Medium and large steel pipe plasma cutting machine

Abstract

The invention discloses a medium and large steel pipe plasma cutting machine. It belongs to the technical field of plasma cutting. It is used to solve the problem that plasma cutting steel pipes can only be smaller than square pipes with specifications below 200x200 or round pipes with specifications below Φ273. The medium and large steel pipe plasma cutting machine comprises a bed connected to a slide table through a linear guide rail, the slide table is connected to a support and a cutting center bracket, the support is connected to an upper roller and a roller seat and a lower roller and a roller seat through a linear guide rail, and the linear guide rail is connected to left and right rollers and roller seats; the support is connected to a worm gear screw lifter, the worm gear screw lifter is connected to an upper roller and a roller seat, the worm gear screw lifter is connected to left and right rollers and roller seats, the cutting center bracket is connected to the slide table through a guide pressure plate 1, the cutting center seat plate is connected to the cutting center support through a guide pressure plate 2, and the reduction box body is connected to the cutting center seat plate. The medium and large steel pipe plasma cutting machine can be widely used in various medium and large steel cutting.

Description

Technical Field

[0001] The invention relates to a cutting machine for cutting steel pipes, in particular to a plasma cutting machine for medium and large steel pipes. Background Art

[0002] The existing steel pipe cut-to-length plasma cutting machine, due to structural limitations, can only be used to cut square pipes of 200x200 and below, or round pipes of Φ273 and below online, and can no longer meet market demand. Summary of the invention

[0003] The invention overcomes the deficiencies in the prior art and provides a plasma cutting machine for online cutting of medium and large steel pipes.

[0004] In order to solve the problems of the above-mentioned technology, the present invention is realized through the following technical scheme: the bed is connected to the slide through a linear guide rail, the slide is connected to the support, the support is connected to the upper roller and roller seat and the lower roller and roller seat through a linear guide rail, and the linear guide rail is connected to the left and right rollers and roller seats; the support is connected to the worm gear screw lifter, the worm gear screw lifter is connected to the upper roller and roller seat, the worm gear screw lifter is connected to the left and right rollers and roller seats, the slide is connected to the cutting center support through a guide pressure plate 1, and the cutting center seat plate is connected to the cutting center support through a guide pressure plate 2 The gearbox body is connected to the cutting center seat plate, the slewing bearing and the gearbox cover are connected to the gearbox body, the plate one is connected to the gearbox cover, a linear module with a motor is connected to the plate one, two linear modules with motors are connected, the plate two is connected to another linear module with a motor, the cutting gun seat is connected to the plate two, the plasma cutting gun is connected to the cutting gun seat, the reducer with a motor is connected to the cutting center support through the plate three, and the adjusting screw is connected to the cutting center seat plate; the servo motor is connected to the servo motor with a reducer, and the gear is connected to the servo motor with a reducer The slewing bearing is connected to the gear; the steel pipe breaking device includes a saw blade, an upper slide plate 1, a base 2, a base 1, a saw head support, a connecting seat and an upper slide plate 2. The steel pipe breaking device is connected to the support, the saw blade is connected to the reducer motor, the reducer motor is connected to the saw head support, the saw head support is connected to the upper slide plate 1, the upper slide plate 1 is connected to the base 2 through a linear guide rail, the base 2 is connected to the upper slide plate 2, the upper slide plate 2 is connected to the base 1 through a linear guide rail, the base 1 is connected to the connecting seat, and the connecting seat is connected to the support; the height adjustment mechanism is connected to the lower roller The upper roller and roller seat and the lower roller and roller seat are connected to the support through linear guides; the servo motor drives the ball screw through the servo motor reducer, and drives the upper slide plate 1 through the linear guide to form a linear movement in the direction of a horizontal angle of 45°; the servo motor drives the ball screw through the servo motor reducer, and drives the upper slide plate 2 through the linear guide to form a linear movement in the direction of a horizontal angle of -45°; the linear module belt motor makes the plasma cutting gun form a horizontal linear movement; the linear module belt motor makes the plasma cutting gun form a vertical linear movement.

[0005] The present invention can also be implemented through the following technical solution: the slide is connected to the drag chain bracket, and the drag chain is connected to the drag chain bracket and the reduction box body.

[0006] The present invention can also be implemented through the following technical solution: the reduction box cover is connected to the dust cover and the panel.

[0007] Compared with the prior art, the invention has the following beneficial effects: 1. The structure is simpler, changing from double-gun cutting to single-gun cutting. 2. By changing the structure, it can realize online and offline cutting of square and rectangular steel pipes and round steel pipes within 800mmx800mm, and offline cutting of square and rectangular steel pipes and round steel pipes above 800mmx800mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a front view schematic diagram of the present invention.

[0009] Figure 2 It is a schematic diagram of the main view of the cutting center.

[0010] Figure 3 It is a right view schematic diagram of the cutting center.

[0011] Figure 4 This is a schematic diagram of the installation location of the steel pipe rupture device.

[0012] Figure 5 It is a schematic diagram of the main view of the steel pipe rupture device.

[0013] Figure 6 It is a side view schematic diagram of the steel pipe rupture device.

[0014] In the attached figure: 1-bed, 2-linear guide, 3-slide, 4-height adjustment mechanism, 5-lower roller and roller seat, 6-upper roller and roller seat, 7-worm gear screw lift, 8-support, 9-steel pipe breaking device, 10-cutting center support, 11-motor and reducer, 12-left and right rollers and roller seats, 13-guide pressure plate 1, 14-steel pipe, 15-linear module with motor, 16-drag chain, 17-plate 1, 18-drag chain bracket, 19-dust cover, 20-panel, 21-plate 2, 22-cutting gun Seat, 23-plasma cutting gun, 24-guide pressure plate 2, 25-reduction box cover, 26-gear, 27-slewing bearing, 28-cutting center seat plate, 29-reduction box body, 30-plate 3, 31-adjusting screw, 32-reduction gearbox with motor, 33-reduction gearbox for servo motor, 34-servo motor, 901-saw blade, 902-upper slide plate 1, 903-base 2, 904-ball screw, 905-base 1, 906-saw head support, 907-connecting seat, 908-upper slide plate 2. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0016] The present invention is composed of a bed 1 connected to a slide 3 through a linear guide 2, the slide 3 is connected to a support 8, the support 8 is connected to an upper roller and a roller seat 6 and a lower roller and a roller seat 5 through a linear guide 2, the linear guide 2 is connected to left and right rollers and roller seats 12; the support 8 is connected to a worm screw lift 7, the worm screw lift 7 is connected to an upper roller and a roller seat 6, the worm screw lift 7 is connected to left and right rollers and roller seats 12; the slide 3 is connected to a cutting center support 10 through a guide pressure plate 13, The cutting center seat plate 28 is connected to the cutting center support 10 through the guide pressure plate 24, the reduction box body 29 is connected to the cutting center seat plate 28, the slewing bearing 27 and the reduction box cover 25 are connected to the reduction box body 29, the plate 17 is connected to the reduction box cover 25, the linear module belt motor 15 is connected to the plate 17, the linear module belt motor 15 is connected to the linear module belt motor 15, the plate 21 is connected to the linear module belt motor 15, the cutting gun seat 22 is connected to the plate 21, and the plasma The cutting gun 23 is connected to the cutting gun seat 22, the reducer belt motor 32 is connected to the cutting center support 10 through the plate 30, and the adjusting screw 31 is connected to the cutting center seat plate 28; the servo motor reducer 33 is connected to the servo motor 34, the gear 26 is connected to the servo motor reducer 33, and the slewing bearing 27 is connected to the gear 26; the saw blade 901 is connected to the reducer belt motor 32, the reducer belt motor 32 is connected to the saw head support 906, and the saw head support 906 is connected to the upper slide The upper slide 1 902 is connected to the base 2 903 through the linear guide 2, the base 2 903 is connected to the upper slide 2 908, the upper slide 2 908 is connected to the base 1 905 through the linear guide 2, the base 1 905 is connected to the connecting seat 907, and the connecting seat 907 is connected to the support 8; the height adjustment mechanism 4 is connected to the lower roller and roller seat 5, the upper roller and roller seat 6 and the lower roller and roller seat 5 are connected to the support 8 through the linear guide 2; the steel pipe breaking device 9 is connected to the support 8. The slide 3 is connected to the drag chain bracket 18, and the drag chain 16 is connected to the drag chain bracket 18 and the reduction box body 29. The reduction box cover 25 is connected to the dust cover 19 and the panel 20.

[0017] Take the 300x300x12 steel pipe cutting process as an example.

[0018] Adjust the positions of the lower roller and roller seat 5, the upper roller and roller seat 6, and the left and right rollers and roller seats 12 so that the upper, lower, left and right guide rollers slightly press the surface of the steel pipe 14.

[0019] The servo motor 34 drives the ball screw 904 through the servo motor reducer 33, and drives the upper slide 1 902 through the linear guide 2 to form a linear movement in the direction of a horizontal angle of 45°; the servo motor 34 drives the ball screw 904 through the servo motor reducer 33, and drives the upper slide 2 908 through the linear guide 2 to form a linear movement in the direction of a horizontal angle of -45°; the two linear motions are synthesized by the CNC system, so that the saw blade 901 can move to the power side, and the upper corner of the steel pipe 14 waits.

[0020] The steel pipe 14 is moved from Figure 1 In the middle, it moves from right to left, and the slide 3 moves in the same direction and at the same speed.

[0021] The servo motor 34 drives the ball screw 904 through the servo motor reducer 33, drives the upper slide plate 902 through the linear guide rail 2, drives the saw blade 901 through the saw head support 906 and the reducer belt motor 32, and moves linearly along the 45° direction of the upper corner of the steel pipe 14 on the power side of the plasma cutting machine to form a 2-3 mm wide gap at the corner. The advantage of this is that the plasma cutting gun 23 can move immediately after ignition, and will not form surface cutting defects due to perforation.

[0022] The servo motor 34 drives the gear 26 to rotate through the servo motor reducer 33, and drives the reducer cover 25 through the slewing bearing 27, so that the plasma cutting gun 23 forms a rotary motion along the rotation center; the linear module belt motor 15 makes the plasma cutting gun 23 form a horizontal linear movement; the linear module belt motor 15 makes the plasma cutting gun 23 form a vertical linear movement; through the numerical control system, a rotary motion and two linear motions are synthesized, so that the gun head of the plasma cutting gun 23 can form a closed-loop motion trajectory such as a circle, a square or a rectangle, and always keep the gun body of the plasma cutting gun 23 perpendicular to the surface of the steel pipe 14, and the distance is kept between 3-8 mm, so that the steel pipe 14 is cut off.

[0023] The medium and large steel pipe plasma cutting machine works fully automatically without manual intervention.

[0024] The invention can cut various open and closed cold-bent steel sections.

[0025] The present invention can be cut online or offline.

[0026] The present invention can also be equipped with a full protective cover and a smoke and dust removal device, or dust removal by spraying water mist to achieve environmental protection requirements.

Claims

1. A medium-to-large steel pipe plasma cutting machine, comprising a bed (1) connected to a slide (3) through a linear guide rail (2), the slide (3) connected to a support (8), the support (8) connected to an upper roller and a roller seat (6) and a lower roller and a roller seat (5) through a linear guide rail (2), the linear guide rail (2) connected to left and right rollers and roller seats (12); the support (8) connected to a worm gear screw lift (7), the worm gear screw lift (7) connected to an upper roller and a roller seat (6), the worm gear screw lift (7) connected to left and right rollers and roller seats (12), characterized in that: The slide (3) is connected to the cutting center support (10) through the guide pressure plate 1 (13), the cutting center seat plate (28) is connected to the cutting center support (10) through the guide pressure plate 2 (24), the reduction box body (29) is connected to the cutting center seat plate (28), the slewing bearing (27) and the reduction box cover (25) are connected to the reduction box body (29), the plate 1 (17) is connected to the reduction box cover (25), a linear module (15) with a motor is connected to the plate 1 (17), two linear modules (15) with motors are electrically connected, the plate 2 (21) is connected to another linear module (15) with a motor, the cutting gun seat (22) is connected to the plate 2 (21), and the plasma The cutting gun (23) is connected to the cutting gun seat (22); the reducer (32) with the motor is connected to the cutting center support (10) through the plate three (30); the adjusting screw (31) is connected to the cutting center seat plate (28); the servo motor reducer (33) is connected to the servo motor (34); the gear (26) is connected to the servo motor reducer (33); the slewing bearing (27) is connected to the gear (26); the steel pipe breaking device (9) includes a saw blade (901), an upper slide plate one (902), a base two (903), a base one (905), a saw head support (906), a connecting seat (907) and an upper slide plate two (908); the steel pipe breaking device (9) is connected to the support ( 8), the saw blade (901) is connected to the reducer (32) with the motor, the reducer (32) with the motor is connected to the saw head support (906), the saw head support (906) is connected to the upper slide plate (902), the upper slide plate (902) is connected to the base (903) through the linear guide rail (2), the base (903) is connected to the upper slide plate (908), the upper slide plate (908) is connected to the base (905) through the linear guide rail (2), the base (905) is connected to the connecting seat (907), and the connecting seat (907) is connected to the support (8); the height adjustment mechanism (4) is connected to the lower roller and roller seat (5), the upper roller and roller seat (6) and the lower roller and roller seat (5 ) is connected to the support (8) through a linear guide rail (2); the servo motor (34) drives the ball screw (904) through the servo motor reducer (33), and drives the upper slide plate (902) through the linear guide rail (2) to form a linear movement in a horizontal angle of 45°; the servo motor (34) drives the ball screw (904) through the servo motor reducer (33), and drives the upper slide plate (908) through the linear guide rail (2) to form a linear movement in a horizontal angle of -45°; a linear module (15) with a motor causes the plasma cutting gun (23) to form a horizontal linear movement; another linear module (15) with a motor causes the plasma cutting gun (23) to form a vertical linear movement.

2. The medium-to-large steel pipe plasma cutting machine according to claim 1, characterized in that: The slide (3) is connected to the drag chain bracket (18), and the drag chain (16) is connected to the drag chain bracket (18) and the reduction box (29).

3. The medium-to-large steel pipe plasma cutting machine according to claim 1 or 2, characterized in that: The reduction box cover (25) is connected to the dust cover (19) and the panel (20).

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