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CN-121988644-A - Pipe fitting bending machine

CN121988644ACN 121988644 ACN121988644 ACN 121988644ACN-121988644-A

Abstract

The invention discloses a pipe fitting bending machine, which belongs to the field of pipe bending machines, wherein a traditional pipe bending plate is changed into a split type design through the split type pipe bending plate, an operator is allowed to directly detach or install a first pipe bending half plate and a second pipe bending half plate from an installation shaft, the installation shaft does not need to be detached integrally like the traditional integral pipe bending plate, the equipment downtime is obviously reduced, the production continuity is improved, meanwhile, the first pipe bending half plate and the second pipe bending half plate are used as independent modules, only damaged parts are needed to be replaced during maintenance, the service life of a die is prolonged, and meanwhile, the positions of the first pipe bending half plate and the second pipe bending half plate are pre-locked through the cooperation of a jogging part and a jogging groove, so that the first pipe bending half plate and the second pipe bending half plate can be pre-fixed on the installation shaft and axially aligned with the installation shaft, and the pipe fitting bending non-uniformity or equipment damage caused by centrifugal force generated during rotation is prevented.

Inventors

  • WANG BAISHI

Assignees

  • 卡维亚(南通)洁净材料有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (9)

  1. 1. The pipe bending machine comprises a pipe bending machine body (10), wherein the pipe bending machine body (10) comprises a mounting frame (11), a clamp (12) for fixing a pipe fitting is mounted on the mounting frame (11), and a mounting shaft (13) which is rotatably arranged, and the pipe bending machine is characterized in that at least one split type pipe bending disc (20) matched with the clamp (12) is arranged on the mounting shaft (13); The split type pipe bending disc (20) comprises a first pipe bending half disc (21) and a second pipe bending half disc (22) which are arranged on the mounting shaft (13), and grooves matched with the outer diameter of the pipe fitting are formed in the first pipe bending half disc (21) and the second pipe bending half disc (22); The first elbow half disc (21) and the second elbow half disc (22) are provided with an embedded part (24), at least two embedded grooves (26) matched with the embedded part (24) are symmetrically formed in the bottom of a rotating ring (25) which is rotatably arranged on the mounting shaft (13), the embedded part (24) is matched with the rotating track of the embedded groove (26) when the first elbow half disc (21) and the second elbow half disc (22) are attached to the mounting shaft (13), and the embedded groove (26) is rotatably embedded on the embedded part (24), so that the first elbow half disc (21) and the second elbow half disc (22) are fixed on the mounting shaft (13) and are axially aligned with the mounting shaft (13).
  2. 2. The pipe bending machine according to claim 1, wherein the split type pipe bending disc (20) is further provided with a key groove (23), the key groove (23) comprises a first half groove (231) and a second half groove (232) which are respectively arranged at two ends of the first pipe bending half disc (21) and the second pipe bending half disc (22), and the rotating ring (25) is movably provided with a movable key (27) matched with the key groove (23); When the embedded groove (26) rotates, the movable key (27) rises to be embedded into the rotating ring (25) to avoid hard contact, after the embedded groove (26) is embedded in the embedded part (24), the movable key (27) rotates to the upper part of the key groove (23) along with the rotating ring (25), and the movable key (27) descends to be embedded into and tightly abuts against the first half groove (231) and the second half groove (232), so that the end surfaces of the first bent pipe half disc (21) and the second bent pipe half disc (22) are kept parallel.
  3. 3. A pipe bender according to claim 2, wherein the mounting shaft (13) is further provided with a flat key (131) cooperating with the key slot (23) and parallel to the movable key (27) in the axial direction; The first bent pipe half plate (21) and the second bent pipe half plate (22) are respectively attached to the flat key (131) through a first half groove (231) and a second half groove (232) which are formed in the bottom end to perform preliminary positioning, and the movable key (27) is embedded into the first half groove (231) and the second half groove (232) which are formed in the top ends of the first bent pipe half plate (21) and the second bent pipe half plate (22) to be matched with the flat key (131) to complete locking positioning.
  4. 4. A pipe bender according to claim 3, wherein the movable key (27) is controlled to be lifted by a locking mechanism (30) arranged on the mounting shaft (13), the locking mechanism (30) comprises an internal thread ring (37) which is engaged and sleeved by a thread part (36) arranged on the mounting shaft (13), a limit ring (39) for limiting the moving distance of the internal thread ring (37) is arranged at the end part of the thread part (36), and an abutting block (38) is arranged at the end part of the internal thread ring (37); The outer wall of the rotating ring (25) is provided with a lifting cavity (251) for the movable key (27) to slide and embed, the inner wall of the rotating ring is provided with an annular abutting table (310) with the same cross section as the annular abutting part (31) arranged at the top of the movable key (27), and the abutting block (38) abuts against the abutting part (31) and pushes the movable key (27) to descend in the lifting cavity (251) when the abutting block (38) descends along with the rotation of the internal thread ring (37) until the end part of the abutting block (38) abuts against the abutting table (310).
  5. 5. A pipe bender according to claim 4, wherein the movable key (27) is provided with a chute (32) which is matched with a sliding block (34) arranged on the inner wall of the lifting cavity (251), the inner wall of the chute (32) is provided with a guide rod (33) penetrating through the sliding block (34), the surface of the guide rod (33) is wound with a spring (35), and two ends of the spring (35) are respectively connected with the end part of the sliding block (34) and the inner wall of the chute (32).
  6. 6. A pipe bending machine according to claim 1, wherein the surfaces of the first bending half-plate (21) and the second bending half-plate (22) are detachably provided with a separating mechanism (40), the separating mechanism (40) comprises a positioning frame (45) matched with grooves of the first bending half-plate (21) and the second bending half-plate (22), and at least two grab handles (47) are arranged on the positioning frame (45) through an outer frame (44); The grooves of the first bent pipe half disc (21) and the second bent pipe half disc (22) are aligned with the positioning frame (45) and then are rotationally embedded into an opening cavity formed by the combination of the outer frame (44) and the positioning frame (45).
  7. 7. A pipe bender according to claim 6, wherein the separating mechanism (40) further comprises an output shaft (41) disposed on the mounting frame (11), a first carrying frame (42) is rotatably disposed on the output shaft (41), and a second carrying frame (43) synchronously rotating with the first carrying frame (42) and having a rotation direction opposite to that of the first carrying frame, and the first bending half-plate (21) and the second bending half-plate (22) are mounted on the first carrying frame (42) and the second carrying frame (43) through an outer frame (44).
  8. 8. A pipe bender according to claim 7, wherein the first carrying frame (42) and the second carrying frame (43) are provided with grooves (48), the outer frame (44) is provided with protrusions (441) matching with the grooves (48), and the protrusions (441) are provided with telescopic locking members (46) through a reset mechanism (50); The reset mechanism (50) comprises a containing cavity (51) arranged in the protruding block (441), and the locking piece (46) is embedded on a sliding rail (52) arranged on the inner wall of the containing cavity (51) in a sliding manner; One side of the end part of the locking piece (46) is provided with an inclined plane, and the other end of the locking piece is connected with the accommodating cavity (51) through a telescopic rod (53).
  9. 9. A pipe bender according to claim 8, wherein the reset mechanism (50) further comprises a rotating shaft (57) rotatably disposed at the bottom end of the inner wall of the protruding block (441), the end of the rotating shaft (57) is provided with a gear (56), and at least one guide groove (58) is formed on the surface of the rotating shaft (57); An inner cavity (54) is formed in the bottom of the locking piece (46), and a gear (56) is arranged in the inner cavity (54) and meshed with teeth (55) arranged on the inner wall of the inner cavity (54); the bottom of the groove (48) is provided with a plug rod (59), and the inner wall of the plug rod (59) is provided with a guide piece (510) matched with the guide groove (58).

Description

Pipe fitting bending machine Technical Field The invention relates to the technical field of pipe bending machines, in particular to a pipe bending machine for pipe fittings. Background The pipe bender is special equipment for bending metal pipes, such as steel pipes, copper pipes, aluminum pipes and the like, into specific angles or shapes, and is widely applied to multiple fields of pipe installation, part manufacturing, aerospace, automobile industry, constructional engineering and the like; The pipe bender prevents the pipe from being displaced during bending by placing the pipe to be bent into a pipe bending die and securing it using a clamping device such as a clamp or chuck. According to the type of the pipe bending machine, bending force is applied to the pipe through a mechanical transmission system, a hydraulic system or a numerical control system, so that the pipe is gradually bent into a preset angle and a preset shape; In the bending process, the shape and the size of the pipe bending disc control the bending radius and the angle of the pipe, the bending parameters are precisely controlled through a preset program, high machining precision is ensured, the pipe bending disc is generally circular and is provided with a central shaft hole for being installed and fixed on a pipe bending machine, and in order to adapt to the bending requirements of the pipe with different specifications and shapes, the pipe bending disc is generally designed to be replaceable, so that the pipe bending disc with different specifications or shapes can be replaced according to the requirements, and the flexibility and the applicability of the pipe bending machine are improved; However, in practical use, the conventional integral type elbow disc is in some remarkable problems, because the integral type elbow disc needs to be sleeved through a central shaft hole and fixed on a mounting shaft through a fastener or interference fit, when the integral type elbow disc is replaced, all fixing parts are required to be detached, then the integral type elbow disc is taken out, finally new parts are installed again and calibrated, if the mounting shaft is integrated with other parts, the associated structure is required to be detached additionally, the steps are complicated, peripheral components are easy to damage, and in addition, if a certain part of the elbow disc is damaged, the integral type elbow disc needs to be replaced, so that the maintenance cost and the downtime are increased. Disclosure of Invention The invention aims to solve the problems that the traditional integral pipe bending plate needs to be sleeved on the installation shaft integrally through a central shaft hole and fixed on the installation shaft through a fastener or interference fit, all fixing parts are required to be detached firstly during replacement, then the pipe bending plate is taken out integrally, finally new parts are installed again and calibrated, if the installation shaft is integrated with other parts, the relevant structure is required to be detached additionally, the steps are complicated, peripheral components are easy to damage, in addition, if a part of the pipe bending plate is damaged, the pipe bending plate needs to be replaced integrally, and the maintenance cost and the downtime are increased. In order to achieve the above purpose, the invention adopts the following technology: the pipe bending machine comprises a pipe bending machine body, wherein the pipe bending machine body comprises a mounting frame, a clamp for fixing a pipe fitting is mounted on the mounting frame, and a mounting shaft which is rotatably arranged, wherein at least one split type pipe bending disc matched with the clamp is arranged on the mounting shaft; the split type pipe bending disc comprises a first pipe bending half disc and a second pipe bending half disc which are arranged on the mounting shaft, and grooves matched with the outer diameter of the pipe fitting are formed in the first pipe bending half disc and the second pipe bending half disc; The first bent pipe half disc and the second bent pipe half disc are provided with jogged parts, at least two jogged grooves matched with the jogged parts are symmetrically formed in the bottoms of the rotating rings which are rotatably arranged on the mounting shaft, when the first bent pipe half disc and the second bent pipe half disc are attached to the mounting shaft, the positions of the jogged parts are matched with the rotating track of the jogged grooves, the jogged grooves are rotatably nested on the jogged parts, and the first bent pipe half disc and the second bent pipe half disc are fixed on the mounting shaft and are axially aligned with the mounting shaft. As a further description of the above technology, a pipe bender: The split type elbow plate is also provided with a key slot, the key slot comprises a first half slot and a second half slot which are respectively arranged at two ends of the fir