Steel pipe laser cutting machine

Abstract

The utility model discloses a steel pipe laser cutting machine which comprises a machine table, a rotary driving assembly is installed on the top of the machine table and connected with a chuck, and a steel pipe penetrates through the rotary driving assembly and is clamped by the chuck. A rocker arm is arranged above the chuck, the mounting frame is mounted at one end of the rocker arm, and the laser cutting head is mounted on the mounting frame; the other end of the rocker arm is rotationally connected with a piston rod of the swing driving cylinder; the middle of the rocker arm is installed on a supporting base supporting the rocker arm to rotate. The mounting frame comprises a shell, the lead screw is mounted in the shell, the upper end of the lead screw extends out of the shell and then is connected with the hand wheel, the back of the mounting plate is spirally connected with the lead screw, the laser cutting head is mounted on the front portion of the mounting plate, and the air cylinder drives the rocker arm to swing so that the position relation between the laser cutting head and a steel pipe can be changed. The automatic lifting mechanism is simple in structure, capable of cutting in various forms, capable of improving cutting flexibility and cutting accuracy and beneficial to use, and has the advantage of being long in service life compared with a traditional automatic lifting mechanism.

Description

Technical Field

[0001] The utility model relates to a steel pipe laser cutting machine, belonging to the technical field of laser cutting machines. Background Art

[0002] Laser cutting is to irradiate a workpiece with a high-power density laser beam focused by a lens, so that the irradiated product is quickly melted, vaporized, ablated or reaches the ignition point. At the same time, the molten material is blown away by a high-speed air flow coaxial with the beam, so as to cut the workpiece. Most existing steel pipes are cut by laser cutting machines.

[0003] The structure of the existing laser cutting machine for steel pipes is that both the steel pipe and the laser cutting head are in fixed positions. Cutting steel pipes with different diameters will affect the cutting quality and time. The positional relationship between the laser cutting tool head and the steel pipe cannot be changed, reducing the cutting flexibility and being not conducive to use.

[0004] To solve this problem, it will be first thought to install the laser cutting head on an automatic lifting mechanism. However, the enterprise found in actual research that the current automatic lifting mechanism uses a motor-driven lead screw transmission mechanism. Since the laser cutting head will be lifted after cutting and the cutting time is very short, the motor is always working, resulting in a low service life. To solve this deficiency, the enterprise provides a new structure to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide a steel pipe laser cutting machine to solve the above problems.

[0006] The technical solution adopted by the utility model is: a steel pipe laser cutting machine, including a machine table, and an accommodation space is arranged inside the machine table;

[0007] A rotary drive assembly is installed on the top of the machine table, the rotary drive assembly is connected with a chuck, and a steel pipe passes through the middle hole of the rotary drive assembly and is clamped by the chuck;

[0008] A swing arm is arranged above the chuck, a mounting bracket is installed at one end of the swing arm close to the chuck, and a laser cutting head is installed on the mounting bracket;

[0009] The other end of the swing arm is rotatably connected with the piston rod of a swing drive cylinder, and the body of the swing drive cylinder is arranged inside the machine table;

[0010] The middle part of the swing arm is installed on a support seat for supporting its rotation, and the support seat is installed on the top of the machine table;

[0011] The mounting bracket includes a housing, a lead screw is installed inside the housing, bearings for supporting both ends of the lead screw are provided inside the housing, the upper end of the lead screw extends out of the housing and is connected to a handwheel, the back of the mounting plate is in screw connection with the lead screw, the body of the mounting plate is located outside the housing, a laser cutting head is installed at the front of the mounting plate, and the housing is provided with a channel for the vertical movement of the mounting plate.

[0012] Further, it also includes a pipe fitting supporting component arranged in front of the chuck, and the lower part of the pipe fitting supporting component is installed on the machine table.

[0013] Specifically, the pipe fitting supporting component includes a cylinder inclined upward and rotating wheels arranged on both sides of the piston rod of the cylinder, and the rotating wheels abut against the outer peripheral surface of the steel.

[0014] Further, it also includes a dust suction component arranged at the bottom of the housing, and the dust suction component includes a negative pressure component, a dust suction nozzle and a dust conveying pipeline;

[0015] The negative pressure component is installed at the bottom of the housing;

[0016] The dust suction nozzle is close to the cutting position of the laser cutting head.

[0017] Beneficial effects:

[0018] By driving the swing of the swing arm through the cylinder to change the positional relationship between the laser cutting head and the steel pipe, various different forms of cutting can be carried out, improving the flexibility of cutting, improving the accuracy of cutting, and being beneficial for use.

[0019] Compared with the traditional automatic lifting mechanism, it has the advantage of long service life. Description of the drawings

[0020] Figures 1-3 is a structural schematic diagram of the present utility model;

[0021] Figures 4-5 is a structural diagram of the mounting bracket of the present utility model;

[0022] Figure 6 is a schematic diagram of the dust suction component of the present utility model;

[0023] Wherein:

[0024] 1 - machine table, 2 - rotary drive component, 3 - swing drive cylinder, 4 - swing arm, 5 - laser cutting head, 6 - mounting bracket, 7 - dust suction component, 8 - pipe fitting supporting component, 9 - chuck, 10 - support seat;

[0025] 61 - housing, 62 - lead screw, 63 - handwheel, 64 - mounting plate. Specific embodiments

[0026] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific implementation manner, structure, features and effects of the present utility model as follows.

[0027] Please refer to Figures 1 to 5 , a steel pipe laser cutting machine, including a machine table 1, and an accommodation space is provided inside the machine table 1;

[0028] A rotary drive assembly 2 is installed on the top of the machine table 1. The rotary drive assembly 2 is used to drive the steel pipe to rotate. The rotary drive assembly 2 is connected to a chuck 9. Both the rotary drive assembly 2 and the chuck 9 are prior arts. The steel pipe passes through the middle hole of the rotary drive assembly 2 and is clamped by the chuck 9;

[0029] A swing arm 4 is provided above the chuck 9. A mounting bracket 6 is installed at one end of the swing arm 4 close to the chuck, and a laser cutting head 5 is installed on the mounting bracket 6;

[0030] The other end of the swing arm 4 is rotatably connected to the piston rod of a swing drive cylinder 3, and the body of the swing drive cylinder 3 is placed inside the machine table 1;

[0031] The middle part of the swing arm 4 is installed on a support seat 10 that supports its rotation, and the support seat 10 is installed on the top of the machine table 1;

[0032] The mounting bracket 6 includes a housing 61. A lead screw 62 is installed inside the housing 61. Bearings for supporting both ends of the lead screw 62 are provided inside the housing 61 (refer to Figure 4 ). The upper end of the lead screw 62 extends out of the housing 61 and is connected to a handwheel 63. The back of a mounting plate 64 is in threaded connection with the lead screw 62. The body of the mounting plate 64 is located outside the housing 61, and the laser cutting head 5 is installed on the front part of the mounting plate 64. The housing 61 is provided with a channel for the mounting plate 64 to move vertically.

[0033] By driving the swing of the swing arm 4 through a cylinder to change the positional relationship between the laser cutting head 5 and the steel pipe, various different forms of cutting can be performed, improving the flexibility of cutting, improving the accuracy of cutting, and being beneficial for use.

[0034] At the same time, the mounting bracket 6 adopts a manually liftable device for adjusting the up and down position of the laser cutting head 5.

[0035] Compared with the traditional automatic lifting mechanism, it has the advantage of long service life.

[0036] Please refer to Figures 1 to 3, in order to support the cut steel pipe, it further includes a pipe fitting supporting component 8 arranged in front of the chuck 9, and the lower part of the pipe fitting supporting component 8 is installed on the machine table 1.

[0037] The pipe fitting supporting component 8 includes a cylinder arranged obliquely upward, and runners arranged on both sides of the piston rod of the cylinder, and the runners abut against the outer peripheral surface of the steel.

[0038] Please refer to Figures 1 to 2 and refer to Figure 6 , in order to improve the cutting environment, it further includes a dust suction component 7 arranged at the bottom of the housing 61, and the dust suction component 7 includes a negative pressure component, a dust suction nozzle and a dust conveying pipeline;

[0039] The negative pressure component is installed at the bottom of the housing;

[0040] The dust suction nozzle is close to the cutting position of the laser cutting head.

[0041] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A steel pipe laser cutting machine, the difference is that it includes a machine table, and an accommodation space is provided inside the machine table; A rotation drive assembly is installed on the top of the machine table, the rotation drive assembly is connected to a chuck, and a steel pipe passes through the middle hole of the rotation drive assembly and is clamped by the chuck; A swing arm is provided above the chuck, a mounting bracket is installed at one end of the swing arm close to the chuck, and a laser cutting head is installed on the mounting bracket; The other end of the swing arm is rotatably connected to the piston rod of a swing drive cylinder, and the body of the swing drive cylinder is placed inside the machine table; The middle part of the swing arm is installed on a support seat for supporting its rotation, and the support seat is installed on the top of the machine table; The mounting bracket includes a housing, a lead screw is installed inside the housing, bearings for supporting both ends of the lead screw are provided inside the housing, the upper end of the lead screw extends out of the housing and is connected to a handwheel, the back of a mounting plate is in screw connection with the lead screw, the body of the mounting plate is located outside the housing, a laser cutting head is installed on the front of the mounting plate, and the housing is provided with a channel for the vertical movement of the mounting plate.

2. The laser pipe cutting machine according to claim 1, wherein It further includes a pipe fitting supporting component arranged in front of the chuck, and the lower part of the pipe fitting supporting component is installed on the machine table.

3. The pipe laser cutting machine according to claim 2, wherein The pipe fitting supporting component includes a cylinder inclined upward, and runners arranged on both sides of the piston rod of the cylinder, and the runners abut against the outer peripheral surface of the steel.

4. A steel pipe laser cutting machine according to claim 1, characterized in that, It further includes a dust suction component arranged at the bottom of the housing, and the dust suction component includes a negative pressure component, a dust suction nozzle and a dust conveying pipeline; The negative pressure component is installed at the bottom of the housing; The dust suction nozzle is close to the cutting position of the laser cutting head.

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