CN101138808B

CN101138808B - Laser beam welding device used for producing divided type front cover of display apparatus frame

Info

Publication number: CN101138808B
Application number: CN2007101819814A
Authority: CN
Inventors: 曹永一
Original assignee: COGNIZE CORP
Current assignee: COGNIZE CORP
Priority date: 2007-06-14
Filing date: 2007-10-15
Publication date: 2010-08-04
Anticipated expiration: 2027-10-15
Also published as: CN101138808A; KR100864693B1

Abstract

The present invention is a laser welding device adopting laser welding to the dividing device in the equipment which makes the two-divided or four-divided display frame front cover. The laser welding method is used to do automatic welding to the two-divided or four-divided component to reduce the deformation of the component and ensure the product quality, the organic operation of each component effectively embodies the total running process relative to the welding operation and the laser welding device of the divided display frame front cover with increased production efficiency.

Description

Be used to make the laser soldering device of separation type display frame front cover

Technical field

The present invention utilizes the laser weld mode to make 2 to cut apart or 4 separation type display frame front covers, detailed explanation is promptly distinguished individual components punching press and the welding manner of the display frame front cover material of punching press with a kind of brand-new form of the mode of laser weld by two partition members or four partition members, can effectively improve the efficient of production, and improve the quality of products.

Background technology

In recent years, along with the continuous development of information processor, between user and information processor, play the demand sharp increase of the display unit (visual device, device for image) of instrumentality.

Particularly the exploitation of HDTV is finished, and it is especially important that display unit just seems.

Well-known display unit generally comprises: color cathode tube display device (CRT), liquid crystal indicator (LCD), fluorescent display apparatus (VFD), plasma display system (PDP) etc.

But aspect the exploitation of HDTV, gratifying technically display element also is not born, so above-mentioned display unit is being kept the relation of replenishing mutually in the different field the inside.

In above-mentioned display unit, to the liquid crystal indicator and detailed the saying of plasma display system of the status of in competition, having the advantage in recent years.

At first, liquid crystal indicator is to utilize to be infused in the electric of the interior liquid crystal material of LCD panel, and optical property is represented the device of information, in recent years, constantly become television set, computer, field camera, DV, automobile navigation device, the display unit of various information-based machines and communicating machine.

Above-mentioned liquid crystal indicator converts the signal that influences that receives from information processor to the liquid crystal control signal, by the transit dose of liquid crystal adjusting light, needs to adopt the liquid crystal panel assembly make the signal of telecommunication can convert gr image to.

Above-mentioned liquid crystal panel assembly comprises: utilize the liquid crystal panel of liquid crystal display image, thereby be used to receive the printing loop substrate of the display panels signal of telecommunication and connect display panels and the long-pending lightened circuit substrate in tellite minimizing liquid crystal indicator plane.

In addition, because liquid crystal indicator self can not be luminous, so except LCD assembly, the bottom of LCD assembly also needs to be installed as the module backlight that LCD assembly provides light source.

Said modules all is installed in a base plate the inside, thereby avoids being damaged, and back light module group is equipped with in the below of base plate, and the display panels assembly is equipped with in the top of base plate.

Plasma display system is a kind of plasma that utilizes gas discharge to produce, at Plasmia indicating panel (Plasma Display Panel, abbreviation PDP) device of last show image, inject special gas in the plasmatron in plasma display system, after adding high pressure between the plasmatron electrode, be enclosed in layer glass it

Between the plasmatron cell in gas can produce ultraviolet light, and the excited fluophor layer obtain expecting image.

Above-mentioned plasma display system is with Plasmia indicating panel and the display frame base plate that is arranged in parallel in fact with described Plasmia indicating panel basically, between described Plasmia indicating panel and display frame base plate, be close on the display frame base plate heat transfer medium be located at that display frame base plate back connects with described Plasmia indicating panel and the drive circuit that drives the Plasmia indicating panel circuit is formed, described Plasmia indicating panel side combines with front shroud, and described drive circuit side combines with base plate finishes.

Above-mentioned plasma display system has best resolution ratio and illumination ratio in this field, not only answer speed is fast, and be fit to show large-area image, thus be widely used in TV, display, the indoor and outdoor advertisement is with display board etc.

In addition, above-mentioned liquid crystal indicator and plasma display system come off and combine with display frame front cover in order to prevent from simply to assign into display panel assembly in the same base plate.

Described display frame is provided with in order to support extending out of display panel assembly, is divided into display frame front cover and display frame bonnet according to the front and back position that is provided with, by aluminium alloy, and stainless steel, materials such as galvanized steel plain sheet or aluminum-zinc alloy steel plate are made.

This display frame front cover is made through the Sheet Metal Forming Technology of progressive mode or load mode, and undersized be integral type, large-sizedly cuts apart or 4 cuts apart to make up and make by 2.

Cut apart or methods that display frame front cover is made in 4 combinations of cutting apart form are after the part of each partition member is overlapped, to utilize specific template to force the extruding contact-making surface with 2.

But, existing 2 cut apart or the manufacture method of 4 separation type display frame front covers is under the overlapped state of the contact-making surface of parts, pressure is crushed to, set different pressure according to different materials and have certain difficulty, production efficiency is not high, the composition surface of final products has the convex closure of 0.8-1.0mm, can cause certain influence to miscellaneous part, pass through stamping pressure, the mode of utilizing the joint face distortion to engage, excessive stamping pressure can cause the distortion of parts and have defectives such as profile is coarse, and the quality of product is had certain influence.

When after adopting warpage, using the mode of laser weld, all process steps complexity but also the yi word pattern parts are converted into not only

During font, warpage position and parts connecting portion 4 places need use laser weld, at this moment, because slit or two bending sides that bending part produces are inconsistent mutually, laser weld is easy to generate the bad problem of bending part, and these problems not only influence production also can reduce product quality.

The present invention is to the overall process that finally is made into product after raw material supply begins through the stamping procedure of partition member and welding sequence, the separation type display frame front cover production equipments that all carry out automatically, the present invention 2 is cut apart or the partition member of 4 separation type display frame front covers adopts the device of laser weld.

Summary of the invention

The present invention seeks to utilize the mode of laser weld to cut apart or 4 separation type display frame front covers are fixed and definite position, parts are welded, reduce the distortion of parts, guarantee product quality with this to 2.By the organic running of relevant each unit of weld job, improve the laser soldering device of the display frame front cover of production efficient.

Technical scheme of the present invention is: laser soldering device of the present invention in order to achieve the above object can move along X-axis and Y direction, 4 corners are provided with 4 jiaos of frames, and the present invention is by the fixing holder in 4 corners of partition member, X-axis drive motors and X-axis driving ball screw for mobile holder position, Y-axis is with drive motors and contain Y-axis and drive with the mold closing mechanism of ball screw and can be to X-axis by each linear moving-member, Y-axis, Z-direction moves and is fixed on the parts of 2 the above laser-beam welding machines that weld 2 above junctions at least on the mold closing mechanism and forms.

Above mold closing mechanism is distributed in along between the holder of X-axis line permutation arrangement, and mold closing mechanism can be moving to y-axis shift, comprises the fixedly auxiliary holder of the middle part of partition member.

The X-axis of above-mentioned mold closing mechanism drives with ball screw and Y-axis driving and is connected to form 2 combination forms with in the middle of the ball screw by connector, drives 2 holders or 2 groups of holders simultaneously by a motor.

Said fixing seat and a fixing holder distribute and are 90 degree settings, and containing can be moving to X-axis and y-axis shift by clamping cylinder, and the mobile holder of fastening partition member.

Above-mentioned each laser weld parts are distributed in the laser soldering device, and the image of welding position is passed to the control position, and comprising can automatic setting, guarantee the night vision camera machine of position, welding position.

When above-mentioned partition member belongs to 2 partition type parts, four jiaos of frame direction diagonals 2 laser soldering devices are set, 2 composition surfaces of partition member are welded, when partition member belongs to 4 partition type parts, in four corners laser soldering device is set, 4 composition surfaces are welded.

Description of drawings

Below in conjunction with drawings and Examples the present invention is further described:

Fig. 1 is the front thumbnail that is used to make the laser aid of separation type display frame front cover equipment;

Fig. 2,3, Fig. 4 are the front elevation of laser soldering device, plane and side view;

Fig. 5, Fig. 6, Fig. 7 are front elevation, plane and the side view of the mold closing mechanism of laser soldering device of the present invention;

Fig. 8 and Fig. 9 are before laser soldering device is operated in mold closing mechanism and the view after the operation;

Figure 10 is the laser weld parts plane of laser soldering device;

Figure 11 is the side view of the laser weld parts of laser soldering device.

Wherein: 10a, 10b, 10c holder; 11a, 11b X-axis drive motors; 12a, 12b X-axis ball screw; 13 Y-axis drive motors; 14 Y-axis ball screws; 15 mold closing mechanisms; 16a, 16b, the linear moving-member of 16c; 17a, 17b, 17c, 17d laser-beam welding machine; 18 laser soldering devices; 19a, 19b assists holder; 20 connectors; 21 fixation clips; 22 clamping cylinders; 23 moving press plates; 24 night vision camera machines; 25 ball nuts; 26 holder base plates; 27 bases; 28 supports; 29 columns; 30 fixed stations.

As Fig. 1, above-mentioned separation type display frame front cover by from make from raw material 2 cut apart or the partition member stamping procedure 100 of 4 partition type parts, partition member with the partition member of the arrangement of the partition member alignment process of four jiaos of shaped as frame attitude proper alignment, box shape with laser weld operation 120, bottom perforate operation, the box-shaped bending operation of laser weld, begin follow-up stamping procedure 130 such as operation and form.

Separation type display frame front cover by stamping procedure be made into 2 cut apart or 4 partition type partition members after, be combined into finished product and be similar to box structure by the particular arrangement operation, the product that continuation is finished integral type box-shaped attitude by laser weld operation and follow-up stamping procedure is after the display frame front cover, through the washing procedure of removing foreign material, check outbound behind flaw or crooked bad visual examination operation and the smooth operation final packaging.

Fig. 2 is the front elevation of laser soldering device, plane and side view to Fig. 4.

Arrive Fig. 4 as Fig. 2, above-mentioned laser soldering device is formed four jiaos of frame distributed architectures on device top, utilizes laser weld parts 18 that the column 29 in four corners is provided with and each laser weld parts 18 inboard to begin to distribute and the mold closing mechanism 15 that is provided with is in its lower section formed.

Above-mentioned laser weld parts 18 possess 4 covers usually, utilize laser soldering device that the junction of partition member is welded.

Above-mentioned mold closing mechanism 15 utilizes the balanced fixedly method of the suitable position of partition member of holder, and weld under tightening state at 4 places of fastening partition member or 6 places, controls the distortion of welding position to greatest extent, obtains firm welding quality.

By transfer member 140,2 cut apart or 4 partition members are loaded on the mold closing mechanism 15, clamp parts by mold closing mechanism 15 control holders separation, bonding part by laser weld parts 18 operation welder welding partition members, promptly the position that is connected is welded, so partition member forms the display frame front cover of four jiaos of shaped as frame shapes.

Fig. 5 is to front elevation, plane and the side view of Fig. 7 for the mold closing mechanism of laser soldering device of the present invention.

Arrive shown in Figure 7 as Fig. 5,4 or 6 positions of above-mentioned mold closing mechanism 15 fastening partition member when laser weld, 4 holder 10a by 4 corners of fastening partition member, 10b, 10c, the auxiliary holder 19a of 10d and middle part, fastening 2 place, the X-axis drive motors 11a that 19b and these holders of driving move on X-axis and Y-axis, 11b and Y-axis drive motors 13, transmission drive with X-axis and use

ball screw

12a, and 12b and Y-axis drive with ball screw 14 to be formed.

Along Y direction driving ball screw 14 is set under the bearing support, ball screw one side is provided with Y-axis drive motors 13, Y-axis drives with ball screw 14 and uses ball nut 25, be provided with two bases 27 at regular intervals along Y direction, above-mentioned base 27 tops neatly are provided with to drive under the support of bearing along X-direction uses

ball screw

12a, 12b, in ball screw one side X-axis drive motors 11a is set, 11b, at X-axis driving 12a, the last use of 12b ball nut 25 is by

loading holder

10a, 10b, 10c, 4 holder base plates 26 of 10d are formed four jiaos of frame distributed architectures.

Above-mentioned base 27 is fixed on along one group of holder 10a of X line top proper alignment, 10b or 10c, and the corresponding position of Y-axis is provided with

auxiliary holder

19a, 19b between the 10d.

During the change product type, the position of each holder also needs to adjust, drive the drive motors 11a of X-axis, 13,6 holder 10a of 11b and Y-axis drive motors this moment, 10b, 10c, 10d, 19a, therefore 19b can arbitrarily adjust when change of product easily along X-axis and the moving installation site of adjusting of y-axis shift.

Above-mentioned X-axis drives uses

ball screw

12a, 12b, and 14, two screw rods of Y-axis ball screw make up by a connector 20, by two holder 10a that are provided with on the ball screw, 10b or 10c, 10d or 2 groups of

holder

10a, 10b, 19a or 10c, 10d, 19b moves along X-axis or Y direction simultaneously.

The fixing holder 10a of partition member, 10b, 10c, 10d is made up of fixture and drive unit, and fixture supports partition member in interior survey, and drive unit pressurizes to partition member in the outside.

When depression angle is seen holder base plate 26, be that benchmark is provided with 2 moving press plates 23 that are 90 degree angles wherein with a fixation clip 21, moving press plate 23 can be moving along X-axis and y-axis shift by clamping cylinder 22, is placed on partition member 150 on the fixed station 30 by inboard fixation clip 21 and outside moving press plate 23 fixing two ends closely.

Above-mentioned

auxiliary holder

19a, 19b is with the fixing partition member of the form of each fixation clip 21 and moving press plate 23 relative distributions.

Fig. 8 and Fig. 9 are before laser soldering device is operated in mold closing mechanism and the view after the operation.

As Fig. 8 and shown in Figure 9, be placed on being provided with on fixation clip 21 fixed stations of holder and auxiliary holder through the partition member that transmits, clamping cylinder 22 brings into operation simultaneously, promote moving press plate 23 opposite side fixation clips 21, what partition member was firm is fixed between fixation clip and the moving press plate.

The front end of moving press plate 23 utilizes curved surface by the upper surface that stays in the partition member on the fixed station, and you can make the fixing more reliable of partition member.

Figure 10 is the laser weld parts plane of laser soldering device, and Figure 11 is the side view of the laser weld parts of laser soldering device.

As shown in Figure 10 and Figure 11, above-mentioned laser weld parts 18 are by the laser-welding machine 17a at welding partition member link position, 17b, 17c, 17d welds, and is provided with 4 covers, follow the needs according to product type, use 2 covers when welding 2 partition members, 4 covers are all enabled during 4 partition members.

The column 29 of four jiaos of shaped as frame attitudes is set respectively in device 4 corners, top, 3 linear moving-member 16a of integral type are set on

column

29,16b, 16c, these linear moving-members are provided with separately laser-

welding machine

17a, 17b by support along X-direction, Y direction and Z-direction setting on the linear moving-member 16 of Z-direction setting, 17c, 17d.

The linear moving-member 16a of all directions, 16b, when 16c starts working, laser-

beam welding machine

17a, 17b, 17c, 17d can search the welding position of partition member, and welds.

Can operate according to linear moving-member controller setting program, final laser-beam welding machine finds the associated welds position by a series of product instruction that linear moving-member is formulated.

Move the method for linear moving-member and laser-welding machine according to the setting program of controller, can adopt the known technology of association area, and not be subjected to any restriction.

Each laser-beam welding machine 17a in the above-mentioned

laser weld parts

15,17b is provided with a night vision camera machine 24, is provided to the control position after 24 pairs of welding positions of night vision camera machine and the image information shooting on every side.

The image information that night vision camera machine 24 is obtained can be more prone to carry out the position of laser instrument that the welding position is set, the adjustment that guarantees the position, primary position etc. is installed.

Utilize laser soldering device cut apart 2 or 4 partition type partition members to carry out the process of laser weld as follows:

Partition type parts with four jiaos of shaped as frame attitude proper alignment are loaded on the mold closing mechanism 15 after transmitting, 4 corners (other junctions except that the welding position) by mold closing mechanism 15 operation partition members are fixed and clamp, then by laser weld parts two laser-beam welding machine 17a of 18 operations and 17d or 17b and 17c or 4 laser-welding

machine

17a, 17d, 17b, the welding position that 17c reduces to partition member carries out laser weld, the partition member of finishing laser weld forms the box-shaped attitude identical with display frame front cover and makes complete product, and product is through washing, pack after the postprocessing working procedures such as assembling and dispatch from the factory.

Laser soldering device does not have the bending process, can weld the junction surface under former board status, and weld after firmly fixing parts by holder, it is poor not have section, the one's best quality of flat stable can be guaranteed, the dimensionally stable of outward appearance or significant points can be guaranteed.

Claims

1. a laser soldering device that is used to make separation type display frame front cover is characterized in that: comprise mold closing mechanism (15) and laser weld parts (18);

Mold closing mechanism (15) contains:

Along X-axis and Y-axis is transportable and with four jiaos of shaped as frame attitudes be separately positioned on 4 corners of partition member holder (10a, 10b, 10c, 10d);

Make the X-axis drive motors that holder moves along X-axis (11a, 11b) and the X-axis ball screw (12a, 12b);

Make holder along y-axis shift moving Y-axis drive motors (13) and Y-axis ball screw (14);

Laser weld parts (18) contain:

By each linear moving-member (16) can to X-axis, Y direction move and be fixed on mold closing mechanism (15) one sides, the welding two above partition members two above laser-welding machines (17a, 17b).

2. according to the described laser soldering device that is used to make separation type display frame front cover of claim 1, it is characterized in that: one group of holder (10a of proper alignment on the X-axis of described mold closing mechanism (15), 10b or 10c, 10d), be provided with the auxiliary holder that can move along Y direction with described holder, be used for fixing middle part on the partition member length direction (19a, 19b).

3. according to the laser soldering device that is used to make separation type display frame front cover described in claim 1 or 2, it is characterized in that: the ball screw (12a along the X-axis driving of described mold closing mechanism (15), 12b) and in the middle of the ball screw (14) of Y-axis driving form with the form of two combinations, can drive two or two groups of holders simultaneously with a drive motors by connector.

4. according to the laser soldering device that is used to make separation type display frame front cover described in the claim 1, it is characterized in that: in the described laser weld parts (18), each laser-beam welding machine (17a, 17b) a night vision camera machine (24) is set, night vision camera machine (24) is provided to the control position on every side to the welding position and after image information is taken, the image information that night vision camera machine (24) is obtained, can be more prone to carry out laser instrument that the welding position is set the position, guarantee position, the adjustment that primary position is installed.

5. according to the laser soldering device that is used to make separation type display frame front cover described in claim 1 or 4, it is characterized in that: described laser weld parts (18) are when welding 2 partition members, be provided with 2 laser-welding machine (17a in diagonal positions, 17b), and two junctions of partition member are welded, when welding 4 partition members, on four angles of four jiaos of frames, 4 laser-welding machine (17a are set, 17b, 17c, 17d).