CN103785953A

CN103785953A - Laser cutting device

Info

Publication number: CN103785953A
Application number: CN201410036014.9A
Authority: CN
Inventors: 李学林; 张明云; 张伟伟
Original assignee: HEFEI FUHUA PRECISION MACHINERY MANUFACTURING Co Ltd
Current assignee: Hefei Hualin Mould Co., Ltd.
Priority date: 2014-01-24
Filing date: 2014-01-24
Publication date: 2014-05-14
Anticipated expiration: 2034-01-24
Also published as: CN103785953B

Abstract

The invention relates to the technical field of laser cutting, in particular to a laser cutting device. The laser cutting device comprises a fixture used for clamping a shell cover and a driving mechanism driving the fixture to rotate inside a vertical face. An area, to be cut, of the shell cover is exposed out of a fixture body, a laser cutting head is arranged above the area, to be cut, of the shell cover, a gas outlet of a gas pipeline connected with inert gas is formed below the area, to be cut, of the shell cover and corresponds to the laser cutting head in position, and the gas pipeline and the laser cutting head move synchronously. The inert gas is led into the gas pipeline, and the inert gas can cool a cutting area of the laser cutting head and can further isolate oxygen so as to prevent combustion. In addition, the fixture can rotate in the vertical face so as to adjust the posture of itself, the cutting requirements for an arc face are met and cutting of a first flange of the shell cover and a second flange of the shell cover can be realized through one fixture.

Description

Laser cutting device

Technical field

The present invention relates to laser cutting technique field, particularly a kind of laser cutting device.

Background technology

Nonmetallic composite is a kind of mixture, has all brought into play very large effect in a lot of fields, has replaced a lot of traditional materials, and composite is widely used because its performance is good, and when its moulding, the general method covering from level to level that adopts completes.Shown in Fig. 8 is the case cover that a kind of composite is made, it comprises arcwall face 1, arcwall face 1 has two arc-shaped sides parallel to each other and two straight flanges parallel to each other, two arc-shaped side radius of curvature are consistent, postpone respectively and are provided with first and

second flange

2,3 towards convex surface one side in the arc-shaped side of arcwall face 1 and straight flange place, the length that postpones of first and

second flange

2,3 is consistent, or the edge that is referred to as first and

second flange

2,3 is consistent to the distance of arcwall face, on arcwall face 1 and the second flange 2, offer some through holes.Product ontology is by formed in mould, and the through hole arranging on its arcwall face 1 and the second flange 2 cannot use mould molding, needs post-production; In addition, due to formed in mould precision is not high and moulding after product edge not neat, in the time of moulding, the deckle-edged phenomenon in edge of first and

second flange

2,3, needs the later stage to cut it.Case cover is to be made up of composite, and use drill bit punches, cutter carries out edge cuts all easily makes product layering, and therefore, product how to process complex layered formation is the technical barrier of needing solution badly.

Summary of the invention

The object of the present invention is to provide a kind of laser cutting device, can high-qualityly realize offering and the cutting of side of through hole in case cover.

For realizing above object, the technical solution used in the present invention is: a kind of laser cutting device, comprise the fixture for clamping case cover, the driving mechanism that drives fixture to rotate in vertical plane, case cover region to be cut is revealed in outside chuck body, laser cutting head is arranged on top, case cover region to be cut, the gas outlet of the gas piping connected with inert gas is arranged on case cover below, region to be cut and corresponding with the position of laser cutting head, gas piping and laser cutting head synchronous shift.

Compared with prior art, there is following technique effect in the present invention: in gas piping, pass into inert gas, inert gas not only can carry out the cutting zone of laser cutting head cooling, and inert gas can also stop burning by starvation simultaneously; In addition, fixture can rotate to adjust its residing attitude in vertical plane, meets the split requirement of arcwall face, and the cutting of first and second flange of case cover just can realize by a fixture.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention, and wherein fixture is the first fixture;

Fig. 2 is structural representation of the present invention, and wherein fixture is the second fixture;

Fig. 3 is the first clamp structure schematic diagram;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is the second clamp structure schematic diagram;

Fig. 6 is the perspective view that amplify the part of Fig. 5;

Fig. 7 is the side view of the second fixture;

Fig. 8 is the perspective view of case cover.

The specific embodiment

Below in conjunction with Fig. 1 to Fig. 7, the present invention is described in further detail.

Consult Fig. 1, Fig. 2, a kind of laser cutting device, comprise the fixture for clamping case cover, the driving mechanism 10 that drives fixture to rotate in vertical plane, due to the cut direction of laser cutting head 20 straight down always, only depend on the action of laser cutting head 20 can not meet the cutting of case cover arcwall face, the effect of driving mechanism 10 is exactly mainly the spatial attitude of adjusting device provided by the present invention, to meet the relation between position and the laser optical path of corresponding machined surface.It is also feasible that laser cutting head 20 is arranged in vertical plane, to rotate, but structure is too complicated.Case cover region to be cut is revealed in outside chuck body, because the laser direction is here vertical direction, refers to: the upper and lower surface in case cover region to be cut is all visible so the region to be cut of saying is here revealed in outside chuck body.Laser cutting head 20 is arranged on top, case cover region to be cut, the gas outlet 31 of the gas piping 30 connected with inert gas is arranged on case cover below, region to be cut and corresponding with the position of laser cutting head 20, gas piping 30 and laser cutting head 20 synchronous shift, synchronously move upper and lower, all around, in gas piping 30, pass into inert gas, the cutting zone of laser cutting head 20 is carried out to cooling, starvation and stop burning.By this device, can realize the interlayer composite material cutting that this class of case cover is comparatively complicated, and very reliable of cutting process, the product quality after cutting is fine.

Preferably, in order to guarantee that gas piping 30 and laser cutting head 20 can be synchronized with the movement, by adjacent with laser cutting head 20 air inlet of described gas piping 30 32 layout, in addition, gas piping 30 is in motion process, certainly can not with other adjacent component interferences, gas piping 30 is bending and arranges and be in and dodge position with adjacent component, here main is to be staggered with fixture, as shown in Figure 1, Figure 2, what different fixtures was corresponding is the gas piping 30 of different bending shapes, and this need to arrange as the case may be.

Consult Fig. 3, Fig. 4, case cover is by after mould molding, first needs first and second flange of case cover to cut and complete offering of through hole on the second flange, the first fixture 40 is set here and realizes.As preferred embodiment, described fixture comprises the first fixture 40, the first fixture 40 comprises first party plate 41, be arranged on arc on first party plate 41 against unit, arc is made up of spaced apart gusset 43 against unit, gusset 43 is positioned in same cambered surface and forms and coordinate with reclining of case cover arcwall face away from the homonymy edge of first party plate 41, the gusset 43 here has many, wherein two are arranged in parallel, and be arranged vertically four gussets 43 in addition form arc against unit at these 43 of two gussets that are arranged in parallel.On described first party plate 41, be provided with the first locking unit for stationary housing cover, on first party plate 41, offer installing hole and realize the first fixture 40 and be connected with the clutch end of driving mechanism 10.

As preferred version of the present invention, the first described locking unit comprises locking plate 42, locking plate 42 is for being the plate of convex, as shown in Figure 1, the periphery of first party plate 41 offers the first screwed hole 411, the plate face of the shaft core direction of the first screwed hole 411 and first party plate 41 is parallel and perpendicular to first party plate 41 edges at this screwed hole place, be opened in the shaft core direction of the first screwed hole 411 of first party plate 41 long edge positions perpendicular to the long limit of first party plate 41, be opened in the shaft core direction of the first screwed hole 411 at first party plate 41 minor face places perpendicular to the minor face of first party plate 41.The bottom of locking plate 42 is fixed by screws in the first screwed hole 411 places, and the projecting end of locking plate 42 offers through hole, is provided with screw 421 in through hole, and the screw 421 arranging on locking plate 42 and locking plate forms the first described locking unit.Locking plate 42 sizes at diverse location place are different, will meet fixing to case cover, can cutter locking plate 42 while meeting again case cover cutting flange, and as presented in Fig. 1.

When case cover, first the arcwall face of case cover is resisted against to arc on unit in processing, then in the through hole of the top of locking plate 42, packs screw into, screw on first and second flange that screw to the termination of screw is resisted against case cover and can realize the fixing of case cover.Secondly, by laser cutting head 20, first and second flange is cut, rotary clamp makes the face at first and second flange place perpendicular to laser beam direction if desired, and completes offering of hole on the second flange.

Consult Fig. 5, Fig. 6, Fig. 7, after the hole cutting on first and second flange and second flange of case cover, need to offer the hole on arcwall face, realize by the second fixture 50 here.The structure of the second fixture 50 can have multiple, here provide one comparatively preferred embodiment: described fixture comprises the second fixture 50, the second fixture 50 comprises the framework 51 for clamping case cover, described framework 51 is enclosed and is formed by two long limits 511 and two minor faces 512, long limit 511 is circular-arc layout along its length, the radius of curvature on long limit 511 is consistent with the radius of curvature of case cover arcwall face, on long limit 511 and/or minor face 512, be provided with the holder support unit 52 that is L-type for support housing cover, holder support unit 52 is positioned at the inner side of framework 51, on long limit 511 and/or minor face 512, be provided with the second locking unit for stationary housing cover.It should be noted that long limit 511 not necessarily leaves no choice but be circular-arc layout, as long as the holder support unit 52 of offering on long limit 511 is circular-arc layout, provide a kind of preferably scheme here, allow long limit 511 be circular-arc layout, can save material.

Because long limit 511 is longer, effective support of asking support unit 52 can realize case cover is set on long limit 511.As preferred version of the present invention, described holder support unit 52 is arranged on long limit 511, and even interval, long limit 511 layout postpones in holder support unit 52; On described minor face 512, be provided with projection 53, projection 53 is positioned at the inner side of framework 51, and terrace 521 and the projection 53 of holder support unit 52 fit with the flange of case cover, and the table top 522 of holder support unit 52 supports the flange end of cutting back casing cover.Adding man-hour, framework 51, holder support unit 52 and projection 53 are made into integration by an arc square plate.It should be noted that also can on minor face 512, arrange on holder support unit 52, long limit 511 projection is set, as long as it is just passable to realize effective support of case cover.

Further, on described long limit 511, be positioned at holder support 52 places, unit and offer the second screwed hole 513, the shaft core direction of the second screwed hole 513 is parallel with the length direction of minor face 512, the second screwed hole 513 runs through long limit 511, holder support unit 52 arranges, and the screw arranging in the second screwed hole 513 and the second screwed hole 513 forms the second described locking unit.In the present embodiment, on every long limit 511, be provided with five holder support unit 52, offering the second screwed hole 513 near two ends and middle holder support 52 places, unit, three the second screwed holes 513 are enough to realize the effectively fixing of case cover, therefore at each holder support 52 places, unit, the second screwed hole 513. are not set

Be connected with driving mechanism 10 because framework 51 is inconvenient, here preferably, one of them long limit 511 of framework 51 is fixedly connected with second party plate 54, between this length limit and second party plate 54, be provided with reinforcement 55, the plate face of second party plate 54 is perpendicular to the length direction of minor face 511, offers installing hole and realize the second fixture 50 and be connected with the clutch end of driving mechanism 10 on second party plate 54.

Comparatively smooth after first and second flange cutting of case cover, case cover after processing is for the first time put into the second fixture, the end of first and second flange of case cover is resisted against on the table top 522 of holder support unit 52, the terrace 521 of projection, holder support unit 52 and first and second flange laminating simultaneously, then tighten the screw in the second screwed hole 513, when the termination of screw is resisted against on the first flange, realize the fixing of case cover.Then by laser cutting head 20, the hole of case cover arcwall face is cut, in cutting process, need to rotate the second fixture 50 to meet the shaft core direction of hole to be offered and the normal parallel of arcwall face.

No matter be to carry out the cutting of case cover by the first fixture 40 or the second fixture 50, in cutting process, all need to spray to cut place by gas piping 30 inert gas with protection product.

Claims

1. a laser cutting device, it is characterized in that: comprise the fixture for clamping case cover, the driving mechanism (10) that drives fixture to rotate in vertical plane, case cover region to be cut is revealed in outside chuck body, laser cutting head (20) is arranged on top, case cover region to be cut, the gas outlet (31) of the gas piping (30) connected with inert gas is arranged on case cover below, region to be cut and corresponding with the position of laser cutting head (20), gas piping (30) and laser cutting head (20) synchronous shift.

2. laser cutting device as claimed in claim 1, is characterized in that: the air inlet (32) of described gas piping (30) and the adjacent layout of laser cutting head (20), gas piping (30) is bending and arranges and be in and dodge position with adjacent component.

3. laser cutting device as claimed in claim 2, it is characterized in that: described fixture comprises the first fixture (40), the first fixture (40) comprises first party plate (41), be arranged on arc on first party plate (41) against unit, arc is made up of spaced apart gusset (43) against unit, gusset (43) is positioned in same cambered surface and forms and coordinate with reclining of case cover arcwall face away from the homonymy edge of first party plate (41), on described first party plate (41), be provided with the first locking unit for stationary housing cover, on first party plate (41), offering installing hole realizes the clutch end of the first fixture (40) and driving mechanism (10) and is connected.

4. laser cutting device as claimed in claim 3, it is characterized in that: the first described locking unit comprises locking plate (42), locking plate (42) is for being the plate of convex, the periphery of first party plate (41) offers the first screwed hole (411), the plate face of the shaft core direction of the first screwed hole (411) and first party plate (41) is parallel and perpendicular to first party plate (41) edge at this screwed hole place, the bottom of locking plate (42) is fixed by screws in the first screwed hole (411) and locates, the end that suspends of locking plate (42) offers through hole, in through hole, be provided with screw (421), the screw (421) arranging on locking plate (42) and locking plate forms the first described locking unit.

5. laser cutting device as claimed in claim 4, it is characterized in that: described fixture comprises the second fixture (50), the second fixture (50) comprises the framework (51) for clamping case cover, described framework (51) is enclosed and is formed by two long limits (511) and two minor faces (512), long limit (511) is circular-arc layout along its length, the radius of curvature on long limit (511) is consistent with the radius of curvature of case cover arcwall face, on long limit (511) and/or minor face (512), be provided with the holder support unit (52) that is L-type for support housing cover, holder support unit (52) is positioned at the inner side of framework (51), on long limit (511) and/or minor face (512), be provided with the second locking unit for stationary housing cover.

6. laser cutting device as claimed in claim 5, is characterized in that: described holder is supportted unit (52) and is arranged on long limit (511) above, and evenly interval layout of long limit (511) postpones in holder support unit (52); On described minor face (512), be provided with projection (53), projection (53) is positioned at framework (51) inner side, the terrace (521) of holder support unit (52) and projection (53) fit with the flange of case cover, and the table top (522) of holder support unit (52) supports the flange edge of cutting back casing cover.

7. laser cutting device as claimed in claim 5, it is characterized in that: on described long limit (511), be positioned at holder support unit (52) and locate to offer the second screwed hole (513), the shaft core direction of the second screwed hole (513) is parallel with the length direction of minor face (512), the second screwed hole (513) runs through long limit (511), holder support unit (52) arranges, and the screw arranging in the second screwed hole (513) and the second screwed hole (513) forms the second described locking unit.

8. laser cutting device as claimed in claim 5, it is characterized in that: one of them long limit (511) of framework (51) is fixedly connected with second party plate (54), between this length limit and second party plate (54), be provided with reinforcement (55), the plate face of second party plate (54) is perpendicular to the length direction of minor face (511), offers installing hole and realize the second fixture (50) and be connected with the clutch end of driving mechanism (10) on second party plate (54).