Cylindrical pipe expanding and vertical flanging device

Abstract

The utility model relates to a cylinder pipe expanding and vertical flanging device. The cylinder pipe expanding and vertical flanging device comprises a rotary table driven by a rotating mechanism, a limiting wheel, a flanging wheel and an X-axis and Y-axis linear module. The rotary table is provided with at least three supporting petals which are rotationally symmetrical around a rotary shaft of the rotary table, gaps are formed among 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 which is pressed downwards in a clearance mode so as to be inserted into the supporting petals is further arranged above the rotary table. The limiting wheel rotating shaft is perpendicular to the turntable and arranged on one side of the turntable; the flanging wheel is rotatably arranged on the XY-axis linear module, and a rotating shaft of the flanging wheel is perpendicular to the rotary table. The pipe expanding and vertical flanging machine has the advantage that pipe expanding and vertical flanging processes can be realized by controlling the strokes of the flanging wheels. And the flanging wheel is matched with the limiting wheel, so that the edge of the cylinder can be kept in a vertical folding state, and the influence on the flanging quality of the cylinder due to flanging springback is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and in particular to a cylindrical tube expansion and vertical flanging device. Background Technology

[0002] Currently, metal cylinders widely use flanging technology, including rolled edges and vertical flanging.

[0003] The existing vertical flanging process is difficult to control and is prone to problems such as flanging springback and roughening (burrs appear on the surface of the component), which affect the quality of the component.

[0004] Therefore, it is necessary to improve and optimize the existing cylindrical tube expansion and vertical flanging devices to better meet user needs. Utility Model Content

[0005] The purpose of this utility model embodiment is to address the shortcomings of existing technologies by proposing a cylindrical tube expansion and vertical flanging device. When the flanging wheel abuts against the inner side of the cylinder, the tube expansion and vertical flanging processes can be achieved by controlling the stroke of the flanging wheel. During vertical flanging, the flanging wheel and the limiting wheel cooperate to clamp the edge of the cylinder, causing this part to be folded vertically relative to the cylinder body. By rotating the cylinder multiple times, the vertically folded edge is repeatedly bent, thereby maintaining the vertically folded state of the cylinder edge and reducing the impact of flanging springback on the cylinder flanging quality.

[0006] To achieve the aforementioned objectives, the present invention provides a cylindrical tube expansion and vertical flanging device through the following technical solution:

[0007] A cylindrical tube expansion device and a vertical flanging device, characterized in that the flanging device comprises:

[0008] A turntable that rotates horizontally driven by a rotating mechanism has at least three support petals that are symmetrical about the turntable's axis of rotation. These support petals are spaced apart and can move radially along the turntable. The support petals are connected to elastic members that tend to contract inward. Above the turntable, there is also an expansion core that can be rotated and selectively pressed down to insert into the support petals, causing the support petals to open outward.

[0009] The limiting wheel located on one side of the turntable has its axis of rotation vertically set so that the circumferential surface of the cylinder on the turntable, which is expanded by the support petals, abuts against the circumferential surface of the limiting wheel.

[0010] The flanging wheel has a cylindrical peripheral surface and is rotatably arranged on an XY-axis linear module; the limiting wheel rotation shaft, the rotary table rotation shaft and the flanging wheel rotation shaft are located on the same virtual plane; the XY-axis linear module is used to drive the flanging wheel peripheral surface to abut against the inner / outer side surface of the rotary table cylindrical edge, thereby driving the flanging wheel to move radially outward / inward along the rotary table.

[0011] The rising core is rotatably arranged on a Y-axis linear module and is driven by the Y-axis linear module to be able to move up and down along the rotary disc rotation axis.

[0012] The rising core is roughly inverted in a conical or circular table shape.

[0013] The Y-axis linear module comprises an electric push rod.

[0014] The X-axis of the XY-axis linear module comprises a horizontal guide rail, a translation table movably arranged on the horizontal guide rail, a servo motor, a lead screw, a nut threadedly connected to the lead screw, and a shaft coupling connected between the servo motor output shaft and the lead screw; the translation table and the nut are fixedly connected.

[0015] The Y-axis of the XY-axis linear module comprises a vertical guide rail, a lifting table movably arranged on the vertical guide rail, a servo motor, a lead screw, a nut threadedly connected to the lead screw, and a shaft coupling connected between the servo motor output shaft and the lead screw; the lifting table and the nut are fixedly connected; the servo motor is fixed to the translation table; the flanging wheel is connected to the mounting seat through an adapter rod, the flanging wheel is rotatably arranged at the lower end of the adapter rod, the upper end of the adapter rod and the mounting seat are detachably fixed, and the mounting seat is fixed to the lifting table.

[0016] The support petal peripheral surface is transversely provided with a groove, and the elastic member is an elastic ring, which is sleeved on the peripheral surfaces of the three support petals and embedded in the groove.

[0017] The support petal is roughly in a fan ring shape and vertically provided with a long waist hole, three guide columns are vertically arranged on the rotary table, and the support petals are correspondingly sleeved on the guide columns to be able to move radially along the rotary table.

[0018] Compared with the prior art, the flanging wheel abuts against the inner side of the cylinder, and the pipe expanding and the vertical flanging process can be realized by controlling the flanging wheel stroke. In the vertical flanging process, the flanging wheel and the limiting wheel can be matched and the cylinder edge can be clamped, so that this part is vertically folded relative to the cylinder body, and the vertically folded edge is repeatedly bent by rotating the cylinder for several turns, so that the cylinder edge can keep the vertically folded state, and the influence of flanging rebound on the cylinder flanging quality is reduced. The flanging process can also reduce the cylinder fuzz phenomenon, thereby effectively improving the cylinder flanging quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above features and advantages of the present application will become more apparent and easily understood from the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.

[0020] Figure 1 Figure 1 is a perspective view of a forming apparatus according to an embodiment of the present application;

[0021] Figure 2 Figure 2 is a perspective view of a forming apparatus according to an embodiment of the present application;

[0022] Figure 3 Figure 3 is a schematic view of an apparatus structure for removing a Y-axis linear module according to an embodiment of the present application;

[0023] Figure 4 Figure 4 is a schematic view of a cooperation relationship between a turntable, a flanging wheel and a limiting wheel according to an embodiment of the present application;

[0024] Figure 5 Figure 5 is a schematic view of a cooperation relationship between a turntable, a flanging wheel and a limiting wheel according to an embodiment of the present application;

[0025] Figure 6 Figure 6 is a schematic view of a cooperation relationship between a turntable, a flanging wheel and a limiting wheel according to an embodiment of the present application;

[0026] Figure 7 Figure 7 is a perspective view of a turntable according to an embodiment of the present application;

[0027] Figure 8 Figure 8 is a schematic view of a partial structure of a turntable according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The above features and advantages of the present application will become more apparent and easily understood from the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.

[0029] The terms such as "front", "rear", "left", "right", "inner", "outer" and the like cited in the present specification are merely for the convenience of clear description, and are not intended to limit the scope of the present application. The change or adjustment of the relative relationship without substantial change in the technical content is also considered as the scope of the present application.

[0030] In the description of the following embodiments, unless otherwise explicitly specified and limited, the term "connection" and other terms should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Referring to Figures 1-8 As shown in the utility model embodiment, a cylindrical pipe expanding and vertical flanging device is provided, which comprises a rotary table assembly, a core expanding assembly 2, a limiting wheel assembly 3, an XY axis linear module 4, a mounting seat 5, a flanging wheel 6, wherein:

[0032] Rotary table assembly

[0033] Participate Figures 6-8 As shown in the utility model embodiment, the rotary table assembly comprises a rotary table 1, and the rotating shaft of the rotary table 1 is fixed on the output end of a rotating mechanism, and rotates horizontally at a uniform speed under the driving of the rotating mechanism. In the embodiment, the rotating mechanism is a servo motor 12, and of course other devices that can realize uniform rotation can also be adopted.

[0034] Three support petals 11 are arranged on the rotary table 1, and the support petals 11 are substantially in the shape of a fan ring, and the outer circumferential surface thereof is a cylindrical surface matched with the inner wall of the cylinder. The three support petals 11 are rotationally symmetrical about the rotating shaft of the rotary table 1. The support petals 11 can move radially along the rotary table, and gaps are arranged between the support petals 11, so that the support petals 11 can be inwardly retracted.

[0035] Specifically, a long waist hole 111 is vertically arranged on the support petal 11, and three guide columns 13 are vertically arranged on the rotary table 1, and through holes are arranged on the guide columns 13 and connected to the rotary table 1 through bolts 14. The guide column 13 has two opposite parallel side walls, and the distance between the two side walls is matched with the width of the long waist hole 111, and the support petal 11 is correspondingly sleeved on the guide column 13, so as to move radially along the rotary table 1 and cannot rotate. In addition, the head of the guide column 13 is provided with a flange 131 for stopping the support petal 11 from being detached from the guide column 13.

[0036] The support petal 11 is connected with an elastic element for tending to retract inwardly. Specifically, a recess 112 is horizontally arranged on the circumferential surface of the support petal 11, and the elastic element is an elastic ring, which is sleeved on the circumferential surface of the three support petals 11 and embedded in the recess 112.

[0037] Core expanding assembly 2

[0038] Referring to Figure 6As shown, the core-expanding assembly 2 mainly comprises a core-expanding element 21 and a Y-axis linear module 22 for driving the core-expanding element 21 to move up and down. The core-expanding element 21 is arranged above the rotary table 1 and is pressed into the support petals 11 intermittently, so as to expand the three support petals 11 outward and then the core-expanding cylinder plays a role of fixation. The core-expanding element 21 is roughly inverted conical or circular truncated cone-shaped, and is driven by the Y-axis linear module 22 to move up and down along the rotary axis of the rotary table 1. In the embodiment, the Y-axis linear module 22 is composed of a vertical guide column 221, a lifting platform 222 moving up and down along the guide column 221, a lifting mechanism 223 driving the lifting platform 222 to move up and down, and a vertical column 224 fixed to the lifting platform 222, and the core-expanding element 21 is fixed to the end of the vertical column 224. Obviously, other devices capable of moving up and down, such as electric push rods and air cylinders, can also be applied to this embodiment and also belong to the protection scope of the present patent.

[0039] In order to cooperate with the rotation of the rotary table 1, the core-expanding element 21 is mounted to the end of the vertical column 224 through a bearing, and can rotate with the rotary table 1 after being inserted into the support petals 11.

[0040] Limiting wheel 3

[0041] The limiting wheel 3 is an optional component and is used in cooperation with the flanging wheel 6. Therefore, the limiting wheel 3 is fixed on the frame through bolts and is selectively installed by dismounting the bolts. The limiting wheel 3 is a passive wheel, and its rotation axis is perpendicular to the rotary table 1 and is arranged on one side of the rotary table 1. When the cylinder on the rotary table 1 is expanded by the support petals 11, the peripheral surface of the cylinder abuts against the peripheral surface of the limiting wheel 3.

[0042] Mounting seat 4

[0043] The mounting seat 4 is a seat body for rotatably mounting the flanging wheel 6.

[0044] XY-axis linear module 5

[0045] Referring to Figures 1-4 As shown, the XY-axis linear module 5 is used to drive the mounting seat to move in two axes horizontally and vertically. Specifically:

[0046] The X-axis 51 of the XY-axis linear module 5 comprises a horizontal guide rail 511, a translation platform 513 movably arranged 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 platform 513 and the nut are fixedly connected.

[0047] The Y axis 52 of the XY axis linear module 5 comprises a vertical guide rail 521, a lifting platform 522 movably arranged on the vertical guide rail 521, a servo motor 523, a lead screw 524, a nut threadedly connected to the lead screw 524, and a shaft coupling 525 connected between the output shaft of the servo motor 523 and the lead screw 524. The lifting platform 522 is fixedly connected to the nut. The servo motor 523 is fixed to the translation platform 513, and the lead screw 524 is rotatably mounted on the translation platform 513. The mounting seat 4 is fixed to the lifting platform 522.

[0048] The flanging wheel 6

[0049] Referring to Figures 3-5 As shown in the figure, the flanging wheel 6 is selectively mounted on the mounting seat 4, and the rotation shaft thereof is perpendicular to the rotary table 1. Specifically, the flanging wheel 6 is connected to the mounting seat 4 through an adapter rod 61, and is rotatably arranged at the lower end of the adapter rod 61. The upper end of the adapter rod 61 is detachably fixed to the mounting seat 4. The flanging wheel 6 and the limiting wheel 3 need to be used in cooperation, and therefore need to be mounted or dismounted simultaneously. The rotation shafts of the limiting wheel 3, the rotary table 1 and the flanging wheel 6 are located on the same virtual plane. In other words, when the X axis 51 moves the flanging wheel 62, the rotation shaft of the flanging wheel 6 moves along the virtual plane where the rotation shafts of the limiting wheel 3 and the rotary table 1 are located.

[0050] The working principle of the device will be briefly described in combination with the above device structure as follows:

[0051] Vertical flanging

[0052] 1. When the flanging wheel 6 and the limiting wheel 3 are used to perform vertical flanging on the circular tube, the circular tube is sleeved on the support petals 11, and the flanging wheel 6 is inserted into the circular tube.

[0053] 11. Then the inflation core 2 is inserted into the support petals 11, so that the support petals 11 are opened outward, and the circular tube is fixed by the inner support;

[0054] 2. Then the servo motor 12 drives the rotary table 1 to rotate, thereby driving the circular tube to rotate;

[0055] 3. The XY axis linear module 5 drives the mounting seat 4 to move, so that the flanging wheel 6 mounted thereon is inserted into the circular tube, and the peripheral surface of the flanging wheel 6 abuts against the inner side surface of the edge of the circular tube on the rotary table 1. At this time, the peripheral surface of the limiting wheel 3 abuts against the outer side surface of the circular tube. There is a height difference between the lower end surface of the flanging wheel 6 and the upper end surface of the limiting wheel 3, and the height difference cooperates with the wall thickness of the circular tube.

[0056] 4. The XY axis linear module 5 drives the mounting seat 4 to further translate, so that the flanging wheel 6 moves towards the limiting wheel. At this time, the circular tube is bent by the flanging wheel 6, and the remaining part can be blocked by the peripheral surface of the limiting wheel 3;

[0057] 5、flanging wheel 6 further translation, until the cylinder edge is clamped between the flanging wheel 6 and the limit wheel end face, at this time the cylinder is clamped edge is 90 degrees perpendicular to fold;

[0058] 6, servo motor 12 drives the rotary table 1 rotation, the cylinder edge is repeatedly clamped by the flanging wheel 6 end face and the limit wheel 3 end face until forming.

[0059] Pipe expansion

[0060] 1、when using flanging wheel 6 and limit wheel 3 to expand the pipe, the cylinder is sleeved on the support petals 11, then the expansion core 2 is inserted into the support petals 11, the support petals 11 are opened outward, and the cylinder is fixed by the inner support;

[0061] 2、then servo motor 12 drives the rotary table 1 rotation, and then drives the cylinder rotation;

[0062] 3、XY axis linear module 5 drives the mounting seat 4 to move, so that the flanging wheel 6 on the mounting seat 4 is inserted into the cylinder, and the peripheral surface of the flanging wheel 6 abuts against the inner side surface of the cylinder edge on the rotary table 1. At this time, the peripheral surface of the limit wheel 3 abuts against the outer side surface of the cylinder. The height difference between the lower end surface of the flanging wheel 6 and the upper end surface of the limit wheel 3 cooperates with the thickness of the cylinder wall.

[0063] 4、XY axis linear module 5 drives the mounting seat 4 to further translate, so that the flanging wheel 6 moves towards the limit wheel, at this time:

[0064] the part of the cylinder corresponding to the lower end surface of the flanging wheel 6 is bent and abuts against the upper end surface of the limit wheel 3;

[0065] the part of the cylinder corresponding to the peripheral surface of the flanging wheel 6 is forced to expand outward;

[0066] and the remaining part of the cylinder can be blocked by the peripheral surface of the limit wheel 3;

[0067] 5、servo motor 12 drives the rotary table 1 rotation, the cylinder edge is repeatedly clamped by the flanging wheel 6 end face and the limit wheel 3 end face until forming.

[0068] Compared with the prior art, the utility model has the advantages that:

[0069] the part of the cylinder corresponding to the lower end surface of the flanging wheel 6 is bent and abuts against the upper end surface of the limit wheel 3;

[0070] The above embodiments are used to explain the utility model and the implementation of the utility model in detail, but those skilled in the art can understand that the above embodiments of the utility model are only one of the preferred embodiments of the utility model, and due to the limitation of the length, all the implementation modes cannot be listed one by one, and any implementation mode that can reflect the technical scheme of the utility model claim is within the protection scope of the utility model.

[0071] It should be noted that the above content is a further detailed description of the utility model in combination with specific embodiments, and the specific embodiments of the utility model are not limited to this. 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 are within the protection scope of the utility model.

Claims

1. A cylinder expanding and vertical flanging apparatus, characterized by, The flanging device comprises: A rotary table horizontally rotates under the drive of a rotating mechanism, and is provided with at least three support petals which are rotationally symmetrical around the rotary shaft of the rotary table, gaps are arranged between the support petals, and the support petals can move radially along the rotary table; the support petals are connected with elastic members which make the support petals tend to contract inward; a bulging core which can rotate and is selectively pressed downward to insert into the support petals and make the support petals open outward is further arranged above the rotary table; A limiting wheel is arranged on one side of the rotary table, and the rotary shaft of the limiting wheel is vertically arranged to make the circumferential surface of the cylinder which is expanded by the support petals abut against the circumferential surface of the limiting wheel; A flanging wheel has a columnar circumferential surface and is rotatably arranged on an XY-axis linear module; the rotary shaft of the limiting wheel, the rotary shaft of the rotary table and the rotary shaft of the flanging wheel are located on the same virtual plane; the XY-axis linear module is used to drive the circumferential surface of the flanging wheel to abut against the inner / outer side surface of the edge of the cylinder on the rotary table, and then drive the flanging wheel to move radially outward / inward along the rotary table.

2. A cylinder expanding and vertical flanging apparatus according to claim 1, wherein: The bulging core is rotatably arranged on a Y-axis linear module and is driven by the Y-axis linear module to move up and down along the rotary axis of the rotary disc.

3. A cylinder expanding and vertical flanging apparatus according to claim 2, wherein: The bulging core is roughly inverted in shape and has a conical or circular truncated conical shape.

4. A cylinder expanding and vertical flanging apparatus according to claim 3, wherein: The Y-axis linear module comprises an electric push rod.

5. A cylinder expanding and vertical flanging apparatus as claimed in claim 1, wherein: The X-axis of the XY-axis linear module comprises a horizontal guide rail, a translation table 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 output shaft of the servo motor and the lead screw; the translation table and the nut are fixedly connected.

6. A cylinder expanding and vertical flanging apparatus as claimed in claim 5, wherein: The Y-axis of the XY-axis linear module comprises a vertical guide rail, a lifting table 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 output shaft of the servo motor and the lead screw; the lifting table and the nut are fixedly connected; the servo motor is fixed to the translation table; the flanging wheel is connected to a mounting base through an adapter rod, the flanging wheel is rotatably arranged at the lower end of the adapter rod, the upper end of the adapter rod and the mounting base are detachably fixed, and the mounting base is fixed to the lifting table.

7. A cylinder expanding and vertical flanging apparatus as claimed in claim 1, wherein: Grooves are transversely arranged on the circumferential surface of the support petals, the elastic members are elastic rings, and the elastic rings are sleeved on the circumferential surfaces of the three support petals and embedded in the grooves.

8. A cylinder expanding and vertical flanging apparatus as claimed in claim 7, wherein: The support petals are roughly fan ring-shaped, vertically have long waist holes, three guide columns are vertically arranged on the rotary table, and the support petals are correspondingly sleeved on the guide columns to move radially along the rotary table.

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