CN103861917A - U-shaped furnace tube bending process adopting clamp position sensor and carrying out stress relief annealing - Google Patents
U-shaped furnace tube bending process adopting clamp position sensor and carrying out stress relief annealing Download PDFInfo
- Publication number
- CN103861917A CN103861917A CN201410131660.3A CN201410131660A CN103861917A CN 103861917 A CN103861917 A CN 103861917A CN 201410131660 A CN201410131660 A CN 201410131660A CN 103861917 A CN103861917 A CN 103861917A
- Authority
- CN
- China
- Prior art keywords
- fixture
- bending
- boiler tube
- dipper crowding
- crowding gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005452 bending Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000137 annealing Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000003754 machining Methods 0.000 claims abstract description 14
- 210000000245 forearm Anatomy 0.000 claims description 12
- 230000001960 triggered effect Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 7
- 230000005355 Hall effect Effects 0.000 claims description 6
- 230000005291 magnetic effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Clamps And Clips (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a U-shaped furnace tube bending process adopting a clamp position sensor and carrying out stress relief annealing. According to the U-shaped heating furnace tube bending machining process, furnace tube bending equipment is adopted and comprises a left rack and a pushing and pressing mechanism, the pushing and pressing mechanism is arranged on the right side of the left rack, a guide rod is fixedly arranged in the middle of the right side of the left rack, the guide rod horizontally extends in the left-and-right direction, the left end of the guide rod is fixedly connected with the left rack, the right end of the guide rod is in sliding connection with the middle of the pushing and pressing mechanism, and a channel which allows an original fed U-shaped furnace tube to pass and allows a discharged machined furnace tube to pass is arranged in the left rack. Three bending hydraulic devices are sequentially arranged at the position, between the left rack and the pushing and pressing mechanism, of the guide rod from left to right in a sliding mode.
Description
?
Technical field
The application relates to the making of heating furnace tube, is specially a kind of U-shaped heating furnace tube bending process.
Background technology
Heating furnace has a wide range of applications in industry, such as heating steel billet, heat treatment of workpieces etc.In order to increase the heating uniformity of heating furnace, heating furnace tube is often in a bent form.
In the prior art, in order to ensure the requirement to concrete heating furnace shape and to meet the requirement respectively of concrete heating heat, conventionally need to carry out to the shape of boiler tube the bending of concrete shape.For the bending of heating furnace tube, often adopt in the prior art stamping forming mode.This molding mode can efficiently be realized bending machining rapidly, and machining accuracy is high, and cost is lower, has in the prior art extensive use.But, this mode of heating easily produces significantly a large amount of inhomogeneous deformation on the longitudinal direction of heating furnace tube, cause the cross-sectional area of heating furnace tube on the longitudinal direction of boiler tube, to there is larger variation, this makes heating uniformity in heating process be difficult to control, and, easily in the process using, produce inhomogeneous stress and concentrate, thereby cause the stability in use of heating furnace, security greatly to reduce, and shortened the service life of heating furnace.
Also there is in the prior art the bending of use and roll the scheme that workpiece is bent.But, this scheme often adopts curved one by one bending to workpiece, because the longitudinal size of workpiece is larger, in the complete rotation process of workpiece, this processing often needs larger processing space, and, because process is to adopt curved one by one mode, process is longer, and working (machining) efficiency is lower, cause thus processing cost to rise, and be difficult to ensure the form accuracy of processing.
Summary of the invention
A kind of U-shaped heating furnace tube of the present invention bending process, it is intended to solve in prior art the defects such as machining deformation is inhomogeneous and process is long, form accuracy is low, and a kind of bending process of the heating furnace tube with concrete shape is provided.
The technical solution used in the present invention is as follows:
A kind of use chucking position detecting sensor also carries out the heat treated U-shaped furnace tubing of destressing bending machining technique, it uses a kind of crooking of the tubes equipment, described crooking of the tubes equipment comprises left frame and dipper crowding gear, dipper crowding gear is right-hand at left frame, centre position, right side place at described left frame is fixedly installed guide rod, guide rod is horizontal-extending on left and right directions, the left end of guide rod is fixedly connected with described left frame, the right-hand member of guide rod and the middle part of dipper crowding gear are slidably connected, in described left frame, be provided with the passage that passes and pass through for completing the boiler tube discharging of processing for original U-shaped boiler tube material loading, on described guide rod, between described left frame and dipper crowding gear, slide and be provided with three bending hydraulic means successively from left to right, the front portion, left side of dipper crowding gear is fixedly installed the first fixture, the rear portion, left side of dipper crowding gear is fixedly installed the second fixture, the front portion, right side of left frame is fixedly installed the 3rd fixture, the rear portion, right side of left frame is fixedly installed the 4th fixture, between described left frame and dipper crowding gear, be provided with fromer rail and rear rail, described fromer rail straight line between the 3rd fixture and the first fixture extends, and in the time that dipper crowding gear slides along described guide rod, the first fixture can slide towards the 3rd fixture along fromer rail, described rear rail straight line between the 4th fixture and the second fixture extends, and in the time that dipper crowding gear slides along described guide rod, the second fixture can slide towards the 4th fixture along rear rail, on described rear rail, between the 4th fixture and the second fixture, be also provided with slidably the 5th fixture and the 6th fixture, on described fromer rail, between the 3rd fixture and the first fixture, be also provided with slidably the 7th fixture and the 8th fixture, eight described fixtures include clip base, internal clamping block and outer fixture block, the described internal clamping block of each described fixture and outer fixture block all relatively arrange along the fore-and-aft direction in the plane of bending when the described boiler tube generation plain bending, and in clip base, can realize contact gripping and separate the action of unclamping, wherein, described internal clamping block is all between described fromer rail and rear rail, and be rectangular shape, described outer fixture block is all positioned at described fromer rail and rear rail outside, and be cylindrical shape, the plane of bending of the longitudinal axis of described rectangular shape and cylindrical shape during all perpendicular to described boiler tube generation plain bending, wherein, on the right flank of the internal clamping block of described the 3rd fixture and the 4th fixture, be provided with the right extension limited block extending to the right, on the left surface of the internal clamping block of described the first fixture and the second fixture, be provided with the left extension limited block extending to the left, on the left and right side of the internal clamping block of described the 5th fixture, the 6th fixture, the 7th fixture and the 8th fixture, be provided with respectively the left extension limited block extending to the left and the right extension limited block extending to the right.
The middle part of described three bending hydraulic means and described guide rod are slidably matched, each opposed front wheel driving hydraulic cylinder and rear drive hydraulic cylinder of including in described three bending hydraulic means, described front wheel driving hydraulic cylinder and rear drive hydraulic cylinder are symmetrical arranged with respect to the longitudinal axis of guide rod, the hydraulic stem end of described front wheel driving hydraulic cylinder is hinged with front curve and rolls, and front wheel driving hydraulic cylinder can drive front curve is rolled to the bend pipe thrust applying forward along the direction vertical with guide rod, the hydraulic stem end of described rear drive hydraulic cylinder is hinged with rear bending and rolls, and rear drive hydraulic cylinder can drive rear bending is rolled to the bend pipe thrust applying backward along the direction vertical with guide rod, each walking driving mechanism that all also comprises in described three bending hydraulic means, in order to drive respectively corresponding bending hydraulic means to slide into diverse location along guide rod.
The right side of described dipper crowding gear is provided with front support rod telescoping mechanism and back support rod telescoping mechanism, front support rod telescoping mechanism and back support rod telescoping mechanism arrange symmetrically about the longitudinal axis of described guide rod, front support rod telescoping mechanism has front stretching support bar, front stretching support bar extend in described boiler tube through leaving the left side of dipper crowding gear and can be used in from the right side of dipper crowding gear, thereby play support boiler tube and prevent that boiler tube from occurring not expect bending effect, and can under the driving of front support rod telescoping mechanism, on left and right directions, move back and forth; Back support rod telescoping mechanism has rear retractility support bar, rear retractility support bar extend in described boiler tube through leaving the left side of dipper crowding gear and can be used in from the right side of dipper crowding gear, thereby play support boiler tube and prevent that boiler tube from occurring not expect bending effect, and can under the driving of back support rod telescoping mechanism, on left and right directions, move back and forth.
Described crooking of the tubes technique comprises the steps:
A., U-shaped boiler tube is provided;
B. two arms of described U-shaped boiler tube penetrated respectively to the described passage on described left frame and advance to the right, until the part that described U-shaped boiler tube will be processed stretches out in described left frame;
C. described the second fixture and the 4th fixture clamp two arms of described U-shaped boiler tube respectively;
D. dipper crowding gear motion, to make the first fixture and the second fixture clamp respectively the end of two arms of U-shaped boiler tube;
E. the 5th fixture and the 6th fixture clamp the postbrachium of U-shaped boiler tube between the 4th fixture and the second fixture, and make the 4th fixture, the 5th fixture, the 6th fixture and the second fixture that the described postbrachium of U-shaped boiler tube is separated into three length sections equal in length; The 7th fixture and the 8th fixture clamp the forearm of U-shaped boiler tube between the second fixture and the first fixture, and make the second fixture, the 7th fixture, the 8th fixture and the first fixture that the described forearm of U-shaped boiler tube is separated into three length sections equal in length; On described fromer rail and rear rail, be all fixedly installed left chucking position detecting sensor and right chucking position detecting sensor, wherein, thereby the left chucking position detecting sensor of described fromer rail sends signal with it to being at once triggered when the position of the 7th fixture, thereby the position that the right chucking position detecting sensor of described fromer rail ought the 8th fixture and its send signal to being at once triggered; Thereby the left chucking position detecting sensor of described rear rail sends signal with it to being at once triggered when the position of the 5th fixture, thereby the position that the right chucking position detecting sensor of described rear rail ought the 6th fixture and its send signal to being at once triggered; Described chucking position detecting sensor on front and rear guide rail is positioned on guide rail separately contribute to realize that the corresponding processing sections of boiler tube is divided into location aware sensor described in described three length sections equal in length can be hall effect sensor and magnetic effect sensor, or can one be hall effect sensor, another is magnetic effect sensor;
F. the each mid point that makes its front and rear curved roll, contact respectively corresponding each length section in described three length sections on described forearm and postbrachium in described three bending hydraulic means;
G. the back support rod telescoping mechanism of dipper crowding gear and front support rod telescoping mechanism stretch into rear retractility support bar and front stretching support bar respectively in the described postbrachium of U-shaped boiler tube and the pipe of forearm accordingly, and it is not supported to leave first length section from left to right in described three length sections of each arm, from left to right second and the 3rd length section supported;
H. each bending of the bending hydraulic means in left side is rolled and is synchronously started outwards described first length section of top pressure, thereby make it that U-bend song occur, dipper crowding gear is synchronously followed pushing along with the carrying out of bending, meanwhile, the 5th fixture, the 6th fixture, the 7th fixture, the also synchronously accompany movement of the 8th fixture; In the process of pressing on top, the bending hydraulic means in left side to left movement, keeps corresponding to the position of described first length section mid point thereby its bending is rolled under the driving of its walking driving mechanism; When to the right extension limited block of the 4th fixture, and the left extension limited block of the 5th fixture contacts and the right extension limited block of the first fixture and the left extension limited block of the 7th fixture contact, each bending of the bending hydraulic means in described left side is rolled and is stopped top pressure, and dipper crowding gear stops continuing pushing forward;
I. the back support rod telescoping mechanism of dipper crowding gear and front support rod telescoping mechanism bounce back rear retractility support bar and front stretching support bar respectively accordingly, thereby make to stay first length section from left to right in described three length sections of each arm and second length section is all not supported from left to right, the 3rd length section is supported from left to right;
J. the bending hydraulic means in the middle of start top press described in second length section from left to right, until the right extension limited block of the 5th fixture and the left extension limited block of the 6th fixture contacts and the right extension limited block of the 7th fixture and the left extension limited block of the 8th fixture contact;
K. dipper crowding gear makes described support bar, bounces back completely, so that the 3rd length section is not supported from left to right;
L. the bending hydraulic means on right side start top press described in the 3rd length section from left to right, until the right extension limited block of the 6th fixture and the left extension limited block of the second fixture contacts and the right extension limited block of the 8th fixture and the left extension limited block of the first fixture contact;
M. each fixture unclamps, and takes the complete heating furnace tube of bending machining away;
N. heating furnace tube complete bending machining is put into destressing heat-treatment furnace and carry out stress relief annealing, for example, the process conditions of annealing can be: holding temperature degree Celsius, temperature retention time hour.
In the present invention, on each fixture, adopt extension limited block, thereby made, after limited block contact, can carry out a locking to the shape of moulding, under the effect of follow-up elaboration power, can not impact the shape after precise forming, be cuboid while be columniform fixture and adopted, when having made to ensure enough clamping forces, can form level and smooth flexural deformation to the boiler tube being shaped again, whole process, on one side in longitudinal direction feeding, utilize bending to roll on one side and do to carry out bending, therefore, it has avoided on the longitudinal direction of boiler tube, producing at processed bending position in prior art the problem of larger linear deformation, and, in process, it adopts unique form processing, feeding on one side, bending is rolled in vertical longitudinal direction and is moved and move in parallel longitudinal direction direction, thereby the relative position relation with institute's crooked position is rolled in maintenance bending, and boiler tube is longitudinally sent under the integrated moving of other clamping devices, therefore, ensure boiler tube entirety to keep longitudinal direction and by curved bending one by one, whole BENDING PROCESS is continuous, without repeating, boiler tube is carried out to clamping and dismounting, make whole process processing space little, process is short and ensured the form accuracy of processing.And multiple fixtures can slide in process, ensure all the time boiler tube to be had the locking of clamping position in process.
Brief description of the drawings
Fig. 1 is the schematic top plan view of bending apparatus of the present invention.
Fig. 2 is the schematic top plan view of bending apparatus after the crooking of the tubes is completed in Fig. 1 of the present invention.
Fig. 3 is the schematic top plan view of the boiler tube shape after bending completes.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-3, the present invention is described in detail.
A kind of use chucking position detecting sensor also carries out the heat treated U-shaped furnace tubing of destressing bending machining technique, it uses a kind of crooking of the tubes equipment, described crooking of the tubes equipment comprises left frame 13 and dipper crowding gear 10, dipper crowding gear 10 is right-hand at left frame 13, centre position, right side place at described left frame 13 is fixedly installed guide rod 15, guide rod 15 horizontal-extending on left and right directions, the left end of guide rod 15 is fixedly connected with described left frame 13, the middle part of the right-hand member of guide rod 15 and dipper crowding gear 10 is slidably connected, in described left frame 13, be provided with the passage that passes and pass through for completing the boiler tube discharging of processing for original U-shaped boiler tube material loading, on described guide rod 15, between described left frame 13 and dipper crowding gear 10, slide and be provided with three bending hydraulic means 9 successively from left to right, the front portion, left side of dipper crowding gear 10 is fixedly installed the first fixture 1, the rear portion, left side of dipper crowding gear 10 is fixedly installed the second fixture 5, the front portion, right side of left frame 13 is fixedly installed the 3rd fixture 4, the rear portion, right side of left frame 13 is fixedly installed the 4th fixture 8, between described left frame 13 and dipper crowding gear 10, be provided with fromer rail and rear rail, described fromer rail straight line between the 3rd fixture 4 and the first fixture 1 extends, and in the time that dipper crowding gear 10 slides along described guide rod 15, the first fixture 1 can slide towards the 3rd fixture 4 along fromer rail, described rear rail straight line between the 4th fixture 8 and the second fixture 5 extends, and in the time that dipper crowding gear 10 slides along described guide rod 15, the second fixture 5 can slide towards the 4th fixture 8 along rear rail, on described rear rail, between the 4th fixture 8 and the second fixture 5, be also provided with slidably the 5th fixture 7 and the 6th fixture 6, on described fromer rail, between the 3rd fixture 4 and the first fixture 1, be also provided with slidably the 7th fixture 3 and the 8th fixture 2, eight described fixtures 1, 2, 3, 4, 5, 6, 7, 8 include clip base, internal clamping block 81, 41 and outer fixture block 82, 42, the described internal clamping block 81 of each described fixture, 41 and outer fixture block 82, 42 all relatively arrange along the fore-and-aft direction in the plane of bending when the described boiler tube generation plain bending, and in clip base, can realize contact gripping and separate the action of unclamping, wherein, described internal clamping block 81, 41 all between described fromer rail and rear rail, and be rectangular shape, described outer fixture block 82, 42 are all positioned at described fromer rail and rear rail outside, and be cylindrical shape, the plane of bending of the longitudinal axis of described rectangular shape and cylindrical shape during all perpendicular to described boiler tube generation plain bending, wherein, on the right flank of the internal clamping block of described the 3rd fixture 4 and the 4th fixture 8, be provided with the right extension limited block 83,43 extending to the right, on the left surface of the internal clamping block of described the first fixture 1 and the second fixture 5, be provided with the left extension limited block 54,14 extending to the left, on the left and right side of the internal clamping block of described the 5th fixture 7, the 6th fixture 6, the 7th fixture 3 and the 8th fixture 2, be provided with respectively the left extension limited block extending to the left and the right extension limited block extending to the right.
The middle part of described three bending hydraulic means 9 and described guide rod 15 are slidably matched, each opposed front wheel driving hydraulic cylinder and rear drive hydraulic cylinder of including in described three bending hydraulic means 9, described front wheel driving hydraulic cylinder and rear drive hydraulic cylinder are symmetrical arranged with respect to the longitudinal axis of guide rod 15, the hydraulic stem end of described front wheel driving hydraulic cylinder is hinged with front curve and rolls 91, and front wheel driving hydraulic cylinder can drive front curve is rolled to the 91 bend pipe thrusts that apply forward along the direction vertical with guide rod 15, the hydraulic stem end of described rear drive hydraulic cylinder is hinged with rear bending and rolls 90, and rear drive hydraulic cylinder can drive rear bending is rolled to the 91 bend pipe thrusts that apply backward along the direction vertical with guide rod 15, each walking driving mechanism that all also comprises in described three bending hydraulic means 9, in order to drive respectively corresponding bending hydraulic means 9 to slide into diverse location along guide rod 15.
The right side of described dipper crowding gear 10 is provided with front support rod telescoping mechanism 12 and back support rod telescoping mechanism 11, front support rod telescoping mechanism 12 and back support rod telescoping mechanism 11 arrange symmetrically about the longitudinal axis of described guide rod 15, front support rod telescoping mechanism 12 has front stretching support bar 120, front stretching support bar 120 extend in described boiler tube through leaving the left side of dipper crowding gear 10 and can be used in from the right side of dipper crowding gear 10, thereby play support boiler tube and prevent that boiler tube from bending effect occurring not expect, and can under the driving of front support rod telescoping mechanism 12, on left and right directions, move back and forth, back support rod telescoping mechanism 11 has rear retractility support bar 110, rear retractility support bar 110 extend in described boiler tube through leaving the left side of dipper crowding gear 10 and can be used in from the right side of dipper crowding gear 10, thereby play support boiler tube and prevent that boiler tube from occurring not expect bending effect, and can under the driving of back support rod telescoping mechanism 11, on left and right directions, move back and forth.
Described crooking of the tubes technique comprises the steps:
A., U-shaped boiler tube 19 is provided;
B. two arms of described U-shaped boiler tube penetrated respectively to the described passage on described left frame 13 and advance to the right, until the part that described U-shaped boiler tube will be processed stretches out in described left frame 13;
C. described the second fixture 4 and the 4th fixture 8 clamp two arms of described U-shaped boiler tube respectively;
D. dipper crowding gear 10 moves, to make the first fixture 1 and the second fixture 5 clamp respectively the end of two arms of U-shaped boiler tube;
E. the 5th fixture 7 and the 6th fixture 6 clamp the postbrachium of U-shaped boiler tube between the 4th fixture 8 and the second fixture 5, and make the 4th fixture 8, the 5th fixture 7, the 6th fixture 6 and the second fixture 5 that the described postbrachium of U-shaped boiler tube is separated into three length sections equal in length; The 7th fixture 3 and the 8th fixture 2 clamp the forearm of U-shaped boiler tube between the second fixture 4 and the first fixture 1, and make the second fixture 4, the 7th fixture 3, the 8th fixture 2 and the first fixture 1 that the described forearm of U-shaped boiler tube is separated into three length sections equal in length; On described fromer rail and rear rail, be all fixedly installed left chucking position detecting sensor and right chucking position detecting sensor, wherein, thereby the left chucking position detecting sensor of described fromer rail sends signal with it to being at once triggered when the position of the 7th fixture 3, thereby the position that the right chucking position detecting sensor of described fromer rail ought the 8th fixture 2 and its send signal to being at once triggered; Thereby the left chucking position detecting sensor of described rear rail sends signal with it to being at once triggered when the position of the 5th fixture 7, thereby the position that the right chucking position detecting sensor of described rear rail ought the 6th fixture 6 and its send signal to being at once triggered; Described chucking position detecting sensor on front and rear guide rail is positioned on guide rail separately contribute to realize that the corresponding processing sections of boiler tube is divided into location aware sensor described in described three length sections equal in length can be hall effect sensor and magnetic effect sensor, or can one be hall effect sensor, another is magnetic effect sensor;
F. the each mid point that makes its front and rear curved roll corresponding each length section in 91,90 described three length sections that contact respectively on described forearm and postbrachium in described three bending hydraulic means 9;
G. the back support rod telescoping mechanism 11 of dipper crowding gear 10 and front support rod telescoping mechanism 12 stretch into rear retractility support bar 110 and front stretching support bar 120 respectively in the described postbrachium of U-shaped boiler tube and the pipe of forearm accordingly, and it is not supported to leave first length section from left to right in described three length sections of each arm, from left to right second and the 3rd length section supported;
H. each bending of the bending hydraulic means 9 in left side is rolled and is synchronously started outwards described first length section of top pressure, thereby make it that U-bend song occur, dipper crowding gear 10 carrying out along with bending and synchronously follow pushing, meanwhile, the 5th fixture 7, the 6th fixture 6, the 7th fixture 3, the also synchronously accompany movement of the 8th fixture 2; In the process of pressing on top, the bending hydraulic means 9 in left side to left movement, keeps corresponding to the position of described first length section mid point thereby its bending is rolled under the driving of its walking driving mechanism; When to the right extension limited block 83 of the 4th fixture 8, and the left extension limited block of the 5th fixture 7 contacts and the right extension limited block 43 of the first fixture 4 and the left extension limited block of the 7th fixture 3 contact, each bending of the bending hydraulic means 9 in described left side is rolled and is stopped top pressure, and dipper crowding gear 10 stops continuing pushing forward;
I. the back support rod telescoping mechanism 11 of dipper crowding gear 10 and front support rod telescoping mechanism 12 bounce back rear retractility support bar 110 and front stretching support bar 120 respectively accordingly, thereby make to stay first length section from left to right in described three length sections of each arm and second length section is all not supported from left to right, the 3rd length section is supported from left to right;
J. the bending hydraulic means 9 in the middle of start top press described in second length section from left to right, until the right extension limited block of the 5th fixture 7 and the left extension limited block of the 6th fixture 6 contacts and the right extension limited block of the 7th fixture 3 and the left extension limited block of the 8th fixture 2 contact;
K. dipper crowding gear 10 bounces back described support bar 110,120 completely, so that the 3rd length section is not supported from left to right;
L. the bending hydraulic means 9 on right side start top press described in the 3rd length section from left to right, until the right extension limited block of the 6th fixture 6 and the left extension limited block of the second fixture 5 contacts and the right extension limited block of the 8th fixture 2 and the left extension limited block of the first fixture 1 contact;
M. each fixture unclamps, and takes the complete heating furnace tube of bending machining away;
N. heating furnace tube complete bending machining is put into destressing heat-treatment furnace and carry out stress relief annealing, for example, the process conditions of annealing can be: 300 degrees Celsius of holding temperatures, temperature retention time 3 hours.
Claims (1)
1. one kind uses chucking position detecting sensor and carries out the heat treated U-shaped furnace tubing of destressing bending machining technique, it uses a kind of crooking of the tubes equipment, described crooking of the tubes equipment comprises left frame (13) and dipper crowding gear (10), dipper crowding gear (10) is right-hand at left frame (13), centre position, right side place at described left frame (13) is fixedly installed guide rod (15), guide rod (15) horizontal-extending on left and right directions, the left end of guide rod (15) is fixedly connected with described left frame (13), the middle part of the right-hand member of guide rod (15) and dipper crowding gear (10) is slidably connected, in described left frame (13), be provided with the passage that passes and pass through for completing the boiler tube discharging of processing for original U-shaped boiler tube material loading, described guide rod (15) is upper to slide and is provided with three bending hydraulic means (9) successively from left to right between described left frame (13) and dipper crowding gear (10), the front portion, left side of dipper crowding gear (10) is fixedly installed the first fixture (1), the rear portion, left side of dipper crowding gear (10) is fixedly installed the second fixture (5), the front portion, right side of left frame (13) is fixedly installed the 3rd fixture (4), the rear portion, right side of left frame (13) is fixedly installed the 4th fixture (8), between described left frame (13) and dipper crowding gear (10), be provided with fromer rail and rear rail, described fromer rail straight line between the 3rd fixture (4) and the first fixture (1) extends, and in the time that dipper crowding gear (10) slides along described guide rod (15), the first fixture (1) can slide towards the 3rd fixture (4) along fromer rail, described rear rail straight line between the 4th fixture (8) and the second fixture (5) extends, and in the time that dipper crowding gear (10) slides along described guide rod (15), the second fixture (5) can slide towards the 4th fixture (8) along rear rail, on described rear rail, between the 4th fixture (8) and the second fixture (5), be also provided with slidably the 5th fixture (7) and the 6th fixture (6), on described fromer rail, between the 3rd fixture (4) and the first fixture (1), be also provided with slidably the 7th fixture (3) and the 8th fixture (2), eight described fixtures (1, 2, 3, 4, 5, 6, 7, 8) include clip base, internal clamping block (81, 41) and outer fixture block (82, 42), the described internal clamping block (81 of each described fixture, 41) and outer fixture block (82, 42) all relatively arrange along the fore-and-aft direction in the plane of bending when the described boiler tube generation plain bending, and in clip base, can realize contact gripping and separate the action of unclamping, wherein, described internal clamping block (81, 41) all between described fromer rail and rear rail, and be rectangular shape, described outer fixture block (82, 42) be all positioned at described fromer rail and rear rail outside, and be cylindrical shape, the plane of bending of the longitudinal axis of described rectangular shape and cylindrical shape during all perpendicular to described boiler tube generation plain bending, wherein, on the right flank of the internal clamping block of described the 3rd fixture (4) and the 4th fixture (8), be provided with the right extension limited block (83,43) extending to the right, on the left surface of the internal clamping block of described the first fixture (1) and the second fixture (5), be provided with the left extension limited block (54,14) extending to the left, on the left and right side of the internal clamping block of described the 5th fixture (7), the 6th fixture (6), the 7th fixture (3) and the 8th fixture (2), be provided with respectively the left extension limited block extending to the left and the right extension limited block extending to the right,
The middle part of described three bending hydraulic means (9) and described guide rod (15) are slidably matched, each opposed front wheel driving hydraulic cylinder and rear drive hydraulic cylinder of including in described three bending hydraulic means (9), described front wheel driving hydraulic cylinder and rear drive hydraulic cylinder are symmetrical arranged with respect to the longitudinal axis of guide rod (15), the hydraulic stem end of described front wheel driving hydraulic cylinder is hinged with front curve and rolls (91), and front wheel driving hydraulic cylinder can roll (91) to front curve along the direction driving vertical with guide rod (15) and apply bend pipe thrust forward, the hydraulic stem end of described rear drive hydraulic cylinder is hinged with rear bending and rolls (90), and rear drive hydraulic cylinder can roll (91) to rear bending along the direction driving vertical with guide rod (15) and apply bend pipe thrust backward, each walking driving mechanism that all also comprises in described three bending hydraulic means (9), in order to drive respectively corresponding bending hydraulic means (9) to slide into diverse location along guide rod (15),
The right side of described dipper crowding gear (10) is provided with front support rod telescoping mechanism (12) and back support rod telescoping mechanism (11), front support rod telescoping mechanism (12) and back support rod telescoping mechanism (11) arrange symmetrically about the longitudinal axis of described guide rod (15), front support rod telescoping mechanism (12) has front stretching support bar (120), front stretching support bar (120) extend in described boiler tube through leaving the left side of dipper crowding gear (10) and can be used in from the right side of dipper crowding gear (10), thereby play support boiler tube and prevent that boiler tube from bending effect occurring not expect, and can under the driving of front support rod telescoping mechanism (12), on left and right directions, move back and forth, back support rod telescoping mechanism (11) has rear retractility support bar (110), rear retractility support bar (110) extend in described boiler tube through leaving the left side of dipper crowding gear (10) and can be used in from the right side of dipper crowding gear (10), thereby play support boiler tube and prevent that boiler tube from occurring not expect bending effect, and can under the driving of back support rod telescoping mechanism (11), on left and right directions, move back and forth,
Described crooking of the tubes technique comprises the steps:
A., U-shaped boiler tube (19) is provided;
B. two arms of described U-shaped boiler tube penetrated respectively to the described passage on described left frame (13) and advance to the right, until the part that described U-shaped boiler tube will be processed stretches out in described left frame (13);
C. described the second fixture (4) and the 4th fixture (8) clamp two arms of described U-shaped boiler tube respectively;
D. dipper crowding gear (10) motion, to make the first fixture (1) and the second fixture (5) clamp respectively the end of two arms of U-shaped boiler tube;
E. the 5th fixture (7) and the 6th fixture (6) clamp the postbrachium of U-shaped boiler tube between the 4th fixture (8) and the second fixture (5), and make the 4th fixture (8), the 5th fixture (7), the 6th fixture (6) and the second fixture (5) that the described postbrachium of U-shaped boiler tube is separated into three length sections equal in length; The 7th fixture (3) and the 8th fixture (2) clamp the forearm of U-shaped boiler tube between the second fixture (4) and the first fixture (1), and make the second fixture (4), the 7th fixture (3), the 8th fixture (2) and the first fixture (1) that the described forearm of U-shaped boiler tube is separated into three length sections equal in length; On described fromer rail and rear rail, be all fixedly installed left chucking position detecting sensor and right chucking position detecting sensor, wherein, the left chucking position detecting sensor of described fromer rail when the 7th fixture (3) thus position send signal with it to being at once triggered, the right chucking position detecting sensor of described fromer rail ought the 8th fixture (2) thus position and its send signal to being at once triggered; The left chucking position detecting sensor of described rear rail when the 5th fixture (7) thus position send signal with it to being at once triggered, the right chucking position detecting sensor of described rear rail ought the 6th fixture (6) thus position and its send signal to being at once triggered; Described chucking position detecting sensor on front and rear guide rail is positioned to contribute to realization that the corresponding processing sections of boiler tube is divided into described three length sections equal in length on guide rail separately, and (described location aware sensor can be hall effect sensor and magnetic effect sensor, or can one be hall effect sensor, another is magnetic effect sensor);
F. each in described three bending hydraulic means (9) makes its front and rear curved roll (91,90) to contact respectively the mid point of corresponding each length section in described three length sections on described forearm and postbrachium;
G. the back support rod telescoping mechanism (11) of dipper crowding gear (10) and front support rod telescoping mechanism (12) stretch into rear retractility support bar (110) and front stretching support bar (120) respectively in the described postbrachium of U-shaped boiler tube and the pipe of forearm accordingly, and it is not supported to leave first length section from left to right in described three length sections of each arm, from left to right second and the 3rd length section supported;
H. each bending of the bending hydraulic means (9) in left side is rolled and is synchronously started outwards described first length section of top pressure, thereby make it that U-bend song occur, dipper crowding gear (10) is synchronously followed pushing along with the carrying out of bending, meanwhile, the 5th fixture (7), the 6th fixture (6), the 7th fixture (3), the 8th also synchronously accompany movement of fixture (2); In the process of pressing on top, the bending hydraulic means (9) in left side to left movement, keeps corresponding to the position of described first length section mid point thereby its bending is rolled under the driving of its walking driving mechanism; Contact with the left extension limited block of the 5th fixture (7) and when the right extension limited block (43) of the first fixture (4) contacts with the left extension limited block of the 7th fixture (3) to the right extension limited block (83) of the 4th fixture (8), each bending of the bending hydraulic means (9) in described left side is rolled and is stopped top pressure, and dipper crowding gear (10) stops continuing pushing forward;
I. the back support rod telescoping mechanism (11) of dipper crowding gear (10) and front support rod telescoping mechanism (12) bounce back rear retractility support bar (110) and front stretching support bar (120) respectively accordingly, thereby make to stay first length section from left to right in described three length sections of each arm and second length section is all not supported from left to right, the 3rd length section is supported from left to right;
J. the bending hydraulic means (9) in the middle of start top press described in second length section from left to right, until the right extension limited block of the 5th fixture (7) contacts with the left extension limited block of the 6th fixture (6) and the right extension limited block of the 7th fixture (3) contacts with the left extension limited block of the 8th fixture (2);
K. dipper crowding gear (10) bounces back described support bar (110,120) completely, so that the 3rd length section is not supported from left to right;
L. the bending hydraulic means (9) on right side start top press described in the 3rd length section from left to right, until the right extension limited block of the 6th fixture (6) and the left extension limited block of the second fixture (5) contacts and the right extension limited block of the 8th fixture (2) and the left extension limited block of the first fixture (1) contact;
M. each fixture unclamps, and takes the complete heating furnace tube of bending machining away;
N. heating furnace tube complete bending machining is put into destressing heat-treatment furnace and carry out stress relief annealing, for example, the process conditions of annealing can be: 300 degrees Celsius of holding temperatures, temperature retention time 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131660.3A CN103861917B (en) | 2014-04-03 | 2014-04-03 | The U-shaped crooking of the tubes technique of stress relief annealing is carried out with chucking position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131660.3A CN103861917B (en) | 2014-04-03 | 2014-04-03 | The U-shaped crooking of the tubes technique of stress relief annealing is carried out with chucking position sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103861917A true CN103861917A (en) | 2014-06-18 |
| CN103861917B CN103861917B (en) | 2015-12-02 |
Family
ID=50901272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410131660.3A Expired - Fee Related CN103861917B (en) | 2014-04-03 | 2014-04-03 | The U-shaped crooking of the tubes technique of stress relief annealing is carried out with chucking position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103861917B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749535A (en) * | 2022-06-16 | 2022-07-15 | 太原市跃科科技有限公司 | Automatic multistage bending forming equipment of electric heating element pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451254Y (en) * | 2000-10-09 | 2001-10-03 | 独山子炼油化工建设(集团)有限公司 | 'U' shape tube continuous bending machine |
| US20050235720A1 (en) * | 2004-04-23 | 2005-10-27 | Teruaki Yogo | Bending device |
| CN2850747Y (en) * | 2005-12-22 | 2006-12-27 | 和和机械股份有限公司 | Tube bending machine with both rightward and leftward tube-bending function |
| CN101664779A (en) * | 2009-09-18 | 2010-03-10 | 张明放 | Electrical heating tube plane numerical controlled tube bending method and numerical controlled bending device using same |
| CN102139301A (en) * | 2010-12-09 | 2011-08-03 | 中山市奥美森工业有限公司 | Long U-shaped tube bender |
| CN203292343U (en) * | 2013-06-24 | 2013-11-20 | 重庆中瑞鑫安实业有限公司 | Bending and binding machine |
-
2014
- 2014-04-03 CN CN201410131660.3A patent/CN103861917B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451254Y (en) * | 2000-10-09 | 2001-10-03 | 独山子炼油化工建设(集团)有限公司 | 'U' shape tube continuous bending machine |
| US20050235720A1 (en) * | 2004-04-23 | 2005-10-27 | Teruaki Yogo | Bending device |
| CN2850747Y (en) * | 2005-12-22 | 2006-12-27 | 和和机械股份有限公司 | Tube bending machine with both rightward and leftward tube-bending function |
| CN101664779A (en) * | 2009-09-18 | 2010-03-10 | 张明放 | Electrical heating tube plane numerical controlled tube bending method and numerical controlled bending device using same |
| CN102139301A (en) * | 2010-12-09 | 2011-08-03 | 中山市奥美森工业有限公司 | Long U-shaped tube bender |
| CN203292343U (en) * | 2013-06-24 | 2013-11-20 | 重庆中瑞鑫安实业有限公司 | Bending and binding machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749535A (en) * | 2022-06-16 | 2022-07-15 | 太原市跃科科技有限公司 | Automatic multistage bending forming equipment of electric heating element pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103861917B (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103878214B (en) | U-shaped furnace tube bend for conducting stress relief annealing and heating fluid heating | |
| CN103861915B (en) | Range sensor is rolled and the U-shaped crooking of the tubes technique of pressurize sizing with bending | |
| CN103861908B (en) | With chucking position sensor and the bending U-shaped pipe bending process rolling range sensor | |
| CN103861917B (en) | The U-shaped crooking of the tubes technique of stress relief annealing is carried out with chucking position sensor | |
| CN103878220B (en) | U-shaped heating furnace tube bend process for conducting heating fluid heating and pressure maintaining forming | |
| CN103861909B (en) | With bending roll range sensor and destressing heat treated U-shaped crooking of the tubes technique | |
| CN103861920B (en) | U-shaped furnace tube bending process adopting clamp rail locking mechanism and carrying out distressing heat treatment | |
| CN103861922B (en) | Use the U-shaped crooking of the tubes technique of fixture lock rail mechanism and chucking position sensor | |
| CN103878222B (en) | Use chucking position sensor and the U-shaped crooking of the tubes technique of pressurize sizing | |
| CN103920766B (en) | With chucking position sensor and with the U-shaped crooking of the tubes technique adding hot fluid heats | |
| CN103861921B (en) | Carry out destressing heat treatment and carry out ejecting the U-shaped crooking of the tubes technique of the material returned | |
| CN103934327B (en) | By fixture lock rail mechanism and bending U-shaped crooking of the tubes technique of rolling range sensor | |
| CN103861919B (en) | Carry out destressing heat treatment and the U-shaped crooking of the tubes technique of pressurize sizing | |
| CN103894463B (en) | Lock rail mechanism with fixture and carry out the U-shaped crooking of the tubes technique of pressurize sizing | |
| CN103861910B (en) | Use chucking position sensor and eject the U-shaped crooking of the tubes technique of the material returned | |
| CN103861916B (en) | Lock rail mechanism with fixture and carry out the U-shaped crooking of the tubes technique of heating fluid heating | |
| CN103878219B (en) | Lock rail mechanism with fixture and carry out the U-shaped crooking of the tubes technique ejecting the material returned | |
| CN103878221B (en) | Range sensor is rolled and with the U-shaped crooking of the tubes technique adding hot fluid heats with bending | |
| CN103861918B (en) | Range sensor is rolled and the U-shaped crooking of the tubes technique carrying out ejecting the material returned with bending | |
| CN103894462B (en) | Carry out pressurize sizing and carry out ejecting the U-shaped crooking of the tubes technique of the material returned | |
| CN103934334A (en) | Linear type heating furnace tube bending technology | |
| CN103934333A (en) | Linear type heating furnace tube bending technology | |
| CN103962428A (en) | Technology for bending linear furnace tube of heating furnace | |
| CN103934330A (en) | Linear type heating furnace tube bending technology | |
| CN103934335A (en) | Linear type heating furnace tube bending technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Gang Inventor before: Wang Hui |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151028 Address after: Huan East Street Zhejiang Daikin village 311899 city of Shaoxing province Zhuji City, No. 186 Applicant after: Wu Gang Address before: 311826, Shaoxing, Zhejiang province Zhuji City Nguyen Town, village package No. 332 Applicant before: Wang Hui |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jiajun Inventor before: Wu Gang |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151230 Address after: 300220 Tianjin city Hexi District chentangzhuang Steel No. 112 dormitory Patentee after: Tianjin City British Machinery Co., Ltd. Address before: Huan East Street Zhejiang Daikin village 311899 city of Shaoxing province Zhuji City, No. 186 Patentee before: Wu Gang |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fu Zhixiang Inventor before: Zhang Jiajun |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160722 Address after: Tianjin City, No. 2, 300000 - 101 Deshang Patentee after: Tianjin Annan Technology Co., Ltd. Address before: 300220 Tianjin city Hexi District chentangzhuang Steel No. 112 dormitory Patentee before: Tianjin City British Machinery Co., Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lv Cuiwei Inventor after: Han Xiuyan Inventor after: Zhang Qing Inventor before: Fu Zhixiang |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170307 Address after: 154104 Hegang city of Heilongjiang province Nanshan District Darui community 57 Commission 10 group Patentee after: Lv Cuiwei Patentee after: Han Xiuyan Patentee after: Zhang Qing Address before: Tianjin City, No. 2, 300000 - 101 Deshang Patentee before: Tianjin Annan Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180425 Address after: 225300 Shunda Road, Xinghua science and Technology Industrial Park, Xinghua, Taizhou, Jiangsu Patentee after: XINGHUA JINGRUI MACHINERY CO., LTD. Address before: 154104 Heilongjiang Hegang Nanshan District 57 community committee 10 Co-patentee before: Han Xiuyan Patentee before: Lv Cuiwei Co-patentee before: Zhang Qing |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20200403 |