CN111761221A - An automatic laser welding device with high working efficiency - Google Patents

Abstract

The invention discloses an automatic laser welding device with high working efficiency, which comprises a workbench, a housing, two groups of linear moving modules, two workpiece clamping plates, two groups of pneumatic positioning mechanisms, a three-axis moving mechanism and a laser welding device, wherein the two groups of linear moving modules are respectively and longitudinally arranged on the workbench, the two workpiece clamping plates are respectively arranged on the linear moving modules, the laser welding device is arranged on the three-axis moving mechanism, and the three-axis moving mechanism is arranged on two sides of the rear end of the workbench. According to the invention, two groups of linear moving modules are arranged on the workbench for feeding, and the stations are switched for welding through the three-axis moving mechanism, so that feeding, discharging and welding processes are simultaneously carried out, the waiting time of a laser welder in workpiece replacement is reduced, and the production efficiency of welded workpieces is effectively improved; the workpiece clamping plate is arranged, so that a workpiece to be welded can be positioned to improve the welding precision; the pneumatic positioning mechanism can compact the space between two workpieces, and the welding quality of the workpieces is effectively improved.

Description

An automatic laser welding device with high working efficiency

technical field

The invention relates to the field of laser welding devices, in particular to an automatic laser welding device with high working efficiency.

Background technique

Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source to fuse two workpieces together by using a laser beam. It is a new type of welding method, mainly for the welding of thin-walled materials and precision parts, and can realize spot welding, butt welding and sealing welding, etc. The advantages of smooth and beautiful welds, high weld quality and no pores.

In the prior art, the traditional laser welders are all one-to-one welding methods, and each workbench is provided with only one workstation. During the welding process, workers are required to stack two workpieces to be welded on the workstations, and then The two workpieces are welded by a laser welder. Only after the workpieces are welded, the worker can remove the welded workpieces, and the next group of workpieces to be welded can be placed on the workstation for welding. This welding method does not work efficiently. High, will make the laser welder in a long-term standby state, unable to reasonably and effectively use the characteristics of the laser welder to work continuously and efficiently, resulting in a decrease in the production efficiency of the workpiece to be welded and the company's income; During the high-speed travel of the workpiece, the two workpieces to be welded are easily displaced under the action of inertia, which causes the laser welder to be misaligned with the workpiece to be welded, thereby reducing the welding accuracy of the workpiece; at the same time, during the welding process, if the two workpieces are The workpieces are not compacted, resulting in a gap between the upper and lower workpieces, which also affects the quality of laser welding.

Therefore, the prior art has shortcomings and needs to be improved.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an automatic laser welding device with high automation degree, convenient operation, stable clamping and high welding precision and high working efficiency.

The technical scheme of the present invention is as follows: an automatic laser welding device with high working efficiency, comprising a worktable, a cover, two sets of linear moving modules, two workpiece clamping plates, two sets of pneumatic positioning mechanisms, a three-axis moving mechanism, and For the laser welder, the cover is arranged at the rear end of the worktable, the two sets of linear movement modules are respectively arranged vertically on the workbench, and the two workpiece clamping plates are respectively arranged on the linear movement module. The pneumatic positioning mechanism is respectively arranged on the cover above the end of the linear moving module, and the laser welder is arranged on the three-axis moving mechanism. The shaft moving mechanism is located in the housing;

The linear movement module includes a mounting seat, a servo motor, a rotating screw, a screw nut, two first sliding rails and a plurality of first sliding blocks. The seat is set at the bottom of the worktable, the rotating screw is sleeved on the mounting seat, and the rotating screw is located under the chute, the output shaft of the servo motor is connected with the rotating screw, and the screw nut is sleeved On the rotating screw, the top of the screw nut is connected to a workpiece clamping plate, the first slide rails are respectively arranged on the worktables on both sides of the chute, and the two sides of the bottom of the workpiece clamping plate pass through the first slide rail respectively. A sliding block is connected with the first sliding rail;

The pneumatic positioning mechanism includes a fixed plate, two connecting plates, two air cylinders and two rubber pressing blocks, the fixed plate is connected with the side wall of the casing, and the two sides of the bottom of the fixed plate are respectively connected with the air cylinder through the connecting plates, The piston end of the cylinder is connected with the rubber pressing block.

With the above technical solution, in the automatic laser welding device with high working efficiency, the three-axis moving mechanism includes a Y-axis moving component, an X-axis moving module, a Z-axis moving module and two bases. The seats are respectively arranged on the left and right sides of the worktable. The Y-axis moving assembly includes a Y-axis moving module, a second slide rail and a second sliding block. The Y-axis moving module is arranged on the base on the left side of the worktable. , the second slide rail is arranged on the base on the right side of the workbench, the left side of the X-axis moving module is connected with the Y-axis moving module, and the right side of the X-axis moving module is connected with the second slider through the The second slide rail is connected, the Z-axis moving module is connected with the X-axis moving module, and the laser welder is arranged on the Z-axis moving module.

According to the above technical solutions, in the automatic laser welding device with high working efficiency, the middle of the fixing plate is provided with an avoidance groove which is convenient for the laser welder to perform laser welding.

According to the above technical solutions, in the automatic laser welding device with high working efficiency, two clamping blocks with the same structure are provided on the workpiece clamping plate, and the clamping blocks have an L-shaped structure. The clamping block is arranged at the front end of the workpiece clamping plate, and the other clamping block is arranged at the rear end of the workpiece clamping plate.

According to the above technical solutions, in the automatic laser welding device with high working efficiency, the clamping block is made of rubber material.

According to the above technical solutions, in the automatic laser welding device with high working efficiency, a support disc and a universal pulley are respectively provided on the four corners of the bottom of the worktable, and a screw rod is provided on the top of the support disc. , the screw is connected with the workbench through a thread.

According to the above technical solutions, in the automatic laser welding device with high working efficiency, a glass window is provided on the front side, left side and right side of the housing, which is convenient for observing the working state.

By adopting the above technical solutions, in the present invention, two sets of linear moving modules are set on the worktable to carry out feeding and welding of the workpiece to be welded, and the three-axis moving mechanism is used to switch the welding positions, so as to realize the simultaneous loading and unloading and welding processes, which is reasonable and reasonable. Taking advantage of the high-efficiency welding of the laser welder, the waiting time of the laser welder in the replacement of the workpiece is saved, the maximum utilization of equipment resources is ensured, and the production efficiency of the welded workpiece is effectively improved; the clamp set on the workpiece clamping plate The holding block can stably position the workpiece to be welded, prevent it from shifting due to inertia during the feeding process, and improve the welding accuracy of the workpiece; during the welding process, the pneumatic positioning mechanism can position the workpiece between the two workpieces on the workpiece clamping plate. It can be compacted between the two workpieces to be welded to prevent the gap between the two workpieces to be welded and effectively improve the welding quality of the workpiece; the overall degree of automation is high, the operation is convenient, the clamping is stable, the welding accuracy is high, the welding quality is good, and the work efficiency is high, which can be widely used.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the bottom structure schematic diagram of the present invention;

3 is a schematic structural diagram of the pneumatic positioning mechanism of the present invention;

4 is a schematic structural diagram of a three-axis moving mechanism of the present invention;

FIG. 5 is a schematic structural diagram of the clamping block of the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, an automatic laser welding device with high working efficiency includes a worktable 1, a housing 2, two sets of linear moving modules 3, two workpiece clamping plates 4, and two sets of pneumatic positioning mechanisms 5. The three-axis moving mechanism 6 and the laser welder 7, the cover 2 is arranged at the rear end of the workbench 1, the two sets of the linear movement modules 3 are respectively vertically arranged on the workbench 1, and the two workpiece clamps The holding plate 4 is respectively arranged on the linear moving module 3, the two groups of the pneumatic positioning mechanisms 5 are respectively arranged on the cover 2 above the end of the linear moving module 3, and the laser welder 7 is arranged on the three-axis moving mechanism. 6 , the three-axis moving mechanism 6 is arranged on both sides of the rear end of the worktable 1 , and the three-axis moving mechanism 6 is located in the housing 2 . In this embodiment, the user can place the two upper and lower laminated workpieces to be welded on the workpiece clamping plate 4, and position the two workpieces through the workpiece clamping plate 4, which is convenient for positioning and simple to operate, and prevents the workpieces from being loaded during the feeding process. The displacement occurs due to inertial action in the middle; the linear movement module 3 can carry out the feeding operation on the workpiece. After the feeding is completed, the pneumatic positioning mechanism 5 can compact the workpiece, so as to avoid the gap between the two workpieces that affects the laser welder 7. Welding quality; when the laser welder 7 is welding the workpiece on the clamping plate 4 of one station, the user can place the next group of workpieces to be welded on another linear moving module 3. After the welding is completed, a One group of linear movement modules 3 is used for unloading, the other group of linear movement modules 3 is loaded, and the three-axis moving mechanism 6 operates to switch the laser welder 7 to the workpiece on another linear movement module 3 for welding operation. The simultaneous loading and unloading and welding processes are realized, the advantages of efficient welding of the laser welder 7 are rationally utilized, the waiting time of the laser welder 7 in the replacement of workpieces is saved, the maximum utilization rate of equipment resources is ensured, and the Productivity of welded workpieces.

As shown in FIG. 1 and FIG. 2 , the linear movement module 3 includes a mounting seat 31 , a servo motor (not shown), a rotating screw 32 , a screw nut 33 , two first slide rails 34 and a plurality of first A slider (not shown), the worktable 1 is provided with a longitudinally arranged chute 10, the mounting seat 31 is provided at the bottom of the worktable 1, the rotating screw 32 is sleeved on the mounting seat 31, and The rotating screw 32 is located below the chute 10, the output shaft of the servo motor is connected to the rotating screw 32, the screw nut 33 is sleeved on the rotating screw 32, and the top of the screw nut 33 is connected to a The workpiece clamping plate 4 is connected, the first slide rails 34 are respectively arranged on the worktable 1 on both sides of the chute 10 , and the two sides of the bottom of the workpiece clamping plate 4 pass through the first slider and the first slide rail 34 respectively. connect. In this embodiment, after the workpiece to be welded is placed on the workpiece clamping plate 4, the rotation of the servo motor can drive the rotating screw 32 to rotate. Since the screw nut 33 is sleeved on the rotating screw 32, it can be The workpiece clamping plate 4 connected to the top of the nut 33 moves, so as to send the workpiece on the workpiece clamping plate 4 to the bottom of the pneumatic positioning mechanism 5 at the end to realize compaction welding. The arrangement of the first sliding rail 34 and the first sliding block can improve the stability of the linear movement of the workpiece clamping plate 4 .

As shown in FIG. 3 , the pneumatic positioning mechanism 5 includes a fixing plate 51 , two connecting plates 52 , two cylinders 53 and two rubber pressing blocks 54 . The fixing plate 51 is connected to the side wall of the housing 2 , and the Two sides of the bottom of the fixing plate 51 are respectively connected with the cylinder 53 through the connecting plate 52 , and the piston end of the cylinder 53 is connected with the rubber pressing block 54 . In this embodiment, after the workpiece to be welded has completed the feeding operation, the pneumatic positioning mechanism 5 can stably compact the workpiece on the workpiece clamping plate 4 . Specifically, the piston ends of the cylinders on both sides of the fixed plate 51 move outwards, so that the rubber pressing blocks 54 are pressed on both sides of the workpiece to prevent a gap between the two workpieces stacked on top of each other and affect the welding quality of the workpiece.

As shown in FIG. 4 , further, the three-axis moving mechanism 6 includes a Y-axis moving component 61 , an X-axis moving module 62 , a Z-axis moving module 63 and two bases 64 . The bases 64 are respectively provided with On the left and right sides of the worktable 1 , the Y-axis moving assembly 61 includes a Y-axis moving module 611 , a second sliding rail 612 and a second sliding block 613 , and the Y-axis moving module 611 is located on the left side of the worktable 1 . The second slide rail 612 is arranged on the base 64 on the right side of the workbench 1, the left side of the X-axis moving module 62 is connected with the Y-axis moving module 611, and the X-axis moves The right side of the module 62 is connected to the second slide rail 612 through the second slider 613 , the Z-axis moving module 63 is connected to the X-axis moving module 62 , and the laser welder 7 is arranged on the Z-axis moving module 63 superior. In this embodiment, after the laser welder 7 completes laser welding on the workpiece on the linear movement module 3, the three-axis moving mechanism 6 can switch the laser welder 7 to another linear movement module 3 to quickly Laser weld the next set of workpieces. Specifically, the Y-axis moving component 61 can drive the laser welder 7 to move longitudinally on the base 64, and the X-axis moving module 62 can drive the laser welder 7 to move laterally on the worktable 1 to move in two straight lines The module 3 is switched back and forth, and the Z-axis moving module 63 can drive the laser welder 7 to move up and down. When the workpiece needs to be welded, under the action of the control system, the X-axis moving module 62 and the Y-axis moving module 611 are used to realize the positioning and movement of the to-be-welded point on the workpiece. After the positioning is completed, the Z-axis moving module 63 Drive the laser welder 7 to descend, and the laser welder 7 works to realize fast laser welding of the workpiece. After the welding is completed, the Z-axis moving module 63 drives the laser welder 7 to rise, and the X-axis moving module 62 drives the laser welder 7 horizontally. Move and switch to the workpiece on another linear movement module 3 for positioning welding. It should be noted that, since the X-axis moving module 62, the Y-axis moving module 611 and the Z-axis moving module 63 are the disclosed prior art, the X-axis moving module 62, the Y-axis moving module 62 and the Y-axis moving module 62 and Y-axis are no longer moved in this embodiment. The internal structures and working principles of the module 611 and the Z-axis moving module 63 are described in detail.

As shown in FIG. 3 , further, the middle of the fixing plate 51 is provided with an escape groove 510 which is convenient for the laser welder 7 to perform laser welding. In this embodiment, the setting of the avoidance groove 510 can prevent the fixing plate 51 from hindering the normal operation of the laser welder 7 .

As shown in FIG. 1 and FIG. 5 , further, the workpiece clamping plate 4 is provided with two clamping blocks 41 with the same structure. The clamping blocks 41 have an L-shaped structure. The other clamping block 41 is arranged at the rear end of the workpiece clamping plate 4 . In this embodiment, a clamping block 41 with an L-shaped structure is respectively provided at the front and rear ends of the workpiece clamping plate 4, and the clamping blocks 41 arranged at the front and rear can position and clamp the workpiece on the workpiece clamping plate 4. Prevent the workpiece from shifting due to inertia during the movement process, and reduce the laser welding accuracy of the workpiece.

Further, the clamping block 41 is made of rubber material. In this embodiment, the clamping block 41 made of rubber is soft in nature, which effectively prevents the clamping block 41 from scratching the surface of the workpiece during the clamping and positioning process.

As shown in FIG. 2 , further, a supporting disc 11 and a universal pulley 12 are respectively provided on the four corners of the bottom of the worktable 1 , and a screw 110 is provided on the top of the supporting disc 11 , and the screw 110 It is connected with the workbench 1 by screws. In this embodiment, the setting of the universal pulley 12 can facilitate the user to move the position of the present invention. The arrangement of the support disc 11 can facilitate the user to fix and support the present invention. When the support is required, the lifting and lowering adjustment of the support disc 11 can be realized only by rotating the screw 110 .

As shown in FIG. 1 , further, the front side, left side and right side of the housing 2 are respectively provided with a glass window 20 which is convenient for observing the working state. In this embodiment, the setting of the cover 2 can prevent the present invention from causing mechanical damage to the human body during the working process. The setting of the glass window 20 is convenient for the user to observe the working state of the laser welder 7 in real time.

By adopting the above technical solutions, in the present invention, two sets of linear moving modules are set on the worktable to carry out feeding and welding of the workpiece to be welded, and the three-axis moving mechanism is used to switch the welding positions, so as to realize the simultaneous loading and unloading and welding processes, which is reasonable and reasonable. Taking advantage of the high-efficiency welding of the laser welder, the waiting time of the laser welder in the replacement of the workpiece is saved, the maximum utilization of equipment resources is ensured, and the production efficiency of the welded workpiece is effectively improved; the clamp set on the workpiece clamping plate The holding block can stably position the workpiece to be welded, prevent it from shifting due to inertia during the feeding process, and improve the welding accuracy of the workpiece; during the welding process, the pneumatic positioning mechanism can position the workpiece between the two workpieces on the workpiece clamping plate. It can be compacted between the two workpieces to be welded to prevent the gap between the two workpieces to be welded and effectively improve the welding quality of the workpiece; the overall degree of automation is high, the operation is convenient, the clamping is stable, the welding accuracy is high, the welding quality is good, and the work efficiency is high, which can be widely used.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (7)

1. The utility model provides an automatic laser welding device that work efficiency is high which characterized in that: the laser welding device comprises a workbench, a housing, two groups of linear moving modules, two workpiece clamping plates, two groups of pneumatic positioning mechanisms, three-axis moving mechanisms and a laser welding device, wherein the housing is arranged at the rear end of the workbench;

the linear moving module comprises a mounting seat, a servo motor, a rotating screw rod, a screw rod nut, two first slide rails and a plurality of first slide blocks, wherein a sliding groove is longitudinally formed in the workbench, the mounting seat is arranged at the bottom of the workbench, the rotating screw rod is sleeved on the mounting seat and is positioned below the sliding groove, an output shaft of the servo motor is connected with the rotating screw rod, the screw rod nut is sleeved on the rotating screw rod, the top of the screw rod nut is connected with a workpiece clamping plate, the first slide rails are respectively arranged on the workbench at two sides of the sliding groove, and two sides of the bottom of the workpiece clamping plate are respectively connected with the first slide rails through the first slide blocks;

the pneumatic positioning mechanism comprises a fixed plate, two connecting plates, two air cylinders and two rubber pressing blocks, the fixed plate is connected with the side wall of the housing, two sides of the bottom of the fixed plate are connected with the air cylinders through the connecting plates respectively, and the piston ends of the air cylinders are connected with the rubber pressing blocks.

2. The high-efficiency automated laser welding apparatus according to claim 1, wherein: triaxial moving mechanism includes that Y axle removes subassembly, X axle removal module, Z axle removal module and two bases, the workstation left and right sides is located respectively to the base, Y axle removes the subassembly and includes that Y axle removes module, second slide rail and second slider, Y axle removes the module and locates on the left base of workstation, the second slide rail is located on the base on workstation right side, X axle removes the module left side and is connected with Y axle removal module, X axle removes the module right side and passes through second slider and second slide linkage, Z axle removes the module and is connected with X axle removal module, the laser-beam welding ware is located on Z axle removal module.

3. The automated laser welding apparatus with high working efficiency according to claim 2, characterized in that: the middle part of the fixing plate is provided with a dodging groove which is convenient for the laser welding device to carry out laser welding.

4. The high-efficiency automated laser welding apparatus according to claim 1, wherein: the workpiece clamping plate is provided with two clamping blocks with the same structure, each clamping block is of an L-shaped structure, one clamping block is arranged at the front end of the workpiece clamping plate, and the other clamping block is arranged at the rear end of the workpiece clamping plate.

5. The high-work-efficiency automated laser welding apparatus according to claim 4, wherein: the clamping block is made of rubber materials.

6. The high-efficiency automated laser welding apparatus according to claim 1, wherein: four angles of the bottom of the workbench are respectively provided with a supporting disc and a universal pulley, the top of the supporting disc is provided with a screw rod, and the screw rod is connected with the workbench through threads.

7. The high-efficiency automated laser welding apparatus according to claim 1, wherein: and the front side, the left side and the right side of the housing are respectively provided with a glass window convenient for observing the working state.

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