CO2 laser cutting head

Abstract

The utility model discloses a CO2 laser cutting head which comprises a shell, a cover body is fixedly installed on the side face of the shell, a photoelectric plug is fixedly installed at the top of the shell, an air inlet used for being connected with CO2 is fixedly installed on the back face of the shell, a supporting frame is fixedly installed on the inner side face of the shell, and an adjusting mechanism is fixedly installed in the middle of the supporting frame. A mounting base capable of moving up and down is arranged below the adjusting mechanism, and a laser beam mechanism is arranged between the mounting base and the supporting frame. In the utility model, the distance sensor is obliquely arranged, so that the distance sensor and the axis of the laser beam mechanism have an intersection point, and when the adjusting mechanism drives the laser beam mechanism to move downwards, a workpiece is positioned at the intersection point of the distance sensor and the axis of the laser beam mechanism, namely the optimal cutting height of the laser beam mechanism is achieved, thereby ensuring the machining precision; and errors caused by traditional manual adjustment are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field especially relates to a CO2 laser cutting head. BACKGROUND

[0002] The laser cutting processing is with the invisible light beam instead of the traditional mechanical knife, has the characteristics such as high precision, cutting fast, not limited to cutting pattern restriction, automatic layout saves material, cut smooth, processing cost is low, will gradually improve or replace the traditional metal cutting process equipment. The mechanical part of laser cutter head has no contact with workpiece, and will not scratch the surface of workpiece in work. Laser cutting speed is fast, and the cut is smooth and flat, generally no subsequent processing is needed.

[0003] The laser cutting machine is the laser that emits from the laser, focuses into high power density laser beam through the optical path system. Laser beam irradiates to workpiece surface, makes workpiece reach melting point or boiling point, and high pressure gas coaxial with beam will blow away melted or vaporized metal, at present, the traditional CO2 laser cutting head is adjusted and controlled according to the processing state observed by operating personnel. However, this way excessively depends on manual observation and judgment, leading to low machining precision. UTILITARIAN CONTENT

[0004] The utility model aims at solving the shortcomings in prior art and provides a CO2 laser cutting head.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A CO2 laser cutting head, including the casing, the side surface of the casing is fixedly installed with the cover, and the top of the casing is fixedly installed with the photoelectric plug, the back of the casing is fixedly installed with the air inlet for connecting CO2, the inner side of the casing is fixedly installed with the support frame, and the middle part of the support frame is fixedly installed with the adjusting mechanism, the lower part of the adjusting mechanism is equipped with the mounting seat that can move up and down, the laser beam mechanism is equipped between the mounting seat and the support frame, the inner side of the casing is installed with the limit switch matched with the mounting seat, the side of the laser beam mechanism is fixedly installed with the distance sensor arranged obliquely, and the other side of the laser beam mechanism is provided with the flexible hose connected with the air inlet.

[0007] Preferably, the laser beam mechanism includes a mirror module, a focusing lens module and a nozzle module, the mirror module and the focusing lens module are fixedly installed on the support frame, and the nozzle module is fixedly installed on the mounting seat, the distance sensor is fixedly installed on the side of the nozzle module, and the nozzle module is axially slidably connected with the focusing lens module.

[0008] Preferably, the adjusting mechanism comprises an adjusting motor, an adjusting screw rod and an adjusting nut, the adjusting motor is fixedly arranged on the support frame, the adjusting screw rod is fixedly arranged at the bottom end of the output shaft of the adjusting motor, the adjusting nut is screwed on the outer side of the adjusting screw rod, and the adjusting nut is fixedly arranged on the mounting seat.

[0009] Preferably, the mounting seat comprises a movable plate arranged horizontally, and the end of the movable plate is provided with a mounting ring connected with the nozzle module, and the side of the movable plate is provided with a touch rod matched with the limit switch.

[0010] Preferably, the two ends of the shell are provided with strip magnets, and the inner sides of the two ends of the cover are provided with magnetic attraction parts magnetically connected with the strip magnets.

[0011] Preferably, the side of the mounting seat is provided with a sliding block, and the inner side of the shell is provided with a sliding rail arranged in parallel with the adjusting screw rod, and the sliding block is slidingly connected with the sliding rail.

[0012] Preferably, the bottom of the shell is provided with a T-shaped groove matched with the distance sensor and the nozzle module.

[0013] The beneficial effects of the present application are as follows:

[0014] In the present application, the lower end of the laser beam mechanism is arranged on the mounting seat, the mounting seat can be adjusted up and down under the action of the adjusting mechanism, and the distance sensor is arranged on the lower end of the laser beam mechanism and moves synchronously, thereby measuring the distance signal between the distance sensor and the workpiece, controlling the adjusting mechanism to act, adjusting the distance between the bottom nozzle of the laser beam mechanism and the workpiece, and the distance sensor is arranged obliquely, so that the distance sensor and the axis of the laser beam mechanism have an intersection point, when the adjusting mechanism drives the laser beam mechanism to move downward, the workpiece is located at the intersection point of the distance sensor and the axis of the laser beam mechanism, that is, the optimal cutting height of the laser beam mechanism is reached, thereby ensuring the machining precision and avoiding the error caused by traditional manual adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure diagram of the CO2 laser cutting head is provided in the present application;

[0016] Figure 2 An internal structure diagram of the CO2 laser cutting head is provided in the present application;

[0017] Figure 3 An adjusting mechanism structure diagram of the CO2 laser cutting head is provided in the present application;

[0018] Figure 4 A laser beam mechanism structure diagram of the CO2 laser cutting head is provided in the present application;

[0019] Figure 5 A CO2 laser cutting head limiting switch distribution structure schematic diagram is provided in the utility model.

[0020] In the figure: 1 shell, 2 cover, 3 air inlet, 4 photoelectric plug, 5 laser beam mechanism, 51 reflector module, 52 focusing mirror module, 53 nozzle module, 6 adjusting mechanism, 61 adjusting motor, 62 adjusting screw, 63 adjusting nut, 7 mounting seat, 71 movable plate, 72 limit pin, 73 lens holder, 8 slide rail, 9 magnet, 10 sliding block, 11 limit switch, 12 distance sensor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Referring to Figures 1-5 A CO2 laser cutting head, including shell 1, the side of shell 1 is fixedly installed with cover 2, and the top of shell 1 is fixedly installed with photoelectric plug 4, the back of shell 1 is fixedly installed with air inlet 3 for connecting CO2, the inner side of shell 1 is fixedly installed with support frame, and the middle of support frame is fixedly installed with adjusting mechanism 6, the lower portion of adjusting mechanism 6 is equipped with movable mounting seat 7, laser beam mechanism 5 is equipped between mounting seat 7 and support frame, the inner side of shell 1 is installed with limit switch 11 matched with mounting seat 7, the side of laser beam mechanism 5 is fixedly installed with obliquely arranged distance sensor 12, and the other side of laser beam mechanism 5 is provided with flexible hose connected with air inlet 3.

[0023] In the utility model, the lower end of laser beam mechanism 5 is equipped on mounting seat 7, and mounting seat 7 can be adjusted up and down under the action of adjusting mechanism 6, and distance sensor 12 in synchronous motion is installed on the lower end of laser beam mechanism 5, and then the distance signal between laser beam mechanism 5 and workpiece is measured through distance sensor 12, adjusting mechanism 6 is controlled to act, the distance between the bottom nozzle of laser beam mechanism 5 and workpiece is adjusted, distance sensor 12 is obliquely arranged, so that distance sensor 12 and the axis of laser beam mechanism 5 exist intersection point, when adjusting mechanism 6 drives laser beam mechanism 5 to move downward, workpiece is located at the intersection point position of distance sensor 12 and the axis of laser beam mechanism 5, that is, the best cutting height of laser beam mechanism 5 is reached, so as to ensure machining accuracy and avoid errors caused by traditional manual adjustment.

[0024] The utility model discloses, laser beam mechanism 5 includes mirror module 51, focusing mirror module 52 and nozzle module 53, mirror module 51, focusing mirror module 52 are fixedly installed on the support frame, and nozzle module 53 is fixedly installed on the mounting seat 7, and the distance sensor 12 is fixedly installed on the side position of nozzle module 53, and nozzle module 53 and focusing mirror module 52 axial sliding connection, the utility model discloses, mirror module 51, focusing mirror module 52 position is fixed, guarantees that laser beam irradiation is stable, through the up and down adjustment of nozzle module 53 connected with the mounting seat 7, adjusts the distance between the jet airflow and workpiece surface, utilizes the high pressure CO2 with laser beam coaxial and blows away the melted or gasified metal, improves the processing accuracy.

[0025] The utility model discloses, adjusting mechanism 6 includes adjusting motor 61, adjusting screw 62 and adjusting nut 63, adjusting motor 61 fixedly installed on the support frame, and adjusting screw 62 is fixedly installed on the output shaft bottom end of adjusting motor 61, and adjusting nut 63 is screwed on the outside of adjusting screw 62, and adjusting nut 63 is fixedly installed on the mounting seat 7, the utility model discloses, adjusting motor 61 drives adjusting screw 62 to rotate, through the adjusting nut 63 of screwing with adjusting screw 62, drives the mounting seat 7 to move up and down, and then the height of nozzle module 53 is adjusted.

[0026] The utility model discloses, mounting seat 7 includes the movable plate 71 who sets up horizontally, and the end of movable plate 71 is provided with the mounting ring 73 who is connected with nozzle module 53, and the side of movable plate 71 is provided with the touch bar 72 who is matched with limit switch 11, the utility model discloses, the mounting seat 7 is moved up and down under the action of adjusting mechanism 6, and drives nozzle module 53, distance sensor 12 to move up and down control the distance between workpiece surface, when mounting seat 7 moves to the highest end position, touch bar 72 contacts limit switch 11, and adjusting mechanism 6 stops acting accordingly, and the storage protection operation of cutting head is completed.

[0027] The utility model discloses, the both ends position of shell 1 is equipped with strip magnet 9, and the both end inboard position of cover 2 is provided with the magnetic attraction part who is connected with strip magnet 9 magnetically, the utility model discloses, between cover 2 and shell 1, through strip magnet 9 carries out magnetic attraction positioning, and it is convenient for the dismounting operation of cover 2.

[0028] The utility model discloses, the side of mounting seat 7 is equipped with sliding block 10, and the inboard position of shell 1 is equipped with the slide rail 8 who sets up in parallel with adjusting screw 62, and sliding block 10 is connected with slide rail 8 slidingly, the utility model discloses, during the up and down movement of nozzle module 53, through the slide rail 8 who sets up in parallel with adjusting screw 62, and the limit cooperation with the sliding block 10 installed on the side of mounting seat 7, improve the stability during the movement of nozzle module 53, keep the axial distribution stability of nozzle module 53 and mirror module 51, focusing mirror module 52, and then improve the precision and stability of cutting head cutting operation.

[0029] The bottom of the shell 1 is provided with a T-shaped groove matched with the distance sensor 12 and the nozzle module 53, in the utility model, the nozzle module 53 moves out to work, and when cutting is finished, the distance sensor 12 and the nozzle module 53 are stored between the shell 1 and the cover 2.

[0030] Working principle: the lower end of the laser beam mechanism 5 is arranged on the mounting seat 7, the mounting seat 7 can be adjusted up and down under the action of the adjusting mechanism 6, and the distance sensor 12 is installed on the lower end of the laser beam mechanism 5 and moves synchronously, then the distance between the distance sensor 12 and the workpiece is measured, the adjusting mechanism 6 is controlled to act, the distance between the bottom nozzle of the laser beam mechanism 5 and the workpiece is adjusted, the distance sensor 12 is arranged obliquely, so that the distance sensor 12 and the axis of the laser beam mechanism 5 have an intersection point, when the adjusting mechanism 6 drives the laser beam mechanism 5 to move downward, the workpiece is located at the intersection point position of the distance sensor 12 and the axis of the laser beam mechanism 5, that is, the best cutting height of the laser beam mechanism 5 is reached, so that the machining precision is ensured.

[0031] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A CO2 laser cutting head, comprising a shell (1), a cover (2) is fixedly installed on the side of the shell (1), and a photoelectric plug (4) is fixedly installed on the top of the shell (1), characterized in that, The back of the shell (1) is fixedly installed with an air inlet (3) for connecting CO2, the inner side of the shell (1) is fixedly installed with a support frame, and the middle of the support frame is fixedly installed with an adjusting mechanism (6), the lower part of the adjusting mechanism (6) is provided with a mounting seat (7) that can move up and down, the mounting seat (7) and the support frame are provided with a laser beam mechanism (5), the inner side of the shell (1) is installed with a limit switch (11) matched with the mounting seat (7), the side of the laser beam mechanism (5) is fixedly installed with a distance sensor (12) arranged obliquely, and the other side of the laser beam mechanism (5) is provided with a flexible hose connected with the air inlet (3).

2. A CO2 laser cutting head according to claim 1, characterized in that The laser beam mechanism (5) comprises a mirror module (51), a focusing mirror module (52) and a nozzle module (53), the mirror module (51) and the focusing mirror module (52) are fixedly installed on the support frame, and the nozzle module (53) is fixedly installed on the mounting seat (7), the distance sensor (12) is fixedly installed on the side of the nozzle module (53), and the nozzle module (53) is axially slidably connected with the focusing mirror module (52).

3. A CO2 laser cutting head according to claim 2, wherein, The adjusting mechanism (6) comprises an adjusting motor (61), an adjusting lead screw (62) and an adjusting nut (63), the adjusting motor (61) is fixedly installed on the support frame, the adjusting lead screw (62) is fixedly installed at the bottom end of the output shaft of the adjusting motor (61), and the adjusting nut (63) is screwed on the outer side of the adjusting lead screw (62) and is fixedly installed on the mounting seat (7).

4. A CO2 laser cutting head according to claim 3, wherein, The mounting seat (7) comprises a movable plate (71) arranged horizontally, and the end of the movable plate (71) is provided with a mounting ring (73) connected with the nozzle module (53), and the side of the movable plate (71) is provided with a touch rod (72) matched with the limit switch (11).

5. A CO2 laser cutting head according to claim 1, wherein, The both ends of the shell (1) are provided with a strip magnet (9), and the inner side of the both ends of the cover (2) is provided with a magnetic attraction part magnetically connected with the strip magnet (9).

6. A CO2 laser cutting head according to claim 4, wherein, The side of the mounting seat (7) is provided with a sliding block (10), and the inner side of the shell (1) is provided with a sliding rail (8) arranged in parallel with the adjusting lead screw (62), and the sliding block (10) is slidably connected with the sliding rail (8).

7. A CO2 laser cutting head according to claim 6, wherein, The bottom of the shell (1) is provided with a T-shaped groove matched with the distance sensor (12) and the nozzle module (53).

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