Pipe bending equipment and clamping die flange pipe supporting mechanism thereof

Abstract

The invention discloses pipe bending equipment and a clamping die flange pipe supporting mechanism thereof. The pipe bending equipment comprises a pipe bending arm, a wheel die and a clamping die. The wheel die is fixed to the pipe bending arm, and the clamping die is installed on the pipe bending arm in a sliding mode. A first profiled groove is formed in the peripheral face of the wheel die, an insert is fixed to the wheel die, a first clamping groove is formed in the side face of the insert, the first clamping groove and the first profiled groove are matched and communicated with each other, a retainer plate is fixed to the insert and located below the first clamping groove, a second clamping groove is formed in the clamping die, and the first clamping groove and the second clamping groove are oppositely arranged. The guide pipe extends between the insert and the clamping die, the material supporting plate supports the front end of the guide pipe, and the clamping die moves towards the insert to clamp the guide pipe through the first clamping groove and the second clamping groove. No matter whether the length of the front end of the guide pipe or whether the front end of the guide pipe is welded with a flange, the retainer plate can support the front end of the guide pipe, the front end of the guide pipe cannot droop, and the situation that the guide pipe and the clamping groove are misplaced and a pipe fitting is damaged due to droop of the front end of the guide pipe in the process of clamping the guide pipe by the insert and the clamping die is prevented.

Description

Technical Field

[0001] The present invention relates to the field of pipe bending equipment, and in particular to a pipe bending equipment and a clamping die flange pipe supporting mechanism thereof. Background Art

[0002] There are many metal conduits designed on equipment such as high-speed trains and ships, which are used to transport various fluids and support various tasks of equipment operation, and are extremely important parts of these equipments.

[0003] In the existing flange first-welded and then-bent pipe fittings, the already-bent part at the front end of the wheel die is heavy, and it will sag during the bending corner process of the next bend, resulting in clamping damage to the pipe fittings when the clamping die clamps, and the pipe supporting mechanism at the front end of the machine is far away from the wheel die, and sometimes it cannot play the role of supporting the pipe.

[0004] As disclosed in the prior art with the publication number CN110180926A, a high-precision pipe bender includes a workbench, a material clamping unit, a feeding unit and a pipe bending unit. The material clamping unit is fixed on the feeding unit, and the pipe is fed into the pipe bending unit through the feeding unit. The pipe bending unit includes a fixed frame, a wheel die, a pipe bending motor, a pipe bending arm and a clamping part. The fixed frame is connected to the feeding unit. The pipe bending arm and the wheel die are connected to the pipe bending motor and can rotate driven by the pipe bending motor. The pipe enters the pipe receiving groove of the wheel die after passing through the feeding unit. The clamping part includes a clamping cylinder, a clamping part connecting plate and a clamping die. The clamping die is fixed on the clamping part connecting plate. The clamping die and the wheel die cooperate with each other to fix the pipe, and the clamping die can rotate with the pipe bending arm to bend the pipe.

[0005] In the prior art, since the front end of the conduit is welded with a flange in advance, the problem of sagging due to its own weight during the pipe bending process of the conduit welded with a flange causes the clamping die to clamp and damage the pipe fitting due to the misalignment of the sagging arc groove. Summary of the Invention

[0006] In order to solve the problem in the prior art that due to the large weight at the front end of the conduit, the front end of the conduit sags, resulting in misalignment between the clamping die and the conduit and clamping damage to the conduit, the purpose of the present invention is to provide a pipe bending equipment and a clamping die flange pipe supporting mechanism thereof, which can effectively ensure the effectiveness of the positions among the conduit, the clamping die and the wheel die, and can effectively avoid clamping damage to the conduit when the pipe bending equipment clamps the conduit.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A clamping die flange pipe supporting mechanism includes a bending pipe arm, a wheel die and a clamping die; the wheel die is fixed on the bending pipe arm, and the clamping die is slidably installed on the bending pipe arm; a first groove is provided on the outer peripheral surface of the wheel die, an insert block is fixed on the wheel die, a first clamping groove is provided on the side surface of the insert block, the first clamping groove and the first groove are matched and communicate with each other, a supporting plate is fixed on the insert block, the supporting plate is located below the first clamping groove, a second clamping groove is provided on the clamping die, and the first clamping groove and the second clamping groove are arranged facing each other; the conduit extends between the insert block and the clamping die, the supporting plate holds the front end of the conduit, and the clamping die moves towards the insert block to clamp the conduit through the first clamping groove and the second clamping groove.

[0008] Preferably, the first clamping groove and the second clamping groove are linear, and the first groove is curved.

[0009] Preferably, the outer peripheral surface of the wheel die includes a curved portion, the first groove is provided on the curved portion of the wheel die, an embedding groove is provided on the curved portion of the wheel die, the insert block is fixed in the embedding groove, and the first groove and the first clamping groove are matched with each other.

[0010] Preferably, a first hole is provided on the insert block, a second hole is provided on the embedding groove, and a first fastener passes through the first hole and the second hole to fixedly connect the insert block and the wheel die.

[0011] Preferably, a plurality of first holes are respectively provided on the upper and lower sides of the first clamping groove; a plurality of second holes and a plurality of first holes are arranged in one-to-one correspondence.

[0012] Preferably, a clamping groove is provided at the bottom of the insert block, the supporting plate includes a connecting portion and a supporting portion, the connecting portion is inserted into the clamping groove and fixedly connected through a second fastener, and the supporting portion extends out of the clamping groove for supporting the conduit.

[0013] Preferably, a third hole is provided in the clamping groove of the insert block, a fourth hole is provided on the supporting plate, and the second fastener fixes the supporting plate on the insert block through the fourth hole and the third hole.

[0014] Preferably, a plurality of balls are provided on the supporting plate, and the supporting plate supports the conduit through the balls.

[0015] Preferably, the apex of the ball is flush with the bottom of the first clamping groove.

[0016] A pipe bending device includes the above clamping die flange pipe supporting mechanism.

[0017] The beneficial effect of the technical solution of the present invention is as follows: No matter the length of the front end of the conduit or whether a flange is welded to the front end of the conduit, the supporting plate can support the front end of the conduit, and the front end of the conduit will not sag, so that the conduit is always kept between the first clamping groove and the second clamping groove, preventing the conduit from being misaligned with the clamping groove and scratching the pipe fittings due to the sag of the front end of the conduit during the process of clamping the conduit by the insert block and the clamping die; Moreover, the quick replacement of the stock supporting plate can be realized through the insert block. By replacing insert blocks of different specifications, the relative positions of the first clamping groove and the first shaping groove can be adjusted, and the length of the first clamping groove can also be adjusted, so as to be suitable for machining conduits of various shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the clamping die flange pipe stock supporting mechanism; Figure 2 is a schematic connection structural view of the wheel die, the insert block and the stock supporting plate; Figure 3 is a schematic structural view of the wheel die; Figure 4 is a schematic structural view of the insert block; Figure 5 is a schematic structural view of the stock supporting plate.

[0019] Reference numerals: 41, wheel die; 412, first shaping groove; 413, embedding groove; 414, second hole; 42, clamping die; 43, stock supporting plate; 431, ball; 432, fourth hole; 44, insert block; 441, first clamping groove; 442, clamping groove; 443, first hole; 45, conduit; 46, guiding die. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0023] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0025] As Figures 1 to 5 shown, a clamping die flange pipe supporting mechanism includes a bent pipe arm, a wheel die 41 and a clamping die 42; the wheel die 41 is fixed on the bent pipe arm, and the clamping die 42 is slidably installed on the bent pipe arm; An arc-shaped first mold groove 412 is arranged on the outer peripheral surface of the wheel die 41. An insert block 44 is fixed on the wheel die 41. An arc-shaped first clamping groove 441 is arranged on the side surface of the insert block 44. The first clamping groove 441 and the first mold groove 412 are matched and communicated with each other. A supporting plate 43 is fixed on the insert block 44. The supporting plate 43 is located below the first clamping groove 441. An arc-shaped second clamping groove is arranged on the clamping die 42. The first clamping groove 441 and the second clamping groove are arranged facing each other; A conduit 45 extends between the insert block 44 and the clamping die 42. The supporting plate 43 supports the front end of the conduit 45. The clamping die 42 moves towards the insert block 44 to clamp the conduit 45 through the first clamping groove 441 and the second clamping groove.

[0026] With such an arrangement, no matter the length of the front end of the conduit 45 or whether a flange is welded to the front end of the conduit 45, the supporting plate 43 can support the front end of the conduit 45, and the front end of the conduit 45 will not sag, so that the conduit 45 is always kept between the first clamping groove 441 and the second clamping groove, preventing the conduit 45 from being misaligned with the clamping groove and injuring the pipe fitting due to the sag of the front end of the conduit 45 during the process of clamping the conduit 45 by the insert block 44 and the clamping die 42; Moreover, the quick replacement of the material supporting plate 43 can be achieved through the insert block 44. By replacing insert blocks 44 of different specifications, the relative positions of the first clamping groove 441 and the first groove 412 can also be adjusted, and the length of the first clamping groove 441 can also be adjusted, so as to be suitable for processing conduits 45 of various shapes.

[0027] In this embodiment, as Figure 2 shown, the first clamping groove 441 and the second clamping groove are linear, and the first groove 412 is curved. With such a setting, the stability of the clamping of the conduit 45 can be ensured.

[0028] Further preferably, as Figures 2 to 4 shown, the outer peripheral surface of the wheel die 41 includes a curved part, the first groove 412 is arranged on the curved part of the wheel die 41, an embedding groove 413 is arranged on the curved part of the wheel die 41, the first groove 412 is communicated with the embedding groove 413, the insert block 44 is fixed in the embedding groove 413, and the first groove 412 is matched with the first clamping groove 441. With such a setting, the wheel die 41 can be matched with more specifications of insert blocks 44.

[0029] Further preferably, a first hole 443 is arranged on the insert block 44, a second hole 414 is arranged on the embedding groove 413, and a first fastener passes through the first hole 443 and the second hole 414 to fixedly connect the insert block 44 and the wheel die 41. Further, a plurality of first holes 443 are respectively arranged on the upper and lower sides of the first clamping groove 441; a plurality of second holes 414 are arranged corresponding to the plurality of first holes 443 one by one.

[0030] In this embodiment, as Figure 2 、 Figure 4 and Figure 5 shown, a clamping groove 442 is arranged at the bottom of the insert block 44. The material supporting plate 43 includes a connecting part and a supporting part. The connecting part is inserted into the clamping groove 442 and fixedly connected through a second fastener, and the supporting part extends out of the clamping groove 442 for supporting the conduit 45. With such a setting, the quick positioning of the material supporting plate 43 and the insert block 44 can be achieved.

[0031] Further preferably, a third hole is arranged in the clamping groove 442 of the insert block 44, a fourth hole 432 is arranged on the material supporting plate 43, and the second fastener fixes the material supporting plate 43 on the insert block 44 through the fourth hole 432 and the third hole.

[0032] In this embodiment, both the first fastener and the second fastener are bolts; at least the second hole 414 and the third hole among the first hole 443, the second hole 414, the third hole and the fourth hole 432 are threaded holes.

[0033] In this embodiment, a plurality of balls 431 are arranged on the supporting portion of the material supporting plate 43, and the material supporting plate 43 supports the conduit 45 through the balls 431. With such an arrangement, the support by the balls 431 can effectively avoid the friction between the outer wall of the conduit 45 and the material supporting plate 43, thereby preventing the conduit 45 from being scratched and ensuring the yield rate of the bent pipe finished product.

[0034] Further preferably, the apex of the ball 431 is flush with the bottom of the first clamping groove 441. With such an arrangement, the relative positions of the insert 44, the clamping die 42, and the conduit 45 can be ensured, and the conduit 45 can be directly prevented from being clamped and damaged by the clamping die 42 and the insert 44.

[0035] In this embodiment, a cylinder is installed on the bending pipe arm, and the clamping die 42 is installed on the telescopic end of the cylinder; the cylinder can drive the clamping die 42 to approach or move away from the insert 44.

[0036] A bending pipe device includes the above-mentioned clamping die flange pipe material supporting mechanism, and also includes a workbench and a guide die base. The bending pipe arm is rotatably installed on the workbench, the guide die base is installed on the workbench, and the bending pipe arm rotates around the axis of the curved portion of the wheel die 41; a guide die 46 is installed on the guide die base, a second groove is provided on the guide die 46, the first groove 412 and the second groove are arranged opposite to each other, and the conduit 45 passes between the first groove 412 and the second groove. The bending pipe device further includes a feeding unit installed on the workbench and used for conveying the conduit 45. The feeding unit can clamp the conduit 45 and drive the conduit 45 to move.

[0037] In this embodiment, the specific structure of the feeding unit can refer to the prior art such as the existing technologies with the publication numbers CN110180926A, CN113617900A, and CN113617955A.

[0038] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and purposes of the present invention.

Claims

1. A clamping die flange pipe supporting mechanism, characterized in that: It comprises a pipe bending arm, a wheel die (41) and a clamping die (42); the wheel die (41) is fixed on the pipe bending arm, and the clamping die (42) is slidably mounted on the pipe bending arm; A first groove (412) is provided on the outer circumferential surface of the wheel mold (41); an insert (44) is fixed on the wheel mold (41); a first clamping groove (441) is provided on the side surface of the insert (44); the first clamping groove (441) and the first groove (412) are communicated with each other; a supporting plate (43) is fixed on the insert (44); the supporting plate (43) is located below the first clamping groove (441); a second clamping groove is provided on the clamping mold (42); the first clamping groove (441) and the second clamping groove are arranged opposite to each other; The conduit (45) extends between the insert (44) and the clamping die (42), the support plate (43) holds the front end of the conduit (45), and the clamping die (42) can move toward the insert (44) through the first clamping groove (441) and the second clamping groove to clamp the conduit (45).

2. A clamping die flange pipe supporting mechanism according to claim 1, characterized in that: The first clamping groove (441) and the second clamping groove are in a straight line shape, and the first groove (412) is in a curved line shape.

3. A clamping die flange pipe supporting mechanism according to claim 1, characterized in that: The wheel mold (41) is provided with an embedding groove (413), the first groove (412) is connected to the embedding groove (413), the insert (44) is fixed in the embedding groove (413), and the first groove (412) is connected to the first clamping groove (441).

4. A clamping die flange pipe supporting mechanism according to claim 3, characterized in that: The insert (44) is provided with a first hole (443), the embedding groove (413) is provided with a second hole (414), and a first fastener is used to pass through the first hole (443) and the second hole (414) to fix the insert (44) and the wheel mold (41) together.

5. A clamping die flange pipe supporting mechanism according to claim 4, characterized in that: The plurality of first holes (443) are respectively arranged on the upper and lower sides of the first clamping groove (441); the plurality of second holes (414) and the plurality of first holes (443) are arranged in a one-to-one correspondence.

6. The clamping die flange pipe supporting mechanism according to claim 1, characterized in that: A slot (442) is provided at the bottom of the insert (44), and the support plate (43) comprises a connecting portion and a supporting portion, the connecting portion is inserted into the slot (442) and fixedly connected via a second fastener, and the supporting portion extends from the slot (442) to support the conduit (45).

7. The clamping die flange pipe supporting mechanism according to claim 1, characterized in that: A third hole is provided in the slot (442) of the insert (44), a fourth hole (432) is provided on the support plate (43), and the second fastener fixes the support plate (43) to the insert (44) via the fourth hole (432) and the third hole.

8. The clamping die flange pipe supporting mechanism according to claim 1, characterized in that: A plurality of balls (431) are arranged on the supporting plate (43), and the supporting plate (43) supports the conduit (45) via the balls (431).

9. A clamping die flange pipe supporting mechanism according to claim 8, characterized in that: The top point of the rolling ball (431) is flush with the bottom of the first clamping groove (441).

10. A pipe bending device, characterized in that: A clamping flange pipe supporting mechanism comprising any one of claims 1-9.

Images