CN110202029B

CN110202029B - Automatic numerical control multi-section bending device for pipes

Info

Publication number: CN110202029B
Application number: CN201910525154.5A
Authority: CN
Inventors: 龙锋
Original assignee: Shenzhen Laun Clean Technology Co ltd
Current assignee: SHENZHEN LAUN CLEAN TECHNOLOGY Co.,Ltd.
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-09-01
Anticipated expiration: 2039-06-18
Also published as: CN110202029A

Abstract

The invention discloses an automatic numerical control multi-section pipe bending device which comprises a machine table, a support frame, a propelling device, a pipe bending frame and a pipe bending device, wherein the propelling device is used for propelling the support frame to horizontally move, the support frame is formed by welding two mutually perpendicular flat plates, the support frame is provided with a first motor, an output shaft of the first motor is fixedly connected with a first rotating shaft, the first rotating shaft is fixedly connected with the center of a chuck body of a chuck, the pipe bending device comprises a second motor, the second motor is fixedly connected with a second rotating shaft, the second rotating shaft is fixedly connected with a bending piece, the support frame is fixedly connected with a front end cover and a rear end cover of a first air cylinder, and a piston rod of the first air. The pipe bending machine has the advantages that the first motor drives the chuck to rotate the pipe, so that the pipe is bent in different directions, the second motor drives the pipe pressing piece and the bending piece to rotate in the same direction, the pipe is bent into a certain angle, multi-section bending is realized, the structure is simple, the operation is convenient, and the continuity is good.

Description

Automatic numerical control multi-section bending device for pipes

Technical Field

The invention relates to the technical field of pipe processing, in particular to an automatic numerical control multi-section bending device for pipes.

Background

At present, the mechanical pipe bending industry often adopts the pipe bending modes such as pipe pushing, stretch bending, bending and bending, the used pipe bending mechanisms are all one-way pipe bending mechanisms, and if the pipe materials need to be bent in a plurality of different directions, the material transferring mode is adopted, but the labor intensity of the mode is high, and the precision and the quality of the pipe bending are influenced in the material changing process.

Disclosure of Invention

The invention aims to provide an automatic numerical control multi-section bending device for pipes, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic numerical control multi-section pipe bending device comprises a machine table, a support frame, a propelling device, a pipe bending frame and a pipe bending device, wherein the propelling device is used for pushing the support frame to horizontally move, a support column is fixedly connected to the bottoms of the machine table and the pipe bending frame, the support frame is welded by two mutually perpendicular flat plates, the propelling device is arranged at the horizontal flat plate end of the support frame, vertical end of the support frame is fixedly connected with an angle steel, the angle steel is fixedly connected with a first motor, an output shaft of the first motor is fixedly connected with a first rotating shaft, the first rotating shaft penetrates through the support frame and then is fixedly connected with the center of a chuck body of the chuck, the chuck clamps one end of a pipe, the machine table is fixedly connected with the pipe bending frame, the pipe bending frame is provided with the pipe bending device, the pipe bending device comprises a second motor, the second motor is, two pivot framves that are the mirror image and arrange, two of bent pipe bracket top fixed connection the second pivot is connected to pivot difference bearing, second pivot fixed connection bending member, bending member and tubular product looks butt, the upper and lower end cover of the first cylinder of second support fixed connection, the piston rod fixed connection pressure pipe fitting of first cylinder.

Preferably, advancing device includes step motor, and ball screw is vice, first support and loading board, step motor's output shaft passes through the vice lead screw of shaft coupling fixed connection ball screw, board fixed connection first support, lead screw propulsion bearing of first support fixed connection, lead screw propulsion bearing interference fit ball screw is vice, the vice screw nut fixed connection loading board of ball screw, the loading board is "L font" to loading board and support frame bolted connection.

Preferably, the bottom of the machine table is provided with a first groove and a first clamping groove located above the first groove, the first clamping groove is a dovetail groove, a support frame is placed in the first groove, the top of the support frame is provided with a first clamping block integrally formed with the support frame, the first clamping block and the first clamping groove are both provided with two clamping blocks which are horizontally arranged at equal intervals, and the first clamping block is completely embedded into the first clamping groove and is in sliding fit with the first clamping groove.

Preferably, the top of the machine table is provided with a second groove, a second cylinder is placed in the second groove, the lower end cover of the second cylinder is fixedly connected with the machine table, a piston rod of the second cylinder is fixedly connected with a pressing block, the pressing block is provided with a through round hole, a pipe is sleeved on the through round hole, second clamping blocks integrally formed with the pressing block are arranged on the front side and the rear side of the pressing block, the top of the machine table is connected with two locking pieces in a bolt mode, the two locking pieces are provided with two clamping grooves which are in mirror symmetry relative to the longitudinal central shaft of the pressing block, the second clamping grooves are dovetail grooves, and the second clamping blocks are completely embedded into the second clamping grooves and are in sliding fit with the second.

Preferably, the top of the bending part is provided with a semicircular concave surface, the bottom of the pipe pressing part is provided with a linear concave surface, and the maximum diameters of the semicircular concave surface and the linear concave surface are both larger than the diameter of the pipe.

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

1. the pipe bending machine has the advantages that the first motor drives the chuck to rotate the pipe, so that the pipe is bent in different directions, the second motor drives the pipe pressing piece and the bending piece to rotate in the same direction, the pipe is bent into a certain angle, multi-section bending is realized, the structure is simple, the operation is convenient, and the continuity is good;

2. the machine table and the support frame are in sliding fit through the first clamping block and the first clamping groove, and the machine table is used as the support of the support frame due to the fact that the first clamping groove is embedded with the first clamping block, so that the load of the support frame on the bearing plate is reduced, namely the abrasion between the screw nut and the screw rod is reduced, the service life of the ball screw pair is prolonged, and the propelling device is stable in operation;

3. the piston rod of second cylinder promotes the briquetting and carries out vertical removal to make to run through the round hole and act on tubular product, for tubular product provides the fulcrum at bending process, because tubular product is to complete under the effect of pressing the pipe spare, the briquetting as the fulcrum reduces tubular product and produces ascending effort to the chuck, protects the chuck.

Drawings

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

FIG. 2 is a schematic structural view of a pipe bending apparatus according to the present invention;

FIG. 3 is a schematic view of the structure of the machine, the supporting frame and the bearing plate of the present invention;

fig. 4 is a schematic structural view of a second wedge and a stopper according to the present invention.

In the figure: the device comprises a machine table 1, a support frame 2, a stepping motor 3, a ball screw pair 4, a first support 5, a support column 6, a bearing plate 7, angle steel 8, a first motor 9, a first rotating shaft 10, a chuck 11, a pipe bending frame 12, a second motor 13, a second rotating shaft 14, a second support 15, a rotating shaft frame 16, a bending part 17, a first cylinder 18, a pipe pressing part 19, a first groove 20, a first clamping block 21, a second cylinder 22, a second groove 23, a pressing block 24, a second clamping block 25, a stopping piece 26, a circular through hole 27, a semicircular concave surface 28, a linear concave surface 29 and a pipe 30.

Detailed Description

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

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an automatic numerical control multistage bending device of tubular product, includes board 1, support frame 1 for promote support frame 1 and carry out horizontal migration's advancing device, bent pipe frame 12 and swan neck system. The bottom of the machine table 1 and the bottom of the pipe bending frame 12 are fixedly connected with the supporting column 6, the supporting frame 2 is formed by welding two mutually vertical flat plates, and the horizontal flat plate end of the supporting frame 2 is provided with a propelling device.

As shown in fig. 1, in this embodiment, the propelling device includes a stepping motor 3, a ball screw pair 4, a first bracket 5 and a bearing plate 7, an output shaft of the stepping motor 3 is fixedly connected to a screw of the ball screw pair 4 through a coupler, the machine table 1 is fixedly connected to the first bracket 5, the first bracket 5 is fixedly connected to a screw propelling bearing, the screw propelling bearing is in interference fit with a screw of the ball screw pair 4, a screw nut of the ball screw pair 4 is fixedly connected to the bearing plate 7, the bearing plate 7 is "L-shaped", and the bearing plate 7 is bolted to the support frame 2.

Starting the stepping motor 3, according to the screw rod transmission principle, the output shaft of the stepping motor 3 drives the screw rod to rotate, the screw rod nut makes linear motion, and the bearing plate 7 can drive the support frame 2 to make linear motion due to the fact that the bearing plate 7 is connected with the support frame 2 through the bolts.

As shown in fig. 3, in this embodiment, the bottom of the machine table 1 is provided with a first groove 20 and a first clamping groove located above the first groove 20, the first clamping groove is a dovetail groove, the support frame 2 is placed in the first groove 20, the top of the support frame 2 is provided with a first clamping block 21 integrally formed therewith, the first clamping block 21 and the first clamping groove are both provided with two clamping blocks arranged at equal intervals, and the first clamping block 21 is completely embedded in the first clamping groove and is in sliding fit with the first clamping groove.

Rely on first fixture block 21 and first draw-in groove to carry out sliding fit between board 1 and the support frame 2 to because first draw-in groove and the gomphosis of first fixture block 21 looks, board 1 is as the support of support frame 2, thereby reduces support frame 2 and to the load of loading board 7, reduces the wearing and tearing between screw-nut and the lead screw promptly, improves the vice 4 life of ball screw, and advancing device operates steadily.

The vertical end fixed connection angle steel 8 of support frame 2, the first motor 9 of angle steel 8 fixed connection, the first pivot 10 of output shaft fixed connection of first motor 9, first pivot 10 run through support frame 2 back with the chuck body center fixed connection of chuck 11, chuck 11 presss from both sides tight one end of pipe 30, 1 fixed connection pipe bending frame 12 of board, pipe bending frame 12 is equipped with swan neck system.

As shown in fig. 2, in this embodiment, the tube bending device includes a second motor 13, the second motor 13 is fixedly connected to a second rotating shaft 14 through a coupling, the second rotating shaft 14 is fixedly connected to a second bracket 15, two rotating shaft brackets 16 arranged in a mirror image are fixedly connected to the top of the tube bending bracket 12, the two rotating shaft brackets 16 are respectively connected to the second rotating shaft 14 through bearings, the second rotating shaft 14 is fixedly connected to a bending member 17, the bending member 17 abuts against a tube 30, the second bracket 15 is fixedly connected to upper and lower end caps of a first cylinder 18, and a piston rod of the first cylinder 18 is fixedly connected to a tube pressing member 19.

In this embodiment, the first motor 9 and the second motor 13 both adopt a worm gear and worm gear motor with a single chip and an encoder, the single chip reads pulses through the encoder, and the counting is used as feedback to act on the worm gear and worm gear motor, so that the worm gear and worm gear motor rotates by a specific angle. After the first motor 9 is started, the chuck 11 rotates the tube 30, so that the tube 30 is bent in different directions.

The top of the bending piece 17 is provided with a semicircular concave surface 28, the bottom of the pressing piece 19 is provided with a linear concave surface 29, and the maximum diameters of the semicircular concave surface 28 and the linear concave surface 29 are both larger than the diameter of the pipe 30. The first cylinder 18 is actuated, and the first cylinder 18 pushes the compression fitting 19 against the tubing 30, which compresses the linear concave surface 29 of the compression fitting 19 and the semi-circular concave surface 28 of the compression fitting 19 together against the tubing 30. After the second motor 13 is started, the second rotating shaft 14 drives the bending part 17 and the second support 15 to rotate in the same direction in a mirror image manner, and the pipe 30 is bent to a certain angle because the second support 15 is fixedly connected with the upper end cover and the lower end cover of the first cylinder 18, and the pipe pressing part 19 and the bending part 17 rotate in the same direction.

Particularly, in this embodiment, the top of machine table 1 is equipped with second recess 22, second cylinder 23 has been placed to second recess 22, the lower end cover and machine table 1 fixed connection of second cylinder 23, and the piston rod fixed connection briquetting 24 of second cylinder 23, briquetting 24 is equipped with and runs through round hole 27, it is equipped with tubular product 30 to run through round hole 27 cover, and the front and back both sides of briquetting 24 are equipped with rather than integrated into one piece's second fixture block 25, machine table 1 top bolted connection locking piece 26, locking piece 26 is equipped with two and be mirror symmetry about the longitudinal center axle of briquetting 24, be equipped with the second draw-in groove on locking piece 26, the second draw-in groove is the dovetail, second fixture block 25 imbeds the second draw-in groove completely and rather than sliding fit, locking piece 26 realizes carrying out fine restriction to the direction of advancing of briquetting 24.

The second air cylinder 23 is started, the piston rod of the second air cylinder 23 pushes the pressing block 24 to vertically move, so that the penetrating round hole 27 acts on the pipe 30, a fulcrum is provided for the pipe 30 in the bending process, the pipe 30 is completely pressed under the action of the pipe pressing piece 19, the pressing block 24 serving as the fulcrum reduces the upward acting force generated by the pipe 30 on the chuck 11, and the chuck 11 is protected.

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 an automatic numerical control multistage bending device of tubular product, includes board (1), support frame (2) for promote support frame (2) and carry out horizontal migration's advancing device, pipe bending support (12) and swan neck system, its characterized in that: the utility model discloses a pipe bending machine, including board (1) and bent pipe frame (12) bottom equal fixed connection support column (6), support frame (2) are by two mutually perpendicular's dull and stereotyped welding, and the horizontal dull and stereotyped end of support frame (2) is equipped with advancing device to the vertical end fixed connection angle steel (8) of support frame (2), angle steel (8) first motor of fixed connection (9), the first pivot (10) of output shaft fixed connection of first motor (9), first pivot (10) run through support frame (2) back and chuck body center fixed connection of chuck (11), the one end of chuck (11) clamp tube material (30), board (1) fixed connection bent pipe frame (12), bent pipe frame (12) are equipped with swan neck system, swan neck system includes second motor (13), second motor (13) are through shaft coupling fixed connection second pivot (14), the second rotating shaft (14) is fixedly connected with a second support (15), the top of the bent pipe frame (12) is fixedly connected with two rotating shaft frames (16) which are arranged in a mirror image manner, the two rotating shaft frames (16) are respectively connected with the second rotating shaft (14) through bearings, the second rotating shaft (14) is fixedly connected with a bending part (17), the bending part (17) is abutted to a pipe (30), the second support (15) is fixedly connected with the upper end cover and the lower end cover of the first air cylinder (18), and a piston rod of the first air cylinder (18) is fixedly connected with a pipe pressing part (19);

the bottom of the machine table (1) is provided with a first groove (20) and a first clamping groove located above the groove (20), the first clamping groove is a dovetail groove, a support frame (2) is placed in the groove (20), the top of the support frame (2) is provided with a first clamping block (21) integrally formed with the support frame, the first clamping block (21) and the first clamping groove are both provided with two clamping blocks which are horizontally arranged at equal intervals, and the first clamping block (21) is completely embedded into the first clamping groove and is in sliding fit with the first clamping groove;

the improved structure is characterized in that a second groove (22) is formed in the top of the machine table (1), a second air cylinder (23) is placed in the second groove (22), the lower end cover of the second air cylinder (23) is fixedly connected with the machine table (1), a pressing block (24) is fixedly connected with a piston rod of the second air cylinder (23), a through round hole (27) is formed in the pressing block (24), a pipe (30) is sleeved on the through round hole (27), second clamping blocks (25) which are integrally formed with the pressing block (24) are arranged on the front side and the rear side of the pressing block (24), a locking piece (26) is connected with the top of the machine table (1) through bolts, the locking piece (26) is provided with two locking pieces, the two locking pieces are mirror-symmetrical about a longitudinal central shaft of the pressing block (24), a second clamping groove is formed in the locking piece (26), and the second clamping groove.

2. The automatic numerical control multi-section bending device for the pipes according to claim 1, which is characterized in that: the propelling device comprises a stepping motor (3), a ball screw pair (4), a first support (5) and a bearing plate (7), wherein an output shaft of the stepping motor (3) passes through a screw of the ball screw pair (4) fixedly connected through a shaft coupler, a machine table (1) is fixedly connected with the first support (5), the first support (5) is fixedly connected with a screw propelling bearing, the screw propelling bearing is in interference fit with a screw of the ball screw pair (4), the screw nut of the ball screw pair (4) is fixedly connected with the bearing plate (7), and the bearing plate (7) is in an L shape and is in bolted connection with the support frame (2).

3. The automatic numerical control multi-section bending device for the pipes according to claim 1, which is characterized in that: the top of the bending part (17) is provided with a semicircular concave surface (28), the bottom of the pipe pressing part (19) is provided with a linear concave surface (29), and the maximum diameters of the semicircular concave surface (28) and the linear concave surface (29) are both larger than the diameter of the pipe (30).