CN112338012A

CN112338012A - Double-station type machining pipeline bending device

Info

Publication number: CN112338012A
Application number: CN202011148880.9A
Authority: CN
Inventors: 邱波
Original assignee: Huzhou Zhongfu Renguan Technology Co ltd
Current assignee: QINGDAO ZHANGSHI MACHINERY CO Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-02-09
Anticipated expiration: 2040-10-23
Also published as: CN112338012B

Abstract

The invention discloses a double-station type mechanical machining pipeline bending device, and relates to the technical field of pipeline machining machinery. The double-station type machining pipeline bending device comprises an insulation box, wherein two groups of heat conduction cylinders are welded inside the insulation box, a bottom plate is welded on the outer surface of one side of the insulation box, a heating box is welded on the outer surface of the top of the insulation box, and an oil changing box is welded on the outer surface of the top of the heating box. According to the bending mechanism, the installation box, the rotating rod, the rotating plate, the protective shell, the servo motor, the driving belt pulley, the driven belt pulley, the belt and the shifting block are matched for use, so that two groups of clamped and conveyed pipelines can be bent at the same time, on one hand, the two groups of pipelines are bent at the same time, the production efficiency is greatly improved, on the other hand, the bending mechanism is low in cost, convenient to popularize and use, simple to operate, capable of avoiding troubles caused by complex operation to a user, and effectively improving the convenience of the bending mechanism.

Description

Double-station type machining pipeline bending device

Technical Field

The invention relates to the technical field of pipeline processing machinery, in particular to a pipeline bending device for double-station type mechanical processing.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device; according to the difference of the processing modes, the mechanical processing can be divided into cutting processing and pressure processing; with the rapid development of modern machining and the rapid development of machining technology, many advanced machining technical methods, such as micro machining technology, rapid forming technology, precise ultraprecise machining technology and the like, are gradually emerged.

The existing pipeline bending device for partial mechanical processing needs to be heated before bending, heat transfer oil is usually used for heating, the heat transfer oil needs to be poured out firstly after the temperature of the heat transfer oil is lowered, then high-temperature heat transfer oil is added again, the operation is complex, oil can not be changed in time, only a group of pipelines can be bent, and the production efficiency is low.

Disclosure of Invention

The present invention is directed to a dual-station type mechanical pipe bending apparatus to solve the above-mentioned problems.

In order to achieve the purpose, the invention provides the following technical scheme: a double-station type mechanical processing pipeline bending device comprises an insulation box, wherein two groups of heat conduction cylinders are welded and installed inside the insulation box, a bottom plate is welded and installed on the outer surface of one side of the insulation box, a heating box is welded and installed on the outer surface of the top of the insulation box, an oil change box is welded and installed on the outer surface of the top of the heating box, communicated pipes are welded and installed on the adjacent side walls of the two groups of heat conduction cylinders, two ends of each communicated pipe are respectively communicated with the inside of the two groups of heat conduction cylinders, a limiting block is welded and installed on the top of the inner side of the oil change box, a threaded rod is arranged on the oil change box, an opening is formed in the oil change box, one end of the threaded rod longitudinally penetrates through the opening to extend into the inside of the oil change box and is rotatably connected with a pushing block, positioning rods are welded and installed on the outer walls of two sides of the pushing block, one end of each positioning rod is contacted with the top of the pressing plate, two groups of installation openings which are positioned on the same straight line are arranged on the heating box and the oil change box respectively, an oil outlet pipe and an oil inlet pipe are welded and installed in the two groups of installation openings respectively, a stirring rod is installed inside the heating box in a rotating mode, stirring blades are installed on the outer wall of the stirring rod in a welding mode, one end of the stirring rod extends to the outer wall of one side of the heating box, a gear is welded and installed on the outer wall of the stirring rod far away from the inside of the heating box, an installation part is welded and installed on the outer wall of one side of the heating box, a hydraulic rod is welded and installed on the top of the installation part, a hydraulic rod is fixedly connected with the free end of the hydraulic rod, the hydraulic rod is meshed with the gear, a heating plate is fixedly, the top of the insulation can is welded with a supporting block, the top of the insulation can is welded with an L-shaped rod, one side of the L-shaped rod is welded with a connecting plate, two groups of installation boxes are welded with adjacent side walls of the supporting block and the connecting plate, the interior of the installation box is rotatably provided with a rotating rod, the outer wall of the rotating rod is welded with two groups of rotating plates, the outer surface of the top of one group of installation boxes is welded with a protective shell, the top of the inner side of the protective shell is welded with a servo motor, one ends of the two groups of rotating rods extend to the top of the installation box and are respectively and fixedly connected with a driving belt pulley and a driven belt pulley, an output shaft of the servo motor is fixedly connected with one end of the group of rotating rods through a coupler, belts are sleeved on the driving belt pulley and the driven, the one end of stirring the piece passes the arc opening and extends to the bottom and the fixedly connected with mounting panel of install bin, the spout has been seted up to the inside of mounting panel, the bottom of mounting panel is provided with two sets of U-shaped pieces, slidable mounting has two sets of sliders in the spout, the opening has been seted up to the bottom of mounting panel, the top of U-shaped piece pass the opening and with slider fixed connection, U-shaped piece and mounting panel slidable mounting, the connecting rod is installed in the inside rotation of mounting panel, the outer wall fixed mounting of connecting rod has special-shaped wheel, two-way lead screw is installed to the spout internal rotation.

Preferably, a pressure relief valve is arranged on the pressure relief pipe.

Preferably, one side surface welding of heating cabinet installs the feed liquor pipe and communicates with each other rather than inside, and the rear side surface welding of heating cabinet installs the casting pipe and communicates with each other rather than inside, and the one end screw thread installation knob lid of casting pipe, the front side surface mosaic of heating cabinet installs the glass window, and the outer wall of glass window is pasted and is fixed with the scale label.

Preferably, the top surface welding of fuel changing tank installs the liquid feeding pipe and communicates with each other rather than inside, and the front side surface mosaic of fuel changing tank installs the observation window, and the outer wall of observation window is pasted and is fixed with the scale label.

Preferably, the other end of the threaded rod is welded with a control handle.

Preferably, the rear outer surface of the mounting plate is rotatably provided with a rotating handle, and one end of the rotating handle extends into the sliding groove and is fixedly connected with the bidirectional screw rod.

Preferably, the outer wall of the heat-conducting cylinder is fixedly provided with a liquid discharge pipe and communicated with the inside of the heat-conducting cylinder, and one end of the liquid discharge pipe is provided with a knob cover in a threaded manner.

Preferably, the inner wall of the heat conduction cylinder is hinged with a heat conduction block, and one end of the heat conduction block is provided with a half-moon-shaped groove.

Compared with the prior art, the invention has the beneficial effects that:

(1) this pipeline bending device of double-station type machining, through the heat conduction drum, trade the oil tank, the closed tube, the stopper, the threaded rod, promote the piece, the clamp plate, the pressure release pipe, the locating lever, go out the oil pipe, advance oil pipe, arrange oil pipe and return oil pipe and can pressurize the conduction oil and trade the oil operation, the temperature of conduction oil has been ensured, avoided the heat conduction oil temperature step-down to lead to the not good condition of pipeline of heating, and then avoided the heating not good produce the not cracked condition that leads to inadequately of toughness when follow-up pipeline is crooked, the effectual unexpected loss of having avoided.

(2) This two station formula machining's pipeline bending apparatus, through the puddler, stirring fan blade, the gear, the hydraulic stem, the cooperation of rack and hot plate is used, can stir the conduction oil that flows back behind the heat transfer and heat, stirring and heating has ensured the homogeneity of conduction oil heat degree, the not enough influence that produces of local heat degree has been avoided, the convenience recycles the conduction oil, the condition of the conduction oil that still needs the temperature step-down to pour out the high temperature conduction oil again has been avoided, the effectual convenience of strengthening this device.

(3) This pipeline bending device of two station formula machining uses through the cooperation of insulation can, heat conduction drum and closed tube, can heat the pipeline, increases the toughness of pipeline, and it is effectual to heat on the one hand, and heat conduction speed is fast, and on the other hand makes things convenient for direct bending on next step, the effectual bending efficiency who strengthens this device.

(4) This pipeline bending device of two station formula machining uses through the cooperation of mounting panel, U-shaped piece, slider, connecting rod, special-shaped wheel and two-way lead screw, can press from both sides the pipeline that transports tightly, makes things convenient for the bending treatment that comes next on the one hand, and on the other hand can be applicable to the pipeline of most sizes, makes things convenient for different pipeline processing, the effectual fault-tolerant rate of strengthening this device.

(5) This two station formula machining's pipeline bending device, through the install bin, the dwang, the rotor plate, the protective housing, servo motor, drive pulley, driven pulley, the belt is used with the cooperation of stirring the piece, can carry out bending treatment with the pipeline that two sets of centre grippings transported simultaneously, on the one hand carry out two sets of pipelines to be crooked simultaneously and strengthened production efficiency greatly, this bending mechanism of on the other hand cost is lower, just with promote and use, and easy operation, the puzzlement that complex operation caused the user has been avoided, the effectual convenience of strengthening this device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic left side view of a heat conducting cylinder according to the present invention;

FIG. 4 is an enlarged view of portion A of the present invention;

FIG. 5 is an enlarged view of section B of the present invention;

FIG. 6 is a rear view of the driven pulley of the present invention;

fig. 7 is a left side structural diagram of the mounting plate of the present invention.

In the figure: 1 insulation can, 2 heat conduction cylinder, 3 bottom plate, 4 heating box, 5 oil changing box, 6 communicating tube, 7 limited block, 8 threaded rod, 9 pushing block, 10 pressing plate, 11 pressure relief tube, 12 positioning rod, 13 oil outlet tube, 14 oil inlet tube, 15 heat conducting block, 16 stirring rod, 17 stirring fan blade, 18 gear, 19 hydraulic rod, 20 rack, 21 heating plate, 22 oil discharge tube, 23 oil return tube, 24 supporting block, 25L-shaped rod, 26 connecting plate, 27 mounting box, 28 rotating rod, 29 rotating plate, 30 protective housing, 31 servo motor, 32 driving belt pulley, 33 driven belt pulley, 34 belt, 35 stirring block, 36 mounting plate, 37U-shaped block, 38 sliding block, 39 connecting rod, 40 special-shaped wheel and 41 bidirectional screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a double-station type mechanical processing pipeline bending device comprises an insulation box 1, two groups of heat conduction cylinders 2 are welded and installed inside the insulation box 1, a bottom plate 3 is welded and installed on the outer surface of one side of the insulation box 1, a heating box 4 is welded and installed on the outer surface of the top of the insulation box 1, an oil change box 5 is welded and installed on the outer surface of the top of the heating box 4, communicated pipes 6 are welded and installed on the adjacent side walls of the two groups of heat conduction cylinders 2, two ends of each communicated pipe 6 are respectively communicated with the inside of the two groups of heat conduction cylinders 2, a limiting block 7 is welded and installed on the top of the inner side of the oil change box 5, a threaded rod 8 is arranged on the oil change box 5, an opening is formed in the oil change box 5, one end of each threaded rod 8 longitudinally penetrates through the opening to extend to the inside of the oil change box, a round opening is arranged on one group of pressing plate 10, a pressure relief pipe 11 is welded and arranged in the round opening, positioning rods 12 are welded and arranged on the outer walls of the two sides of a pushing block 9, one end of each positioning rod 12 is in contact with the top of the pressing plate 10, two groups of mounting openings which are positioned on the same straight line are arranged on the heating box 4 and the oil change box 5, an oil outlet pipe 13 and an oil inlet pipe 14 are respectively welded and arranged in the two groups of mounting openings, a stirring rod 16 is rotatably arranged in the heating box 4, stirring blades 17 are welded and arranged on the outer wall of the stirring rod 16, one end of the stirring rod 16 extends to the outer wall of one side of the heating box 4, a gear 18 is welded and arranged on the outer wall of the stirring rod 16 far away from the inside of the heating box 4, a mounting piece is welded and arranged on the outer wall of one side of the heating box 4, the heating plate 21 is fixedly arranged on the inner wall of the heating box 4, the stirring rod 16, the stirring fan blades 17, the gear 18, the hydraulic rod 19, the rack 20 and the heating plate 21 are matched for use, the heat conduction oil which flows back after heat exchange can be stirred and heated, the uniformity of the heat degree of the heat conduction oil is guaranteed by stirring and heating, the influence caused by insufficient local heat is avoided, the heat conduction oil is convenient to recycle, the condition that the heat conduction oil which is required to be subjected to temperature reduction is poured out and then high-temperature heat conduction oil is added again is avoided, the convenience of the device is effectively enhanced, two groups of oil discharge pipes 22 and oil return pipes 23 are welded and arranged at the bottom of the inner side of the heating box 4, one ends of the two groups of oil discharge pipes 22 and oil return pipes 23 respectively penetrate through the heating box 4 and the heat insulation box 1 and extend to the inside of the heat conduction cylinder 2, and the oil change box, The pressure plate 10, the pressure relief pipe 11, the positioning rod 12, the oil outlet pipe 13, the oil inlet pipe 14, the oil discharge pipe 22 and the oil return pipe 23 can pressurize heat-conducting oil for oil change operation, the temperature of the heat-conducting oil is ensured, the condition that the pipeline is not well heated due to temperature reduction of the heat-conducting oil is avoided, the condition that the pipeline is not well heated due to poor heating and the fracture is caused due to insufficient toughness when the subsequent pipeline is bent is further avoided, the accidental loss is effectively avoided, the supporting block 24 is welded and installed at the top of the heat insulation box 1, the L-shaped rod 25 is welded and installed at the top of the heat insulation box 1, the connecting plate 26 is welded and installed at one side of the L-shaped rod 25, two groups of installation boxes 27 are welded and installed at the adjacent side walls of the supporting block 24 and the connecting plate 26, the rotating, the servo motor 31 is welded and installed on the top of the inner side of the protective shell 30, one ends of the two groups of rotating rods 28 extend to the top of the installation box 27 and are respectively and fixedly connected with a driving belt pulley 32 and a driven belt pulley 33, an output shaft of the servo motor 31 is fixedly connected with one end of the one group of rotating rods 28 through a coupler, belts 34 are sleeved on the driving belt pulley 32 and the driven belt pulley 33, the driving belt pulley 32 and the driven belt pulley 33 are in transmission connection through the belts 34, an arc-shaped opening is formed in the bottom of the installation box 27, a poking block 35 is welded and installed on the outer wall of the rotating plate 29, one end of the poking block 35 extends to the bottom of the installation box 27 through the arc-shaped opening and is fixedly connected with an installation plate 36, the start of the servo motor 31 is controlled, the start of the servo motor 31 drives the two groups of rotating rods, the rotating plate 29 drives two sets of mounting plates 36 to move reversely through the shifting block 35, so that two sets of clamped and conveyed pipelines can be bent simultaneously, on one hand, the two sets of pipelines are bent simultaneously, the production efficiency is greatly enhanced, on the other hand, the bending mechanism has low cost, is convenient to popularize and use, is simple to operate, avoids troubles caused by complex operation to a user, effectively enhances the convenience of the device, the mounting plates 36 are internally provided with sliding grooves, the bottom of the mounting plates 36 are provided with two sets of U-shaped blocks 37, two sets of sliding blocks 38 are slidably mounted in the sliding grooves, the bottom of the mounting plates 36 is provided with openings, the tops of the U-shaped blocks 37 penetrate through the openings and are fixedly connected with the sliding blocks 38, the U-shaped blocks 37 are slidably mounted with the mounting plates 36, the inside of the mounting plates 36 is rotatably provided with connecting rods 39, the outer walls of the, the sliding block 38 is sleeved on the outer wall of the bidirectional screw rod 41 in a threaded manner.

A pressure relief valve is arranged on the pressure relief pipe 11, a liquid inlet pipe is welded and installed on the outer surface of one side of the heating box 4 and communicated with the inside of the heating box, a liquid discharge pipe is welded and installed on the outer surface of the rear side of the heating box 4 and communicated with the inside of the heating box, a knob cover is installed at one end of the liquid discharge pipe in a threaded manner, a glass window is embedded and installed on the outer surface of the front side of the heating box 4, a scale label is pasted and fixed on the outer wall of the glass window, a liquid feeding pipe is welded and installed on the outer surface of the top of the oil change box 5 and communicated with the inside of the oil change box, an observation window is embedded and installed on the outer surface of the front side of the oil change box 5, a scale label is pasted and fixed on the outer wall of the observation window, a control handle is welded and installed on the other end of the threaded rod 8, a rotating handle is rotatably installed on, the rotation of the rotating handle drives the rotation of the bidirectional screw rod 41, the rotation of the bidirectional screw rod 41 drives the two groups of slide blocks 38 to move in the same direction, the two groups of slide blocks 38 drive the two groups of special-shaped wheels 40 to move in the same direction through the two groups of U-shaped blocks 37 and the two groups of connecting rods 39, so that conveyed pipelines can be clamped tightly, on one hand, the following bending treatment is facilitated, on the other hand, the device is suitable for most pipelines with different sizes, the fault tolerance of the device is effectively enhanced, a liquid discharge pipe is fixedly arranged on the outer wall of the heat conduction cylinder 2 and is communicated with the inside of the heat conduction cylinder, a knob cover is arranged at one end of the liquid discharge pipe in a threaded manner, the heat conduction block 15 is hinged and arranged on the inner wall of the heat conduction cylinder 2, a half-moon-shaped conveying groove is formed in one end of the heat conduction block 15, the toughness of pipeline is increased, and on the one hand the heating is effectual, and heat conduction is fast, and on the other hand makes things convenient for direct bending treatment on next step, the effectual bending efficiency who strengthens this device.

The working principle is as follows: the device is placed in a pipeline conveying device, then when two groups of conveyed pipelines pass through a heat conducting block 15 in a heat conducting cylinder 2, the pipelines are automatically heated, then the pipelines pass between two groups of special-shaped wheels 40 and rotate by holding a rotating handle when positioned between the two groups of special-shaped wheels 40, the rotation of the rotating handle drives a bidirectional screw rod 41 to rotate, the rotation of the bidirectional screw rod 41 drives two groups of sliding blocks 38 to move in the same direction, the two groups of sliding blocks 38 drive two groups of special-shaped wheels 40 to move in the same direction through two groups of U-shaped blocks 37 and two groups of connecting rods 39 so as to clamp the pipelines, then the start of a servo motor 31 is controlled after clamping, the start of the servo motor 31 drives two groups of rotating rods 28 to rotate through a driving belt pulley 32, a driven belt pulley 33 and a belt 34, the driving of the rotating rods 28 drives two groups of rotating plates 29 to rotate, and the, thereby the pipeline achieves the bending effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipeline bending apparatus of two station formula machining, includes insulation can (1), its characterized in that: the heat-exchange oil tank is characterized in that two groups of heat-conducting cylinders (2) are welded inside the heat-insulation tank (1), a bottom plate (3) is welded on the outer surface of one side of the heat-insulation tank (1), a heating box (4) is welded on the outer surface of the top of the heat-insulation tank (1), an oil-exchange box (5) is welded on the outer surface of the top of the heating box (4), communicated pipes (6) are welded on the adjacent side walls of the two groups of heat-conducting cylinders (2), two ends of each communicated pipe (6) are respectively communicated with the inside of the two groups of heat-conducting cylinders (2), a limiting block (7) is welded on the top of the inner side of the oil-exchange box (5), a threaded rod (8) is arranged on the oil-exchange box (5), an opening is formed in one end of the threaded rod (8) longitudinally penetrates through the opening to extend into the inside, two groups of pressing plates (10) are hinged to the outer surface of the bottom of a pushing block (9), a round opening is formed in one group of pressing plates (10), a pressure relief pipe (11) is welded in the round opening, positioning rods (12) are welded on the outer walls of the two sides of the pushing block (9), one end of each positioning rod (12) is in contact with the top of each pressing plate (10), two groups of mounting openings which are located on the same straight line are formed in a heating box (4) and an oil changing box (5), an oil outlet pipe (13) and an oil inlet pipe (14) are respectively welded in the two groups of mounting openings, a stirring rod (16) is rotatably mounted in the heating box (4), stirring blades (17) are welded on the outer wall of the stirring rod (16), one end of the stirring rod (16) extends to the outer wall of one side of the heating box (4), a gear (18) is welded on the outer wall of the stirring, the heating box comprises a heating box body (4), a mounting part is welded on the outer wall of one side of the heating box body (4), a hydraulic rod (19) is welded on the top of the mounting part, a hydraulic rod (19) is fixedly connected with the free end of the hydraulic rod (19), the hydraulic rod (19) is meshed with a gear (18), a heating plate (21) is fixedly installed on the inner wall of the heating box body (4), two groups of oil discharge pipes (22) and oil return pipes (23) are welded on the bottom of the inner side of the heating box body (4), one ends of the two groups of oil discharge pipes (22) and the oil return pipes (23) penetrate through the heating box body (4) and an insulation box (1) respectively and extend to the inside of a heat conduction cylinder (2), a supporting block (24) is welded on the top of the insulation box body (1), an L-shaped rod (25) is welded on the top of the insulation box body (1), a connecting plate (26), a rotating rod (28) is rotatably arranged inside the installation box (27), two groups of rotating plates (29) are welded on the outer wall of the rotating rod (28), a protective shell (30) is welded on the outer surface of the top of the installation box (27), a servo motor (31) is welded on the top of the inner side of the protective shell (30), one ends of the two groups of rotating rods (28) extend to the top of the installation box (27) and are fixedly connected with a driving belt pulley (32) and a driven belt pulley (33) respectively, an output shaft of the servo motor (31) is fixedly connected with one end of the rotating rod (28) through a coupler, belts (34) are sleeved on the driving belt pulley (32) and the driven belt pulley (33) respectively, the driving belt pulley (32) and the driven belt pulley (33) are in transmission connection through the belts (34), an arc-shaped opening is formed in the bottom of the installation box (27), and a pok, the one end of dialling movable block (35) passes the arc opening and extends to bottom and fixedly connected with mounting panel (36) of install bin (27), the spout has been seted up to the inside of mounting panel (36), the bottom of mounting panel (36) is provided with two sets of U-shaped piece (37), slidable mounting has two sets of slider (38) in the spout, the opening has been seted up to the bottom of mounting panel (36), the top of U-shaped piece (37) pass the opening and with slider (38) fixed connection, U-shaped piece (37) and mounting panel (36) slidable mounting, connecting rod (39) are installed in the internal rotation of mounting panel (36), the outer wall fixed mounting of connecting rod (39) has special-shaped wheel (40), two-way lead screw (41) are installed to the spout internal rotation, the outer wall of two-way.

2. A dual station machined pipe bending apparatus as set forth in claim 1, wherein: and a pressure relief valve is arranged on the pressure relief pipe (11).

3. A dual station machined pipe bending apparatus as set forth in claim 1, wherein: one side outer surface welding of heating cabinet (4) installs the feed liquor pipe and communicates with each other rather than inside, and the rear side outer surface welding of heating cabinet (4) installs the casting pipe and communicates with each other rather than inside, and the one end screw thread installation knob lid of casting pipe, the front side outer surface of heating cabinet (4) is inlayed and is installed the glass window, and the outer wall of glass window is pasted and is fixed with the scale label.

4. A dual station machined pipe bending apparatus as set forth in claim 1, wherein: the top surface welded mounting of change oil tank (5) has the liquid feeding pipe and communicates with each other rather than inside, and the front side surface of changing oil tank (5) is inlayed and is installed the observation window, and the outer wall of observation window is pasted and is fixed with the scale label.

5. A dual station machined pipe bending apparatus as set forth in claim 1, wherein: and a control handle is welded at the other end of the threaded rod (8).

6. A dual station machined pipe bending apparatus as set forth in claim 1, wherein: the rear outer surface of the mounting plate (36) is rotatably provided with a rotating handle, and one end of the rotating handle extends into the sliding groove and is fixedly connected with a bidirectional screw rod (41).

7. A dual station machined pipe bending apparatus as set forth in claim 1, wherein: the outer wall of the heat conduction cylinder (2) is fixedly provided with a liquid discharge pipe and communicated with the inside of the heat conduction cylinder, and one end of the liquid discharge pipe is provided with a knob cover in a threaded manner.

8. A dual station machined pipe bending apparatus as set forth in claim 7, wherein: the inner wall of the heat conduction cylinder (2) is hinged with a heat conduction block (15), and one end of the heat conduction block (15) is provided with a half-moon-shaped groove.