Multi-station pipe bending device

Abstract

The utility model discloses a multi-station pipe bending device, and particularly relates to the technical field of pipe fitting machining. The multi-station pipe bending device corresponds to a discharging position of pipe fitting production equipment and comprises a machine plate, a conveying mold, a fixing mold and a pipe bending mold are sequentially arranged on the front surface of the machine plate from right to left, the conveying mold and the fixing mold are rotationally connected to the machine plate through a first rotating shaft, and the pipe bending mold is fixedly connected to the machine plate through a second rotating shaft. A belt pulley mechanism is arranged on the first rotating shafts, a pipe fitting fixing structure is arranged on the front surface of the machine plate, the pipe fitting fixing structure corresponds to the position above the fixing mold, and a discharging assembly used for lifting pipe fitting discharging is fixedly connected to the pipe fitting fixing structure. The automatic pipe bending device solves the technical problems that manual participation is needed for feeding and discharging when a lower pipe bending device is used for machining a bent pipe, meanwhile, the control precision of manual pipe bending is low, the machining process is time-consuming, and defects exist in semi-automatic pipe bending machining.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing, and more specifically, to a multi-station pipe bending device. Background Art

[0002] The elbow is usually connected to the pipeline and is mainly used to change the direction of the pipeline. As one of the pipeline accessories, the elbow has frequently appeared in people's vision and has been widely used in oil transportation, natural gas transportation, liquid transportation and engineering bridge construction. At present, the structure of the elbow is often shaped by the bending device.

[0003] Patent No. CN 211965488 U discloses a multi-station pipe bending device. An elbow assembly is provided on the top of the frame, and a rotary drive mechanism is provided at the bottom thereof. The elbow assembly includes a rotary clamp, a rotating frame and a first pressing mechanism. A pipe bending groove is provided on the outer side of the rotary clamp, a fixed clamp is provided on one side of the elbow assembly, and a positioning groove is provided on one side of the fixed clamp. A telescopic member is provided on the rotating frame. A convex block is provided on the top of the rotary clamp. The rotary clamp encloses the arc portion and the straight portion. The steel pipe is positioned by the positioning groove and the pipe bending groove. After the steel pipe is fixed to the rotary clamp by the first pressing mechanism, the rotary drive mechanism drives the elbow assembly to bend the steel pipe. Multiple steel pipes can be bent at the same time, which is more efficient. The rotary clamp is fixed by tightening the convex block by the telescopic member, which is more stable during processing. The convex block is loosened by the telescopic member to make the rotary clamp movable, which is convenient for removing the steel pipe. The L-shaped clamp is clamped on the edge, and the steel pipe is pressed to the positioning groove by the second pressing mechanism to prevent the steel pipe from shifting.

[0004] In the above patent, the inventor believes that when the patent is used, manual participation is required in the loading and unloading of pipe fittings when they are made into bent pipes. At the same time, the control accuracy of manual bending is low (that is, the control accuracy of the pipe length between the pipe end and the bending position is insufficient), the processing process is relatively time-consuming, and there are deficiencies in the semi-automatic bending processing. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a multi-station pipe bending device. The technical problem to be solved by the utility model is that manual participation is required for both loading and unloading of the lower pipe bending device during pipe bending, and at the same time, the control accuracy of manual pipe bending is low, the processing process is relatively time-consuming, and there are technical problems in the processing of semi-automatic pipe bending.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-station pipe bending device, which corresponds to the discharge position of the pipe production equipment, includes a machine plate, the front surface of the machine plate is provided with a transmission mold, a fixed mold and a pipe bending mold from right to left in sequence, the transmission mold and the fixed mold are both rotatably connected to the machine plate through a first rotating shaft, the pipe bending mold is fixedly connected to the machine plate through a second rotating shaft, a plurality of first rotating shafts are provided with pulley mechanisms, a pipe fixing structure is provided on the front surface of the machine plate, the pipe fixing structure corresponds to the upper position of the fixed mold, a discharge assembly for lifting the pipe unloading is fixedly connected to the pipe fixing structure, a rotating unit is provided on the second rotating shaft, a pipe bending structure for bending the pipe on the pipe bending mold is provided on the rotating unit, a third hydraulic rod is provided on the pipe bending structure, a distance limiting plate is provided on the third hydraulic rod, the distance limiting plate is fixedly connected to the power output end of the third hydraulic rod, and the distance limiting plate is used to limit the position of the pipe end.

[0007] In a preferred embodiment, at least three tube grooves are provided on the transfer mold, the fixed mold and the tube bending mold.

[0008] In a preferred embodiment, the front surface of the machine plate is fixedly connected to a support plate, and the pipe fixing structure includes a first hydraulic rod fixedly connected to the bottom of the support plate and a fixing clamp fixedly connected to the power output end of the first hydraulic rod; the fixing clamp corresponds to the upper position of the fixed mold, and the fixing clamp is provided with a fixing groove adapted to the pipe groove.

[0009] In a preferred embodiment, the unloading assembly includes a connecting rod fixedly connected to the end side of the fixing fixture and a unloading triangle block fixedly connected to the connecting rod; the unloading triangle block is arranged between the fixed mold and the bending mold, and the unloading triangle block is used to lift the pipe for unloading.

[0010] In a preferred embodiment, the rotating unit includes a rotating plate rotatably connected to the second rotating shaft, a first gear fixedly connected to the end side of the rotating plate, a second gear meshingly connected to the first gear, and a motor output shaft fixedly connected to the second gear; the motor output shaft is rotatably connected to the machine plate.

[0011] In a preferred embodiment, the pipe bending structure includes a second hydraulic rod fixedly connected to the inner side of the rotating plate and a pipe bending clamp fixedly connected to the power output end of the second hydraulic rod; the pipe bending clamp is provided with a bending groove adapted to the pipe groove.

[0012] In a preferred embodiment, the third hydraulic rod is fixedly connected to a side position of the rotating plate.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model imparts rotational force to the transmission mold and the fixed mold through a belt mechanism, and places the entire corresponding material discharge position of the pipe production, so that the pipe can be transferred and loaded by the rotating transmission mold and the fixed mold, so that the pipe can be transferred and shifted to the pipe bending mold for the pipe bending processing, thereby meeting the semi-automatic loading process of the pipe bending processing and achieving the effect of improving the efficiency of the pipe bending processing.

[0015] 2. The utility model sets a discharging component, which is based on the lifting drive of the pipe fixing structure. When the return pressure is released after the pipe fixing structure is pressed to fix the pipe, the triangular inclined surface of the discharging triangle block can lift the pipe bending structure and make the pipe bending structure roll and slide on the inclined surface to discharge the material. In this way, the rapid discharge of the pipe bending structure can be met, and there is no need for manual participation in the discharge and removal of the pipe bending, which can improve the processing efficiency of making the pipe bending.

[0016] 3. The utility model sets a distance limit plate on the rotating unit. When the rotating unit does not drive the pipe bending structure to be in the pipe, the distance limit plate can limit the pipe processing position, that is, the end position of the pipe, so as to ensure the accuracy of the pipe bending position. At the same time, because the distance limit plate is set on the third hydraulic rod, the distance limit plate can be adjustable in distance, thereby meeting the applicable range of the pipe bending position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 For the utility model Figure 1 Rear view without the motherboard.

[0019] Figure 3 It is a structural schematic diagram of the pipe fixing structure and the unloading assembly of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the rotating unit and the pipe bending structure of the utility model.

[0021] The reference numerals are: 1, machine plate; 2, transmission mold; 3, fixed mold; 4, pipe bending mold; 5, first rotating shaft; 6, second rotating shaft; 7, pulley mechanism;

[0022] 8. Pipe fitting fixing structure; 81. First hydraulic rod; 82. Fixing fixture; 9. Discharging assembly; 91. Connecting rod; 92. Discharging triangle block;

[0023] 10. Rotating unit; 101. Rotating plate; 102. First gear; 103. Second gear; 104. Motor output shaft; 11. Pipe bending structure; 111. Second hydraulic rod; 112. Pipe bending fixture; 12. Distance limiting plate;

[0024] 13. Pipe trough; 14. Support plate; 15. Third hydraulic rod. DETAILED DESCRIPTION

[0025] Combined with reference Figure 1-Figure 2 The utility model provides a multi-station pipe bending device, which corresponds to the discharge position of the pipe fitting production equipment; when the pipe fittings that need to be bent are produced by the pipe fitting production equipment, that is, after being produced from the discharge position, the produced pipe fittings can be sent to the multi-station pipe bending device for bending processing. The pipe fitting production equipment in this application is not shown in the figure; it includes a machine plate 1, and the front surface of the machine plate 1 is sequentially provided with a transmission mold 2, a fixed mold 3 and a pipe bending mold 4 from right to left. The transmission mold 2 can be used to transmit the pipe fittings for movement, and the fixed mold 3 can also be used to transmit the pipe fittings for movement. At the same time, the fixed mold 3 can be used as a support for fixing the pipe fittings during the pipe bending processing. Use of fixed parts; the transmission mold 2 and the fixed mold 3 are both rotatably connected to the machine plate 1 through the first rotating shaft 5, the bending mold 4 is fixedly connected to the machine plate 1 through the second rotating shaft 6, and a plurality of first rotating shafts 5 are provided with pulley mechanisms 7; in the present application, the pulley mechanism 7 can be driven by an external motor, that is, the output end of the external motor is fixedly connected to any pulley, so that the transmission mold 2 and the fixed mold 3 can be rotated under the transmission of the pulley mechanism 7 to drive the pipe to move to the bending mold 4 for bending processing, so that the pipe bending processing can have a semi-automatic loading process, thereby achieving the effect of improving the efficiency of the bending processing.

[0026] At least three pipe grooves 13 are arranged on the transmission mold 2, the fixed mold 3 and the pipe bending mold 4; the design of the number of pipe grooves 13 can meet the processing requirements of multiple stations of pipe bending. The pipe grooves 13 on the transmission mold 2 and the fixed mold 3 can be used for limited movement of pipe fittings, while the pipe grooves 13 on the pipe fixed mold 3 can be used for fixing pipe fittings, and the pipe grooves 13 on the pipe bending mold 4 can be used for shaping the pipe bending.

[0027] Combined with reference Figure 3 A pipe fixing structure 8 is provided on the front surface of the machine plate 1, and the pipe fixing structure 8 corresponds to the upper position of the fixed mold 3; a support plate 14 is fixedly connected to the front surface of the machine plate 1, and the pipe fixing structure 8 includes a first hydraulic rod 81 fixedly connected to the bottom of the support plate 14 and a fixing clamp 82 fixedly connected to the power output end of the first hydraulic rod 81; the fixing clamp 82 corresponds to the upper position of the fixed mold 3, and a fixing groove matched with the pipe groove 13 is provided on the fixing clamp 82.

[0028] Specifically, when the pipe fitting is moved onto the fixed mold 3 and the bending mold 4, the first hydraulic rod 81 can be controlled to drive the fixing clamp 82 to move downward until the fixing groove on the fixing clamp 82 corresponds to the pipe fitting, until the pipe fitting is set in the fixing groove and the pipe groove 13 to fix the pipe fitting, thereby ensuring the stability of the pipe bending processing.

[0029] A discharge assembly 9 for lifting the pipe for unloading is fixedly connected to the pipe fixing structure 8, and the discharge assembly 9 includes a connecting rod 91 fixedly connected to the end side of the fixing clamp 82 and a discharge triangle block 92 fixedly connected to the connecting rod 91; the discharge triangle block 92 is arranged between the fixed mold 3 and the bending mold 4, and the discharge triangle block 92 is used to lift the pipe for unloading.

[0030] Specifically, when the pipe fitting is made into a bent pipe, the first hydraulic rod 81 can drive the fixing fixture 82 to move upward, and at the same time, the first hydraulic rod 81 increases the return distance, so that the upward movement of the fixing fixture 82 can drive the unloading triangle block 92 to move upward through the connecting rod 91, until the unloading triangle block 92 contacts the pipe fitting that has been processed by the bent pipe, until the pipe fitting can be lifted upward, until the pipe fitting is separated from the fixed mold 3, the inclined surface provided by the unloading triangle block 92 that continues to move can provide a sliding surface for the pipe fitting, so that the pipe fitting can be unloaded to a position away from the multi-station bending device, without manual participation in the unloading and removal of the bent pipe, which can improve the processing efficiency of making the bent pipe.

[0031] It is worth noting that after the pipe fittings are ejected by the unloading triangle block 92, the unloading position of the pipe fittings can be received and collected by a collecting device so as to transport the bent pipes.

[0032] Combined with reference Figure 4 A rotating unit 10 is provided on the second rotating shaft 6, and a pipe bending structure 11 for bending the pipe on the pipe bending mold 4 is provided on the rotating unit 10. The rotating unit 10 includes a rotating plate 101 rotatably connected to the second rotating shaft 6, a first gear 102 fixedly connected to the end side of the rotating plate 101, a second gear 103 meshingly connected to the first gear 102 and a motor output shaft 104 fixedly connected to the second gear 103; the motor output shaft 104 is rotatably connected to the machine plate 1.

[0033] The pipe bending structure 11 includes a second hydraulic rod 111 fixedly connected to the inner side of the rotating plate 101 and a pipe bending clamp 112 fixedly connected to the power output end of the second hydraulic rod 111; the pipe bending clamp 112 is provided with a bending groove adapted to the pipe groove 13; when the pipe bending clamp 112 drives the bending groove to rotate around the axis of the pipe bending mold 4, the pipe fitting arranged in the pipe groove 13 on the pipe bending mold 4 can be bent and shaped.

[0034] Specifically, when the pipe fitting is shifted to the pipe bending mold 4 through the transmission mold 2 and the fixed mold 3, and the pipe fitting fixing structure 8 cooperates with the fixed mold 3 to partially fix the pipe fitting, the second hydraulic rod 111 can be controlled to move the pipe bending clamp 112 downward until the pipe fitting corresponds to the bending groove and the pipe groove 13 on the pipe bending clamp 112. The second gear 103 can be driven to rotate by an external motor through the motor output shaft 104. The second gear 103 engages with the first gear 102 to drive the rotating plate 101 to rotate around the second rotating shaft 6. At this time, the pipe bending clamp 112 can rotate around the axis of the pipe bending mold 4 until the pipe fitting is pressurized and deformed to change the structural shape. In this way, a bent pipe structure can be made. After the processing of the bent pipe structure is completed, the rotating unit 10 and the pipe fitting bending structure 11 are reset, which makes it convenient for the bent pipe to be unloaded through the unloading component 9.

[0035] A third hydraulic rod 15 is provided on the pipe bending structure 11, and a distance plate 12 is provided on the third hydraulic rod 15. The distance plate 12 is fixedly connected to the power output end of the third hydraulic rod 15, and the distance plate 12 is used to limit the position of the pipe end; the third hydraulic rod 15 is fixedly connected to the side position of the rotating plate 101.

[0036] Specifically, when the pipe fitting is moved onto the pipe bending die 4, the distance limiting plate 12 horizontally arranged on one side of the pipe bending die 4 can limit the end position of the pipe fitting, so that the bending position can be determined when the pipe fitting is bent, thereby ensuring the accuracy of the bending position of the pipe fitting. At the same time, because the distance limiting plate 12 is arranged on the third hydraulic rod 15, the distance limiting plate 12 can have adjustable distance, thereby meeting the applicable range of the bending position of the pipe fitting.

Claims

1. A multi-station pipe bending device, which corresponds to the discharge position of a pipe production equipment, comprises a machine plate (1), characterized in that: The front surface of the machine plate (1) is provided with a transmission mold (2), a fixed mold (3) and a pipe bending mold (4) in sequence from right to left. The transmission mold (2) and the fixed mold (3) are both rotatably connected to the machine plate (1) via a first rotating shaft (5). The pipe bending mold (4) is fixedly connected to the machine plate (1) via a second rotating shaft (6). A plurality of first rotating shafts (5) are provided with pulley mechanisms (7). The front surface of the machine plate (1) is provided with a pipe fixing structure (8). The pipe fixing structure (8) corresponds to a position above the fixed mold (3). The pipe fixing structure (8) is fixedly connected to a discharge assembly (9) for lifting the pipe for unloading, the second rotating shaft (6) is provided with a rotating unit (10), the rotating unit (10) is provided with a pipe bending structure (11) for bending the pipe on the pipe bending mold (4), the pipe bending structure (11) is provided with a third hydraulic rod (15), the third hydraulic rod (15) is provided with a distance limiting plate (12), the distance limiting plate (12) is fixedly connected to the power output end of the third hydraulic rod (15), and the distance limiting plate (12) is used to limit the position of the end of the pipe.

2. A multi-station pipe bending device according to claim 1, characterized in that: The transmission mold (2), the fixed mold (3) and the pipe bending mold (4) are all provided with at least three pipe grooves (13).

3. A multi-station pipe bending device according to claim 1, characterized in that: The front surface of the machine plate (1) is fixedly connected to a support plate (14); the pipe fixing structure (8) comprises a first hydraulic rod (81) fixedly connected to the bottom of the support plate (14) and a fixing fixture (82) fixedly connected to the power output end of the first hydraulic rod (81); the fixing fixture (82) corresponds to a position above the fixed mold (3); and a fixing groove matched with the pipe groove (13) is provided on the fixing fixture (82).

4. A multi-station pipe bending device according to claim 3, characterized in that: The unloading assembly (9) comprises a connecting rod (91) fixedly connected to the end side of the fixing fixture (82) and a unloading triangle block (92) fixedly connected to the connecting rod (91); the unloading triangle block (92) is arranged between the fixing mold (3) and the bending mold (4), and the unloading triangle block (92) is used to lift the pipe for unloading.

5. A multi-station pipe bending device according to claim 3, characterized in that: The rotating unit (10) comprises a rotating plate (101) rotatably connected to the second rotating shaft (6), a first gear (102) fixedly connected to the end side of the rotating plate (101), a second gear (103) meshingly connected to the first gear (102), and a motor output shaft (104) fixedly connected to the second gear (103); the motor output shaft (104) is rotatably connected to the machine plate (1).

6. A multi-station pipe bending device according to claim 5, characterized in that: The pipe bending structure (11) comprises a second hydraulic rod (111) fixedly connected to the inner side of the rotating plate (101) and a pipe bending clamp (112) fixedly connected to the power output end of the second hydraulic rod (111); the pipe bending clamp (112) is provided with a bending groove matched with the pipe groove (13).

7. A multi-station pipe bending device according to claim 5, characterized in that: The third hydraulic rod (15) is fixedly connected to a side position of the rotating plate (101).

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