is slidably arranged on the connecting seat (593) and is driven to slide by a micro telescopic controller (598).

4. A roll forming die for an aluminum-magnesium alloy profile according to claim 1, characterized in that: The horizontal adjustment mechanism (8) is of a lead screw and nut pair structure.

5. The roll forming die for an aluminum-magnesium alloy profile according to claim 1, characterized in that: The upper roll group (1) has the same shape as the lower roll group (4). The upper roll group (1) and the lower roll group (4) are respectively rotatably arranged on the mounting seat (2) and driven to rotate by an external driving device. The other end of the mounting seat (2) is connected to the driving arm (3), and the driving arm (3) can drive the mounting seat (2) to be finely adjusted vertically.

6. The roll forming die for an aluminum-magnesium alloy profile according to claim 5, characterized in that: At least two types of roll bodies (11) are arranged along the extension direction of the upper roll group (1). The roll body (11) has a shaping part (12). The shaping part of one type of roll body has a conical surface (13), and the shaping part of the other type of roll body has a conical surface and a convex surface (14).

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