CN203407012U

CN203407012U - Diaphragm laser welding device

Info

Publication number: CN203407012U
Application number: CN201320513220.5U
Authority: CN
Inventors: 李曦
Original assignee: Kunshan Steps Brother Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017 Of Cisco
Current assignee: Kunshan Steps Brother Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017 Of Cisco
Priority date: 2013-08-22
Filing date: 2013-08-22
Publication date: 2014-01-22
Anticipated expiration: 2023-08-22

Abstract

The utility model discloses a diaphragm laser welding device. The diaphragm laser welding device enables an outer edge diaphragm, a diaphragm pedestal, or a globe-roof part and an edge part in a composite diaphragm to be welded in a laser heating manner, and substitutes the conventional technology of using the glue to bond the outer edge diaphragm and the diaphragm pedestal. Because the glue is saved during the processing technology process, the whole processing time is shortened. Moreover, by using the laser to weld and solidify directly, a diaphragm and the diaphragm pedestal are welded together, so that the usage intensity and the vibration effect needed by the diaphragm are improved greatly than a glue bonding mode.

Description

Vibrating diaphragm laser soldering device

Technical field

The utility model relates to welding procedure field, particularly a kind of vibrating diaphragm laser soldering device that is specifically applied to Microspeaker, receiver or other acoustical devices.

Background technology

The utility model is mainly used in the welding of the vibrating diaphragm of two kinds of Microspeakers, receiver or other acoustical devices: one is for to be welded to vibrating diaphragm on the base or reinforcing mechanisms of loud speaker or receiver; It is two for to weld the peripheral edge portion of composite diaphragm and central ball top point.

The material that general vibrating diaphragm is used is plastic material, above-mentioned two kinds of products mentioning, manufacturer adopts glue bonding conventionally at present, and traditional processing technology is by glue, vibrating diaphragm and vibrating diaphragm base (or the foreign aid of composite diaphragm part and central ball top point) to be sticked together.Need to apply by a clamping-> glue-> bonding-> dry and (or naturally dry, or illumination curing)-> test five steps, the shortcoming of this technique is to use glue, and bonding intensity is limited, drying or drying needs the long period to be not easy to produce line processing, in whole machining process, need to use special-purpose spot gluing equipment, drying plant, and glue, and after the long-term vibration at high speed of vibrating diaphragm, produce heat and cause glue to lose efficacy, and glue is that a kind of consumptive material is not easy to preserve, bad and the easy generation of controlling is polluted, so the loud speaker limited quality in useful life of its processing is not high.

Summary of the invention

In order to overcome above-mentioned defect, the utility model provides a kind of traditional bonding high-tech vibrating diaphragm laser soldering device of environmental protection of use glue that substitutes.

The utility model for the technical scheme that solves its technical problem and adopt is: a kind of vibrating diaphragm laser soldering device, be applicable to weld vibrating diaphragm and vibrating diaphragm base (or the foreign aid of composite diaphragm part and central ball top point), described laser welding apparatus comprises product clamping fixture to be welded, laser, optical shaping head module, welding manipulator, ccd image watch-dog and human-machine operation master control device, described optical shaping head module is installed on the top of outer rim vibrating diaphragm and vibrating diaphragm base, described welding manipulator connects controls optical shaping head module, described optical shaping head module is connected with laser, described welding manipulator, product clamping fixture to be welded, laser is connected with human-machine operation master control device respectively with ccd image watch-dog.

Further improvement as above-mentioned utility model, described welding manipulator is platform or the robot of X-Y axle diaxon, X-Y-Z three-axis moving, its translational speed is 0-200mm/s, mobile minor face is not limit, walking precision is greater than 0.02mm, laser beam can be walked according to particular track, Ear Mucosa Treated by He Ne Laser Irradiation be arrived to the position that needs welding.

As the further improvement of above-mentioned utility model, described laser is solid state laser, gas laser or fiber laser.

The beneficial effects of the utility model are: the utility model is overturned the vibrating diaphragm production technology of loud speaker and receiver, by laser direct irradiation welding object, omitted gluing bonding process, reduced processing technology step, the more important thing is outward appearance and the quality that can greatly improve vibrating diaphragm product, by laser, directly weld and solidify, vibrating diaphragm and vibrating diaphragm base (or the foreign aid of composite diaphragm part and central ball top point) are welded together, institute reaches the needed working strength of vibrating diaphragm and bass effect is very larger than using the bonding lifting of glue, strengthen the firm degree of its welding, by specific optical shaping system, become us to reach processing effect by needed laser beam the laser shaping of common use. and make so greatly reduce its process time, improved working (machining) efficiency.

Accompanying drawing explanation

Fig. 1 is the utility model vibrating diaphragm laser soldering device schematic diagram;

Fig. 2 is the principle schematic of optical shaping head module;

Fig. 3 is the hot spot figure of laser Output of laser;

Fig. 4 is the hot spot figure of Output of laser after the shaping of optical shaping head module;

In figure, indicate: 1-vibrating diaphragm base clamp; 2-laser; 3-optical shaping head module; 31-the first focus lamp; 32-light mixing optics; 33-the second focus lamp; 34-focus lens group; 4-welding manipulator; 5-ccd image watch-dog; 6-human-machine operation master control device.

Embodiment

In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection range.

Fig. 1 shows a kind of execution mode of a kind of vibrating diaphragm laser soldering device of the utility model, be applicable to weld outer rim vibrating diaphragm and vibrating diaphragm base, described laser welding apparatus comprises vibrating diaphragm base clamp 1, laser 2, optical shaping head module 3, welding manipulator 4, ccd image watch-dog 5 and human-machine operation master control device 6, described optical shaping head module 3 is installed on the top of outer rim vibrating diaphragm and vibrating diaphragm base, described welding manipulator 4 connects controls optical shaping head module 3, described optical shaping head module 3 is connected with laser 2, described welding manipulator 4, vibrating diaphragm base clamp 1, laser 2 is connected with human-machine operation master control device 6 respectively with ccd image watch-dog 5, described welding manipulator 4 is X-Y axle gantry manipulator, its translational speed is 20-50mm/s, mobile minor face is greater than 200mmX200mm, walking precision is greater than 0.1mm.

The vibrating diaphragm laser welding processing technology that it utilizes the said equipment to carry out, comprises the following steps:

1) by vibrating diaphragm base clamp 1, vibrating diaphragm and vibrating diaphragm base are clamped to basic gapless between described vibrating diaphragm and vibrating diaphragm base welding contact site with pressure; Described vibrating diaphragm base clamp can be tight by vibrating diaphragm and the clamping of vibrating diaphragm base, in order to reach the requirement being adjacent to of laser welding, vibrating diaphragm base clamp is comprised of pneumatic gripping device or electrical-controlled lifting platform or other motion modes, Pneumatic clamping or motor clamping device are in order to clamp vibrating diaphragm and vibrating diaphragm base, and electrical-controlled lifting platform is in order to controlled working object and laser output distance;

2) adjust laser 2, laser is semiconductor optical fibre coupled laser, and the spot size that makes its Output of laser is 400um, and numerical aperture NA is 0.22, and power output is less than 300W, and Output of laser light beam is taper diverging light beam; Can to it, carry out the group selection of processing technology data by human-machine operation master control device, this semiconductor optical fibre coupled laser can be stored 64 groups of process datas for adapting to different welding requirements, thereafter plate has I/O mouth control function, can select the laser work group needing by I/O, and control pilot light output and Laser output.This laser itself can be stored 64 groups of laser processing data, every group of process data can have 15 sections of power and bright dipping time to set, its setting laser output time least unit is 1ms, this laser output interface function is that human-machine operation master control device needs design separately, and can control laser setup parameter by RS485 communication interface;

3) LASER Light Source of laser 2 outputs becomes the required laser of welding after 3 shapings of optical shaping head module; Optical shaping head module 3 as shown in Figure 2, can be by optical shaping by the point-like Gaussian Profile laser facula (as shown in Figure 3) of laser 2 outputs, be shaped as energy even distribution laser facula (as shown in Figure 4), by the first focus lamp 31, change cone-shaped beam into directional light, by a slice light mixing optics 32, laser energy is uniformly distributed, by the second focus lamp 33, light beam is become to directional light again, then by focus lens group 34, focus of the light beam in the focus that needs processing;

4) laser facula covering outer rim vibrating diaphragm and the vibrating diaphragm base by 5 observation adjustment optical shaping head module 3 outputs of ccd image watch-dog needs welding position;

5) start welding manipulator 4 operation laser outer rim vibrating diaphragm and vibrating diaphragm base welding part are welded, ccd image watch-dog 5 is observed welding result and takes pictures and keep on file; Described welding manipulator 4 is X-Y axle gantry manipulator, and its translational speed is 20-50mm/s, and mobile minor face is greater than 200mmX200mm, and walking precision is greater than 0.1mm, laser beam can be walked according to particular track, Ear Mucosa Treated by He Ne Laser Irradiation is arrived to the position that needs welding;

6) unclamp vibrating diaphragm base clamp 1, take out the processing work after welding.

Above-mentioned whole operating process realizes by human-machine operation master control device 6, described human-machine operation master control device 6 is comprised of Touch Screen and control circuit board and control interface, Pneumatic clamping in order to sequential control fixture, the movement of electrical-controlled lifting platform, laser pilot light is exported and is closed, laser device laser is exported and is closed, these actions of Laser output processing work group selection during work, the state of its control device is presented on screen, by CCD, the workpiece manuscript of monitoring is looked like to be presented on screen.

Claims

1. a vibrating diaphragm laser soldering device, be applicable to weld the Fen Yu marginal portion, ball top in vibrating diaphragm and vibrating diaphragm base or composite diaphragm, it is characterized in that: described laser welding apparatus comprises the fixture (1) that clamps product to be welded, laser (2), optical shaping head module (3), welding manipulator (4), ccd image watch-dog (5) and human-machine operation master control device (6), described optical shaping head module (3) is installed on the top of product to be welded, described welding manipulator (4) connects controls optical shaping head module (3), described optical shaping head module (3) is connected with laser (2), described welding manipulator (4), vibrating diaphragm base clamp (1), laser (2) is connected with human-machine operation master control device (6) respectively with ccd image watch-dog (5).

2. vibrating diaphragm laser soldering device according to claim 1, is characterized in that: described welding manipulator (4) is platform or the robot of X-Y axle diaxon, X-Y-Z three-axis moving, and its translational speed is 0-200mm/s, and walking precision is greater than 0.02mm.

3. vibrating diaphragm laser soldering device according to claim 1, is characterized in that: described laser (2) is solid state laser, gas laser or fiber laser.