CN110976577A

CN110976577A - Pipe bending device for machining

Info

Publication number: CN110976577A
Application number: CN201911314802.9A
Authority: CN
Inventors: 马书文; 黄优; 王洪波
Original assignee: Individual
Current assignee: Jinan Lanxin Auto Parts Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-04-10
Anticipated expiration: 2039-12-19
Also published as: CN110976577B

Abstract

The invention discloses a pipe bending device for machining, which comprises a base, a pre-bending assembly, a conveying assembly and a grinding and bending assembly, the pre-bending assembly, the conveying assembly and the polishing and bending assembly are all arranged on the base, the pre-bending assembly can be used for carrying out preliminary bending and heating pretreatment on the pipe, the movement track of the conveying assembly is arc-shaped, and the device can convey the pre-processing piece processed by the pre-bending component to the polishing and bending component for polishing and bending, so as to ensure the smooth proceeding of subsequent installation, and the device adopts two feeding driving rollers to move the pipe along the bending direction of the bending cylinder to enter the bending cylinder, the pipe is slowly bent in the moving process, and the induction coil is adopted to heat the pipe, so that the stretchability of the pipe is improved, the occurrence of fracture is reduced, and the subsequent processing is facilitated.

Description

Pipe bending device for machining

Technical Field

The invention relates to the technical field of pipe bending, in particular to a pipe bending device for machining.

Background

The pipe bending part has extensive application in mechanical manufacturing, including being applied to chemical industry, car, space flight and so on, therefore the pipe processingequipment is also diversified, in order to deal with multiple pipe processing requirement, when pipe is bending, the metal at the pipe back is stretched, the pipe wall attenuation, the metal of its inboard can be compressed, the pipe wall thickening then can influence follow-up installation, and, current bending all often does not have the pretreatment, direct cold bending promptly, it can have certain fracture probability, influence holistic quality.

Accordingly, one skilled in the art provides a pipe bending apparatus for machining to solve the problems set forth in the background art described above.

Disclosure of Invention

The present invention is directed to a tube bending device for machining that solves the problems set forth in the background above.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a tubular product bending apparatus for machining, its includes base, the subassembly of bending in advance, conveying component and the subassembly of bending of polishing all set up on the base, the subassembly of bending in advance can tentatively bend and heat preliminary treatment to tubular product, conveying component's movement track is the arc, and it can be with the pretreatment piece after the subassembly processing of bending in advance carry to polish in the subassembly of bending of polishing and bend the processing.

Further, as preferred, the subassembly of bending in advance includes pan feeding drive roller and a section of thick bamboo of bending, a section of thick bamboo of bending adopts a plurality of support columns to fix on the base, a section of thick bamboo of bending wholly is the arc, and its tip longitudinal symmetry is provided with the pan feeding drive roller, the pan feeding drive roller is driven by the pan feeding motor and is rotated to remove the inside that gets into to a section of thick bamboo of bending along the crooked direction of a section of thick bamboo of bending with tubular product.

Preferably, the outer surface of the bending cylinder is further wrapped with a heat insulation sleeve, and the heat insulation sleeve is wound with an induction coil.

Further, as preferred, conveying component sets up in the below of the subassembly of bending, conveying component includes keeping away a post, keeping away a pole and keeping away a piece, wherein keep away a post and drive the rotation by rather than coaxial step motor who sets up, the one end that keeps away from step motor of post is fixed with and keeps away a pole, the other end that keeps away a pole is fixed with and keeps away a piece, keep away a post, keep away a pole and keep away a piece and constitute a nearly font and keep away a ware, keep away the axle center of post and the axle center of a bending section of thick bamboo unanimity to the motion trail that makes and keep away a ware corresponds with the shape of a bending section of thick bamboo.

Further, as preferred, conveying component is still including supporting buffer storage storehouse and miniature pump, support buffer storage storehouse and fix on keeping away a piece and be close to a bending section of thick bamboo one side and with the corresponding setting of a bending section of thick bamboo, the sealed cover of surface that supports buffer storage storehouse is equipped with the inflation bag, a plurality of apertures have been seted up to the surface that supports buffer storage storehouse to be linked together the setting with the inflation bag, it still is fixed with miniature pump on the piece to keep away, miniature pump adopts the connecting pipe and supports buffer storage storehouse and be linked together the setting.

Further, as the optimization, the polishing bending component is arranged below the conveying component and comprises a bending component and a polishing component, the bending component comprises a pressing cylinder, a bending block, a limiting cache component and an upper bending cylinder, wherein the pressing cylinder is fixed on the base through a suspension seat, a movable seat is fixed at the movable end of the pressing cylinder, the other end of the movable seat is fixed with the bending block, two groups of upper bending cylinders are symmetrically arranged below the bending block, the upper bending cylinders are fixed on the base through suspension seats, the inclination angles of the upper bending cylinders are arranged corresponding to the bending shapes of the two sides of the bending block, a bending head is fixed at the movable end of each upper bending cylinder, the bending head comprises a bending seat and a guide wheel, the bending seat is U-shaped, and the guide wheel is rotatably arranged in the bending seat, and a limiting buffer memory assembly is also arranged between the two upper bending cylinders.

Further, as preferred, spacing buffer memory subassembly is including propping against piece, fixing base and guide bar, the fixing base is fixed on the base between two cylinders of bending, two through-holes have been seted up on the fixing base for two guide bars of sliding connection respectively, the guide bar is close to the one end of the piece of bending and is fixed with and props against the piece, still the cover is equipped with buffer spring on the guide bar.

Further, as preferred, the middle part of propping up the piece has seted up the arc standing groove for prop up tubular product.

Further, as preferred, the subassembly of bending of polishing still includes the subassembly of polishing, the subassembly of polishing includes the roller of polishing, the roller of polishing rotates and sets up on the piece of bending, bend and seted up the storage tank along its border position on the piece, rotate in the storage tank and be provided with four rollers of polishing, every roller of polishing is rotated by independent driving motor drive respectively, and wherein two left rollers of polishing are anticlockwise rotation, and two rollers of polishing on right side are clockwise rotation.

Further, as preferred, still be provided with the controller on the base 1, the controller links to each other with induction coil, driving motor, step motor and pan feeding motor and miniature pump electrical property, the controller can also control down the cylinder and bend the flexible of cylinder on with.

Compared with the prior art, the invention has the beneficial effects that: the device adopts two feeding driving rollers to move the pipe along the bending direction of the bending cylinder to enter the bending cylinder, the pipe is slowly bent in the moving process, the pipe is heated by the induction coil, the stretchability of the pipe is improved, the occurrence of fracture is reduced, the subsequent processing is facilitated, after the pipe pretreatment is finished, the pipe is conveyed to the grinding and bending assembly through the conveying assembly for treatment, when bending, the lower air cylinder starts to act to drive the pipe and the abutting block to move downwards, then the upper bending air cylinder starts to act to drive the bending head to move upwards to bend, the pipe is taken out after bending, and the next round of operation is carried out, because the metal on the back of the pipe is stretched and the pipe wall becomes thin when the pipe is bent, the metal on the inner side of the pipe is compressed and the pipe wall becomes thick, and in order to ensure the smooth proceeding of the subsequent installation, a polishing component can be selected to polish the redundant metal.

Drawings

FIG. 1 is a schematic view of a tube bending apparatus for machining;

FIG. 2 is a schematic view of the upper half of a tube bending apparatus for machining;

FIG. 3 is a schematic view of the lower half of a tube bending apparatus for machining;

fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Fig. 5 is a schematic structural view of a bending head in a pipe bending apparatus for machining.

In the figure: 1. a base; 2. pre-bending the assembly; 3. pressing down the air cylinder; 4. bending the block; 5. a leaning block; 6. a fixed seat; 7. a guide bar; 8. an upper bending cylinder; 9. bending the elbow; 10. a suspension seat; 11. a guide wheel; 12. a bending seat; 13. a position avoidance column; 14. a feeding driving roller; 15. a position avoiding rod; 16. an induction coil; 17. a support pillar; 18. bending the cylinder; 19. a bit avoidance block; 20. supporting a cache bin; 21. a micro inflator; 22. a connecting pipe; 23. an inflation bladder; 24. an arc-shaped surface; 25. a movable seat; 26. and (5) grinding the roller.

Detailed Description

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

Example (b): referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a tubular product bending apparatus for machining, its includes base 1, the subassembly of bending in advance 2, conveying component and the subassembly of bending of polishing all set up on base 1, the subassembly of bending in advance 2 can tentatively bend and heating preliminary treatment to tubular product, conveying component's movement track is the arc, and it can be with the preliminary treatment piece after the subassembly of bending in advance 2 handles carry to polish in the subassembly of bending of polishing and bend the processing.

In this embodiment, the pre-bending assembly 2 includes a feeding driving roller 14 and a bending cylinder 18, the bending cylinder 18 is fixed on the base 1 by a plurality of supporting columns 17, the plurality of supporting columns 17 are distributed in an arc shape and are vertically symmetrical, so as to clamp the bending cylinder 18, and further fix the bending cylinder 18, the bending cylinder 18 can be fixed on the supporting column 17 by adopting a welding mode, the whole bending cylinder 18 is arc-shaped, the end part of the feeding mechanism is symmetrically provided with feeding driving rollers 14, the feeding driving rollers 14 are driven by a feeding motor (not shown in the figure) to rotate, and the two feeding driving rollers 14 are opposite in rotation direction, specifically, the upper feeding driving roller rotates clockwise, the lower feeding driving roller rotates counterclockwise, so as to move the pipe along the bending direction of the bending cylinder 18 into the bending cylinder 18, and the pipe is slowly bent in the moving process.

Furthermore, the outer surface of the bending cylinder 18 is wrapped with a heat insulation sleeve, an induction coil 16 is wound on the heat insulation sleeve and is connected with a controller, the controller comprises an oscillator, a filter and a rectifier so as to provide high-frequency direct current, the pipe is heated by utilizing the electromagnetic heating principle, the stretchability of the pipe is improved, the occurrence of fracture is reduced, and the subsequent processing is facilitated.

In this embodiment, the conveying assembly is disposed below the bending assembly, and the conveying assembly includes a position-avoiding column 13, a position-avoiding rod 15 and a position-avoiding block 19, where the position-avoiding column 13 is driven by a stepping motor disposed coaxially therewith to rotate, one end of the position-avoiding column 13, which is far away from the stepping motor, is fixed with the position-avoiding rod 15, the other end of the position-avoiding rod 15 is fixed with the position-avoiding block 19, and the position-avoiding column 13, the position-avoiding rod 15 and the position-avoiding block 19 form a zigzag position-avoiding device, so that in the movement process of the position-avoiding device, collision with the bending block is avoided, the axis of the position-avoiding column 13 is consistent with the axis of the bending cylinder 18, so that the movement track of the position-avoiding device corresponds to the shape of the bending cylinder 18, and thus the pipe can be smoothly pulled out of the bending cylinder 18.

In this embodiment, the conveying assembly further comprises a supporting buffer bin 20 and a micro inflator 21, the supporting buffer bin 20 is fixed on one side of the avoiding block 19 close to the bending cylinder 18 and is arranged corresponding to the bending cylinder 18, the outer surface of the supporting buffer bin 20 is provided with an expansion bag 23 in a sealing way, the outer surface of the supporting buffer bin 20 is provided with a plurality of small holes, so as to be communicated with the expansion bag 23, a micro inflator pump 21 is fixed on the position avoiding block 19, the micro inflator pump 21 is communicated with the supporting buffer bin 20 by a connecting pipe 22, after the pipe is pretreated, the supporting buffer bin 20 is embedded into the pipe along with the movement of the position avoiding device, at the moment, the micro air pump 21 starts to work, the micro air pump is pulled out by utilizing the friction force between the expansion bag 23 and the pipe and is sent to the grinding and bending assembly, and then the air pump stops working and pulls the expansion bag out of the pipe to move to a position where subsequent bending is not influenced so as to wait for next cycle operation.

In this embodiment, the polishing and bending assembly is arranged below the conveying assembly, the polishing and bending assembly comprises a bending assembly and a polishing assembly, the bending assembly comprises a pressing cylinder 3, a bending block 4, a limiting buffer assembly and an upper bending cylinder 8, wherein the pressing cylinder 3 is fixed on the base 1 by adopting a suspending empty seat 10, a movable end of the pressing cylinder 3 is fixed with a movable seat 25, the other end of the movable seat 25 is fixed with the bending block 4, two groups of upper bending cylinders 8 are symmetrically arranged below the bending block 4 in an inclined mode, the upper bending cylinder 8 is fixed on the base 1 by adopting the suspending empty seat 10, the inclined angle of the upper bending cylinder 8 corresponds to the bending shapes of the two sides of the bending block, a bending head 9 is fixed at the movable end of the upper bending cylinder 8, the bending head 9 comprises a bending seat 12 and a guide wheel 11, the bending seat 12 is ∪ -shaped, the guide wheel 11 is rotatably arranged in the bending seat 12, and the limiting buffer assembly is further arranged between the upper bending cylinders 8.

In this embodiment, spacing buffer memory subassembly is including propping against piece 5, fixing base 6 and guide bar 7, fixing base 6 is fixed on base 1 between two cylinders 8 of bending, two through-holes have been seted up on fixing base 6 for two guide bars 7 of sliding connection respectively, the guide bar 7 is fixed with near the one end of bending piece 4 and leans on piece 5, it is equipped with buffer spring still to overlap on the guide bar 7.

In this embodiment, the middle part of the abutting block 5 is provided with an arc-shaped placing groove 24 for abutting against the pipe.

In this embodiment, the subassembly of bending of polishing still includes the subassembly of polishing, the subassembly of polishing includes grinding roller 26, grinding roller 26 rotates and sets up on bending piece 4, bending piece 4 is last to have seted up the storage tank along its border position, it is provided with four grinding rollers 26 to rotate in the storage tank, every grinding roller 26 is rotated by independent driving motor (not shown in the figure) drive respectively, wherein two left grinding rollers 26 are anticlockwise rotation, two grinding rollers 26 on right side are clockwise rotation, because when bending, the metal at the tubular product back is stretched, the pipe wall attenuation, the metal of tubular product inboard is compressed, the pipe wall thickening, for guaranteeing going on smoothly of follow-up installation, the unnecessary metal of optional polishing.

In this embodiment, still be provided with the controller on the base 1, the controller links to each other with induction coil 16, driving motor, step motor and pan feeding motor and miniature pump 21 electrical property, the controller can also control the flexible of pushing down cylinder 3 and last bending cylinder 8.

When the bending machine is specifically implemented, a pipe is conveyed to a bending cylinder through a feeding driving roller 14 for pretreatment, then the pipe is conveyed to a polishing and bending assembly through a conveying assembly for treatment, when the pipe is bent, a pressing cylinder 3 starts to act to drive the pipe and abut against a block 5 to move downwards, an upper bending cylinder 8 starts to act to drive a bending head to move upwards to bend, the pipe is taken out after the pipe is bent, and the next round of operation is carried out.

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

Claims

1. The utility model provides a tubular product bending apparatus for machining, its includes base (1), pre-bending subassembly (2), conveying component and the subassembly of bending of polishing, its characterized in that, pre-bending subassembly (2), conveying component and the subassembly of bending of polishing all set up on base (1), pre-bending subassembly (2) can tentatively bend and heat preliminary treatment to tubular product, conveying component's movement track is the arc, and it can be with the preliminary treatment spare after pre-bending subassembly (2) are handled carry to polish in the subassembly of bending of polishing and bend the processing.

2. The tube bending device for machining according to claim 1, wherein the pre-bending assembly (2) comprises a feeding driving roller (14) and a bending barrel (18), the bending barrel (18) is fixed on the base (1) through a plurality of supporting columns (17), the bending barrel (18) is overall arc-shaped, the feeding driving roller (14) is arranged at the end of the bending barrel (18) in an up-and-down symmetrical mode, and the feeding driving roller (14) is driven by a feeding motor to rotate so as to move the tube into the bending barrel (18) along the bending direction of the bending barrel (18).

3. A tube bending device for machining according to claim 2, wherein the outer surface of the bending cylinder (18) is further wrapped with a heat insulating jacket around which the induction coil (16) is wound.

4. The pipe bending device for machining according to claim 1, wherein the conveying assembly is arranged below the bending assembly, the conveying assembly comprises a avoidance column (13), a avoidance rod (15) and a avoidance block (19), the avoidance column (13) is driven by a stepping motor coaxially arranged with the avoidance column (13) to rotate, the avoidance rod (15) is fixed to one end, far away from the stepping motor, of the avoidance column (13), the avoidance block (19) is fixed to the other end of the avoidance rod (15), the avoidance column (13), the avoidance rod (15) and the avoidance block (19) form a n-shaped avoidance device, and the axis of the avoidance column (13) is consistent with the axis of the bending cylinder (18), so that the motion track of the avoidance device corresponds to the shape of the bending cylinder (18).

5. The pipe bending device for machining according to claim 4, wherein the conveying assembly further comprises a supporting buffer bin (20) and a micro air pump (21), the supporting buffer bin (20) is fixed to the position avoiding block (19) and close to one side of the bending barrel (18) and is arranged corresponding to the bending barrel (18), an expansion bag (23) is sleeved on the outer surface of the supporting buffer bin (20) in a sealing mode, a plurality of small holes are formed in the outer surface of the supporting buffer bin (20) so as to be communicated with the expansion bag (23), the micro air pump (21) is further fixed to the position avoiding block (19), and the micro air pump (21) is communicated with the supporting buffer bin (20) through a connecting pipe (22).

6. The pipe bending device for machining according to claim 1, wherein the grinding and bending assembly is arranged below the conveying assembly and comprises a bending assembly and a grinding assembly, the bending assembly comprises a lower pressing cylinder (3), a bending block (4), a limiting buffer assembly and an upper bending cylinder (8), wherein the lower pressing cylinder (3) is fixed on the base (1) through a suspending seat (10), a movable seat (25) is fixed at a movable end of the lower pressing cylinder (3), the other end of the movable seat (25) is fixed with the bending block (4), two groups of upper bending cylinders (8) are symmetrically arranged below the bending block (4), the upper bending cylinders (8) are fixed on the base (1) through the suspending seat (10), an inclination angle of each upper bending cylinder (8) corresponds to a bending shape of two sides of each bending block, a movable bending head (9) of each upper bending cylinder (8) is arranged, each bending buffer cylinder (9) comprises a bending seat (12) and a guide wheel (11), and a rotatable bending head (∪) is arranged between the two bending cylinders (12) and the guide wheel (11).

7. The pipe bending device for machining according to claim 6, wherein the limiting buffer assembly comprises a supporting block (5), a fixed seat (6) and a guide rod (7), the fixed seat (6) is fixed between two upper bending cylinders (8) on the base (1), two through holes are formed in the fixed seat (6) and used for respectively slidably connecting the two guide rods (7), the supporting block (5) is fixed at one end, close to the bending block (4), of the guide rod (7), and a buffer spring is further sleeved on the guide rod (7).

8. The pipe bending device for machining according to claim 7, wherein the middle part of the abutment block (5) is provided with an arc-shaped placing groove (24) for abutting against the pipe.

9. The pipe bending device for machining according to claim 5, wherein the grinding bending assembly further comprises a grinding assembly, the grinding assembly comprises grinding rollers (26), the grinding rollers (26) are rotatably arranged on the bending block (4), a containing groove is formed in the bending block (4) along the edge position of the bending block, four grinding rollers (26) are rotatably arranged in the containing groove, each grinding roller (26) is driven to rotate by an independent driving motor, two grinding rollers (26) on the left side rotate anticlockwise, and two grinding rollers (26) on the right side rotate clockwise.

10. The pipe bending device for machining according to claim 1, wherein a controller is further arranged on the base (1), the controller is electrically connected with the induction coil (16), the driving motor, the stepping motor, the feeding motor and the micro air pump (21), and the controller can also control the extension and retraction of the downward pressing air cylinder (3) and the upward bending air cylinder (8).