CN112775215B

CN112775215B - Straightening machine

Info

Publication number: CN112775215B
Application number: CN202011575225.1A
Authority: CN
Inventors: 马泽会; 马元鹏
Original assignee: Shandong Pengrui Zaoyan Technology Co ltd
Current assignee: Shandong Pengrui Zaoyan Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2022-10-21
Anticipated expiration: 2040-12-28
Also published as: CN112775215A

Abstract

The invention relates to a straightening machine, which comprises a supporting mechanism, a control mechanism and a straightening mechanism, wherein the supporting mechanism comprises: the support mechanism is provided with a rolling support platform, a spotlight, a photosensitive sensor, a fixed platform, a slideway, a straightening plate, an upper cross arm, a lower cross arm, a sliding rail and a track; a translation base is arranged on the slide way in a sliding manner, and a screw rod, a slide block, a pushing mechanism, a speed reducer and a servo motor are arranged on the translation base; the straightening mechanism comprises a connecting plate, a bearing plate, a moving wheel, a hydraulic motor, a hydraulic cylinder, a hydraulic oil tank, a hydraulic oil pump, a pressing claw, a pressing disc and a mounting bolt. The invention provides a straightening machine, which can automatically detect the bending part of a pipe and ensure that a pressing part is positioned at the bending part of the pipe.

Description

Straightening machine

Technical Field

The invention relates to the technical field of metal pipe shaping, in particular to a straightening machine.

Background

The tubular product has hollow cross-section, can divide into according to the material: polymer materials, composite materials, metal materials, and the like. The metal pipe has the characteristics of high toughness, high strength and the like, and is widely applied to conveying pipelines, engineering structures, thermal equipment, petrochemical industry, mechanical manufacturing, geological drilling and high-pressure equipment. The steel pipe in the metal pipe is applied to different fields or scenes due to different carbon structures, low alloy structures and alloy steel structures, saves steel in actual application, simplifies construction, greatly reduces the area of a coating protective layer, and saves investment and maintenance cost. The steel pipe is divided into the following parts according to the production process: welding the steel pipe and the seamless steel pipe. Wherein, the welded steel pipe is divided into a straight seam welded steel pipe and a spiral seam welded steel pipe; the seamless steel pipe is divided into hot rolling and cold rolling (drawing). Seamless steel pipes are made of one piece of metal with no welded seams on the surface. The production method of the seamless steel tube comprises the following steps: seamless pipes include hot rolled pipes, cold drawn pipes, extruded pipes, push pipes, etc. In the production process of the seamless steel tube, due to heating, rolling, drawing and cooling in the process, the finished tube can be bent to different degrees in the cooling process, and therefore the finished tube needs to be straightened.

At present, by manually observing the bent portion and straightening by pressing with a hydraulic device, it is apparent that there are the following problems:

1. manually observing and confirming the bent part of the pipe, and manually adjusting the pressed part of the pipe, so that errors are easily caused;

2. the process of manually adjusting the tubing is cumbersome.

Disclosure of Invention

In order to solve the technical problems in the background art, the invention provides a straightening machine which automatically detects the bending part of a pipe and ensures that a pressing part is positioned at the bending part of the pipe.

The technical scheme adopted by the invention is as follows:

a straightening machine comprises a frame type supporting mechanism and a control mechanism, wherein a rolling supporting table is fixedly arranged on the right side of the upper end face of the supporting mechanism, photosensitive sensors and light emitting lamps which are electrically connected with the control mechanism are arranged at the front edge and the rear edge of the upper end face of the rolling supporting table in a protruding mode, the photosensitive sensors and the light emitting lamps are arranged oppositely, fixing tables fixed on the upper end face of the supporting mechanism are arranged on the left side and the right side of the rolling supporting table, and a slide way is fixedly arranged on the upper end face of the fixing tables along the front-back direction.

Slide on the slide and be provided with the translation base, the translation base sets up on the slide of establishing on left and right both sides fixed station along left right direction symmetry, and the rotation is provided with the lead screw between the translation base upper portion that the symmetry set up, the preceding, the back both sides of lead screw are provided with the slide bar with translation base upper portion fixed connection respectively, the slide bar is with the mutual level of lead screw and along controlling the direction setting, and the activity is provided with the removal slider on slide bar, the lead screw, the fixed pushing mechanism that is provided with of lower extreme of removing the slider, the one end connection of lead screw is provided with the reduction gear that is fixed in on the translation base, the connection is provided with the servo motor who is fixed in on the translation base on the reduction gear, servo motor and control mechanism electrical connection.

The left of supporting mechanism up end is fixed with the straightening board adjacent with the left side fixed station, the straightening board sets up along the fore-and-aft direction, and has many side by side, and the straightening board flushes with the last top surface of rolling supporting bench.

And a straightening mechanism fixedly connected with the left translation base is arranged below the straightening plate, and the straightening mechanism moves along the front-back direction and is used for shaping the bent part of the pipe.

Furthermore, a blanking pulley is arranged on the front side of the supporting mechanism.

Further, the pushing mechanism includes many dead levers that set up along upper and lower direction, the upper portion of dead lever is provided with the external screw thread, has the external screw thread the dead lever is inserted and is located on the movable sliding block and fix through the nut, and the nut of spiro union on the dead lever external screw thread and the upper and lower both ends face looks butt of movable sliding block, the fixed disk that is provided with of lower extreme of dead lever, the protrusion is provided with the inserted bar left on the fixed disk, the inserted bar sets up to the soft rubber stick to with fixed disk damping swivelling joint.

Further, the translation base is arranged to be in a frame type trapezoid structure.

Furthermore, a rotating disc is fixedly arranged at the rear end of the translation base, and a rotating handle extending rightwards and a shifting lever extending leftwards are fixedly arranged at the rotating end where the rotating disc can rotate and stop.

Furthermore, two upper cross arms which are parallel to each other are fixedly arranged on the supporting mechanism along the front-back direction, a lower cross arm which is fixedly connected with the supporting mechanism is arranged under the upper cross arm, a sliding rail is fixedly arranged on the lower end face of the upper cross arm, a track is fixedly arranged on the upper end face of the lower cross arm, the sliding rail is arranged right above the track, and the two upper cross arms and the lower cross arm are arranged in parallel along the front-back direction.

Further, straightening mechanism include with left translation base left end face fixed connection's connecting plate, the fixed loading board that extends left that is provided with of lower extreme of connecting plate, be provided with a plurality of wheels that remove on the loading board, remove the wheel roll and set up on the track to with slide rail sliding connection, the middle part of loading board has set gradually hydraulic motor, pneumatic cylinder, hydraulic tank forward by the back, hydraulic motor and a set of wheel axial connections that removes of left and right both sides, hydraulic tank case lid department intercommunication is provided with the hydraulic oil pump with control mechanism electrical connection, the hydraulic oil pump is linked together through hydraulic line and hydraulic motor, pneumatic cylinder, and the stroke end of pneumatic cylinder is fixed and is provided with the pressure claw.

Furthermore, the slide rail and the rail surface of the rail are arranged oppositely;

the inner side of the moving wheel is convexly provided with a wheel rim.

Furthermore, the pressing claw is arranged in a C shape with a forward opening and arranged between the two rightmost straightening plates, a pressing plate is fixedly arranged on the inner bottom end face of the upper portion of the pressing claw, a mounting bolt is fixedly arranged in the center of the upper top end of the pressing plate, and the mounting bolt is inserted into the upper portion of the pressing claw and fixed through a nut.

A method of straightening pipe, comprising:

A. feeding:

the control mechanism controls the servo motor to rotate reversely, the lead screw is driven to rotate reversely through the speed reducer, the movable sliding block moves rightwards to the rightmost end, the rotating handle is pushed downwards manually, and the deflector rod is located at a position far away from the rolling support platform;

the pipe is moved into the rolling support table from the rear part, and the control mechanism adjusts the movable sliding block to move leftwards, so that the inserted rod is inserted into the central hole of the pipe;

manually pulling up the rotating handle to enable the deflector rod to be positioned above the rolling support platform and to be abutted against one side of the pipe;

B. and (3) detection:

the control mechanism controls the operation of the hydraulic oil pump, the hydraulic motor is rotated, meanwhile, the moving wheel is rotated, the straightening mechanism moves from back to front and drives the translation base to move from back to front, at the moment, the shifting rod arranged on the translation base pushes the pipe to roll on the rolling support table from back to front, and the inserted rod is inserted into the central hole of the pipe all the time;

when the pipe rolls on the rolling support platform, the spotlight behind the rolling support platform is shielded, the photosensitive sensor behind the rolling support platform is not triggered, when the bent part of the pipe cannot shield the spotlight, the photosensitive sensor is triggered and sends a trigger signal to the control mechanism, and the control mechanism judges the bent part of the pipe;

C. straightening:

after the control mechanism judges the bent part of the pipe, the judged numerical value is converted into a pulse signal, so that the servo motor is controlled to rotate in the forward direction, the lead screw is driven to rotate in the forward direction through the speed reducer, at the moment, the movable sliding block moves leftwards, and the fixed disc pushes the pipe to the straightening plate and is inserted into a pressing claw arranged on the straightening mechanism;

the control mechanism controls the hydraulic oil pump to operate, and the stroke end of the hydraulic cylinder moves downwards, the pressure plate is abutted against the bent convex part of the pipe and bends downwards under the supporting action of the straightening plates on the left side and the right side of the pressure plate, and therefore the straightening effect is achieved;

the nut on the mounting bolt is disassembled, so that the pressure plate can be disassembled and replaced;

D. and (4) retesting:

the control mechanism controls the hydraulic oil pump to operate, the stroke end of the hydraulic cylinder moves upwards, the pressure plate leaves the pipe, the control mechanism controls the servo motor to rotate reversely, the speed reducer drives the lead screw to rotate reversely, the moving slide block moves rightmost, at the moment, the inserted link pulls the pipe back to the rolling support table, the step B is repeated, and the photosensitive sensor is not triggered until the pipe rolls on the rolling support table;

E. blanking:

when the pipe rolls on the rolling support table, the photosensitive sensor is not triggered, namely the pipe does not need to be straightened;

the control mechanism controls the servo motor to rotate in the positive direction, the lead screw is driven to rotate in the positive direction through the speed reducer, at the moment, the movable sliding block moves leftwards, and the fixed disc completely pushes the pipe to the straightening plate;

the control mechanism controls the hydraulic oil pump to operate, and the stroke end of the hydraulic cylinder moves downwards, and the pressure plate is abutted to the pipe;

the control mechanism controls the servo motor to rotate reversely, the lead screw is driven to rotate reversely through the speed reducer, the inserted rod is pulled out from the central hole of the pipe, and the sliding block is moved rightmost;

the control mechanism controls the hydraulic oil pump to operate, the stroke end of the hydraulic cylinder moves upwards, and the pressure plate leaves the pipe;

and (4) rolling the pipe on the straightening plate after the straightening process forwards onto the blanking pulley, and moving the pipe on the blanking pulley in the left-right direction to be transferred to a finished product area.

The straightening machine method has the advantages that:

1. the seamless pipe rolls on the rolling support table, and the bending part of the seamless pipe is detected through the photosensitive sensor and the light-emitting lamp;

2. the sliding block is driven to move through the control mechanism, the servo motor, the speed reducer and the lead screw, so that the moving accuracy of the seamless pipe is ensured, and the bent part of the seamless pipe is moved to the straightening mechanism;

3. performing cold straightening by a straightening mechanism;

4. and repeatedly detecting and straightening to ensure that the seamless pipe has no bending.

Drawings

In order to more clearly illustrate the embodiments of the present invention, reference will now be made in brief to the accompanying drawings, which are needed in the description, and in which embodiments of the present invention are illustrated.

FIG. 1 is a general perspective view of a leveler provided in an embodiment of the present invention;

FIG. 2 is a partially enlarged first perspective view showing a leveler according to an embodiment of the present invention;

FIG. 3 is a second partially enlarged perspective view of a leveler provided in an embodiment of the present invention;

FIG. 4 is a partially enlarged perspective view three showing a leveler according to an example of the present invention.

In the figure:

10. a supporting mechanism 11-A, an upper cross arm 11-B, a lower cross arm 12-A, a slide rail 12-B and a track,

13. a blanking pulley is arranged on the feeding device,

21. a rolling support table, 22, a spotlight, 23, a photosensitive sensor, 24, a fixed table, 25 and a slide way,

31. a translation base 32, a screw rod 33, a slide rod 34, a movable slide block 35, a pushing mechanism 351 and a fixed rod,

352. a fixed disc 353, an inserted link 36, a reducer 37, a servo motor 38, a rotating disc 39 and a rotating handle,

30. a deflector rod is arranged on the upper portion of the casing,

40. the straightening plate is arranged on the upper surface of the plate,

5. straightening mechanism 50, connecting plate 51, bearing plate 52, moving wheel 53, hydraulic motor 54 and hydraulic cylinder,

55. hydraulic oil tank, 56, hydraulic oil pump, 57, pressing claw, 58, pressing plate, 59 and mounting bolt.

Detailed Description

In order to clearly and clearly illustrate the specific implementation objects and the implementation modes of the invention, the technical scheme of the invention is completely described below, and the described examples are a part of the examples of the invention, but not all the examples. All other embodiments based on the described embodiments of the invention shall fall within the scope of protection of the invention without making any creative effort.

The invention discloses a straightening machine, which comprises a frame type supporting mechanism 10 and a control mechanism as shown in figure 1, wherein a blanking pulley 13 is arranged on the front side of the supporting mechanism 10. A rolling support platform 21 is fixedly arranged on the right side of the upper end face of the support mechanism 10, a photosensitive sensor 23 and a light-emitting lamp 22 which are electrically connected with a control mechanism are arranged at the front edge and the rear edge of the upper end face of the rolling support platform 21 in a protruding mode, the photosensitive sensor 23 and the light-emitting lamp 22 are arranged oppositely, fixing platforms 24 fixed on the upper end face of the support mechanism 10 are arranged on the left side and the right side of the rolling support platform 21, and a slide way 25 is fixedly arranged on the upper end face of the fixing platform 24 in the front-back direction.

As shown in fig. 1 and 2, a translation base 31 having a trapezoid frame structure is slidably disposed on the slide way 25, the translation base 31 is symmetrically disposed on the slide way 25 disposed on the left and right fixing platforms 24 along the left-right direction, a screw rod 32 is rotatably disposed between upper portions of the symmetrically disposed translation bases 31, slide rods 33 fixedly connected to upper portions of the translation base 31 are respectively disposed on front and rear sides of the screw rod 32, the slide rods 33 and the screw rod 32 are horizontally disposed and are disposed along the left-right direction, a movable slider 34 is movably disposed on the slide rods 33 and the screw rod 32, a push mechanism 35 is fixedly disposed at a lower end of the movable slider 34, the push mechanism 35 includes a plurality of fixing rods 351 disposed along the up-down direction, an external thread is disposed on upper portions of the fixing rods 351, the fixing rods 351 are provided with an external thread, the fixing rods 351 are inserted into the movable slider 34 and are fixed by nuts, the nuts screwed on the external thread of the fixing rods 351 abut against upper and lower end surfaces of the movable slider 34, a fixing disk 352 is fixedly disposed at a lower end of the fixing rods 351, an insertion rod 353 is protrudingly disposed on the fixing disk, the fixing disk 352, the insertion rod 353 is provided as a soft damping rubber rod 352, and is rotatably connected to the fixing disk 352. One end of the screw 32 is connected with a reducer 36 fixed on the translation base 31, the reducer 36 is connected with a servo motor 37 fixed on the translation base 31, the servo motor 37 is electrically connected with a control mechanism, the rear end of the translation base 31 is fixedly provided with a rotating disc 38, and the rotatable and stoppable rotating end of the rotating disc 38 is fixedly provided with a rotating handle 39 extending rightwards and a shifting lever 30 extending leftwards.

As shown in FIG. 4, two upper cross arms 11-A parallel to each other are fixedly arranged on the supporting mechanism 10 along the front-back direction, a lower cross arm 11-B fixedly connected with the supporting mechanism 10 is arranged right below the upper cross arm 11-A, a slide rail 12-A is fixedly arranged on the lower end surface of the upper cross arm 11-A, a track 12-B is fixedly arranged on the upper end surface of the lower cross arm 11-B, the slide rail 12-A is arranged right above the track 12-B, and the two track surfaces are opposite and parallel along the front-back direction.

As shown in fig. 1, a straightening plate 40 adjacent to the left fixing table 24 is fixedly disposed on the left of the upper end surface of the supporting mechanism 10, the straightening plates 40 are disposed in the front-rear direction and are arranged side by side, and the straightening plate 40 is flush with the upper top surface of the rolling supporting table 21.

As shown in fig. 1, a straightening mechanism 5 fixedly connected to the left translation base 31 is provided below the straightening plate 40, and the straightening mechanism 5 moves in the front-rear direction to shape the bent portion of the pipe. As shown in fig. 3, the straightening mechanism 5 includes a connecting plate 50 fixedly connected to the left end face of the left translation base 31, a bearing plate 51 extending leftward is fixedly disposed at the lower end of the connecting plate 50, a plurality of moving wheels 52 are disposed on the bearing plate 51, and a rim is disposed on the inner side of the moving wheels 52 in a protruding manner. The movable wheels 52 are arranged on the rails 12-B in a rolling mode and are connected with the sliding rails 12-A in a sliding mode, the middle portion of the bearing plate 51 is sequentially provided with a hydraulic motor 53, a hydraulic cylinder 54 and a hydraulic oil tank 55 from back to front, the hydraulic motor 53 is axially connected with a group of movable wheels 52 on the left side and the right side, a hydraulic oil pump 56 electrically connected with a control mechanism is communicated with the tank cover of the hydraulic oil tank 55, the hydraulic oil pump 56 is communicated with the hydraulic motor 53 and the hydraulic cylinder 54 through hydraulic pipelines, a pressing claw 57 is fixedly arranged at the stroke end of the hydraulic cylinder 54, the pressing claw 57 is arranged in a C shape with a forward opening and is arranged between the two rightmost straightening plates 40, a pressing plate 58 is fixedly arranged on the inner bottom end face of the upper portion of the pressing claw 57, a mounting bolt 59 is fixedly arranged in the center of the upper top end of the pressing plate 58, and the mounting bolt 59 is inserted into the upper portion of the pressing claw 57 and fixed through nuts.

According to the concrete structure of the pipe straightener in the above embodiment, a pipe straightening method will be further described as follows:

A. feeding:

the control mechanism controls the servo motor 37 to rotate reversely, drives the screw rod 32 to rotate reversely through the speed reducer 36, enables the moving slide block 34 to move rightmost, and pushes down the rotating handle 39 manually downwards, so that the shift lever 30 is far away from the rolling support platform 21;

the pipe is moved into the rolling support table 21 from the rear part, and the control mechanism adjusts the movable slide block 34 to move leftwards, so that the insertion rod 353 is inserted into the central hole of the pipe;

manually pulling up the rotating handle 39 to make the deflector rod 30 above the rolling support platform 21 and abut against one side of the pipe;

B. and (3) detection:

the control mechanism controls the hydraulic oil pump 56 to operate, the hydraulic motor 53 is rotated, meanwhile, the moving wheel 52 is rotated, the straightening mechanism 5 moves from back to front and drives the translation base 31 to move from back to front, at the moment, the shifting rod 30 arranged on the translation base 31 pushes the pipe to roll from back to front on the rolling support table 21, and the insertion rod 353 is inserted into the central hole of the pipe all the time;

when the tube rolls on the rolling support platform 21, the spotlight 22 behind the rolling support platform 21 is shielded, the photosensitive sensor 23 behind the rolling support platform 21 is not triggered, when the bent part of the tube cannot shield the spotlight 22, the photosensitive sensor 23 is triggered and sends a trigger signal to the control mechanism, and the control mechanism judges the bent part of the tube;

C. straightening:

after judging the bent part of the pipe, the control mechanism converts the judged numerical value into a pulse signal, thereby controlling the servo motor 37 to rotate in the positive direction, driving the screw rod 32 to rotate in the positive direction through the speed reducer 36, at the moment, moving the sliding block 34 to the left, pushing the pipe to the straightening plate 40 by the fixed disc 352, and inserting the pipe into the pressing claw 57 arranged on the straightening mechanism 5;

the control mechanism controls the hydraulic oil pump 56 to operate, and the stroke end of the hydraulic cylinder 54 moves downwards, the pressure plate 58 is abutted against the bent convex part of the pipe, and the pipe bends downwards under the supporting action of the straightening plates 40 at the left side and the right side of the pressure plate 58, so that the straightening effect is achieved;

the nut on the mounting bolt 59 is removed, so that the pressure plate 58 can be removed, and the pressure plate 58 is replaced;

D. and (4) retesting:

the control mechanism controls the hydraulic oil pump 56 to operate, the stroke end of the hydraulic cylinder 54 moves upwards, the pressure plate 58 leaves the pipe, the control mechanism controls the servo motor 37 to rotate reversely, the speed reducer 36 drives the screw rod 32 to rotate reversely, the moving slide block 34 moves rightmost, at the moment, the inserting rod 353 pulls the pipe back to the rolling support platform 21, the step B is repeated, and the photosensitive sensor 23 is not triggered until the pipe rolls on the rolling support platform 21;

E. blanking:

when the pipe rolls on the rolling support table 21, the photosensitive sensor 23 is not triggered, namely the pipe does not need to be straightened;

the control mechanism controls the servo motor 37 to rotate in the positive direction, the lead screw 32 is driven to rotate in the positive direction through the speed reducer 36, at the moment, the movable sliding block 34 moves leftwards, and the fixed disc 352 completely pushes the pipe to the straightening plate 40;

the control mechanism controls the hydraulic oil pump 56 to operate, and enables the stroke end of the hydraulic cylinder 54 to move downwards, and the pressure plate 58 is abutted with the pipe;

the control mechanism controls the servo motor 37 to rotate reversely, the lead screw 32 is driven to rotate reversely through the speed reducer 36, the insert rod 353 is pulled out from the central hole of the pipe, and the movable slide block 34 moves rightwards to the rightmost end;

the control mechanism controls the operation of the hydraulic oil pump 56, and enables the stroke end of the hydraulic cylinder 54 to move upwards, and the pressure plate 58 leaves the pipe;

the pipe material which is finished with the straightening process on the straightening plate 40 rolls forwards to the blanking pulley 13, and at the moment, the pipe material on the blanking pulley 13 moves in the left-right direction and is transferred to a finished product area.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the embodiment of the leveler without departing from the spirit of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A straightening machine comprises a frame type supporting mechanism (10) and a control mechanism, and is characterized in that:

a rolling support platform (21) is fixedly arranged on the right side of the upper end face of the support mechanism (10), photosensitive sensors (23) and light-emitting lamps (22) which are electrically connected with the control mechanism are arranged at the front edge and the rear edge of the upper end face of the rolling support platform (21) in a protruding mode, the photosensitive sensors (23) and the light-emitting lamps (22) are arranged oppositely, fixing platforms (24) which are fixed on the upper end face of the support mechanism (10) are arranged on the left side and the right side of the rolling support platform (21), slideways (25) are fixedly arranged on the upper end face of the fixing platforms (24) in the front-back direction,

slide on slide (25) and be provided with translation base (31), translation base (31) set up on slide (25) that establish on left and right both sides fixed station (24) along the left and right sides symmetry, the rotatory lead screw (32) that is provided with between translation base (31) upper portion that the symmetry set up, preceding, back both sides of lead screw (32) are provided with respectively with translation base (31) upper portion fixed connection's slide bar (33), slide bar (33) and lead screw (32) are horizontal each other and set up along the left and right sides direction, the activity is provided with on slide bar (33), lead screw (32) and moves slider (34), the lower extreme of moving slider (34) is fixed and is provided with pusher jack (35), and the one end of lead screw (32) is connected and is provided with reduction gear (36) that are fixed in translation base (31), it is provided with servo motor (37) that are fixed in translation base (31) to connect on reduction gear (36), servo motor (37) and control mechanism electrical connection,

the pushing mechanism (35) comprises a plurality of fixing rods (351) arranged along the vertical direction, the upper parts of the fixing rods (351) are provided with external threads, the fixing rods (351) with the external threads are inserted on the movable sliding block (34) and are fixed through nuts, the nuts screwed on the external threads of the fixing rods (351) are abutted against the upper end face and the lower end face of the movable sliding block (34), the lower ends of the fixing rods (351) are fixedly provided with fixed discs (352), the fixed discs (352) are provided with inserting rods (353) in a protruding mode towards the left, the inserting rods (353) are soft rubber rods and are in damping rotary connection with the fixed discs (352),

a straightening plate (40) adjacent to the left fixing table (24) is fixedly arranged on the left of the upper end surface of the supporting mechanism (10), the straightening plates (40) are arranged along the front-back direction and are arranged side by side, the straightening plates (40) are flush with the upper top surface of the rolling supporting table (21),

a straightening mechanism (5) fixedly connected with the translation base (31) on the left side is arranged below the straightening plate (40), the straightening mechanism (5) moves along the front-back direction to shape the bent part of the pipe,

the straightening mechanism (5) comprises a connecting plate (50) fixedly connected with the left end surface of the left translation base (31), the lower end of the connecting plate (50) is fixedly provided with a bearing plate (51) extending leftwards, the bearing plate (51) is provided with a plurality of moving wheels (52), the moving wheels (52) are arranged on the track (12-B) in a rolling way, and is connected with the sliding rail (12-A) in a sliding way, the middle part of the bearing plate (51) is sequentially provided with a hydraulic motor (53), a hydraulic cylinder (54) and a hydraulic oil tank (55) from back to front, the hydraulic motor (53) is axially connected with a group of moving wheels (52) at the left side and the right side, a hydraulic oil pump (56) electrically connected with the control mechanism is communicated with the tank cover of the hydraulic oil tank (55), the hydraulic oil pump (56) is communicated with the hydraulic motor (53) and the hydraulic cylinder (54) through a hydraulic pipeline, a pressure claw (57) is fixedly arranged at the stroke end of the hydraulic cylinder (54), the pressure claw (57) is arranged in a C shape with a forward opening, and is arranged between two rightmost straightening plates (40), a pressure plate (58) is fixedly arranged on the inner bottom end surface of the upper part of the pressure claw (57), a mounting bolt (59) is fixedly arranged in the center of the upper top end of the pressure plate (58), the mounting bolt (59) is inserted into the upper part of the pressing claw (57) and is fixed by a nut.

2. A straightener as claimed in claim 1, wherein:

and a blanking pulley (13) is arranged on the front side of the supporting mechanism (10).

3. A straightener as claimed in claim 2, wherein:

the translation base (31) is arranged to be of a frame type trapezoid structure.

4. A straightener as claimed in claim 3, characterized in that:

the rear end of the translation base (31) is fixedly provided with a rotating disc (38), and a rotating handle (39) extending rightwards and a shifting lever (30) extending leftwards are fixedly arranged at the rotating end of the rotating disc (38) capable of rotating and stopping.

5. A straightener according to claim 4, characterized in that:

the supporting mechanism (10) is fixedly provided with two upper cross arms (11-A) which are parallel to each other along the front-back direction, a lower cross arm (11-B) fixedly connected with the supporting mechanism (10) is arranged under the upper cross arm (11-A), a sliding rail (12-A) is fixedly arranged on the lower end face of the upper cross arm (11-A), a track (12-B) is fixedly arranged on the upper end face of the lower cross arm (11-B), and the sliding rail (12-A) is arranged over the track (12-B) and is parallel to the upper cross arm and the lower cross arm along the front-back direction.

6. A straightener according to claim 5, characterized in that:

the rail surfaces of the slide rail (12-A) and the rail (12-B) are arranged oppositely;

the inner side of the moving wheel (52) is convexly provided with a wheel rim.

7. A pipe straightening method using a straightening machine according to claim 6, characterized in that:

A. feeding:

the control mechanism controls the servo motor (37) to rotate reversely, the lead screw (32) is driven to rotate reversely through the speed reducer (36), the moving slide block (34) is enabled to move rightmost, the rotating handle (39) is manually pushed down downwards, and the deflector rod (30) is enabled to be located at a position far away from the rolling support platform (21);

the pipe is moved into the rolling support table (21) from the rear part, and the control mechanism adjusts the movable sliding block (34) to move leftwards, so that the insertion rod (353) is inserted into the central hole of the pipe;

manually pulling up the rotating handle (39) upwards to enable the deflector rod (30) to be positioned above the rolling support platform (21) and to be abutted against one side of the pipe;

B. and (3) detection:

the control mechanism controls the hydraulic oil pump (56) to operate, the hydraulic motor (53) is rotated, meanwhile, the moving wheel (52) is rotated, the straightening mechanism (5) moves from back to front and drives the translation base (31) to move from back to front, at the moment, a deflector rod (30) arranged on the translation base (31) pushes the pipe to roll on the rolling support table (21) from back to front, and the insertion rod (353) is inserted into a central hole of the pipe all the time;

when the pipe rolls on the rolling support platform (21), the spotlight (22) behind the rolling support platform (21) is shielded, the photosensitive sensor (23) behind the rolling support platform (21) is not triggered, when the bending part of the pipe cannot shield the spotlight (22), the photosensitive sensor (23) is triggered and sends a trigger signal to the control mechanism, and the control mechanism judges the bending part of the pipe;

C. straightening:

after judging the bent part of the pipe, the control mechanism converts the judged numerical value into a pulse signal, so as to control a servo motor (37) to rotate in the positive direction, a lead screw (32) is driven to rotate in the positive direction through a speed reducer (36), at the moment, a movable sliding block (34) moves leftwards, a fixed disc (352) pushes the pipe to a straightening plate (40) and inserts the pipe into a pressing claw (57) arranged on a straightening mechanism (5);

the control mechanism controls the hydraulic oil pump (56) to operate, the stroke end of the hydraulic cylinder (54) moves downwards, the pressure plate (58) is abutted against the bent convex part of the pipe and bends downwards under the supporting action of the straightening plates (40) on the left side and the right side of the pressure plate (58), and therefore the straightening effect is achieved;

the nut on the mounting bolt (59) is detached, so that the pressure plate (58) can be detached, and the pressure plate (58) is replaced;

D. and (4) retesting:

the control mechanism controls the hydraulic oil pump (56) to operate, the stroke end of the hydraulic cylinder (54) moves upwards, the pressure plate (58) leaves the pipe, the control mechanism controls the servo motor (37) to rotate reversely, the lead screw (32) is driven to rotate reversely through the speed reducer (36), the moving slide block (34) moves rightmost, at the moment, the inserting rod (353) pulls the pipe back to the rolling support platform (21), the step B is repeated, and the photosensitive sensor (23) is not triggered until the pipe rolls on the rolling support platform (21);

E. blanking:

when the pipe rolls on the rolling support table (21), the photosensitive sensor (23) is not triggered, namely the pipe does not need to be straightened;

the control mechanism controls the servo motor (37) to rotate in the positive direction, the lead screw (32) is driven to rotate in the positive direction through the speed reducer (36), at the moment, the movable sliding block (34) moves leftwards, and the fixed disc (352) completely pushes the pipe to the straightening plate (40);

the control mechanism controls the hydraulic oil pump (56) to operate, and enables the stroke end of the hydraulic cylinder (54) to move downwards, and the pressure plate (58) is abutted to the pipe;

the control mechanism controls the servo motor (37) to rotate reversely, the lead screw (32) is driven to rotate reversely through the speed reducer (36), the inserted rod (353) is pulled out from the central hole of the pipe, and the movable sliding block (34) moves rightmost to the right;

the control mechanism controls the hydraulic oil pump (56) to operate, and enables the stroke end of the hydraulic cylinder (54) to move upwards, and the pressure plate (58) leaves the pipe;

the pipe which is finished with the straightening process on the straightening plate (40) rolls forward to the blanking pulley (13), and at the moment, the pipe on the blanking pulley (13) moves in the left-right direction and is transferred to a finished product area.