CN212329310U - Straightening device for square and long pipes - Google Patents

Abstract

The utility model discloses a square long tube coalignment, including the alignment mechanism that receives the drive ability lift removal, alignment mechanism advances including an alignment cover, the stopper that the medial surface formed with the spacing face of cross section complex of square long tube is installed to the upper portion inboard of alignment cover, fixed pressure sensor is installed to the medial surface of stopper, the alignment module that carries out the alignment by alignment oil cylinder drive to the work piece is installed to the middle part inboard of alignment cover, the quantity of alignment module is the same with the plane quantity by the outer peripheral face of alignment piece, and each alignment module acts on one and carries out the alignment on the plane by the outer peripheral face of alignment piece, the inboard relative arrangement in lower part of alignment cover has carried out the tight clamp by the centre gripping oil cylinder drive to the work piece. The utility model discloses rise through removing after the work piece is pressed from both sides tightly, can realize carrying out the alignment to the work piece rebound section by section, guarantee the high accuracy requirement of alignment.

Description

Straightening device for square and long pipes

Technical Field

The utility model relates to a pipe fitting alignment technical field especially relates to a square long tube coalignment.

Background

The production of the square tube is completed by the processes of rolling, stretching and the like, and the square tube is deformed to different degrees in both cold-hot rolling and cold-hot stretching. The conventional manual straightening process of the hydraulic machine cannot meet the high-precision requirement of special industries such as military industry and aerospace.

Disclosure of Invention

The utility model aims at the defect among the foretell prior art, and provide a square long tube coalignment of high accuracy, judge crooked degree through pressure sensor's detected signal, then exert pressure to crooked one side, repeated detection is repeated to exert pressure, and the mode of alignment stage by stage can be rectified the straightness accuracy of long tube within 0.3 mm.

For realizing the utility model discloses a technical scheme that the purpose adopted is:

the utility model provides a square long pipe coalignment, includes the alignment mechanism that receives the drive ability lift removal, alignment mechanism advances to include an alignment cover, the stopper that the medial surface formed the spacing face of cross section complex with the square long pipe is installed to the upper portion inboard of alignment cover, the inboard surface mounting of stopper has fixed pressure sensor, the alignment module that carries out the alignment by the alignment hydro-cylinder drive to the work piece is installed to the middle part inboard of alignment cover, the quantity of alignment module is the same with the plane quantity by the outer peripheral face of alignment piece, and each alignment module acts on one and carries out the alignment on the plane by the outer peripheral face of alignment piece, the inboard relative arrangement in lower part of alignment cover has carried out the clamp that presss from both sides tightly to the work piece by the centre gripping hydro-cylinder drive.

As a preferred technical solution, the straightening mechanism is provided with a clamping and locking mechanism, which is used to clamp and lock one end of the long pipe to be straightened, and then the straightening mechanism moves upward to straighten the long pipe section by section.

As a preferred technical scheme, the clamping and locking mechanism comprises a fixed block which is arranged on a base and used for initially fixing a workpiece, a clamping block is arranged in the fixed block, a locking block driven by a locking oil cylinder vertically arranged on the base is arranged on the outer side of the clamping block, and the locking block is matched and connected with the clamping block through a conical inclined plane.

As a preferred technical scheme, the straightening mechanism is connected to a lifting mechanism, and the lifting mechanism is used for driving the straightening mechanism to move upwards to straighten the workpiece segment, and resetting the straightening mechanism after straightening is completed.

As a preferable technical scheme, the clamping and locking mechanism and the lifting mechanism are arranged on a movable trolley.

The utility model discloses a square long tube coalignment through the alignment mechanism that receives the drive energy lift removal, rises through removing after the work piece is pressed from both sides tightly, can realize carrying out the alignment to work piece rebound section by section, has guaranteed the high accuracy requirement of alignment.

Drawings

Fig. 1 is a schematic structural view of the square long tube straightening device of the present invention.

FIG. 2 is a sectional view of the correcting mechanism;

FIG. 3 is a sectional top view structural view of the correcting mechanism;

FIG. 4 is a cross-sectional isometric view of the calibration mechanism;

FIG. 5 is a schematic layout cross-sectional view of a straightening cylinder and a straightening module on the upper part of the correcting mechanism;

FIG. 6 is a schematic sectional view of the arrangement of the clamping cylinder and the clamp in the middle of the correcting mechanism;

FIG. 7 is a cross-sectional view of the arrangement of the clamp and lock mechanism at the lower portion of the alignment mechanism;

FIG. 8 is a schematic view of an axial structure of a fixed block;

in the figure: 1. the pressure sensor 2, the limiting block 3, the straightening oil cylinder 4, the straightening module 5, the straightening sleeve 6, the clamping oil cylinder 7, the clamp 8, the fixed block 9, the clamping block 10, the locking block 11, the locking oil cylinder 12, the base 13, the square long tube 20, the straightening mechanism 21, the lifting mechanism 22, the trolley 23, the pump station 24 and the square long tube.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the straightening device for a square long tube provided by the present invention comprises a clamping and locking mechanism and a straightening mechanism 20 disposed above the clamping and locking mechanism, wherein the clamping and locking mechanism is used for clamping and locking one end of the square long tube to be straightened, and then the straightening mechanism straightens the square long tube; wherein, the alignment mechanism advances to include a alignment cover 5, the stopper 2 that the medial surface formed the cross section complex spacing face with the square long pipe is installed to the upper portion inboard of alignment cover, fixed pressure sensor 1 is installed to every spacing face of stopper, the middle part inboard of alignment cover is installed and is carried out the alignment module 4 of alignment by the drive of alignment hydro-cylinder 3 to the work piece, the quantity of alignment module 4 is the same with the plane quantity by the outer peripheral face of alignment, and each alignment module acts on and carries out the alignment on the plane of a outer peripheral face by the alignment, the lower part inboard of alignment cover has been arranged and has been carried out the clamp 7 that presss from both sides tightly to the work piece by the drive of centre gripping hydro-cylinder 6, clamp 7 is two, mutual disposition.

In the utility model, 2 clamping oil cylinders are used for ejecting and clamping, and the use pressure is adjustable; the number of the straightening oil cylinders is determined according to the number of planes of the square pipe, and the use pressure is adjustable. The inner side surface of the limiting block is in a shape which is matched with the cross section of the square long pipe to be processed, the limiting planes with the same number as the outer side planes of the square long pipe are arranged to limit the maximum bending value of the workpiece, and a pressure sensor is arranged on each plane to detect the pressure value.

When the straightening works, after one end of a square long pipe 13 (a hexagonal long pipe) to be straightened is clamped, the straightening part mechanism starts to work, and a distance from the straightening clamp 7 to the limiting block 2 is reserved. The hydraulic cylinder 6 pushes the clamp 7 to the inner side to clamp the square long pipe, the pressure sensor 1 starts to work, the size of a pressure signal is judged, signals are output in 2 directions with larger pressure, the hydraulic cylinder 3 on the opposite side is pushed out, and pressure is applied to the square long pipe through the straightening module 4. And continuously repeating the judgment and the pressing action until the signal difference value of the pressure sensor is controlled within a certain range, and straightening for a certain distance in the straightening sleeve 5. The straightening sleeve 5 is then lifted by the lifting mechanism 21 and the next stage of straightening is started.

It should be noted that, in the present invention, the clamping and locking mechanism can be realized by the oil cylinder and the clamping device driven by the oil cylinder, and any available mechanism capable of clamping the square tube can be adopted, and the present invention is not limited specifically.

For further convenience, the utility model provides a partly cooperate tight locking mechanism of clamp of alignment mechanism, as shown in fig. 2, 4, 7, it is including installing fixed block 8 on base 12 for the initial fixation of responsible square long tube, install a complex through inclined plane 82 and press from both sides tight piece 9 between the adjacent perpendicular spacing arris of the perpendicular spacing arris 81 of a plurality of interval arrangements of fixed block 8, in order to press from both sides tight piece spacing between two perpendicular spacing arris and can not fall out, the quantity of pressing from both sides tight piece 9 is the same with the quantity of treating the limit on the cross section of pressing from both sides tight square long tube, the outside of pressing from both sides tight piece 9 be provided with by the locking piece 10 of arranging locking hydro-cylinder 11 driven on base 12 perpendicularly, locking piece 10 meet through the cooperation of toper inclined plane with pressing from both sides tight piece 9.

Specifically, the inner side surface of the clamping block is matched with the outer surface of the workpiece in shape, and can be in surface contact clamping with the outer surface of the workpiece.

The locking block is of a cylindrical or ring-shaped structure, is sleeved outside the fixed block 8, is connected with the two locking oil cylinders 11 at the bottom, and is driven by the locking oil cylinders to move up and down so as to drive the clamping block to move from outside to inside at the inner side, thereby clamping the square long tube 13.

Specifically, fixed block 8 be welded structure, including top spacing collar 80, bottom spacing collar 83, fix at top spacing collar 80, a plurality of perpendicular spacing arris 81 between the bottom spacing collar 83, press from both sides the upper surface contact of bottom and bottom spacing collar under the tight piece initial condition, under the tight condition of clamp, it is spacing by the lower surface of top spacing collar after upwards the inward movement, thereby it is spacing to realize spacing to the upper and lower position of clamp piece, weld after the inboard finish machining of fixed block 8, pass through for the bolt fastening bottom spacing collar with the base, the medial surface of top spacing collar 80 and bottom spacing collar 83 forms the spacing face 84 that the limit number is the same of the cross section of the tight direction long tube of clamp, perpendicular spacing arris 81's effect is fixed on the edge normal direction of perpendicular spacing arris 81 with the vertical movement direction of clamp piece 9.

The number of the clamping blocks 9 is the same as the number of the edges of the square long tube to be corrected, the outer side of the clamping blocks is at an angle of 7 degrees, the inner side of the locking block 10 is at an angle of 7 degrees, when the locking block 10 is ejected upwards, the clamping blocks are squeezed to move inwards, one end of the square long tube is clamped, and when the locking block 10 is ejected downwards, the clamping blocks 9 are automatically loosened to take out the square long tube.

The clamping and locking mechanism and the correcting mechanism are separated, the clamping and locking mechanism is fixed on the base and does not move, and the correcting mechanism can be lifted by the lifter in stages. The correcting mechanism is lifted a certain distance by the lifting machine when the correcting mechanism finishes correcting one section.

When one end of the straightened long square tube is placed in the fixed block 8, the locking oil cylinder 11 extends upwards to move, the locking block 10 is pushed upwards, the locking block 10 is connected with the conical surface of the clamping block 9, and when the locking block 10 moves upwards, the clamping block 9 moves inwards under the limit of the upper fixed block 8, so that the end of the long square tube 13 is clamped.

The utility model discloses in, the locking hydro-cylinder is 2, and service pressure is adjustable.

When the straightening machine works, one end of a square long pipe to be straightened is inserted into the fixing block 8, the locking oil cylinder 11 pushes the locking block 10 upwards, the locking block 10 is connected with the conical surface of the clamping block 9, and when the locking block 10 moves upwards, the clamping block 9 moves inwards under the limitation of the fixing block 8 to clamp the port of the square long pipe.

After one end of the square long pipe is clamped, the clamp 7 is straightened to a certain distance from the limiting block 2. The hydraulic cylinder 6 pushes the clamp 7 to the inner side to clamp the square long pipe, the pressure sensor 1 is opened to work, the size of a pressure signal is judged, signals are output in 2 directions with larger pressure, the hydraulic cylinder 3 on the opposite side is pushed out, and pressure is applied to the square long pipe through the straightening module 4. And continuously repeating the pressure signal judgment and pressure application actions until the signal difference values of all the pressure sensors 1 are controlled within a certain range, and straightening a section of pipe length in the straightening sleeve 5.

The straightening sleeve 5 is lifted by the lifting mechanism, the next stage of straightening is started, and the process is repeated until the long pipe is completely straightened.

In the above, the long hexagonal tube is taken as an example for explanation, and actually, the technique of the present invention can be used for straightening long hexagonal tubes with triangular, square, or regular polygonal cross-sections, in addition to the trueness of the long hexagonal tube, and is not limited to the above-mentioned embodiment.

The utility model also provides an adopt foretell alignment equipment of alignment mechanism, including pressing from both sides tight locking mechanism and arranging the alignment mechanism 20 of the top of pressing from both sides tight locking mechanism, alignment mechanism 20 install on lifting mechanism 21, lifting mechanism 21 adopts hydraulic drive, and drive alignment mechanism 20 rises along the vertical direction, or descends, realizes removing the alignment to upright pipe fitting, presss from both sides tight locking mechanism, alignment mechanism 20, and lifting mechanism 21 and the pump station 23 that provides hydraulic power can be in the same place integrated installation on a mobilizable shallow 23, conveniently removes the use.

It should be noted that, in the present invention, the outer side surface of the lifting mechanism 21 and the straightening sleeve 5 of the straightening mechanism 20 are fixed, and can be implemented by any available vertical lifting platform or mechanism in the prior art, or hydraulic pressure is used as power, or a motor and the like provides power, which is not limited specifically.

The utility model discloses a high accuracy side long tube coalignment can judge crooked degree through pressure sensor's signal, then exerts pressure to crooked one side, and repeated detection is repeated exerts pressure, and the mode of alignment stage by stage can realize proofreading the straightness accuracy of long tube within 0.3 mm.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a square long pipe coalignment, its characterized in that, includes the alignment mechanism that receives the drive ability lift removal, alignment mechanism includes a alignment cover, the stopper that the medial surface formed with the spacing face of cross section complex of square long pipe is installed to the upper portion inboard of alignment cover, the inboard surface mounting of stopper has fixed pressure sensor, the alignment module that carries out the alignment by the alignment hydro-cylinder drive to the work piece is installed to the middle part inboard of alignment cover, the quantity of alignment module is the same with the plane quantity by the outer peripheral face of alignment piece, and each alignment module acts on one and carries out the alignment on the plane by the outer peripheral face of alignment piece, the inboard relative arrangement in lower part of alignment cover has carried out tight clamp by the centre gripping hydro-cylinder drive to the work piece.

2. The device for straightening the elongated tube according to claim 1, wherein the straightening mechanism is provided with a clamping and locking mechanism for clamping and locking one end of the elongated tube to be straightened at all times, and then the elongated tube is moved upwards by the straightening mechanism to be straightened section by section.

3. The straightening device for the square long tube according to claim 2, wherein the clamping and locking mechanism comprises a fixed block which is arranged on the base and used for initially fixing the workpiece, a clamping block is arranged in the fixed block, a locking block which is driven by a locking oil cylinder vertically arranged on the base is arranged on the outer side of the clamping block, and the locking block and the clamping block are connected in a matched mode through a conical inclined surface.

4. The device for straightening the elongated tube according to claim 2 or 3, wherein the straightening mechanism is connected with a lifting mechanism, and the lifting mechanism is used for driving the straightening mechanism to move upwards to straighten the workpiece segments and reset the straightening mechanism after straightening.

5. The device for straightening the square tube according to claim 4, characterized in that the clamping and locking mechanism and the lifting mechanism are mounted on a movable trolley.

Images