CN216370650U - Laser welding tool and laser welding system for high-strength steel workpiece - Google Patents
Laser welding tool and laser welding system for high-strength steel workpiece Download PDFInfo
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- CN216370650U CN216370650U CN202121123370.6U CN202121123370U CN216370650U CN 216370650 U CN216370650 U CN 216370650U CN 202121123370 U CN202121123370 U CN 202121123370U CN 216370650 U CN216370650 U CN 216370650U
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Abstract
The utility model discloses a laser welding tool and a laser welding system for a high-strength steel workpiece, which comprise: the first positioning assembly is used for positioning the strip-shaped main body and the first connecting body; the first clamping assembly is used for keeping the first connecting body and the upper surface of the strip-shaped main body in a fit state in a pressure applying mode; the second positioning assembly is connected with a second connecting body and a third connecting body of the high-strength steel workpiece for positioning; the second clamping assembly is used for keeping the second connecting body in a fit state with the first side face of the strip-shaped main body and keeping the third connecting body in a fit state with the second side face of the strip-shaped main body in a pressure applying mode; and a control unit. The utility model is specially designed aiming at the characteristics of high strength and high rigidity of high-strength steel, can effectively and quickly position and clamp a high-strength steel workpiece, avoids stress deformation in the welding process and ensures the welding precision and stability of the workpiece.
Description
Technical Field
The utility model relates to the field of laser welding, in particular to a laser welding tool and a laser welding system for a high-strength steel workpiece.
Background
With the increasing global environment and energy crisis, energy conservation and emission reduction become important subjects faced by the automobile manufacturing industry, and a large number of researches show that the reduction of the body-in-white quality of automobiles is an effective measure for reducing oil consumption, so that the automobile lightweight technology becomes the development trend of the current automobile industry.
In order to achieve the purpose of light weight of automobiles, at present, high-strength steel is mostly adopted to replace common steel, the thickness specification of steel plates is reduced, and the like, and the parts are welded by combining an advanced laser welding process. However, because the high-strength steel workpiece has high strength and large rigidity, and the weldability of the high-strength steel workpiece is poorer than that of common low-carbon steel, how to overcome welding stress deformation and ensure the welding precision and stability of parts when the high-strength steel workpiece, such as various automobile parts, is welded by laser is a problem to be solved urgently in the field of laser welding.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a laser welding tool and a laser welding system for a high-strength steel workpiece, which are specially designed aiming at the characteristics of high strength and high rigidity of the high-strength steel, can be used for effectively and quickly positioning and clamping the high-strength steel workpiece, avoids stress deformation in the welding process and ensures the welding precision and stability of the workpiece.
In order to achieve the purpose, the utility model provides the following technical scheme:
on the one hand, provide a laser welding frock of high strength steel work piece, it includes:
the first positioning assembly is used for positioning the strip-shaped main body and the first connecting body of the high-strength steel workpiece, so that the first connecting body is partially/completely attached to the upper surface of the strip-shaped main body;
the first clamping assembly is used for keeping the first connecting body and the upper surface of the strip-shaped main body in a fit state in a pressure applying mode;
the second positioning assembly is connected with the first positioning assembly and used for positioning a second connecting body and a third connecting body of the high-strength steel workpiece, so that the second connecting body is partially/completely attached to the first side surface of the strip-shaped main body, and the third connecting body is partially/completely attached to the second side surface of the strip-shaped main body;
the second clamping assembly is used for keeping the second connecting body in a fit state with the first side face of the strip-shaped main body and keeping the third connecting body in a fit state with the second side face of the strip-shaped main body in a pressure applying mode;
and the control unit is connected with one or more of the first positioning assembly, the first clamping assembly, the second positioning assembly and the second clamping assembly so as to control one or more of the first positioning assembly, the first clamping assembly, the second positioning assembly and the second clamping assembly to generate corresponding actions.
Preferably, the first positioning component includes:
a plurality of positioning support columns arranged along the Y direction;
the upper end surface of each positioning support column is connected with at least one first Z-direction positioning block, and the first Z-direction positioning blocks are used for supporting the strip-shaped main body and positioning the strip-shaped main body in the Z direction;
the first positioning pin is connected with the positioning support column and extends upwards in the Z direction, and the same first positioning pin is matched with the positioning holes in the bar-shaped main body and the first connecting body at the same time, so that the first connecting body is partially/completely attached to the upper surface of the bar-shaped main body under the action of self gravity, and the bar-shaped main body and the first connecting body are positioned in the X/Y direction at the same time.
Preferably, the first clamping assembly comprises:
a first cylinder;
the overturning arm is hinged with the telescopic end of the first cylinder;
the pressing block mounting cross beam is connected with the turnover arm;
the plurality of Z-direction pressing blocks are connected with the bottoms of the pressing block mounting beams;
the linear telescopic motion of the telescopic end of the first air cylinder drives the overturning arm and the pressing block mounting cross beam to synchronously rotate around a hinge point of the overturning arm and the telescopic end of the air cylinder, so that the Z moves towards the bar-shaped main body and the first connecting body which are positioned by the first positioning component towards the pressing block until the pressing block contacts with the first connecting body and exerts pressure on the bar-shaped main body in the Z direction, and the first connecting body is kept in a fit state with the upper surface of the bar-shaped main body.
Preferably, the first clamping assembly further comprises:
and the rotating cylinder is used for clamping the press block mounting beam when the press block mounting beam rotates in place and the Z-direction press block is in contact with the first connecting body and applies pressure to the first connecting body.
Preferably, the second positioning assembly comprises:
the second Z-direction positioning blocks are connected with the upper end surfaces of the positioning support columns, and at least one second Z-direction positioning block is arranged on each of two sides of the first Z-direction positioning block in the X direction, wherein the second Z-direction positioning block positioned on one side of the first Z-direction positioning block is used for supporting the second connecting body and positioning the second connecting body in the Z direction, and the second Z-direction positioning block positioned on the other side of the first Z-direction positioning block is used for supporting the third connecting body and positioning the third connecting body in the Z direction;
and the second positioning pin is arranged close to the second Z-direction positioning block, extends in the Z direction and is used for being matched with the positioning holes in the second connector and the third connector respectively so as to realize the X/Y-direction positioning of the second connector and the third connector.
Preferably, the second clamping assembly comprises:
and the other group of piano type pneumatic clamping mechanisms apply pressure to the third connecting body, so that the third connecting body and the second side surface of the strip-shaped main body are kept in a fit state.
Preferably, each key type pneumatic clamping mechanism is provided with a plurality of key pressing blocks arranged along the Y direction and second air cylinders for driving the key pressing blocks to move, and the key pressing blocks generate key type clamping actions under the driving of the second air cylinders so as to apply pressure to the second connecting body in the X direction or apply pressure to the third connecting body in the X direction.
Preferably, the laser welding tool further comprises: an air knife coupled to the first positioning assembly and/or coupled to the second clamping assembly.
Preferably, the laser welding tool further comprises: and the detection switch is connected with the first positioning assembly and/or the second clamping assembly and is used for detecting whether the strip-shaped main body and/or the first connecting piece and/or the second connecting piece and/or the third connecting piece are fixed in place or not.
On the other hand, still provide a laser welding equipment, it includes above-mentioned laser welding frock to and laser welding head, and utilize above-mentioned laser welding frock to press from both sides tight fixed back to high strength steel work piece, laser welding head welds the laminating department of first connecting piece, second connector, third connector and bar main part, forms the welding seam.
Compared with the prior art, the utility model has the following beneficial effects:
1. the laser welding tool is particularly suitable for clamping and fixing high-strength steel workpieces (such as strip-shaped workpieces like a battery tray beam) with the characteristics of high strength, high rigidity and the like;
2. the utility model ensures that all parts can keep a fit state at different positions through piano key type pressing (Z-direction pressing block and piano key pressing block), thereby overcoming welding stress deformation and ensuring welding quality;
3. the actions of the air cylinder, the positioning pin and the like are electrically and automatically controlled through the control unit, the actions of the positioning pin expansion, the air cylinder start and stop and the like can be automatically completed by manually triggering the button after loading, and welding can be implemented after one-time assembly, positioning and clamping, so that the production efficiency is greatly improved, and the manual operation intensity is reduced;
4. the pressing block mounting beam is clamped through the rotary cylinder, so that the pressing block mounting beam is in a locking state, the clamping force of the rotary cylinder is transmitted to a high-strength steel workpiece through the pressing block mounting beam, the welding deformation generated in the subsequent welding process is further overcome, and the welding precision and stability are guaranteed.
Drawings
FIG. 1a is an overall structural view of a high strength steel workpiece from one perspective;
FIG. 1b is a general structural view of a high strength steel workpiece from another perspective;
FIG. 1c is a top view of a high strength steel workpiece;
FIG. 1d is a front view of a high strength steel workpiece;
FIG. 2a is an overall structural view of the first clamping assembly of the laser welding tool of the present invention clamping a high strength steel workpiece from a perspective;
FIG. 2b is a general view of the first clamping assembly of the laser welding tool of the present invention releasing a high strength steel workpiece from the same perspective as FIG. 2 a;
FIG. 3a is a general block diagram of a first positioning assembly of the present invention;
FIG. 3b is a view showing a state where a high-strength steel workpiece is clamped and fixed by the first positioning member according to the present invention;
FIG. 4a is a schematic view of the first clamping assembly of the laser welding tool of the present invention clamping a high strength steel workpiece from another perspective;
FIG. 4b is an overall block diagram of the first clamping assembly of the present invention;
FIG. 4c is a top view of the first clamping assembly of the present invention;
FIG. 5a is a schematic view of a second positioning assembly and a second clamping assembly according to the present invention;
FIG. 5b is a view of the second positioning assembly of FIG. 5a with the second and third connecting members fixed;
FIG. 5c is a view of the second positioning assembly of the present invention in a state of fixing the second connecting member;
FIG. 6 is a block diagram of a second clamping assembly of the present invention from another perspective;
FIG. 7a is a partial block diagram of FIG. 4b at A;
fig. 7B is a partial structural view of the part B in fig. 5 a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1a to 1d, the high-strength steel workpiece 100 in the present embodiment includes: a strip-shaped body 1 having an upper surface S1 and a lower surface S2 parallel to each other, and a first side surface S3 and a second side surface S4 parallel to each other; a first connector 2 that is attached to an upper surface S1 of the bar-shaped body 1 in the longitudinal direction of the bar-shaped body 1; a second connector 3 attached to the first side surface S3 of the bar-shaped body 1 in the longitudinal direction of the bar-shaped body 1, and a third connector 4 attached to the second side surface S4 of the bar-shaped body 1 in the longitudinal direction of the bar-shaped body 1, the second connector 3 and the third connector 4 being symmetrically disposed with respect to the bar-shaped body 1; one or more of the first connecting body 2, the second connecting body 3, the third connecting body 4 and the strip-shaped main body 1 are made of high-strength steel, and meanwhile, the first connecting body 2 and/or the second connecting body 3 and/or the third connecting body 4 are strip-shaped pieces; for example, the high-strength steel workpiece in this embodiment may be a cross beam of a battery tray of an automobile, the bar-shaped body 1 is a rectangular tube, the first connecting body 2 is a U-shaped cover attached to an upper surface of the rectangular tube, and the second connecting body 3 and the third connecting body 4 are L-shaped pieces respectively corresponding to two side surfaces of the rectangular tube.
In addition, the present embodiment provides a laser welding tool capable of clamping and fixing the high-strength steel workpiece 100, as shown in fig. 2a to 2b, including:
a base plate 10;
a first positioning member 20 mounted on the base plate 10, for positioning the bar-shaped main body 1 and the first connecting body 2 such that the first connecting body 2 is partially/completely attached to the upper surface S1 of the bar-shaped main body 1; further, the bar-shaped main body 1 is positioned by the first positioning component 20 to be in an upright or nearly upright state;
a first clamping assembly 30 mounted on the base plate 10 for maintaining the first connecting body 2 in a state of being attached to the upper surface S1 of the bar-shaped main body 1 by applying pressure;
a second positioning member 40 connected to the first positioning member 20 for positioning the second connecting body 3 and the third connecting body 4 such that the second connecting body 3 is partially/completely attached to the first side surface S3 of the bar-shaped main body 1 and the third connecting body 4 is partially/completely attached to the second side surface S4 of the bar-shaped main body 1;
a second clamping assembly 50 mounted on the base plate 10 for maintaining the second connecting body 3 in a state of being attached to the first side surface S3 of the bar-shaped main body 1 and the third connecting body 4 in a state of being attached to the second side surface S4 of the bar-shaped main body 1 by means of applying pressure;
and the control unit is connected with one or more of the first positioning assembly 20, the first clamping assembly 30, the second positioning assembly 40 and the second clamping assembly 50 to control one or more of the first positioning assembly 20, the first clamping assembly 30, the second positioning assembly 40 and the second clamping assembly 50 to generate corresponding actions.
Further, as shown in fig. 3a-3b, the first positioning component 20 includes:
a plurality of positioning support columns 201 are arranged along the Y direction, and preferably, 2 positioning support columns 201 are provided;
a plurality of first Z-direction positioning blocks 202, wherein the upper end surface of each positioning support column 201 is connected with at least one first Z-direction positioning block 202, and the first Z-direction positioning blocks 202 are used for supporting the strip-shaped main body 1 and positioning the strip-shaped main body in the Z direction; at this time, the upper surface S1 of the bar-shaped body 1 is positioned above the lower surface S2;
the first positioning pin 203 is connected with the positioning support column 201 and extends in the Z direction, and the same first positioning pin 203 is simultaneously matched with the positioning holes on the strip-shaped main body 1 and the first connecting body 2 (as the same first positioning pin 203 simultaneously penetrates through the positioning hole on the strip-shaped main body 1 and the positioning hole on the first connecting body 2), so that the first connecting body 2 is partially/completely attached to the upper surface S1 of the strip-shaped main body 1 under the action of self gravity, and the X/Y direction positioning of the strip-shaped main body 1 and the first connecting body 2 is simultaneously realized; in this embodiment, each positioning support column 201 is correspondingly connected to a first positioning pin 203.
As shown in fig. 4a-4c, the first clamping assembly 30 includes:
a first cylinder 301, which may be several, such as 2;
a turning arm 302, which is hinged with the telescopic end of the first cylinder 301 through a hinge 3021 arranged at the end, and the central axis Y' of the hinge 3022 extends along the Y direction;
a briquette mounting cross beam 303 connected to the turning arm 302;
a plurality of Z-direction press blocks 304 which are connected with the bottom of the press block mounting beam 303 and are uniformly arranged at intervals along the Y direction;
the overturning arm 302 and the pressing block mounting beam 303 extend in the Y direction; the turning arm 302 and the press block mounting beam 303 are driven by the linear telescopic motion of the telescopic end of the first cylinder 301 to synchronously rotate around the hinge point 3022 of the turning arm 302 and the telescopic end of the cylinder 301 (i.e. the direction indicated by the arrow in fig. 4 b), so that the Z-direction press block 304 moves towards the bar-shaped main body 1 and the first connecting body 2 which are positioned by the first positioning component 20 until contacting the first connecting body 2 and applying pressure to the first connecting body in the Z direction, so that the first connecting body 2 and the upper surface S1 of the bar-shaped main body 1 keep a fitting state.
As shown in fig. 3a, 5a-5c, the second positioning assembly 40 comprises:
a plurality of second Z-directional positioning blocks 401 connected to the upper end surface of the positioning support column 201, and in the X direction, at least one second Z-directional positioning block 401 is respectively disposed on each of two sides of the first Z-directional positioning block 202, wherein the second Z-directional positioning block 401 located on one side of the first Z-directional positioning block 202 is configured to support the second connector 3 and perform Z-directional positioning thereon, and the second Z-directional positioning block 401 located on the other side of the first Z-directional positioning block 202 is configured to support the third connector 4 and perform Z-directional positioning thereon; further, the first Z-direction positioning block 202 and the second Z-direction positioning block 401 have the same structure, and the first Z-direction positioning block 202 and the second Z-direction positioning block 401 are arranged side by side in the X direction, so that the bar-shaped main body 1 positioned by the first Z-direction positioning block 202, the second connecting body 3 positioned by the second Z-direction positioning block 401, and the third connecting body 4 are close to each other;
and a second positioning pin 402, disposed close to the second Z-directional positioning block 401, and extending in the Z direction, for respectively matching with the positioning holes of the second connector 3 and the third connector 4 (for example, a second positioning pin 402 passes through the positioning hole of the second connector 3, and another second positioning pin 402 passes through the positioning hole of the third connector 4), so as to realize X/Y directional positioning of the second connector 3 and the third connector 4, and make the second connector 3 partially/completely fit with the first side surface S3 of the bar-shaped main body 1, and make the third connector 4 partially/completely fit with the second side surface S4 of the bar-shaped main body 1.
As shown in fig. 2a-2b, 5a-5c, 6, the second clamping assembly 50 includes:
two sets of piano-type pneumatic clamping mechanisms 501, each of which is connected to the base plate 10, are symmetrically arranged in the X direction with respect to the positioned bar-shaped main body 1; one group of the piano-type pneumatic clamping mechanisms 501 applies pressure to the second connecting body 3 to enable the second connecting body 3 to be kept in a joint state with the first side surface S3 of the strip-shaped main body 1, and the other group of the piano-type pneumatic clamping mechanisms 501 applies pressure to the third connecting body 4 to enable the third connecting body 4 to be kept in a joint state with the second side surface S4 of the strip-shaped main body 1;
furthermore, each piano type pneumatic clamping mechanism 501 is provided with a plurality of key pressing blocks 502 arranged along the Y direction and second air cylinders 503 for driving the key pressing blocks 502 to move, the key pressing blocks 502 are driven by the second air cylinders 503 to generate piano type clamping actions and move towards the second connecting bodies 3 positioned by the second positioning assemblies 40 so as to apply pressure to the second connecting bodies 3 in the X direction, so that the second connecting bodies 3 are kept in a fit state with the first side surface S3 of the strip-shaped main body 1, or apply pressure to the third connecting bodies 4 in the X direction, so that the third connecting bodies 4 are kept in a fit state with the second side surface S4 of the strip-shaped main body 1; preferably, the plurality of piano type pneumatic clamping mechanisms 501 in the embodiment may be arranged along the Y direction, so that different positions of the second connecting body 3 and the third connecting body 4 can be clamped, and all positions of the second connecting body 3 and the third connecting body 4 can be kept close to the strip-shaped main body 1, thereby ensuring the subsequent welding quality.
Further, in this embodiment, the first positioning pin 203 and the second positioning pin 402 are both telescopic pins, the control unit is respectively connected to one or more of the first positioning pin 203, the second positioning pin 402, the first air cylinder 301 and the second air cylinder 503 to control one or more of the first positioning pin 203, the second positioning pin 402, the first air cylinder 301 and the second air cylinder 503 to generate corresponding actions according to a preset program, and the control may be implemented by a trigger button or the like;
for example, the stretching of the first positioning pin 203 and/or the second positioning pin 402 is controlled, the first air cylinder 301 and the second air cylinder 503 are started, the turnover arm 302 is further driven to turn over, the key pressing block 502 is driven to move, and the like, so that the person can conveniently carry out the loading and unloading operation.
During working, the strip-shaped main body 1 is placed on the first Z-direction positioning block 202, the strip-shaped main body 1 is in an upright state or a nearly upright state, the upper surface S1 of the strip-shaped main body is upward, then the positioning holes of the strip-shaped main body 1 and the first connecting body 2 are aligned, and the control assembly controls the first positioning pin 203 to extend out and simultaneously penetrate through the positioning hole of the strip-shaped main body 1 and the positioning hole of the first connecting body 2, so that the X/Y-direction positioning of the strip-shaped main body 1 and the first connecting body 2 is realized simultaneously;
then the control assembly starts the first air cylinder 301, the linear telescopic motion of the telescopic end of the first air cylinder 301 drives the overturning arm 302 to rotate around the overturning arm 302 and the hinge point 3022 of the telescopic end of the air cylinder 301, so that the first Z-direction pressing block 304 moves towards the strip-shaped main body 1 and the first connecting body 2 which are positioned by the first positioning assembly 20 until the first Z-direction pressing block contacts with and applies Z-direction pressure to the first connecting body 2, so that the first connecting body 2 and the upper surface S1 of the strip-shaped main body 1 are kept in a fit state;
starting a laser welding device to weld, and forming a welding seam P1 (shown in FIG. 1 a) at the joint of the first connecting body 2 and the strip-shaped main body 1;
then, the second connecting body 3 and the third connecting body 4 are correspondingly placed on the second Z-direction positioning blocks 401 at two sides of the first Z-direction positioning block 202, and the control assembly controls the second positioning pin 402 to extend out so as to correspondingly pass through the positioning holes on the second connecting body 3 and the third connecting body 4, so that the X/Y-direction positioning of the second connecting body 3 and the third connecting body 4 is realized;
then the control component starts a second air cylinder 503, the key pressing block 502 generates a piano type clamping action under the driving of the second air cylinder 503, and moves towards the second connecting body 3 and the third connecting body 4 which are positioned by the second positioning component 40, so as to apply pressure to the second connecting body 3 and the third connecting body 4 in the X direction, and the second connecting body 3 and the third connecting body 4 are correspondingly kept in a fit state with the first side surface S3 and the second side surface S4 of the strip-shaped main body 1;
starting a laser welding device to weld, and forming a welding seam P2 (shown in FIG. 1 a) at the joint of the second connecting body 3, the second side surface S4 and the strip-shaped main body 1;
after the welding is completely finished, the control assembly starts the first air cylinder 301 again, the first air cylinder 301 is driven by the linear telescopic motion of the telescopic end of the first air cylinder 301 to rotate reversely around the hinge point 3022 of the telescopic end of the first air cylinder 301 and the turnover arm 302, so that the first Z-direction pressing block 304 is far away from the welded high-strength steel workpiece 100, the pressure on the first connecting body 2 and the strip-shaped main body 1 is relieved, the control assembly starts the second air cylinder 503 again, the key pressing block 502 is driven by the second air cylinder 503 to move reversely and is far away from the welded second connecting body 3 and the welded third connecting body 4, and the pressure applied to the second connecting body 3 and the welded third connecting body 4 is relieved;
and then the first positioning pin 203 and the second positioning pin 402 of the control assembly retract, the high-strength steel workpiece 100 is withdrawn, and subsequent personnel can take the workpiece.
Therefore, the laser welding tool in the embodiment is simple and practical in structural design, is particularly suitable for clamping and fixing high-strength steel workpieces (such as strip-shaped workpieces like battery tray beams) with the characteristics of high strength, high rigidity and the like, and is particularly used for carrying out key type pressing on the strip-shaped main body 1, the first connecting body 2 and the second connecting body 3 in the length direction through the Z-direction pressing block 304 and the key pressing block 502 to ensure that all parts can be kept in a fit state at different positions, so that welding stress deformation is overcome, and the welding precision and stability of the parts are ensured; simultaneously, the action of cylinder, locating pin etc. all carries out electric automatic control through the control unit, and the manual trigger button can accomplish the flexible, the cylinder of locating pin opens and stops action such as automatically after the completion of loading, can implement the welding after once adorning, the location is pressed from both sides tightly to this improves production efficiency by a wide margin, reduces manual work intensity.
Example 2:
the present embodiment differs from embodiment 1 only in that, as shown in fig. 4b to 4c, the first clamping assembly 30 further includes: the rotary cylinder 305 is connected with the base plate 10 and is used for clamping the briquetting mounting cross beam 303 when the briquetting mounting cross beam 303 rotates to a proper position and the Z-direction briquetting 304 is in contact with the first connecting body 2 and applies pressure to the first connecting body, so that the briquetting mounting cross beam 303 is in a locking state, the clamping force of the rotary cylinder 305 is transmitted to the high-strength steel workpiece 100 through the briquetting mounting cross beam 303, the welding deformation generated in the subsequent welding process is further overcome, and the welding precision and stability are ensured;
the sliding block 306 is connected with the pressing block mounting beam 303, the sliding rail 307 is connected with the turning arm 302, or the sliding block 306 is connected with the turning arm 302, and the sliding rail 307 is connected with the pressing block mounting beam 303, so that the pressing block mounting beam 303 and the turning arm 302 are movably connected through the matching of the sliding block 306 and the sliding rail 307, and the pressing block mounting beam 303 and the Z-direction pressing block 304 can be conveniently detached and replaced according to welding requirements.
Example 3:
the present embodiment is different from embodiment 1 or 2 only in that, as shown in fig. 7a-7b, the Z-direction pressing block 304 and/or the key pressing block 502 has the disc spring 60, so that the Z-direction pressing block 304 and/or the key pressing block 502 has an elastic clamping function, and can further clamp the workpiece through the elasticity of the disc spring 60 to compensate the gap error of the abutting surface of the workpiece, so that the workpiece is always in a close-fitting state, the welding quality of the workpiece is ensured, and the welded workpiece has the same strength as the base material.
Example 4:
the present embodiment is different from embodiment 1, 2 or 3 only in that, as shown in fig. 5a to 4c, 6, the laser welding tool capable of clamping and fixing the high-strength steel workpiece 100 further includes:
an air knife 70 connected to the lower portion of the compact mounting beam 303 and disposed close to the Z-direction compact 304 and/or connected to the piano-type pneumatic clamping mechanism 501 and disposed close to the piano-type compact 502, thereby blowing air to the welding area through the air knife 70, promoting air convection at the welding area, the Z-direction compact 304 and/or the piano-type compact 502, achieving a cooling effect, avoiding heat accumulation during batch welding, and thus improving welding quality;
and a detection switch 80 (such as an infrared sensor and other photoelectric switches) connected with the positioning support column 201 of the first positioning assembly 20 and/or connected with the piano type pneumatic clamping mechanism 501 of the second clamping assembly 50 and used for detecting whether the strip-shaped main body 1 and/or the first connecting piece 2 and/or the second connecting piece 3 and/or the third connecting piece 4 are fixed in place or not, so that the fool-proof design is adopted, and production accidents or unqualified welding quality caused by missing and incomplete clamping of workpieces are prevented.
Example 5:
the embodiment provides a laser welding apparatus, which includes: the laser welding tool and the laser welding head are used in any one of embodiments 1 to 4, and after the high-strength steel workpiece 100 is clamped and fixed by the laser welding tool in any one of embodiments 1 to 4, the laser welding head welds the joint of the first connecting piece 2, the second connecting piece 3, the third connecting piece 4 and the strip-shaped main body 1 to form a corresponding welding seam.
In conclusion, the laser welding tool disclosed by the utility model is simple and practical in structural design, is particularly suitable for clamping and fixing high-strength steel workpieces (such as strip-shaped workpieces like battery tray beams) with the characteristics of high strength, high rigidity and the like, and particularly performs key type pressing on the strip-shaped main body 1, the first connecting body 2 and the second connecting body 3 in the length direction through the Z-direction pressing block 304 and the key pressing block 502 to ensure that all parts can be kept in a fit state at different positions, so that welding stress deformation is overcome, welding quality is ensured, and the pressing block mounting beam is further strongly clamped through the rotary cylinder to ensure welding precision and stability; simultaneously, the action of cylinder, locating pin etc. all carries out electric automatic control through the control unit, and the manual trigger button can accomplish the flexible, the cylinder of locating pin opens and stops action such as automatically after the completion of loading, can implement the welding after once adorning, the location is pressed from both sides tightly to this improves production efficiency by a wide margin, reduces manual work intensity.
It should be noted that, 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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a laser welding frock of high strength steel work piece which characterized in that includes:
the first positioning assembly is used for positioning the strip-shaped main body and the first connecting body of the high-strength steel workpiece, so that the first connecting body is partially/completely attached to the upper surface of the strip-shaped main body;
the first clamping assembly is used for keeping the first connecting body and the upper surface of the strip-shaped main body in a fit state in a pressure applying mode;
the second positioning assembly is connected with the first positioning assembly and used for positioning a second connecting body and a third connecting body of the high-strength steel workpiece, so that the second connecting body is partially/completely attached to the first side surface of the strip-shaped main body, and the third connecting body is partially/completely attached to the second side surface of the strip-shaped main body;
the second clamping assembly is used for keeping the second connecting body in a fit state with the first side face of the strip-shaped main body and keeping the third connecting body in a fit state with the second side face of the strip-shaped main body in a pressure applying mode;
and the control unit is connected with one or more of the first positioning assembly, the first clamping assembly, the second positioning assembly and the second clamping assembly so as to control one or more of the first positioning assembly, the first clamping assembly, the second positioning assembly and the second clamping assembly to generate corresponding actions.
2. The laser welding tool of claim 1, wherein the first positioning assembly comprises:
a plurality of positioning support columns arranged along the Y direction;
the upper end surface of each positioning support column is connected with at least one first Z-direction positioning block, and the first Z-direction positioning blocks are used for supporting the strip-shaped main body and positioning the strip-shaped main body in the Z direction;
the first positioning pin is connected with the positioning support column and extends upwards in the Z direction, and the same first positioning pin is matched with the positioning holes in the bar-shaped main body and the first connecting body at the same time, so that the first connecting body is partially/completely attached to the upper surface of the bar-shaped main body under the action of self gravity, and the bar-shaped main body and the first connecting body are positioned in the X/Y direction at the same time.
3. The laser welding tool of claim 1, wherein the first clamping assembly comprises:
a first cylinder;
the overturning arm is hinged with the telescopic end of the first cylinder;
the pressing block mounting cross beam is connected with the turnover arm;
the plurality of Z-direction pressing blocks are connected with the bottoms of the pressing block mounting beams;
the linear telescopic motion of the telescopic end of the first air cylinder drives the overturning arm and the pressing block mounting cross beam to synchronously rotate around a hinge point of the overturning arm and the telescopic end of the air cylinder, so that the Z moves towards the bar-shaped main body and the first connecting body which are positioned by the first positioning component towards the pressing block until the pressing block contacts with the first connecting body and exerts pressure on the bar-shaped main body in the Z direction, and the first connecting body is kept in a fit state with the upper surface of the bar-shaped main body.
4. The laser welding tool of claim 3, wherein the first clamping assembly further comprises:
and the rotating cylinder is used for clamping the press block mounting beam when the press block mounting beam rotates in place and the Z-direction press block is in contact with the first connecting body and applies pressure to the first connecting body.
5. The laser welding tool of claim 2, wherein the second positioning assembly comprises:
the second Z-direction positioning blocks are connected with the upper end surfaces of the positioning support columns, and at least one second Z-direction positioning block is arranged on each of two sides of the first Z-direction positioning block in the X direction, wherein the second Z-direction positioning block positioned on one side of the first Z-direction positioning block is used for supporting the second connecting body and positioning the second connecting body in the Z direction, and the second Z-direction positioning block positioned on the other side of the first Z-direction positioning block is used for supporting the third connecting body and positioning the third connecting body in the Z direction;
and the second positioning pin is arranged close to the second Z-direction positioning block, extends in the Z direction and is used for being matched with the positioning holes in the second connector and the third connector respectively so as to realize the X/Y-direction positioning of the second connector and the third connector.
6. The laser welding tool of claim 1, wherein the second clamping assembly comprises:
and the other group of piano type pneumatic clamping mechanisms apply pressure to the third connecting body, so that the third connecting body and the second side surface of the strip-shaped main body are kept in a fit state.
7. The laser welding tool of claim 6, wherein each key type pneumatic clamping mechanism is provided with a plurality of key pressing blocks arranged along the Y direction and second air cylinders for driving the key pressing blocks to move, and the key pressing blocks are driven by the second air cylinders to generate key type clamping actions so as to apply pressure to the second connecting body in the X direction or apply pressure to the third connecting body in the X direction.
8. The laser welding tool of claim 1, further comprising: an air knife coupled to the first positioning assembly and/or coupled to the second clamping assembly.
9. The laser welding tool of claim 1, further comprising: and the detection switch is connected with the first positioning assembly and/or the second clamping assembly and is used for detecting whether the strip-shaped main body and/or the first connecting piece and/or the second connecting piece and/or the third connecting piece are fixed in place or not.
10. A laser welding apparatus, characterized by comprising: the laser welding tool of any one of claims 1 to 9, and a laser welding head, wherein after the laser welding tool of any one of claims 1 to 9 is used for clamping and fixing the high-strength steel workpiece, the laser welding head welds the joint of the first connecting piece, the second connecting piece, the third connecting piece and the strip-shaped main body to form a welding seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121123370.6U CN216370650U (en) | 2021-05-25 | 2021-05-25 | Laser welding tool and laser welding system for high-strength steel workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121123370.6U CN216370650U (en) | 2021-05-25 | 2021-05-25 | Laser welding tool and laser welding system for high-strength steel workpiece |
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| Publication Number | Publication Date |
|---|---|
| CN216370650U true CN216370650U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121123370.6U Active CN216370650U (en) | 2021-05-25 | 2021-05-25 | Laser welding tool and laser welding system for high-strength steel workpiece |
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| Country | Link |
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| CN (1) | CN216370650U (en) |
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2021
- 2021-05-25 CN CN202121123370.6U patent/CN216370650U/en active Active
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