CN201988842U

CN201988842U - Optical laser cutting head

Info

Publication number: CN201988842U
Application number: CN 201020680018
Authority: CN
Inventors: 吴新成; 陈燚; 陈根余; 赵剑; 高云峰
Original assignee: Shenzhen Hans Laser Technology Co Ltd
Current assignee: Shenzhen Hans Laser Technology Co Ltd; Han s Laser Technology Co Ltd
Priority date: 2010-12-24
Filing date: 2010-12-24
Publication date: 2011-09-28
Anticipated expiration: 2020-12-24

Abstract

The utility model discloses an optical laser cutting head which comprises a square connecting body part, a beam expanding part fixed above the connecting body part, a focus lens part installed in the upper cavity of the connecting body part, a protective lens part installed in the lower cavity of the connecting body part, and a sensor part arranged below the connecting body part in a split manner, wherein the focus lens part and the protective lens part are placed and fixed in the connecting body part from the side surface. The optical laser cutting head has the benefits that the cutting head is not easy to vibrate when a laser cutting machine runs at high speed due to the square shape, an air path and a water path are built inside, a pipe connector is arranged on an upper cover, a reflective lens base is omitted, the beam expanding part is vertically installed, the optical laser cutting head is smart wholly, has light weight and attractive appearance and is convenient to protect, the protective lens can be replaced conveniently as the protective lens and the focus lens are separately installed, and the focus lens is not easy to pollute.

Description

A kind of optical-fiber laser cutting head

[technical field]

The utility model relates to a kind of optical-fiber laser cutting head.

[background technology]

Conventional laser cutting head (as the optical-fiber laser cutting head) is circular, as the optical-fiber laser cutting head is circular, adopt the right angle flange to install at end face, cutting head is easily trembled when the laser cutting machine high-speed motion, influences cutting accuracy and cross section quality, tracheae and water pipe are contained in the centre position of side, expand bundle thick heaviness of part and level and install, expanding between bundle part and the cutting head has a mirror unit, has increased cost and weight, outward appearance is relatively poor, is not easy to protection.

[utility model content]

For solving the problem of above-mentioned proposition; the utility model design a kind of when the laser cutting machine high-speed motion cutting head be difficult for trembling; the optical-fiber laser cutting head of being convenient to protect; it comprises a square connector part; be fixed on the expansion bundle part of this connector part top; be installed in the focus lamp part in the described connector part epicoele; be installed in the protective glass part in the described connector part cavity of resorption; be divided in the Sensor section of described connector part below; wherein, described focus lamp part and protective glass part are all inserted from the side and are fixed in the described connector part.

Wherein, in the upper end of described connector part pipe joint and power lug are housed.

Wherein, the optical fiber head of described expansion bundle part upper end connection optical fiber laser.

Wherein, described expansion bundle partly adopts water-cooling pattern.

Wherein, described focus lamp partly comprises the focusing mirror holder that focuses on microscope base, is fixed in described focusing microscope base inboard, is positioned at the screw mechanism of described focusing mirror holder upper end, also comprises at least two adjustment screw in the described focusing microscope base outside.

Wherein, described screw mechanism is a handwheel.

Wherein, described protective glass partly comprises the protection microscope base and is installed in the interior protective glass of a slice at least sheet of this protection microscope base.

Wherein, described protection eyeglass is a planar lens.

Wherein, below described sensor, be connected with cutting head.

Wherein, described expansion bundle part all partly is connected with described connector with the guide rod guidance mode with Sensor section.

The beneficial effects of the utility model be square profile when making the laser cutting machine high-speed motion cutting head be difficult for trembling; gas circuit and water route are built-in, and pipe joint is contained in and covers, and has removed mirror unit; expand the vertical installation of bundle part; whole small and exquisite, in light weight, good looking appearance; be convenient to protection; protection eyeglass and focusing lens are installed separately, and are convenient to change the protection eyeglass, and focusing lens also is difficult for contaminated.

[description of drawings]

The utility model will be further described in conjunction with embodiment with reference to the accompanying drawings.

Fig. 1 is the overall structure schematic perspective view of optical-fiber laser cutting head of the present utility model;

Fig. 2 is the exploded perspective schematic diagram of optical-fiber laser cutting head of the present utility model;

Fig. 3 is the floor map of optical-fiber laser cutting head of the present utility model.

[specific embodiment]

Below in conjunction with the description of drawings and the specific embodiment the utility model is further specified.

Embodiment 1; with reference to figure 1-Fig. 3; the optical-fiber laser cutting head that present embodiment provides is square; it comprises a square connector part 1, be vertically mounted on the expansion bundle part 2 of connector part 1 top, be installed in focus lamp part 3 in connector part 1 epicoele, be installed in protective glass part 4 in connector part 1 cavity of resorption, be installed in the Sensor section 5 of connector part 1 below, and focus lamp part 3 and protective glass part 4 are all inserted from the side and be fixed in the connector part 1.

Connector part 1 is a part maximum in the each several part, and other parts of cutting head all are installed on the connector part 1.This connector part 1 comprises the pipe joint 11 and the power lug 12 of end mounted thereto, and electric wire enters into Sensor section 5 by the aperture in the connector part 1, and the gas circuit of cutting head and water route are built-in.Because this connector part 1 is square, its two sides and trailing flank are the plane all, are convenient to install, fix, and cutting head is difficult for trembling when making the laser cutting machine high-speed motion.

Expand bundle part 2, be vertically mounted on connector part 1 top, expand bundle part 2 built-in one group of lens (figure does not show), expand the optical fiber head (being called for short QBH) (figure does not show) that bundle part 2 upper ends connect optical fiber laser.

Focus lamp part 3, be installed in connector part 1 epicoele, comprise a focusing microscope base 35, be fixed in the focusing mirror holder 31 that focuses on microscope base 35 inboards, also comprise at least two adjustment screw 34 in focusing microscope base 35 outsides, be used to regulate the horizontal level of focusing lens 33, light beam after focusing on is coaxial with sensor (figure does not show) and cutting head 6, in the present embodiment, focuses on two adjustment screw 34 of microscope base 35 arranged outside.Focus on mirror holder 31 and comprise one group of built-in focusing lens 33, be arranged at the screw mechanism 32 that focuses on mirror holder 31 upper ends in the present embodiment, can regulate the upright position of focusing lens 33 by regulating this screw mechanism 32, thereby regulate the upright position of focus with respect to cutting steel plate, this screw mechanism 32 also has scale indication 311 simultaneously, quantize to regulate the displacement of focusing lens 33 according to the variation of different cuts sheet material thickness by this scale indication 311, make easy to adjust, quick.

Protective glass part 4 is installed in connector part 1 cavity of resorption, and it comprises protection microscope base 41, a slice protective glass sheet 42 and handle 43 at least.Wherein, this protection eyeglass 42 is a planar lens, guarantees that the focusing lens 33 and the external world separate, and protection focusing lens 33 is avoided the pollution of pollutants such as dust.Simultaneously, can keep the stability of focused beam, to guarantee cut quality by changing protection eyeglass 42.

Focus lamp part 3 and protective glass part 4 are all inserted from the side and are fixed in the connector part 1.

Sensor section 5 is installed in connector part 1 below, its built-in sensors (figure does not show), and cutting head 6 is equipped with in its lower end.When cutting head 6 will produce a small capacitance between cutting head 6 and the steel plate during near the steel plate that is cut, sensor is dealt into control system (figure does not show) to this small capacitance, control system will be controlled at certain numerical value to this small capacitance, under the driving of the servomotor of lathe (figure do not show), will keep a small constant distance between cutting head and the steel plate.

Embodiment 2, and the optical-fiber laser cutting head that present embodiment provides is to be further detailed embodiment on the basis of the foregoing description, that is: expand bundle part 2 and can adopt the water-cooling pattern cooling.

The screw mechanism 32 that focuses on mirror holder 31 upper ends can be for taking turns on the other hand.According to the steel plate of different materials and thickness, start to take turns by setting stick, regulate the upright position of focusing lens 33.

Expand that bundle part 2 is connected by four first guide rods 13 and four second guide rods, 51 guiding respectively with Sensor section 5 and connector part 1 on, make positioning parts accurate, and then fix by securing member.In the present embodiment, first guide rod 13 be arranged on connector part 1 upper end and with the part that expands 2 corresponding connection of bundle part, second guide rod 51 is arranged on the part of Sensor section 5 and the 1 correspondence connection of connector part.But in fact, guide rod can be arranged on either party of corresponding two parts that connect, and that describes in the present embodiment only is a kind of embodiment wherein.

The operation principle of this optical-fiber laser cutting head is as follows:

The spot light that comes out from optical fiber head becomes a branch of directional light through expanding bundle part 2, through focus lamp part 3, this a branch of directional light just is focused into a small spot that meets split requirement, can regulate the upright position of focusing lens 33 by the screw mechanism 32 of regulating 3 li of focus lamp parts, thereby regulate the upright position of focus, the steel plate of cutting different materials different-thickness.

Optical-fiber laser cutting head profile of the present utility model is square, adopts trailing flank to install, and cutting head is difficult for trembling when the laser cutting machine high-speed motion; gas circuit and water route are built-in, and pipe joint 11 is contained in the upper end, has removed mirror unit; expanding bundle part 2 vertically installs; whole small and exquisite, in light weight, good looking appearance; be convenient to protection; protection eyeglass 42 and focusing lens 33 are installed separately, and are convenient to change protection eyeglass 42, and focusing lens 33 also is difficult for contaminated.

Only be the utility model preferred embodiment below, but it does not limit practical range of the present utility model, promptly do not depart from equivalent variations and modification that claim of the present utility model is done, must belong to protection domain of the present utility model.

Claims

1. optical-fiber laser cutting head; its feature comprises: a square connector part; be fixed on this connector part top expansion bundle part, be installed in focus lamp part in the described connector part epicoele, be installed in protective glass part in the described connector part cavity of resorption, be divided in the Sensor section of described connector part below; wherein, described focus lamp part and protective glass part are all inserted from the side and are fixed in the described connector part.

2. optical-fiber laser cutting head according to claim 1 is characterized in that: pipe joint and power lug are equipped with in the upper end in described connector part.

3. optical-fiber laser cutting head according to claim 1 is characterized in that: described expansion bundle part upper end connects the optical fiber head of optical fiber laser.

4. optical-fiber laser cutting head according to claim 1 is characterized in that: described expansion bundle partly adopts water-cooling pattern.

5. optical-fiber laser cutting head according to claim 1, it is characterized in that: described focus lamp partly comprises the focusing mirror holder that focuses on microscope base, is fixed in described focusing microscope base inboard, be positioned at the screw mechanism of described focusing mirror holder upper end, also comprise at least two adjustment screw in the described focusing microscope base outside.

6. optical-fiber laser cutting head according to claim 5 is characterized in that: described screw mechanism is a handwheel.

7. optical-fiber laser cutting head according to claim 1 is characterized in that: described protective glass partly comprises the protection microscope base and is installed in the interior protective glass of a slice at least sheet of this protection microscope base.

8. optical-fiber laser cutting head according to claim 7 is characterized in that: described protection eyeglass is a planar lens.

9. optical-fiber laser cutting head according to claim 1 is characterized in that: be connected with cutting head below described sensor.

10. optical-fiber laser cutting head according to claim 1 is characterized in that: described expansion bundle part all partly is connected with described connector with the guide rod guidance mode with Sensor section.