CN212019783U - Workpiece conveying device for laser cutting and laser cutting machine - Google Patents

Abstract

The utility model discloses a workpiece conveying device and laser cutting machine for laser cutting, it includes: a frame; the workpiece supporting piece is arranged on the frame and used for supporting a workpiece to be processed and shunting and guiding air flow generated in the laser cutting process; and the driving assembly is arranged on the frame and is used for driving the workpiece bearing piece to rotate so as to convey the workpiece to be processed to a preset position. The utility model discloses can carry out high-efficient water conservancy diversion to the waste residue waste gas that produces in laser cutting head spun gas and the cutting process to improve updraft ventilator's convulsions effect, avoid granule such as smoke and dust, waste residue to be reflected on work piece and other parts simultaneously.

Description

Workpiece conveying device for laser cutting and laser cutting machine

Technical Field

The utility model relates to a laser cutting field specifically is a workpiece transfer device and laser cutting machine for laser cutting.

Background

The laser cutting has the advantages of high cutting speed, high production efficiency, small heat affected zone and the like, becomes one of the main cutting modes of the metal plate, and is widely applied to the field of plate processing.

Among the current chain laser cutting machine, the conveying toothed plate is the dull and stereotyped cutting usually and forms, is the upright state mostly, leads to the structure insecure because of the atress is inhomogeneous easily, influences the normal clear of machining flow.

Meanwhile, when the laser cutting machine is used for cutting, gas can be sprayed along with the cutting head, and the gas can be reflected by relevant parts of the cutting platform or the lathe bed, so that impurities such as smoke dust particles and dust can be adhered to the lower surface of the plate, and the surface of the plate can generate indentation after being processed by the next stamping procedure, so that the quality problem exists on the surface of the stamped plate; meanwhile, a large amount of waste slag and waste gas are generated in the cutting process, and if the waste slag and the waste gas are not timely pumped away from a cutting area, the waste slag can splash onto precision parts of a machine tool, such as a guide rail or a combustible part, and the precision and the service life of the machine tool and the cutting head are further influenced.

For solving above-mentioned problem, the solution that adopts at present is many as shown in application number 201821103166.6 "cavity formula laser cutting machine lathe bed", be equipped with updraft ventilator and carry out convulsions to corresponding region, but above-mentioned updraft ventilator can't carry out effective water conservancy diversion to waste residue waste gas to lead to the convulsions effect not good.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a workpiece transfer device and laser cutting machine for laser cutting, it can carry out high-efficient water conservancy diversion, reposition of redundant personnel to the waste residue waste gas that produces in laser cutting head spun gas and the cutting process to improve updraft ventilator's exhaust effect, avoid on particles such as smoke and dust, waste residue are reflected work piece and other parts simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme:

in one aspect, a workpiece conveying device for laser cutting is provided, which includes: a frame; the workpiece supporting piece is arranged on the frame and used for supporting a workpiece to be processed and shunting and guiding air flow generated in the laser cutting process; and the driving assembly is arranged on the frame and is used for driving the workpiece bearing piece to rotate so as to convey the workpiece to be processed to a preset position.

Preferably, the workpiece support comprises: a bottom connector; the bottom end of the inclined piece is connected with the bottom connecting piece and is obliquely arranged relative to the bottom connecting piece; the support piece is connected with the upper end of the oblique piece and is used for supporting the workpiece to be processed; the flow distribution and the flow guide of the airflow generated in the laser cutting process are completed through the oblique piece and the supporting piece.

Preferably, the included angle theta between the bottom connecting piece and the oblique piece is 30-60 degrees.

Preferably, the support is a toothed structure.

In another aspect, there is also provided a laser cutting machine including: the lathe bed is provided with an air suction opening; the workpiece conveying device is arranged on the lathe bed and is used for conveying the workpiece to be processed to a preset position; the cross beam is connected with the lathe bed; the laser cutting head is arranged on the cross beam and is positioned above the workpiece conveying device; and the air draft device is communicated with the air suction opening.

Preferably, the bed includes: the air suction device comprises a bed body, a suction pipe and a suction pipe, wherein the bed body is provided with an air suction opening communicated with the air suction device; the blanking units are all arranged on the lathe body, at least two adjacent blanking units are communicated with each other, and at least one blanking unit is communicated with the air suction opening; its characterized in that, laser cutting machine lathe bed still includes: and the flow guide part is connected with the 2 adjacent blanking units so as to guide the gas generated during laser cutting.

Preferably, the blanking unit includes: the first panel, the second panel, the third panel, the fourth panel and the bottom plate are connected in sequence, one or more of the first panel, the second panel, the third panel and the fourth panel are obliquely arranged relative to a horizontal plane, and an inclination angle alpha formed when the first panel, the second panel, the third panel and the fourth panel are obliquely arranged is 30-80 degrees.

Preferably, the flow guide member includes: the first inclined plate is connected with one of the two adjacent blanking units, and the second inclined plate is connected with the other of the two adjacent blanking units.

Preferably, the first inclined plate and the second inclined plate integrally form an isosceles triangle-shaped wedge structure.

Preferably, the laser cutting machine further includes: and the square tube is connected with the frame, and the diagonal line of the square tube is perpendicular to the motion direction of the workpiece to be processed.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses at first the bottom connecting piece of each other one-tenth contained angle of accessible, slant piece increase the holistic firm degree of structure, the air current that still can make when cutting simultaneously produce (including laser cutting head spun gas and the cutting waste gas that includes waste residue, smoke and dust, dust granule) downward flow, in bearing unit, square pipe inclined plane, the reposition of redundant personnel of wedge water conservancy diversion spare, the water conservancy diversion enters into the blanking unit in proper order, and is further, the waste residue also can be collected in the blanking unit along the panel landing that the slope set up, the air current is further guided to flow downwards through the panel inclined plane simultaneously, further cooperation updraft ventilator's negative pressure effect will the air current fully discharges outside the fuselage. In this process, because the air current is in succession by each panel guide downflow of bearing unit, square pipe inclined plane, wedge water conservancy diversion spare, slope setting, when improving convulsions efficiency, the air current and wherein waste residue, smoke and dust, dust granule that contain can not be reflected by other parts, the adhesion to cutting panel or other cutting parts on, guarantee the quality of cutting panel from this, make it satisfy the requirement of follow-up panel cutting stamping process to surface cleanliness factor.

Drawings

Fig. 1 is an overall structure diagram of a workpiece conveying device for laser cutting according to a first embodiment of the present invention;

fig. 2 is a side view of a frame and a driving assembly of an embodiment of the present invention;

fig. 3a is a partial structural view of a supporting unit, a first endless chain, and a first connecting position according to a first embodiment of the present invention;

FIG. 3b is a partial block diagram of a supporting unit, a second endless chain, and a second connecting position according to a first embodiment of the present invention;

figure 4a is a front view of a support unit according to one embodiment of the present invention;

figure 4b is a side view of a support unit according to one embodiment of the present invention;

fig. 5 is a side view of the frame and the driving assembly from another perspective according to an embodiment of the present invention;

fig. 6a is a side view of a workpiece conveying device for laser cutting according to a first embodiment of the present invention;

FIG. 6b is a side view at A of FIG. 6 a;

fig. 7 is an overall structure diagram of a laser cutting machine according to a second embodiment of the present invention;

fig. 8 is an overall structural view of a bed of a laser cutting machine according to a second embodiment of the present invention;

fig. 9 is a top view of a bed of a laser cutting machine according to a second embodiment of the present invention;

fig. 10 is a schematic view illustrating a connection between the diversion member and the blanking unit according to a second embodiment of the present invention;

fig. 11 is a sectional view of a second embodiment of the present invention;

fig. 12 is a side view of a square tube in the second embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

the present embodiment provides a workpiece conveying device for laser cutting, as shown in fig. 1, including: a frame 100, which may be made of channel steel or the like; a workpiece support 200 mounted on the frame 100 for supporting a workpiece to be processed, the workpiece including a plate material for laser cutting; a driving assembly mounted on the frame 100 for driving the workpiece support 200 to rotate to transfer the workpiece to be processed to a predetermined position.

Specifically, as shown in fig. 2, the frame 100 includes: a support leg 103; and a first pin 101 and a second pin 101 disposed in parallel with each other.

As shown in fig. 2, 3a-3b, the workpiece support 200 comprises: a first endless chain 201 provided on one side of the first bar 101; a plurality of first connecting positions 203, which are connected with the first endless chain 201; a second endless chain 202 provided on one side of the second link 102; a plurality of second connecting positions 204, each of which is connected to the second endless chain 202, and each of the second connecting positions 203 is disposed opposite to one of the first connecting positions 203; and a plurality of supporting units 205, one end of each supporting unit 205 is connected with a first connecting position 203, the other end is connected with a second connecting position 204 which is arranged opposite to the first connecting position 203, and the workpiece to be processed is supported by the supporting units 205.

Further, as shown in fig. 4a-4b, the racking unit 205 comprises: a bottom connector 2051, one end of which is connected to a first connection position 203 and the other end of which is connected to a second connection position 204 arranged opposite to the first connection position 203; a diagonal member 2052, the bottom end of which is connected to the bottom connector 2051 and is arranged obliquely relative to the bottom connector 2051, preferably, an included angle θ formed by the bottom connector 2051 and the diagonal member 2052 is 30-60 ° (preferably 45 °); and a support member 2053 connected to an upper end of the diagonal member 2052 and supporting the workpiece to be processed; for ease of manufacture, the bottom connectors 2051, the diagonal members 2052, and the support members 2053 may be integrally formed, and the support members 2053 are preferably teeth-like structures, so that the entire support unit 205 is a non-upright structure, and the bottom connectors 2051 and the diagonal members 2052 are angled to increase the firmness of the entire structure.

As shown in fig. 2 and 5, the driving assembly includes: a first driving gear 302 mounted on the first rod 101; a second driving gear 302' mounted on the second rod 201 and disposed opposite to the first driving gear 302; a driving shaft 301, both ends of which are respectively connected with a first driving gear 302 and a second driving gear 302' correspondingly; a first driven gear 304 mounted on the first rod 101; a second driven gear 304' mounted on the second rod 201 and disposed opposite to the second driven gear 304; a driven shaft 303, both ends of which are respectively and correspondingly connected with the first driving gear 302 and the second driving gear 302'; a motor assembly 305 connected to the first driving gear 302/the second driving gear 302 'for driving the first driving gear 302/the second driving gear 302' to rotate; the first endless chain 201 is disposed around the first driving gear 302 and the first driven gear 304, and the second endless chain 202 is disposed around the second driving gear 302 'and the second driven gear 304'.

Thus, as shown in fig. 6a-6b, when the motor assembly 305 drives the driving gear to rotate, the driving gear drives the endless chain to rotate through the meshing action between the driving gear and the endless chain, and further, the workpiece to be processed is driven to move to the lower part of the laser cutting head P along the operation direction shown by the new arrow in fig. 6a, and further, as shown in fig. 6b, the gas flow ejected from the laser cutting head P during cutting and the gas flow S' containing waste residue, smoke, dust particles, etc. generated during cutting are divided and guided by the slant member 2052 and the support member 2053 of the holder unit 205 along the hollow arrow direction, so that the air flow flows downwards under the guidance of the inclined plane and cannot be reflected and adhered to workpieces, machine bodies and relevant parts of machine tools, therefore, the processing quality of the workpiece is influenced, and the requirement of the subsequent plate cutting and stamping process on the surface cleanliness is met.

Example two:

the present embodiment provides a laser cutting machine, as shown in fig. 7, which includes: the lathe bed 300 is provided with an air suction opening 11; the workpiece conveying device 400 according to embodiment 1, which is provided on the bed 100, and is configured to convey a workpiece to be machined to a predetermined position; a cross beam 500 connected to the bed 300; a laser cutting head 600 mounted on the beam 500 and located above the workpiece transfer device 400; an air extracting device (such as a fan, etc., not shown) is communicated with the air suction opening 11.

As shown in fig. 8 to 9, the bed 300 in the present embodiment includes: the air exhaust device comprises a machine body 1, wherein an air suction port 11 communicated with an air exhaust device (such as a fan and the like, not shown) is formed in the machine body 1; the blanking units 2 are all arranged on the lathe bed main body 1, at least two adjacent blanking units 2 are communicated with each other, and at least one blanking unit 2 is communicated with the air suction opening 11; and the flow guide piece 3 is connected with the adjacent 2 blanking units so as to guide the gas generated during laser cutting.

Specifically, the blanking unit 2 includes: a first panel 21, a second panel 22, a third panel 23, a fourth panel 24 and a base plate 25 which can be opened and closed, which are connected in sequence; and one or more of the first panel 21, the second panel 22, the third panel 2 and the fourth panel 24 are disposed to be inclined with respect to the horizontal plane, preferably, as shown in fig. 3, the inclination angle α formed when one or more of the first panel 21, the second panel 22, the third panel 23 and the fourth panel 24 are disposed to be inclined with respect to the horizontal plane is 30 to 80 ° (preferably, 45 °), in the present embodiment, all of the first panel 21, the second panel 22, the third panel 2 and the fourth panel 24 are disposed to be inclined with respect to the horizontal plane, and the first inclination angle α is 30 to 80 ° (preferably, 45 °). Thus, the air flow (including waste gas containing waste residues) in any orientation can be guided downward by the inclined surface and is not reflected to the cutting plate, the machine body and the relevant parts of the machine tool.

In addition, two adjacent panels of the two blanking units 2 close to each other are provided with through holes 26 communicated with each other, the aperture of each through hole 26 is 3-5cm (preferably 4cm), meanwhile, the through holes 26 are covered with the louver boards 4, and all/part of the open holes of the louver boards 4 can be opened and closed, so that the flow of the air flow can be controlled by opening and closing the open holes of the louver boards 4 according to actual needs.

Further, as shown in fig. 10 to 11, the flow guide 3 includes: a first inclined plate 31 connecting one of the two adjacent blanking units 2 and a second inclined plate 32 connecting the other of the two adjacent blanking units 2, for example, the first inclined plate 31 may be connected with the fourth plate 24 of one blanking unit 2, and the second inclined plate 32 may be connected with the first plate 21 of the other blanking unit 2; and the first sloping plate 31 and the second sloping plate 32 integrally form an isosceles triangle-shaped wedge structure, preferably, the base angle β of the isosceles triangle is 20-30 ° (preferably 25 °); for convenience of manufacturing, the first inclined plate 31 and the second inclined plate 32 may be integrally formed.

When the cutting machine works, the air draft device is started, the workpiece conveying device 400 conveys the workpiece to be processed to the lower part of the laser cutting head 600, the laser cutting head 600 cuts the workpiece, meanwhile, the opening of the louver board 4 is opened, the air flow (including the gas ejected by the laser cutting head and the waste gas containing waste slag, smoke dust and dust particles generated by cutting) generated during cutting flows downwards, and is firstly divided and guided by the inclined piece 2052 and the supporting piece 2053 of the bearing unit 205, the air flow is guided by the inclined plane to continuously flow to the lathe bed 300, then enters the blanking unit 2 through the flow distribution and the flow guidance of the wedge-shaped flow guide piece 3, and further, the waste slag slides down to the bottom plate 25 of the blanking unit 2 along the obliquely arranged panel to be collected, meanwhile, the airflow is further guided to flow downwards through the inclined plane of the panel, and the airflow is fully discharged out of the machine body by further matching with the negative pressure effect of the air draft device. In the process, the airflow is guided to flow downwards by the guide pieces 3 and the obliquely arranged panels in sequence, so that the air draft efficiency is improved, and meanwhile, the airflow and waste residues, smoke dust, dust particles and the like contained in the airflow cannot be reflected and adhered to the cutting plate or other cutting parts by other parts, so that the quality of the cutting plate is ensured, and the requirements of a subsequent plate cutting and stamping process on surface cleanliness are met.

Example three:

the difference between the present embodiment and the second embodiment is only that the laser cutting machine in the present embodiment further includes: a waste trolley (not shown) located in the blanking unit 2 for collecting waste falling from the blanking unit 2; and a square tube 700 as shown in fig. 2 and 12, wherein one end of the square tube 700 is connected with the first rod 101 after passing through the first annular chain 201, the other end of the square tube 700 is connected with the second rod 102 after passing through the second annular chain 202, and a diagonal line of the square tube 700 is perpendicular to a movement direction of a workpiece to be processed.

From this, the air current that produces during the cutting (including laser cutting head spun gas and the cutting production contain the waste residue, smoke and dust, the waste gas of dust granule) downward flow, at first shunted by the slant piece 2052 of bearing unit 205 and support piece 2053, after the water conservancy diversion, still can be shunted by the inclined plane of square pipe 700 again, the refluence, then continue downwards through the reposition of redundant personnel of wedge water conservancy diversion piece 3, the water conservancy diversion enters into blanking unit 2 in, further prevent to contain the waste residue, smoke and dust, the waste gas air current reflection of dust granule is to the work piece on, influence workpiece quality.

Simultaneously, the waste gas air current that includes waste residue, smoke and dust, dust particle enters into blanking unit 2 through reposition of redundant personnel, the water conservancy diversion of wedge water conservancy diversion spare 3 in, further, the waste residue is collected on blanking unit 2's bottom plate 25 along the panel landing that the slope set up, further opens the bottom plate 25 that can open and shut, and the waste material of collection can fall into the waste material dolly and carry away.

To sum up, the utility model provides a work piece conveyer and laser cutting machine can make the air current that produces during the cutting (including the waste gas that laser cutting head spun is gaseous and the cutting produced includes waste residue, smoke and dust, dust granule) downward flow, in bearing unit, square pipe inclined plane, wedge water conservancy diversion spare's reposition of redundant personnel, water conservancy diversion enter into the blanking unit in proper order, and is further, the waste residue also can be followed the panel landing that the slope set up and collected in the blanking unit, and the air current is further guided through the panel inclined plane and is flowed down simultaneously, and further cooperation updraft ventilator's negative pressure effect will the air current fully discharges outside the fuselage. In this process, because the air current is in succession by each panel guide downflow of bearing unit, square pipe inclined plane, wedge water conservancy diversion spare, slope setting, when improving convulsions efficiency, the air current and wherein waste residue, smoke and dust, dust granule that contain can not be reflected by other parts, the adhesion to cutting panel or other cutting parts on, guarantee the quality of cutting panel from this, make it satisfy the requirement of follow-up panel cutting stamping process to surface cleanliness factor.

It should be noted that the technical features of the above embodiments 1 to 3 can be arbitrarily combined, and the technical solutions obtained by combining the technical features belong to the scope of the present application. And in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A workpiece conveying device for laser cutting is characterized by comprising: a frame; the workpiece supporting piece is arranged on the frame and used for supporting a workpiece to be processed and shunting and guiding air flow generated in the laser cutting process; and the driving assembly is arranged on the frame and is used for driving the workpiece bearing piece to rotate so as to convey the workpiece to be processed to a preset position.

2. The workpiece transfer apparatus for laser cutting according to claim 1, wherein the workpiece support comprises: a bottom connector; the bottom end of the inclined piece is connected with the bottom connecting piece and is obliquely arranged relative to the bottom connecting piece; the support piece is connected with the upper end of the oblique piece and is used for supporting the workpiece to be processed; the flow distribution and the flow guide of the airflow generated in the laser cutting process are completed through the oblique piece and the supporting piece.

3. The workpiece conveying apparatus for laser cutting according to claim 2, wherein the bottom link and the diagonal member form an angle θ of 30 to 60 °.

4. The workpiece conveying apparatus for laser cutting according to claim 2, wherein the support member is a toothed structure.

5. A laser cutting machine, characterized by comprising: the lathe bed is provided with an air suction opening; the workpiece conveying apparatus according to any one of claims 1 to 4, which is provided on the bed, for conveying a workpiece to be processed to a predetermined position; the cross beam is connected with the lathe bed; the laser cutting head is arranged on the cross beam and is positioned above the workpiece conveying device; and the air draft device is communicated with the air suction opening.

6. The laser cutting machine according to claim 5, wherein the bed includes: the air suction device comprises a bed body, a suction pipe and a suction pipe, wherein the bed body is provided with an air suction opening communicated with the air suction device; the blanking units are all arranged on the lathe body, at least two adjacent blanking units are communicated with each other, and at least one blanking unit is communicated with the air suction opening; the laser cutting machine further includes: and the flow guide part is connected with the 2 adjacent blanking units so as to guide the gas generated during laser cutting.

7. The laser cutting machine according to claim 6, wherein the blanking unit includes: the first panel, the second panel, the third panel, the fourth panel and the bottom plate are connected in sequence, one or more of the first panel, the second panel, the third panel and the fourth panel are obliquely arranged relative to a horizontal plane, and an inclination angle alpha formed when the first panel, the second panel, the third panel and the fourth panel are obliquely arranged is 30-80 degrees.

8. The laser cutter of claim 6, wherein the flow guide comprises: the first inclined plate is connected with one of the two adjacent blanking units, and the second inclined plate is connected with the other of the two adjacent blanking units.

9. The laser cutting machine according to claim 8, wherein the first swash plate and the second swash plate are integrally formed as an isosceles triangular wedge structure.

10. The laser cutter of claim 9, further comprising: and the square tube is connected with the frame, and the diagonal line of the square tube is perpendicular to the motion direction of the workpiece to be processed.

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