Cylinder flanging device

Abstract

The utility model relates to a cylinder flanging device. The cylinder flanging device comprises a rotary table driven by a rotating mechanism, a flanging wheel and an X-axis and Y-axis linear module, at least three supporting petals are arranged on the rotary table, gaps are formed between the supporting petals, and the supporting petals can move in the radial direction of the rotary table. The supporting petals are connected with elastic pieces enabling the supporting petals to tend to contract inwards. An expansion core capable of rotating is further arranged above the rotary table; an annular forming groove is formed in the circumferential surface of the flanging wheel; the flanging wheel rotating shaft and the rotary table rotating shaft are vertically intersected and are rotatably arranged on the XY-axis linear module; the XY-axis linear module is used for driving a forming groove in the circumferential face of the flanging wheel to abut against the upper end of the rotary table upper cylinder. The device has the advantages that a plurality of supporting petals are designed to carry out internal tensioning and fixing on the round pipe, deformation of the round pipe cannot be caused in the centering process, rounding treatment is carried out on deformation generated before centering and fixing, then repeated circulating flanging is carried out through the flanging wheel, and the influence on the cylinder flanging quality due to flanging springback is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a cylinder flanging device. Background Art

[0002] Currently, a wide range of metal cylinders are hemming-processed. For thin-walled cylinders, existing hemming equipment can easily cause overall deformation of the cylinder, making it difficult to control hemming precision. This can lead to defects such as springback and uneven shaping, impacting component quality.

[0003] Moreover, some metal cylinders with thinner walls often become deformed before the centering and fixing process, and their roundness is insufficient, so they need to be rounded before they can be centered and fixed.

[0004] Therefore, it is necessary to improve and optimize the existing cylinder flanging device so that it can better meet user needs. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to address the shortcomings of the existing technical structure and propose a cylinder flanging device. By designing multiple support petals, the circular tube is internally tightened and fixed. Not only will it not cause its deformation during the centering process, but the deformation that has already occurred before centering and fixing is also rounded. After that, the flanging is repeatedly circulated by the flanging wheel, so that the edge of the cylinder can maintain the curling state, reducing the impact of the flanging rebound on the quality of the cylinder flanging.

[0006] In order to achieve the above-mentioned purpose of the utility model, a cylindrical flanging device proposed in the embodiment of the utility model is realized by the following technical solutions:

[0007] A cylindrical flanging device, characterized in that the flanging device comprises:

[0008] A turntable driven by a rotating mechanism to rotate horizontally is provided with at least three support petals rotationally symmetrical about the turntable's rotation axis, with gaps between the support petals, which are movable radially along the turntable; the support petals are connected to elastic members that tend to contract inward; and an expansion core is also provided above the turntable, which is rotatable and can be selectively pressed downward to insert into the support petals, causing them to expand outward.

[0009] The flanging wheel has an annular forming groove on its circumference; the flanging wheel rotation axis and the turntable rotation axis intersect vertically and are rotatably arranged on the XY axis linear module; the XY axis linear module is used to drive the forming groove on the circumference of the flanging wheel to press against the upper end of the cylinder on the turntable.

[0010] The expansion core is rotatably arranged on the Y-axis linear module and is driven thereby to move up and down along the rotation axis of the turntable.

[0011] Wherein, the expanding core is roughly in the shape of an inverted cone or a truncated cone.

[0012] Wherein, the Y-axis linear module includes an electric push rod.

[0013] Among them, the X-axis of the XY-axis linear module includes a horizontal guide rail, a translation stage movably arranged on the horizontal guide rail, a servo motor, a screw, a nut threadedly connected to the screw, and a coupling connected between the servo motor output shaft and the screw; the translation stage and the nut are fixedly connected.

[0014] Among them, the Y-axis of the XY-axis linear module includes a vertical guide rail, a lifting platform movably set on the vertical guide rail, a servo motor, a screw, a nut threadedly connected to the screw, and a coupling connected between the servo motor output shaft and the screw; the lifting platform and the nut are fixedly connected; the servo motor is fixed on the translation platform; the flanging wheel is rotatably set on the lifting platform.

[0015] Wherein, a groove is transversely provided on the circumferential surface of the support petal, and the elastic member is an elastic ring, which is sleeved on the circumferential surfaces of the three support petals and embedded in the groove.

[0016] Among them, the support petals are roughly fan-shaped, with a long waist hole vertically opened on it; three guide columns are vertically set up on the turntable, and the support petals are correspondingly mounted on the guide columns one by one so as to be able to move radially along the turntable.

[0017] Compared with the existing technology, the beneficial effect of the utility model is that by designing multiple support petals to tighten and fix the circular tube internally, not only will it not cause its deformation during the centering process, but the deformation that has already occurred before centering and fixing is also rounded off, and then the flanging is repeatedly circulated by the flanging wheel, so that the edge of the cylinder can maintain the curling state, reducing the impact of flanging rebound on the quality of the cylinder flanging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above features and advantages of the present invention will become clearer and easier to understand through the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.

[0019] Figure 1 This is a three-dimensional schematic diagram I of the molding device according to an embodiment of the present utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram II of the molding equipment according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the device for installing the flanging wheel after removing the Y-axis linear module according to the embodiment of the utility model;

[0022] Figure 4This is a schematic diagram of the coordination relationship among the turntable, the flanging wheel and the limiting wheel according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the coordination relationship between the turntable, core expansion and Y-axis linear module in an embodiment of the present utility model;

[0024] Figure 6 This is a three-dimensional schematic diagram of a turntable according to an embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the turntable portion of an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0027] The terms "front", "back", "left", "right", "inside", and "outside" used in this specification are for the purpose of clarification only and are not intended to limit the applicable scope of the present invention. Any changes or adjustments to the relative relationships thereof without substantially changing the technical content shall be deemed to be within the applicable scope of the present invention.

[0028] In the following descriptions of the embodiments, unless otherwise specified or limited, the term "connection" and other terms should be understood in a broad sense. For example, "connection" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an indirect connection through an intermediate medium; it can refer to internal communication between two components or an interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] See also Figure 1-7 As shown, the embodiment of the present invention proposes a cylindrical flanging device, including a turntable assembly, a core expansion assembly 2, a flanging wheel 3, an XY axis linear module 4, and a mounting seat 5, wherein:

[0030] Turntable assembly

[0031] join Figure 5-7 As shown, the turntable assembly includes a turntable 1, the rotating shaft of the turntable 1 is fixed to the output end of a rotating mechanism, and is driven by the rotating mechanism to rotate horizontally at a uniform speed. In this embodiment, the rotating mechanism is a servo motor 12, of course, other devices that can achieve uniform rotation can also be used.

[0032] The turntable 1 is equipped with three support petals 11. These petals 11 are roughly annular in shape, with their outer circumferences forming a cylindrical surface that aligns with the inner wall of the cylinder. The three support petals 11 are rotationally symmetrical about the rotation axis of the turntable 1. The support petals 11 are movable radially along the turntable, with gaps between them allowing them to retract inward.

[0033] Specifically, the support petals 11 are vertically defined with elongated waist holes 111, while the turntable 1 is vertically defined with three guide posts 13. These guide posts 13 have through-holes and are connected to the turntable 1 via bolts 14. The guide posts 13 have two relatively parallel sidewalls, the spacing between which matches the width of the elongated waist holes 111. The support petals 11 are sleeved onto the guide posts 13 in a one-to-one correspondence, allowing them to move radially along the turntable 1 without rotating. Furthermore, the heads of the guide posts 13 are provided with flanges 131 to prevent the support petals 11 from dislodging from the guide posts 13.

[0034] The support petals 11 are connected with elastic members that make them tend to contract inwards. Specifically, the support petals 11 are transversely provided with grooves 112 on their circumferences, and the elastic members are elastic rings that are sleeved on the circumferences of the three support petals 11 and embedded in the grooves 112.

[0035] Core expansion component 2

[0036] See also Figure 5 As shown, the core expansion assembly 2 mainly includes a core expansion 21 and a Y-axis linear module 22 that drives the core expansion 21 to move up and down. Among them, the core expansion 21 is arranged above the turntable 1, and is intermittently pressed down to insert into the support petals 11, so that the three-petal support petals 11 are opened outward, and then the tension cylinder plays a fixing role. The core expansion 21 is roughly inverted cone or truncated cone shape, and is driven by the Y-axis linear module 22 to move up and down along the rotation axis of the turntable 1. In this embodiment, the Y-axis linear module 22 is composed of a vertically arranged guide column 221, a lifting platform 222 that moves up and down along the guide column 221, a lifting mechanism 223 that drives the lifting platform 222 to move up and down, and a column 224 fixed on the lifting platform 222. The core expansion 21 is fixed to the end of the column 224. Obviously, other devices that can achieve lifting, such as electric push rods, cylinders, etc., can also be used here and also fall within the scope of protection of this patent.

[0037] In order to cooperate with the rotation of the turntable 1 , the expansion core 21 is installed at the end of the column 224 through a bearing. After being inserted into the support petal 11 , it can rotate with the rotation of the turntable 1 .

[0038] Mount 4

[0039] The mounting seat 4 is a seat body for rotatably mounting the flanging wheel 6 and the second flanging wheel 7 .

[0040] XY axis linear module 5

[0041] See also Figure 1-4 As shown, the XY axis linear module 5 is used to drive the mounting base to perform horizontal and vertical displacement. Specifically:

[0042] The X-axis 51 of the XY-axis linear module 5 includes a horizontal guide rail 511, a translation stage 513 movably mounted on the horizontal guide rail 511, a servo motor 514, a lead screw 515, a nut threadedly connected to the lead screw 515, and a coupling 512 connected between the output shaft of the servo motor 514 and the lead screw 515. The translation stage 513 and the nut are fixedly connected.

[0043] The Y-axis 52 of the XY-axis linear module 5 comprises a vertical guide rail 521, a lifting platform 522 movably mounted on the vertical guide rail 521, a servo motor 523, a lead screw 524, a nut threaded onto the lead screw 524, and a coupling 525 connected between the output shaft of the servo motor 523 and the lead screw 524. The lifting platform 522 and the nut are fixedly connected. The servo motor 523 is fixed to the translation stage 513, and the lead screw 524 is rotatably mounted on the translation stage 513. The mounting base 4 is fixed to the lifting platform 522.

[0044] Flanging wheel 3

[0045] See also Figure 4 As shown, the flanging wheel 3 can be detachably rotatably mounted on the mounting base 4, and the rotation axis of the flanging wheel 3 is perpendicularly intersected with the rotation axis of the turntable 1. An annular forming groove 31 is provided on the circumference of the flanging wheel 3.

[0046] The following is a brief description of the working principle of the device in combination with the above device structure:

[0047] 1. When the upper frame is crimped using the flanging wheel 3, the cylinder is sleeved on the support petal 11, and then the expansion core 2 is inserted into the support petal 11, so that the support petal 11 opens outward, and the cylinder is fixed by the inner support;

[0048] 2. Then the servo motor 12 drives the turntable 1 to rotate, which in turn drives the cylinder to rotate;

[0049] 3. The XY axis linear module 5 drives the mounting seat 4 to move so that the forming groove on the circumference of the upper flanging wheel 3 presses against the upper end of the cylinder on the turntable 1;

[0050] 4. The XY axis linear module 5 drives the mounting base 4 to further translate, causing the flanging wheel 3 to move slightly in the radial direction of the turntable. The flanging wheel 3 moves outward to curl the edge of the cylinder outward, and moves inward to curl the edge of the cylinder inward.

[0051] The servo motor 12 drives the turntable 1 to rotate, and the edge of the cylinder is repeatedly pressed by the second flanging wheel 7 until it is formed. Compared with the prior art, the beneficial effects of the present invention are:

[0052] The flanging wheel and the limiting wheel clamp the edge of the cylinder, causing it to be folded vertically relative to the cylinder body. The cylinder is then rotated multiple times to repeatedly bend the vertically folded edge, allowing the cylinder edge to maintain its vertical folded state, reducing the impact of flanging rebound on the cylinder flanging quality. This also reduces the phenomenon of burring on the cylinder during the flanging process, thereby effectively improving the flanging quality of the cylinder.

[0053] The above embodiments describe the utility model intention and implementation methods of the utility model in detail, but a person skilled in the art in the art will understand that the above embodiment of the utility model is only one of the preferred embodiments of the utility model. Due to space limitations, not all implementation methods can be listed here one by one. Any implementation that can embody the technical solution of the claims of the utility model is within the scope of protection of the utility model.

[0054] It should be noted that the above content is a further detailed description of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation methods of the present invention are limited to these. Under the guidance of the above embodiments, those skilled in the art can make various improvements and modifications on the basis of the above embodiments, and these improvements or modifications fall within the scope of protection of the present invention.

Claims

1. A cylindrical flanging device, characterized in that: The flanging device comprises: A turntable driven by a rotating mechanism to rotate horizontally is provided with at least three support petals rotationally symmetrical about the turntable's rotation axis, with gaps between the support petals, which are movable radially along the turntable; the support petals are connected to elastic members that tend to contract inward; and an expansion core is also provided above the turntable, which is rotatable and can be selectively pressed downward to insert into the support petals, causing them to expand outward. The flanging wheel has an annular forming groove on its circumference; the flanging wheel rotation axis and the turntable rotation axis intersect vertically and are rotatably arranged on the XY axis linear module; the XY axis linear module is used to drive the forming groove on the circumference of the flanging wheel to press against the upper end of the cylinder on the turntable.

2. A cylindrical flanging device according to claim 1, characterized in that: The expansion core is rotatably arranged on the Y-axis linear module and is driven thereby to move up and down along the rotation axis of the turntable.

3. The cylindrical flanging device according to claim 2, characterized in that: The expanding core is roughly in the shape of an inverted cone or a truncated cone.

4. A cylindrical flanging device according to claim 3, characterized in that: The Y-axis linear module includes an electric push rod.

5. The cylindrical flanging device according to claim 1, characterized in that: The X-axis of the XY-axis linear module includes a horizontal guide rail, a translation stage movably arranged on the horizontal guide rail, a servo motor, a lead screw, a nut threadedly connected to the lead screw, and a coupling connected between the servo motor output shaft and the lead screw; the translation stage and the nut are fixedly connected.

6. The cylindrical flanging device according to claim 5, characterized in that: The Y-axis of the XY-axis linear module includes a vertical guide rail, a lifting platform movably arranged on the vertical guide rail, a servo motor, a lead screw, a nut threadedly connected to the lead screw, and a coupling connected between the servo motor output shaft and the lead screw; the lifting platform and the nut are fixedly connected; the servo motor is fixed on the translation platform; and the flanging wheel is rotatably arranged on the lifting platform.

7. The cylindrical flanging device according to claim 1, characterized in that: A groove is transversely provided on the circumferential surface of the support petal, and the elastic member is an elastic ring. The elastic ring is sleeved on the circumferential surfaces of the three support petals and embedded in the groove.

8. The cylindrical flanging device according to claim 7, characterized in that: The support petals are roughly fan-shaped, with a long waist hole vertically opened on them; three guide columns are vertically set up on the turntable, and the support petals are correspondingly mounted on the guide columns one by one so as to be able to move along the radial direction of the turntable.

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