CN211276031U - Precision elbow pipe end forming and extruding device - Google Patents
Precision elbow pipe end forming and extruding device Download PDFInfo
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- CN211276031U CN211276031U CN201922051335.7U CN201922051335U CN211276031U CN 211276031 U CN211276031 U CN 211276031U CN 201922051335 U CN201922051335 U CN 201922051335U CN 211276031 U CN211276031 U CN 211276031U
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Abstract
The utility model discloses an accurate return bend pipe end shaping extrusion device: the device comprises a lower die and an upper die, wherein the upper surface of the lower die and the lower surface of the upper die are symmetrically provided with a bent-pipe-shaped semicircular cavity; the upper surface semicircular cavity of the lower die and the lower surface semicircular cavity of the upper die are buckled with each other to form a fixed cavity, forming cavities are arranged at two ends of the fixed cavity, and the inner diameter of each forming cavity is larger than that of the fixed cavity; the bent pipe is matched and clamped in the fixed cavity, and the end of the bent pipe is arranged in the forming cavity; the bending device also comprises a first external expansion punch and a second bending punch, wherein the first external expansion punch and the second bending punch are symmetrically and rotatably arranged; the first external expansion punch is horizontally arranged opposite to the end face of the forming cavity; and the first outer expansion punch and the second bending punch sequentially extend into a forming cavity to punch the end of the bent pipe for forming. The extrusion device arranged in this way has high production efficiency and high dimensional precision for the sealing ring groove at the end of the bent pipe.
Description
Technical Field
The utility model relates to a pipe fitting field of making especially relates to an accurate return bend pipe end shaping extrusion device.
Background
Generally, when the connecting bent pipe is produced, radial raised sealing ring grooves are arranged at two ends of the bent pipe, and sealing rings are placed in the sealing ring grooves for waterproof sealing. Therefore, the production efficiency of the existing processing equipment for the sealing package of the bent pipe is low.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides an accurate elbow pipe end forming extrusion device can solve the problems.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses an accurate return bend pipe end shaping extrusion device: the device comprises a lower die and an upper die, wherein the upper surface of the lower die and the lower surface of the upper die are symmetrically provided with a bent-pipe-shaped semicircular cavity; the upper surface semicircular cavity of the lower die and the lower surface semicircular cavity of the upper die are buckled with each other to form a fixed cavity, forming cavities are arranged at two ends of the fixed cavity, and the inner diameter of each forming cavity is larger than that of the fixed cavity; the bent pipe is matched and clamped in the fixed cavity, and the end of the bent pipe is arranged in the forming cavity; the bending device also comprises a first external expansion punch and a second bending punch, wherein the first external expansion punch and the second bending punch are symmetrically and rotatably arranged; the first external expansion punch is horizontally arranged opposite to the end face of the forming cavity; the first outer expansion punch and the second bending punch sequentially extend into a forming cavity to punch the end of the bent pipe for forming; the extrusion device arranged in this way has high production efficiency and high dimensional precision for the sealing ring groove at the end of the bent pipe.
Further, the outer diameter of the first external expansion punch is larger than the inner diameter of the end of the elbow pipe; the end part of the first outer expansion punch is arranged in a frustum shape, and the minimum outer diameter of the end part of the first outer expansion punch is smaller than the inner diameter of the end part of the bent pipe; and the outer diameter of the second bending punch is matched with the inner diameter of the forming cavity.
Furthermore, the device also comprises a horizontally arranged rotating device, a rotating disc is arranged on a rotating shaft of the rotating device in a transmission manner, a first fixing column and a second fixing column are arranged on the rotating disc, and the first fixing column and the second fixing column are horizontally and symmetrically arranged; the first external expansion punch is fixedly arranged at the top end of the first fixed column, and the second bending punch is fixedly arranged at the top end of the second fixed column; like this through the first outer drift that expands of rotary device quick replacement and the second drift position of bending, also convenient maintenance simultaneously and change first outer drift that expands and the second drift of bending.
Furthermore, the device also comprises a telescopic hydraulic cylinder, wherein the telescopic end of the telescopic hydraulic cylinder is connected with the rotating device through a connecting plate; and the telescopic direction of the telescopic hydraulic cylinder is vertical to the end surface of the forming cavity. The telescopic hydraulic cylinder is convenient to control to provide extrusion force, so that the first outer expansion punch head expands the bent pipe end outwards and the second bending punch head extrudes the bent pipe end.
Furthermore, a sliding groove is formed in the position, below the rotating device, of the extrusion table top, and the length direction of the sliding groove is the same as the telescopic direction of the telescopic hydraulic cylinder; the bottom of the rotating device is fixedly provided with a base, a sliding strip is arranged below the base and is arranged in a sliding groove in a matched mode, and therefore the first outer expansion punch and the second bending punch are punched to play a role in guiding.
Furthermore, the upper die is arranged right above the lower die; the extrusion mesa is gone up to support and is provided with the fixed plate, be provided with flexible post on the fixed plate, the flexible end of flexible post is fixed to be set up at the upper die upper surface to drive the mould and stretch out and draw back the setting along vertical direction directly over the lower mould.
Has the advantages that: the utility model discloses a precise elbow pipe end forming extrusion device, which extrudes and expands a pipe through a first outward expansion punch head at the end part of the elbow pipe end, and radially extrudes an expansion part at the end part of the elbow pipe through a second bending punch head, so that the expansion part is stressed to bulge outwards to form a sealing ring groove; the extrusion device is arranged to improve the production efficiency of the sealing ring groove at the end of the bent pipe.
Drawings
FIG. 1 is a schematic view of the overall structure of the extrusion device of the present invention;
FIG. 2 is a schematic sectional structure view of the extruding apparatus of the present invention;
FIG. 3 is a schematic view of a partial structure of the extruding apparatus of the present invention;
fig. 4 is a schematic diagram of the front and rear extrusion structures of the bent pipe end of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The precise elbow end forming and extruding device shown in the attached figures 1-4 comprises: the device comprises a lower die 11 and an upper die 12, wherein the upper surface of the lower die 11 and the lower surface of the upper die 12 are symmetrically provided with a bent tubular semicircular cavity; the upper surface semicircular cavity of the lower die 11 and the lower surface semicircular cavity of the upper die 12 are buckled with each other to form a fixed cavity 2, forming cavities 3 are arranged at two ends of the fixed cavity 2, the inner diameter of each forming cavity 3 is larger than that of each fixed cavity 2, a groove matched with the sealing ring groove is arranged at the joint of each forming cavity 3 and the corresponding fixed cavity 2, and the groove is not drawn in the drawing; the bent pipe 4 is clamped in the fixed cavity 2 in a matching way, and the pipe end of the bent pipe 4 is arranged in the molding cavity 3; the forming die further comprises a first external expansion punch 5 and a second bending punch 6, wherein the first external expansion punch 5 is horizontally arranged opposite to the end face of the forming cavity 3; the outer diameter of the first external expansion punch 5 is larger than the inner diameter of the pipe end of the bent pipe 4; the end part of the first external expansion punch 5 is arranged in a frustum shape, and the minimum external diameter of the end part of the first external expansion punch 5 is smaller than the internal diameter of the pipe end of the bent pipe 4, so that the first external expansion punch 5 can extend into the pipe end of the bent pipe 4 to perform external expansion on the bent pipe 4; first outer bloated drift 5 and the 6 symmetrical rotation settings of second drift of buckling, change the position of first outer bloated drift 5 and the 6 drift of second drift of buckling at the rotation for the 4 pipe ends of return bend after the second drift of buckling 6 is buckled, the 46 external diameters of second drift of buckling cooperate with the 3 internal diameters of shaping chamber and set up, extrude 4 pipe ends of return bend 4 like this through the 6 drift of second drift of buckling, because the stress intensity of 4 pipe end expansion ends of return bend 4 and the 4 not inflation pipe shafts of return bend is different, and the 4 pipe end expansion ends of its return bend are anti deformation power relatively poor, and 4 pipe end expansion ends of its return bend can radially bulge in 3 recesses of shaping chamber and form sealed annular when the 6 extrusion of second drift of buckling like this. Through like this first outer bloated drift 5 stretches into the 4 pipe ends of punching press return bend shaping in the shaping chamber 3 with second drift 6 of buckling in proper order for the production efficiency of the 4 pipe end seal ring grooves of return bend is high, and production size precision is big.
The device is characterized by further comprising a rotating device 7 which is horizontally arranged, the rotating device 7 is a rotating motor, a rotating disc 70 is arranged on a rotating shaft of the rotating device 7 in a transmission mode, a first fixing column 71 and a second fixing column 72 are arranged on the rotating disc 70, and the first fixing column 71 and the second fixing column 71 are horizontally and symmetrically arranged; first outer inflation drift 5 is fixed to be set up on first fixed column 71 top, second drift 6 that bends is fixed to be set up on second fixed column 72 top, and like this through rotary device 7 quick change first outer inflation drift 5 with the second drift 6 rotational position that bends accurate, also convenient maintenance simultaneously or change first outer inflation drift 5 and the second drift 6 that bends.
The device also comprises a telescopic hydraulic cylinder 8, wherein the telescopic end of the telescopic hydraulic cylinder 8 is connected with the rotating device 8 through a connecting plate 80; the telescopic direction of the telescopic hydraulic cylinder 8 is vertical to the end surface of the molding cavity 3; so be convenient for control flexible pneumatic cylinder 8 provides the extrusion force and make first outer bloated drift 5 expand outward 4 pipe ends of return bend and the second drift 6 that bends extrudees 4 pipe ends of return bend. A sliding groove 90 is arranged at the extrusion table top 9 below the rotating device 7, and the length direction of the sliding groove 90 is the same as the telescopic direction of the telescopic hydraulic cylinder 8; the bottom of the rotating device 7 is fixedly provided with a base 73, a sliding strip 731 is arranged below the base 73, and the sliding strip 731 is arranged in the sliding groove 90 in a matching manner, so that the rotating device 7 and the first external expansion punch 5 and the second bending punch 6 thereon perform guiding movement.
The upper die 12 is arranged right above the lower die 11; a fixed plate 10 is supported on the extrusion table top 9, a telescopic column 101 is arranged on the fixed plate 10, the telescopic end of the telescopic column 101 is fixedly arranged on the upper surface of the upper die 12, and the upper die 12 is driven to be arranged above the lower die 11 in a telescopic manner along the vertical direction; this facilitates the placement or removal of the elbow.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a precision bend pipe end shaping extrusion device which characterized in that: the device comprises a lower die (11) and an upper die (12), wherein the upper surface of the lower die (11) and the lower surface of the upper die (12) are symmetrically provided with a bent-tube-shaped semicircular cavity; the upper surface semicircular cavity of the lower die (11) and the lower surface semicircular cavity of the upper die (12) are buckled with each other to form a fixed cavity (2), forming cavities (3) are arranged at two ends of the fixed cavity (2), and the inner diameter of each forming cavity (3) is larger than that of the fixed cavity (2); the bent pipe (4) is clamped in the fixed cavity (2) in a matching way, and the pipe end of the bent pipe (4) is arranged in the molding cavity (3); the bending machine further comprises a first external expansion punch head (5) and a second bending punch head (6), wherein the first external expansion punch head (5) and the second bending punch head (6) are symmetrically and rotatably arranged; the first external expansion punch (5) is arranged right opposite to the end face of the forming cavity (3) along the horizontal direction; the first outer expansion punch (5) and the second bending punch (6) sequentially extend into the forming cavity (3) to punch the pipe end of the bent pipe (4) for forming.
2. The precision elbow pipe end forming and extruding device according to claim 1, wherein: the outer diameter of the first external expansion punch (5) is larger than the inner diameter of the pipe end of the bent pipe (4); the end part of the first external expansion punch (5) is arranged in a frustum shape, and the minimum external diameter of the end part of the first external expansion punch (5) is smaller than the internal diameter of the pipe end of the bent pipe (4); the outer diameter of the second bending punch (6) is matched with the inner diameter of the forming cavity (3).
3. The precision elbow pipe end forming and extruding device according to claim 2, wherein: the device is characterized by further comprising a rotating device (7) which is horizontally arranged, a rotating disc (70) is arranged on a rotating shaft of the rotating device (7) in a transmission mode, a first fixing column (71) and a second fixing column (72) are arranged on the rotating disc (70), and the first fixing column (71) and the second fixing column (72) are horizontally and symmetrically arranged; the first outer expansion punch (5) is fixedly arranged at the top end of the first fixing column (71), and the second bending punch (6) is fixedly arranged at the top end of the second fixing column (72).
4. The precision elbow pipe end forming and extruding device according to claim 3, wherein: the device also comprises a telescopic hydraulic cylinder (8), wherein the telescopic end of the telescopic hydraulic cylinder (8) is connected with the rotating device (7) through a connecting plate (80); and the telescopic direction of the telescopic hydraulic cylinder (8) is vertical to the end surface of the molding cavity (3).
5. The precision elbow pipe end forming and extruding device according to claim 4, wherein: a sliding groove (90) is formed in the position of the extrusion table top (9) below the rotating device (7), and the length direction of the sliding groove (90) is the same as the telescopic direction of the telescopic hydraulic cylinder (8); the bottom of the rotating device (7) is fixedly provided with a base (73), a sliding strip (731) is arranged below the base (73), and the sliding strip (731) is arranged in the sliding groove (90) in a matching mode.
6. The precision elbow pipe end forming and extruding device according to claim 5, wherein: the upper die (12) is arranged right above the lower die (11); the extrusion mesa (9) is gone up the support and is provided with fixed plate (10), be provided with flexible post (101) on fixed plate (10), the flexible end of flexible post (101) is fixed to be set up and is gone up mould (12) upper surface to drive and go up mould (12) and follow vertical direction flexible setting directly over lower mould (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922051335.7U CN211276031U (en) | 2019-11-25 | 2019-11-25 | Precision elbow pipe end forming and extruding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922051335.7U CN211276031U (en) | 2019-11-25 | 2019-11-25 | Precision elbow pipe end forming and extruding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211276031U true CN211276031U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922051335.7U Active CN211276031U (en) | 2019-11-25 | 2019-11-25 | Precision elbow pipe end forming and extruding device |
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| CN (1) | CN211276031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441600A (en) * | 2021-07-20 | 2021-09-28 | 佛山市永恒液压机械有限公司 | Efficient elbow forming device and method |
| CN115194036A (en) * | 2022-09-11 | 2022-10-18 | 苏州荣纳自动化科技有限公司 | Double-end hydraulic pipe end forming machine with temperature regulation and control function |
-
2019
- 2019-11-25 CN CN201922051335.7U patent/CN211276031U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441600A (en) * | 2021-07-20 | 2021-09-28 | 佛山市永恒液压机械有限公司 | Efficient elbow forming device and method |
| CN113441600B (en) * | 2021-07-20 | 2022-03-18 | 佛山市永恒液压机械有限公司 | Efficient elbow forming device and method |
| CN115194036A (en) * | 2022-09-11 | 2022-10-18 | 苏州荣纳自动化科技有限公司 | Double-end hydraulic pipe end forming machine with temperature regulation and control function |
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