CN111531247A

CN111531247A - Flame cutting device of pipe body

Info

Publication number: CN111531247A
Application number: CN202010427472.0A
Authority: CN
Inventors: 丁幼先
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-08-14

Abstract

The utility model provides a flame cutting device of body for the arc notch of processing body right-hand member, its includes chuck (3) of centre gripping body (4), two flame guns (5) of locating the body outside of symmetry, leaves the clearance between flame gun and the body, characterized by, when the chuck rotated, the flame gun reciprocated parallel movement along the axis direction of body, and the kinematic relationship between it was: y = R × (cosX); wherein, Y is the coordinate of flame gun in the axis direction, and R is the radius of body, and X is the rotatory angle of chuck. The working principle is that the synthesis of the rotation motion of the pipe body and the linear motion of the flame gun enables the flame beam to have an arc-shaped motion track on the pipe body, the right end part of the pipe body is cut off, and an arc-shaped notch is formed at the end part of the pipe body. The flame bundle cutting device has the advantages that the notch cutting device can automatically complete notch cutting, reduces labor intensity, improves working efficiency, has no deviation and fluctuation of the movement track of the flame bundle on the pipe body, has smooth cutting surface, and does not need to machine or polish the notch.

Description

Flame cutting device of pipe body

Technical Field

The invention relates to a flame cutting device for a pipe body.

Background

The pipe bracket for supporting the pipeline is structurally shown in fig. 1 and comprises a pipe body 4 and a plate body 41, wherein one end of the pipe body is connected with the plate body, the other end of the pipe body is provided with an arc-shaped notch 42, the pipeline is placed in the notch, and the notch is attached to the pipeline. The notch is formed by drawing an arc line of the notch on the pipe body and then cutting the notch along the arc line with a flame gun (gas cutting gun). The labor intensity is high, and the efficiency is low; if the gas welder is not technically skilled, the cut surface may be uneven and may require machining (boring or turning the recess) or grinding.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a flame cutting device for a pipe body, which can automatically cut a notch, reduce the labor intensity and improve the working efficiency.

The invention has the technical scheme that the flame cutting device of the pipe body is used for cutting the arc-shaped notch at the end part of the pipe body, and comprises a chuck 3 for clamping the pipe body 4 and two flame guns 5 symmetrically arranged at the outer side of the pipe body, wherein a gap is reserved between the flame guns and the pipe body, and the flame cutting device is characterized in that when the chuck rotates, the flame guns reciprocate and move in parallel along the axial direction of the pipe body, and the motion relationship between the flame guns is as follows: y = R × (cosX); wherein Y is the coordinate of the flame gun in the axial direction, R is the radius of the arc notch, and X is the rotating angle of the chuck.

The chuck be connected with the first output shaft 2 of speed reducer 1, the left end of flame gun installation horizontal pole 6, the horizontal pole passes horizontal uide bushing 8, horizontal uide bushing passes through upright bar 12 fixed connection base 21 on, pass through connecting strip 9 fixed connection between the right-hand member of horizontal pole, vertical uide bushing 11 fixed connection is in the middle part of connecting strip, vertical pole 10 has been inserted in the vertical uide bushing, the bottom cover of vertical pole is on the left axle 14 of crank 15, the right axle 16 of crank is inserted in support 20, the tip of right axle is connected with driven bevel gear 17, driven bevel gear and the meshing of initiative bevel gear 18, driven bevel gear equals with the number of teeth of initiative bevel gear, the second output shaft 7 of initiative bevel gear and speed reducer is connected, the rotational speed of first output shaft and second output shaft equals, the centre-to-centre spacing between left axle and the right axle equals the radius of arc.

The working principle of the invention is that when the pipe body rotates, the flame gun makes linear motion, the flame beam of the flame gun points to the pipe body, the synthesis of the rotation motion of the pipe body and the linear motion of the flame gun enables the flame beam to have an arc-shaped motion track on the pipe body, and a part of the pipe body is cut off, so that an arc-shaped notch is formed at the end part of the pipe body.

The flame bundle cutting device has the advantages that the flame bundle cutting device can automatically cut notches, reduces labor intensity, improves working efficiency, has no deviation and fluctuation of the movement track of the flame bundle on the pipe body, has smooth cutting surfaces, and does not need to machine or polish the notches.

Drawings

Figure 1 is a schematic view of a pipe bracket structure,

fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a view from direction a of fig. 2.

FIG. 4 is a schematic view of the axial coordinate movement of the flame gun.

FIG. 5 is another schematic structural diagram of the present invention.

The figures are numbered: 1-a speed reducer, 2-a first output shaft, 3-a chuck, 4-a pipe body, 5-a flame gun, 6-a cross rod, 7-a second output shaft, 8-a transverse guide sleeve, 9-a connecting bar, 10-a vertical bar, 11-a vertical guide sleeve, 12-a vertical bar, 13-a shaft sleeve, 14-a left shaft, 15-a crank, 16-a right shaft, 17-a driven bevel gear, 18-a driving bevel gear, 19-a support plate, 20-a support, 21-a base, 22-a rotary stepping motor, 23-a linear stepping motor and 24-an output shaft of the linear stepping motor.

Detailed Description

The utility model provides a flame cutting device of body for cut the arc recess of body end, its includes chuck 3, the symmetry of centre gripping body 4 and locates two flame guns 5 in the body outside, leaves the clearance between flame gun and the body, characterized by, when the chuck rotated, the flame gun reciprocated parallel translation along the axis direction of body, and the kinematic relationship between it was: y = R × (cosX); as shown in fig. 4, point Y is the coordinate (position) of the flame gun in the axial direction, R is the radius of the arc-shaped notch of the pipe body, and X is the rotation angle of the chuck; point Y 'is another coordinate of the torch in the axial direction, point X' is another angle of chuck rotation, and point O in fig. 4 is a reference point for Y.

As shown in fig. 2 and 3, the chuck is connected with a first output shaft 2 of a speed reducer 1, flame guns are respectively installed at the left parts of corresponding cross rods 6, the cross rods pass through corresponding transverse guide sleeves 8, the transverse guide sleeves are connected with a base 21 through corresponding vertical bars 12, the right ends of the cross rods are fixedly connected through a connecting bar 9, a vertical guide sleeve 11 is fixedly connected with the middle part of the connecting bar, vertical bars 10 are inserted in the vertical guide sleeve, a shaft sleeve 13 at the bottom of each vertical bar is sleeved on a left shaft 14 of a crank 15, a right shaft 16 of the crank is inserted in a support 20, the bottom end of the support 20 is fixedly connected with the base, the end part of the right shaft is connected with a driven bevel gear 17, the driven bevel gear is meshed with a driving bevel gear 18, the driven bevel gear has the same number of teeth as that of the driving bevel gear, the driving bevel gear is connected with a second output shaft 7 of the speed, the bearing plate 19 is fixedly erected on the base, the rotating speeds of the first output shaft and the second output shaft are equal, and the center distance between the left shaft and the right shaft is equal to the radius of the arc-shaped notch of the pipe body.

The crank throw 15, the vertical rod 10, the vertical guide sleeve 11, the cross rod 6 and the transverse guide sleeve 8 form a rotation-linear motion conversion device which converts the rotation motion of the right shaft of the crank throw into the linear motion of the cross rod; the first output shaft and the second output shaft synchronously rotate, the first output shaft drives the pipe body to rotate, the second output shaft drives the cross rod to do linear motion through the rotation-linear motion conversion device, the flame gun moves along with the cross rod, the flame beam of the flame gun radially contacts the pipe body, the synthesis of the rotational motion of the pipe body and the linear motion of the flame gun enables the flame beam to have an arc-shaped motion track on the pipe body, one part of the pipe body is cut off, and the end part of the pipe body forms an arc-shaped notch. The position of the flame gun on the cross rod is adjusted, the chord length of the cambered surface of the notch can be changed, the position of the flame gun on the cross rod is close to the left, the chord length is increased, the maximum value of the chord length is the diameter of the pipe body, the position of the flame gun on the cross rod is close to the right, and the chord length is shortened.

Taking the case that the radius of the notch is equal to the radius of the pipe body, the use method comprises the steps of rotating the chuck to enable the crank throw to be in a vertical state, then clamping the pipe body, enabling the right end of the pipe body to be flush with a nozzle of the flame gun, starting the speed reducer after the flame gun is fired to cut the notch, continuing to rotate the speed reducer after the notch cutting is completed, enabling the flame gun to be far away from the pipe body, then stopping the rotation of the speed reducer, and unloading the processed pipe body. And (4) installing a new pipe body to be processed, starting the speed reducer, and cutting the flame gun to the pipe body for the second time.

Another structure of the invention is shown in fig. 5, the chuck is driven by a rotary stepping motor 22, the flame gun is driven by a linear stepping motor 23, the chuck is connected with an output shaft of the rotary stepping motor, the flame gun is installed at the left end of the cross rod 6, the right end of the cross rod is connected with an output shaft 24 of the linear stepping motor, the rotary stepping motor and the linear stepping motor are controlled by a controller, a program is arranged in the controller, one output end of the controller is connected with the rotary stepping motor, the other output end of the controller is connected with the linear stepping motor, and the motion relation between the linear stepping motor and the rotary stepping motor conforms to Y = R x (cosX).

Claims

1. The utility model provides a flame cutting device of body for the arc notch of cutting pipe body tip, its includes chuck (3) of centre gripping body (4), two flame guns (5) of locating the body outside of symmetry, leaves the clearance between flame gun and the body, characterized by, when the chuck rotates, the flame gun comes and goes parallel translation along the axis direction of body, and the kinematic relationship between it is: y = R × (cosX); wherein Y is the coordinate of the flame gun in the axial direction, R is the radius of the arc notch, and X is the rotating angle of the chuck.

2. The flame cutting device of the pipe body as claimed in claim 1, wherein the chuck is connected with a first output shaft (2) of the speed reducer (1), the flame gun (5) is provided with the left end of a cross rod (6), the cross rod penetrates through a transverse guide sleeve (8), the transverse guide sleeve is fixedly connected on a base (21) through a vertical strip (12), the right end of the cross rod is fixedly connected through a connecting strip (9), a vertical guide sleeve (11) is fixedly connected in the middle of the connecting strip, a vertical rod (10) is inserted in the vertical guide sleeve, the bottom of the vertical rod is sleeved on a left shaft (14) of a crank (15), a right shaft (16) of the crank is inserted in a support (20), the end part of the right shaft is connected with a driven bevel gear (17), the driven bevel gear is meshed with a driving bevel gear (18), the number of teeth of the driven bevel gear is equal to that of the driving bevel gear, the driving bevel gear is connected with a second output shaft (, the rotating speeds of the first output shaft and the second output shaft are equal, and the center distance between the left shaft and the right shaft is equal to the radius of the arc-shaped notch.

3. A flame cutting device for pipe according to claim 1, wherein the chuck is driven by a rotary stepper motor, the flame gun is driven by a linear stepper motor, the rotary stepper motor and the linear stepper motor are controlled by a controller, the controller is programmed, one output of the controller is connected to the rotary stepper motor, the other output of the controller is connected to the linear stepper motor, and the rotary stepper motor and the linear stepper motor have a kinematic relationship of Y = R x (cosX).