CN110315208A - A kind of double-station dissimilar metal double-sided laser welding equipment - Google Patents

Abstract

The invention discloses a dual-station dissimilar metal double-sided laser welding equipment, which includes a workbench, a material belt conveying assembly, a welding jig and a laser welding assembly, and the welding jig includes a bottom plate, a Cowling lower mold, a Spring lower mold, and a Cowling upper mold. Die, Spring upper die, Cowling cutting assembly and Spring cutting assembly, the welding jig is provided with Spring strip groove, Shield strip groove and Cowling strip channel arranged in sequence from top to bottom, and the Shield strip groove is horizontal Setting, the Cowling strip channel and the Spring strip groove are arranged longitudinally, and the first cutting hole for the Cowling cutting component to pass through the bottom plate and the Cowling lower die is provided. The first cutting hole passes through the Cowling strip channel, and the Shield strip The bottom of the groove is provided with a second cutter hole through the bottom plate and the Spring lower die for the Spring cutting component to pass through. The laser welding equipment of the present invention can respectively weld Spring pieces and Cowling pieces of dissimilar materials on both sides of the Shield piece in two stations, and has higher welding quality and higher production efficiency.

Description

A double-station dissimilar metal double-sided laser welding equipment

technical field

The invention relates to the field of welding technology, in particular to a double-side laser welding equipment with two stations for dissimilar metals.

Background technique

Radio frequency shielding components are important parts of mobile terminals such as mobile phones. Fig. 1 schematically shows a partial front view of a radio frequency shielding assembly obtained by welding equipment, and Fig. 2 schematically shows a partial rear view of a radio frequency shielding assembly obtained by welding equipment. Please refer to Figure 1 and Figure 2. The RF shielding assembly is composed of parts of different materials, which are named Shield 700, Cowling 800 and Spring 900 respectively. Shield 700 is a thin stamping part, and Cowling 800 is roughly cubic. Shaped cover, Spring piece 900 is a deformable shrapnel. One side of Shield piece 700 is welded with Cowling piece 800, and the other side is welded with Spring piece 900. Initial Shield piece 700, Cowling piece 800 and Spring piece 900 are respectively fixed on the Shield strip, Cowling strip, Spring strip.

Contents of the invention

According to one aspect of the present invention, a double-side laser welding device for dissimilar metals with two stations is provided, including:

workbench;

The material belt conveying assembly, the material belt conveying assembly includes a material pulling mechanism, a guiding assembly, and a feeding assembly. There are three material belt conveying assemblies, one of which is set horizontally on the workbench, and the other two are vertically set up;

Welding jig, the welding jig is set between the pulling mechanism and the guide assembly, the welding jig includes the bottom plate, Cowling lower die, Spring lower die, Cowling upper die, Spring upper die, Cowling cutting component and Spring cutting component , the Cowling lower die and the Spring lower die are fixed on the upper surface of the bottom plate, the Cowling upper die is located above the Cowling lower die, the Spring upper die is located above the Spring lower die, the Cowling cutting assembly is located below the Cowling lower die, and the Spring cutting assembly Located below the Spring lower die, the Cowling lower die is provided with a Cowling tape passage for the Cowling tape to pass through, the Cowling lower die and the Spring lower die are provided with a Shield tape groove for guiding the Shield tape, and the Spring upper die is provided with a guide Spring The Spring material groove of the material belt, wherein the Shield material belt groove is set horizontally, the Cowling material belt channel and the Spring material belt groove are arranged vertically, the Cowling material belt channel is located under the Shield material belt groove, and the Spring material belt groove is located at the shield material belt groove Above, through the bottom plate and the Cowling lower mold, there is a first cutting hole for the Cowling cutting component to pass through. The first cutting hole passes through the Cowling strip channel, and the bottom of the Shield strip groove is provided with a hole that passes through the bottom plate and the Spring lower mold. The second cutter hole for Spring cutting components to pass through;

Laser welding components, each welding station is equipped with a laser welding component.

The beneficial effect of this embodiment is: to realize that the Cowling piece and the Spring piece are welded to the two sides of the Shield piece; the Spring strip groove, the Shield strip groove and the Cowling strip channel are respectively for the Spring strip, the Shield strip and the Cowling strip to pass through , the three channels or guide grooves for guiding the material belt are Spring material belt channel, Shield material belt channel and Cowling material belt channel from top to bottom. The advantage of setting in this order is that it overcomes the defect of narrow welding space, The welding parts of the Cowling and Spring parts are fully exposed to the laser, which improves the utilization rate of the laser; the Cowling cutting component cuts the Cowling from the Cowling strip, and puts the Cowling in contact with the Shield strip, and then the laser The welding component is welded; the laser welding component welds the Spring part and the Shield part, and the Spring part is cut off from the Spring strip by the Spring material cutting component.

In some embodiments, the material pulling mechanism includes a first frame in the shape of a square frame, a horizontal driving shaft is arranged in the first frame, a driving wheel is coaxially fixed on the driving shaft, and a first motor is installed on the outside of the first frame. The output shaft of the first motor is coaxially connected with the driving shaft, and a shaft parallel to the driving shaft is fixed in the first frame, and two levers are rotatably connected to the shaft, and the two ends of each lever are respectively located on both sides of the shaft. The same ends of the levers are connected by the first connecting rod, and the other ends of the two levers are connected by the second connecting rod. The coaxial sleeve on the second lever is provided with a rotatable driven wheel, and the upper end of the lever far away from the first connecting rod A spring is provided, and the spring is configured to exert downward pressure on the lever so that the driven wheel and the driving wheel fit together. A first cylinder is provided above the first connecting rod. The output shaft of the first cylinder is connected with a pressure rod, and the pressure rod is It is configured to be able to press down the first connecting rod under the drive of the first cylinder to separate the driven wheel from the driving wheel. A horizontal extension plate is provided on the side of the first frame opposite to the guide assembly, and two pieces are arranged on the extension plate. The first material guide plates are perpendicular to the driving shaft and arranged horizontally, and the opposite sides of the two first material guide plates are provided with first material guide grooves. Under the action of spring thrust, the driven wheel is close to the driving wheel. In operation, the material band is introduced in the material pulling mechanism from the first material guide groove, and passes between the driven wheel and the driving wheel, the first motor drives the driving wheel to rotate, and the driving wheel and the driven wheel cooperate to pull the material band to advance. When the parts need to be welded, the first cylinder drives the pressure rod to move downward, and the pressure rod presses down the first connecting rod, driving the two levers to rotate, so that the other end of the lever overcomes the spring and rises up. At this time, the driven wheel is far away from the driving wheel. Wheel, the material pulling mechanism suspends pulling material, so the material pulling mechanism of this embodiment has the function of moving and stopping.

In some embodiments, the guiding assembly includes two second material guide plates, a rotatable bushing and two first chucks, and second material guide grooves are provided on opposite sides of the two second material guide plates, The shaft sleeve is arranged on the inlet end of the second material guide plate, the two first chucks are sleeved on the shaft sleeve, the first bracket is installed on the workbench, the second material guide plate is fixed on the first bracket, and the An extension rod is fixed on the side of a bracket, a fixed shaft is arranged on the extension rod, two ball bearings are arranged on the fixed shaft, and a shaft sleeve is arranged outside the ball bearing, and the shaft sleeve can be rotated through the ball bearings. The material passes between the two first chucks, the first chuck can prevent the large left and right deviation of the material belt, and then the material belt passes between the second material guide groove, specifically, the two sides of the material belt The two sides are respectively located in the two second material guide grooves. The guiding assembly of this embodiment can prevent the material strip entering the welding process from shifting or inclining left and right, which provides a guarantee for the welding accuracy of the subsequent welding process.

In some embodiments, the Cowling lower die includes a Cowling lower die base plate and a Cowling lower die cover plate fixed on the Cowling lower die base plate, and the Cowling strip channel is located on the bottom surface of the Cowling lower die cover plate.

In some embodiments, the Cowling cutting assembly includes a second air cylinder, a first fixed plate, a first cutter and a first positioning pin, the second air cylinder is arranged below the first fixed plate, and the second air cylinder drives the first fixed plate Lifting, the first cutter and the first positioning pin are fixed on the first fixed plate, the upper edge of the first cutter is provided with a blade, the upper end of the first cutter is provided with a square groove, the first positioning pin and the first cutter side by side and close to each other. The second cylinder drives the first cutter to move upward, and the first positioning pin is inserted into the preset through hole on the Cowling strip to prevent the Cowling strip from shifting during cutting, and then the Cowling piece is cut from the Cowling strip by the blade Next, the Cowling piece just falls into the square groove, and the first cutting knife continues to move upward until the Cowling piece touches the lower surface of the Shield piece, keeping the first cutting knife still, and the Cowling piece and the Shield piece are welded and connected by the laser welding component .

In some embodiments, the laser welding assembly includes a laser vibrating mirror and a lifting assembly. The laser vibrating mirror is connected to the lifting assembly so that the lifting assembly can drive the laser vibrating mirror to lift. The lifting assembly includes a lifting frame, a lifting seat, a precision screw, a screw The nut and the guide post, the laser oscillating mirror is fixed on the front of the lifting frame, the lifting frame is fixedly connected with the lifting base, the lifting base is slidingly matched with the guide post, the screw nut is threaded with the precision screw, and the lifting base is fixedly connected with the screw nut. A precision lead screw is capable of turning around its central axis. This embodiment adopts a precision screw rod, so that the distance between the laser galvanometer lens and the welding spot can be precisely adjusted.

In some embodiments, the precision screw, the screw nut and the guide column are arranged in the bottom case, the side of the bottom case is provided with a scale line, and the lifting base is provided with a pointer for indicating the height of the laser vibrating mirror. The scale line indicated by the pointer is the height of the laser vibrating mirror. In addition, the lifting height of the laser vibrating mirror can be accurately calculated through the change of the indicated scale.

In some embodiments, the upper end of the precision screw rod is provided with a locking block, and the locking block is fastened to the inner wall of the bottom case. The locking block is provided with a first through hole, and the upper end of the precision screw rod passes through the first through hole. Pass through, the locking block is provided with a notch connecting the first through hole and the side surface of the locking block, the two sides of the notch are respectively formed to form the first part and the second part, and the outside of the bottom shell is provided with a second rocker , The end of the second crank handle is provided with a bolt, the bolt passes through the bottom case and the second part, and is threadedly engaged with the second part, and the bolt is also threaded with the first part. When it is not locked, there is a gap between the first through hole and the upper end of the precision screw rod to ensure that the precision screw rod can rotate. Turning the second rocker clockwise or counterclockwise can make the bolt rotate. When the bolt is screwed in to a certain extent, it will cause the first part to deform in the direction of the second part, and then the inner diameter of the first through hole will shrink. When the first through hole When the inner diameter of the hole shrinks to a certain degree, the locking block locks the precision screw rod so that it cannot rotate any more.

In some embodiments, the inner wall of the bottom case is provided with a mounting seat, and the mounting seat is provided with an arc-shaped groove with an arc-shaped cross section, and the outer surface of the cylindrical guide post is matched with the arc-shaped groove, and the guide post passes through the arc-shaped groove. The bolt is fixedly connected with the mounting seat. The installation structure of the guide post and the mounting seat provided in this embodiment can prevent the guide post from vibrating, enhance the stability of the laser oscillating mirror, and ensure the welding accuracy.

Description of drawings

Fig. 1 is the front partial schematic view of the product obtained by the dual-station dissimilar metal double-sided laser welding equipment provided by a specific embodiment of the present invention.

Fig. 2 is a partial schematic diagram of the back side of the product obtained by the double-side laser welding equipment for dissimilar metals with double stations provided by a specific embodiment of the present invention.

Fig. 3 is a rear view of a double-side laser welding device for dissimilar metals with two stations provided by a specific embodiment of the present invention.

Fig. 4 is a top view of a double-side laser welding device for dissimilar metals with two stations provided by a specific embodiment of the present invention.

Fig. 5 is a front view of a welding jig provided by a specific embodiment of the present invention.

Fig. 6 is a structural schematic diagram of the bottom plate, the Cowling lower mold and the Spring lower mold provided by a specific embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a material pulling mechanism provided by a specific embodiment of the present invention.

Fig. 8 is a structural schematic diagram of another angle of the pulling mechanism provided by a specific embodiment of the present invention.

Fig. 9 is a schematic structural view of a guiding assembly provided by a specific embodiment of the present invention.

Fig. 10 is an exploded view of a guiding assembly provided by a specific embodiment of the present invention.

Fig. 11 is a schematic structural view of a discharging assembly provided by a specific embodiment of the present invention.

Fig. 12 is a partial exploded view of the lower die of Cowling provided by a specific embodiment of the present invention.

Fig. 13 is a bottom view of the Cowling lower mold cover plate provided by a specific embodiment of the present invention.

Fig. 14 is a schematic structural diagram of a Spring lower mold provided by a specific embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a laser welding assembly provided by a specific embodiment of the present invention.

Fig. 16 is an exploded view of a laser welding assembly provided by a specific embodiment of the present invention.

FIG. 17 is an enlarged view of position A in FIG. 15 .

Fig. 18 is a partial enlarged view of the upper part of the laser welding assembly provided by a specific embodiment of the present invention.

Fig. 19 is a cross-sectional view of a lifting assembly provided by a specific embodiment of the present invention.

Fig. 20 is a schematic structural view of a Cowling cutting assembly provided by a specific embodiment of the present invention.

Fig. 21 is a schematic structural view of the first cutter and the first positioning pin provided by a specific embodiment of the present invention.

Fig. 22 is a schematic structural view of a spring cutting assembly provided by a specific embodiment of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 3 schematically shows a rear view of a double-station dissimilar metal double-sided laser welding device provided by a specific embodiment of the present invention. Fig. 4 schematically shows a top view of a double-side laser welding device for dissimilar metals with two stations provided by a specific embodiment of the present invention.

Please refer to Figures 3-4, the present invention provides a dual-station dissimilar metal double-sided laser welding equipment, including a workbench 100, a strip conveyor assembly 200, a welding jig 300 and a laser welding assembly 400.

The material tape transmission assembly 200, the material tape transmission assembly 200 includes a material pulling mechanism 210, a guiding assembly 220, and a feeding assembly 230. There are three material tape transmission assemblies 200, and one of the material tape transmission assemblies 200 is horizontally arranged on the workbench 100. The other two strip conveying assemblies 200 are arranged vertically;

5-6, the welding jig 300, the welding jig 300 is set between the pulling mechanism 210 and the guiding assembly 220, the welding jig 300 includes a bottom plate 310, a Cowling lower die 320, a Spring lower die 330, and a Cowling upper die 340, Spring upper die 350, Cowling cutting assembly 360 and Spring cutting assembly 370, Cowling lower die 320 and Spring lower die 330 are all fixed on the upper surface of base plate 310, Cowling upper die 340 is positioned at the top of Cowling lower die 320, Spring upper die 320 Die 350 is positioned at the top of Spring lower die 330, and Cowling cutting assembly 360 is positioned at the below of Cowling lower die 320, and Spring cutting assembly 370 is positioned at the below of Spring lower die 330, and Cowling lower die 320 is provided with the Cowling material that passes through for Cowling strip. Belt channel 321, Cowling lower die 320 and Spring lower die 330 are provided with Shield material tape groove 380 for guiding Shield material tape, Spring lower die 330 is provided with Spring material tape groove 351 for guiding Spring material tape, wherein Shield material tape groove 380 Horizontal setting, Cowling strip channel 321 and Spring strip groove 351 are vertically set, Cowling strip passage 321 is located below Shield strip slot 380, Spring strip slot 351 is located above Shield strip slot 380, runs through bottom plate 310 and Cowling The lower die 320 is provided with a first cutting hole 322 for the Cowling cutting assembly 360 to pass through, the first cutting hole 322 passes through the Cowling strip channel 321, and the bottom of the Shield strip groove 380 is provided with a bottom plate 310 and a Spring lower die The second cutter hole 333 of 330 for the Spring cutting assembly 370 to pass through;

As for the laser welding assembly 400, each welding station is provided with a laser welding assembly 400 correspondingly.

The strip conveying assembly 200 is used for conveying the Shield strip, the Cowling strip and the Spring strip, so that the above three strips can pass through the welding jig 300 . In operation, the material tape is arranged on the unwinding assembly 230, the pulling mechanism 210 pulls the material tape, and the guiding assembly 220 guides the direction of the material tape.

The Cowling strip runs below the Shield strip, and the Spring strip runs above the Shield strip. In operation, the control system of the welding equipment controls the movement of the material belt, the Cowling upper mold 340 and the Cowling lower mold 320 are closed, the Spring upper mold 350 is closed with the Spring lower mold 330, and the Cowling upper mold 340 presses the Shield material belt to position it , the Spring upper mold 350 compresses the Spring strip and the Shield strip and positions them. The Cowling material cutting assembly 360 goes up, and the Cowling piece is cut off from the Cowling strip, and the Cowling piece is pushed up from the first cutting hole 322, so that the Cowling piece is in contact with the lower surface of the Shield piece, and then the laser welding assembly 400 welding. After clamping the mould, the Spring strip contacts with the Shield strip, and the Spring piece and the Shield piece are welded by another laser welding assembly 400, and the Spring material cutting assembly 370 goes up, so that the Spring piece comes off from the Spring strip. After completing these actions, the material pulling mechanism 210 pulls the material tape to advance one unit. The three channels or guide grooves for guiding the material belt are Spring material belt groove 351, Shield material belt groove 380 and Cowling material belt channel 321 from top to bottom. The advantage of setting in this order is that it overcomes the defect of narrow welding space , The welding parts of Cowling and Spring are fully exposed to the laser, which improves the utilization rate of the laser and the welding quality.

Referring to Figures 7-8, the material pulling mechanism 210 includes a first frame 211 in the shape of a square frame. A horizontal driving shaft 212 is arranged in the first frame 211, and a driving wheel 213 is coaxially fixed on the driving shaft 212. A first motor 214 is installed on the outside of the first frame 211, and the output shaft of the first motor 214 is coaxially connected with the driving shaft 212. A shaft 215 parallel to the driving shaft 212 is fixed in the first frame 211, and two levers 216 are rotatably connected on the shaft 215. The first connecting rod 217 is connected, and the other ends of the two levers 216 are connected by the second connecting rod 218. The coaxial sleeve on the second lever 218 is provided with a rotatable driven wheel 219. The side of the lever 216 away from the first connecting rod 217 A spring 2110 is arranged above the end, and the spring 2110 is configured to exert downward pressure on the lever 216, so that the driven wheel 219 and the driving wheel 213 fit together, and the first cylinder 2111 is arranged above the first connecting rod 217, and the first cylinder 2111 The output shaft is connected with a pressing rod 2112, and the pressing rod 2112 is configured to be able to press down the first connecting rod 217 under the drive of the first cylinder 2111 to separate the driven wheel 219 from the driving wheel 213; the first frame 211 and the guide assembly 220 The opposite side is provided with a horizontal extension plate 2113, and the extension plate 2113 is provided with two first material guide plates 2114 perpendicular to the drive shaft 212 and arranged horizontally, and the opposite sides of the two first material guide plates 2114 are provided with The first material guide groove 2115 . Under the thrust of the spring 2110 , the driven wheel 219 approaches the driving wheel 213 . In operation, the material tape is introduced into the material pulling mechanism 210 from the first material guide groove 2115, and passes between the driven wheel 219 and the driving wheel 213, and the first motor 214 drives the driving wheel 213 to rotate, and the driving wheel 213 and the driven wheel 219 Cooperate with pulling the material belt to advance. When the parts need to be welded, the first cylinder 2111 drives the pressure rod 2112 to move downward, and the pressure rod 2112 presses down the first connecting rod 217, driving the two levers 216 to rotate, so that the other end of the lever 216 overcomes the spring 2110 and is upturned At this time, the driven wheel 219 is far away from the driving wheel 213, and the material pulling mechanism 210 pauses the material pulling, so the material pulling mechanism 210 of this embodiment has the function of moving and stopping.

9-10, the guiding assembly 220 includes two second material guide plates 222, a rotatable bushing 224 and two first chucks 223, and the opposite sides of the two second material guide plates 222 are provided with a second Two material guide grooves 228 , the bushing 224 is arranged on the inlet end of the second material guide plate 222 , and the two first chucks 223 are sleeved on the bushing 224 . A first bracket 221 is installed on the workbench 100 , and the second material guide plate 222 is fixed on the first bracket 221 . An extension rod 227 is fixed from the side of the first bracket 221, and the extension rod 227 is provided with a fixed shaft 226, and the fixed shaft 226 is provided with two ball bearings 225, and the ball bearing 225 is provided with a shaft sleeve 224, and the ball bearing 225 enables the The sleeve 224 is rotatable. The first chuck 223 is coaxially fixed on the axle sleeve 224, preferably, the distance between the two first chucks 223 is slightly greater than the width of the material strip. The working principle of the guide assembly 220 is: the material passes between the two first chucks 223, the first chuck 223 can prevent the material belt from having a large left-right deviation, and then the material belt passes through the second material guide groove 228 Specifically, the two sides of the material strip are respectively located in the two second material guide grooves 228 . The guide assembly 220 of this embodiment can prevent the material strip entering the welding process from shifting left or right or tilting, which provides a guarantee for the welding accuracy of the subsequent welding process.

Referring to FIG. 11 , the material discharging assembly 230 includes a material setting shaft 231 and a second chuck 232 . The stock shaft 231 can rotate, specifically, the end of the stock shaft 231 is fixed to the third bracket 235 by a ball bearing, one end of the third bracket 235 is fixed on the workbench 100, and the other end extends to the outside of the workbench 100. There are two second chucks 232, which are respectively coaxially sleeved on the material shaft 231 and fastened by butterfly bolts. Preferably, the second chuck 232 is detachably connected to the material loading shaft 231, so that the distance between the two second chucks 232 can be adjusted to adapt to material trays of different widths. In operation, a second chuck 232 is pulled down, and the material tray is sleeved on the material setting shaft 231, and then the two second chucks 232 are clamped by the material tray, and the material tape enters the guiding assembly 220.

12-13, the Cowling lower die 320 includes a Cowling lower die base plate 324 and a Cowling lower die cover plate 325 fixed on the Cowling lower die base plate 324. The Cowling strip channel 321 is located on the bottom surface of the Cowling lower die cover plate 325. The pulling mechanism 210 pulls the Cowling material belt forward, so that the Cowling piece passes through the Cowling material belt passage 321, and when the equipment system controls the movement of the Cowling piece to align with the first cutting hole 322, the Cowling material cutting assembly 360 moves upward, and the Cowling piece Cut off from the Cowling strip and put it on top, so that the Cowling part is in contact with the Shield part above, and then welded by the laser welding assembly 400 .

With reference to Fig. 14, Spring lower mold 330 comprises Spring lower mold bottom plate 331, and Spring lower mold bottom plate 331 is provided with Spring material guide piece 332, and Spring material guide piece 332 extends along longitudinal direction, and Spring material guide piece 332 is divided into two sections, two sections Spaces are left between the Spring guide blocks 332, so that the Shield material strip can pass through the spaces. The spring strip groove 351 is arranged on the side of the spring guide block 332 . In operation, the Spring material band is positioned between two opposite Spring material band grooves 351, and the two edges of the Spring material band are respectively positioned in two relative Spring material band grooves 351.

6 and FIGS. 12-14, the Shield strip groove 380 spans the Cowling welding station and the Spring welding station, and the Shield strip groove 380 is formed in the following manner: the Cowling lower die 320 and the Spring lower die 330 are respectively provided with Shield material guide block 381, Shield material guide block 381 is made up of two block bodies that are arranged side by side, and the main part is elongated, and a third material guide groove 382 is provided on the opposite sides of the two block bodies. On the Cowling lower die 320 and the Spring lower die 330, there is also a floating pin 383 arranged vertically. The outer wall of the floating pin 383 is provided with an annular groove 384 in the circumferential direction. The annular groove 384 is aligned with the third guide groove 382, that is to say, the ring The slot 384 and the third guide slot 382 form a Shield tape slot 380 that guides the Shield tape. The bottom of the floating pin 383 is provided with a spring, when the floating pin 383 is pressed down, the floating pin 383 can sink, and when the pressure is released, the floating pin 383 resets. When the Spring upper die 350 was pressed down, the floating pin 383 was pressed down to sink, so that the Spring strip was in contact with the Shield strip.

20-21, the Cowling cutting assembly 360 includes a second cylinder 361, a first fixing plate 362, a first cutter 363 and a first positioning pin 364. The second air cylinder 361 is disposed under the first fixing plate 362 , and the second air cylinder 361 drives the first fixing plate 362 up and down. The first cutter 363 and the first positioning pin 364 are fixed on the first fixing plate 362. The upper edge of the first cutter 363 is provided with a blade 365 , and the upper end of the first cutter 363 is provided with a square groove 366 . The first positioning pin 364 and the first cutter 363 are juxtaposed and close to each other. The second cylinder 361 can drive the first cutter 363 and the first positioning pin 364 to move in the first cutter hole 322 . When the equipment is working, the second cylinder 361 drives the first cutter 363 to move upward, and the first positioning pin 364 is inserted into the preset through hole on the Cowling strip to prevent the Cowling strip from shifting when cutting, and then the knife edge 365 will The Cowling piece is cut off from the Cowling strip, and the Cowling piece just falls in the square groove 366, and the first cutting knife 363 continues to move upwards until the Cowling piece contacts the lower surface of the Shield piece, keeping the first cutting knife 363 still, by The laser welding assembly 400 welds the Cowling part and the Shield part. The square groove 366 has guaranteed that the attitude of the Cowling piece is put right, and the top of the first cutting knife 363 makes the Cowling piece and the Shield piece closely contact, has guaranteed the bonding strength and the stability of welding position.

Referring to FIG. 22 , the spring cutting assembly 370 includes a third cylinder 371 , a second fixing plate 372 and a second cutter 373 . The 3rd air cylinder 371 is arranged on the second fixed plate 372 below, can drive the second fixed plate 372 to lift, and the second cutter 373 is fixed on the second fixed plate 372. The third cylinder 371 drives the second cutter 373 to move in the second cutter hole 333 . The Spring strip moves on the Shield strip. After the Spring upper mold 350 and the Spring lower mold 330 are closed, the Spring strip and the Shield strip are pressed tightly, and the Spring piece and the Shield piece are in contact, and then the Spring piece is welded by the laser welding assembly 400. Welded with Shield parts, the welded part has strong and stable bonding. The 3rd cylinder 371 drives the second cutting knife 373 to move upwards, and the Spring part is excised from the Spring strip.

Cowling upper die 340 and Spring upper die 350 are driven by three fourth cylinders 390 . Specifically, the output shaft of one of the fourth cylinders 390 is connected with the left side of Cowling upper die 340, the output shaft of one fourth cylinder 390 is connected with the right side of Spring upper die 350, and the output shaft of another fourth cylinder 390 is connected with the upper die of Cowling. The right side of mold 340 and the left side of Spring upper mold 350 are connected. The driving structure of the present embodiment has guaranteed the synchronicity of Cowling upper die 340 and Spring upper die 350 lifting.

Cowling upper die 340 and Spring upper die 350 are respectively provided with positioning pins on the bottom surface. After the mold is closed, the positioning pins can be inserted into the preset through holes on the Shield material tape and the Spring material tape, preventing the Shield material tape and the Spring material tape offset.

15-16, the laser welding assembly 400 includes a laser vibrating mirror 410 and a lifting assembly 420, the laser vibrating mirror 410 is connected with the lifting assembly 420, so that the lifting assembly 420 can drive the laser vibrating mirror 410 to lift. The lifting assembly 420 includes a lifting frame 421, a lifting seat 423, a precision screw 425, a screw nut 426 and a guide post 427. The laser vibrating mirror 410 is fixed on the front of the lifting frame 421, the lifting frame 421 is fixedly connected with the lifting base 423, the lifting base 423 is slidingly matched with the guide post 427, the screw nut 426 is threaded with the precision screw 425, and the lifting base 423 is connected with the screw rod The nut 426 is fixedly connected, and the precision screw rod 425 can rotate around its central axis. In operation, turning the precision screw 425 clockwise or counterclockwise can lift the laser galvanometer 410 up and down. The present embodiment adopts precision screw rod, makes it possible to precisely adjust the distance between the lens of the laser vibrating mirror 410 and the welding spot.

Referring to Fig. 15 and Fig. 17, the precision screw 425, the screw nut 426 and the guide column 427 are arranged in the bottom case 424, and the side of the bottom case 424 is provided with a scale line, and the lifting seat 423 is provided with a position for indicating the height of the laser vibrating mirror 410. The pointer 4210. The indication of the scale line pointed by the pointer 4210 is the height of the laser vibrating mirror 410. In addition, the lifting height of the laser vibrating mirror 410 can be accurately calculated through the change of the indicated scale.

Referring to FIG. 18 , the lower end of the precision screw 425 is provided with a ball bearing, and the upper end is provided with a first rocker 429 . By shaking the first handle 429, the precision screw rod 425 can be rotated effortlessly.

After the height of the laser vibrating mirror 410 is adjusted in place, the precision screw rod 425 needs to be locked to prevent the precision screw rod 425 from rotating during the welding process. The upper end of the precision screw rod 425 is provided with a locking block 4212, and the locking block 4212 is fastened on the inner wall of the bottom shell 424, and the locking block 4212 is provided with a first through hole 4214, and the upper end of the precision screw rod 425 passes through the first through hole 4214, the locking block 4212 is provided with a notch 4215 connecting the first through hole 4214 and the side surface of the locking block 4212, the two sides of the notch 4215 are respectively formed to form a first part 4216 and a second part 4217, the bottom The outside of the shell 424 is provided with a second handle 4213, the end of the second handle 4213 is provided with a bolt 4218, the bolt 4218 passes through the bottom case 424 and the second part 4217, and is threadedly engaged with the second part 4217, the bolt 4218 also Threaded connection with the first part 4216. When not locked, there is a gap between the first through hole 4214 and the upper end of the precision screw 425 to ensure that the precision screw 425 can rotate. Turning the second handle 4213 clockwise or counterclockwise can rotate the bolt 4218. When the bolt 4218 is screwed in to a certain extent, it will cause the first part 4216 to deform in the direction of the second part 4217, thereby making the inner diameter of the first through hole 4214 shrink, when the inner diameter of the first through hole 4214 shrinks to a certain extent, the locking block 4212 locks the precision screw 425 so that it cannot rotate any more.

Referring to FIG. 19 , the inner wall of the bottom case 424 is provided with a mount 4211, and the mount 4211 is provided with an arc-shaped groove 4219 with an arc-shaped cross section, and the outer surface of the cylindrical guide post 427 matches the arc-shaped groove 4219 , the guide post 427 is fixedly connected to the mounting seat 4211 through bolts. The mounting structure of the guide post 427 and the mounting seat 4211 provided in this embodiment can prevent the guide post 427 from vibrating, enhance the stability of the laser vibrating mirror 410, and ensure the welding accuracy. In order to further improve the stability of the laser vibrating mirror 410, in some embodiments, the number of guide posts 427 is four.

The back of the lifting base 423 is provided with a guide sleeve 428 , and the guide sleeve 428 is slidingly matched with the guide post 427 . Since some areas of the outer wall of the guide post 427 are in contact with the arc-shaped groove 4219, in order to allow the guide sleeve 428 to fit on the guide post 427, the guide sleeve 428 provided in this embodiment is the same as the cylindrical guide sleeve sold on the market. The difference is that the guide sleeve 428 has a notch along its length.

The bottom case 424 is covered with a front cover 422 , and the front cover 422 can cover the parts in the bottom case 424 . The front cover 422 is connected to the bottom case 424 by bolts. In order not to affect the lifting of the lifting frame 421 and the lifting seat 423, the position where the lifting frame 421 is connected with the lifting seat 423 is provided with a gap, and the front cover plate 422 passes through the gap.

What have been described above are only some embodiments of the present invention. For those of ordinary skill in the art, on the premise of not departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the protection scope of the present invention.

Claims (9)

1. a kind of double-station dissimilar metal double-sided laser welding equipment characterized by comprising

Workbench (100)；

Material strip transfer assembly (200), material strip transfer assembly (200) include material pulling mechanism (210), guide component (220), blowing group Part (230), there are three material strip transfer assemblies (200), and one of material strip transfer assembly (200) is lateral on workbench (100) Setting, other two material strip transfer assembly (200) are longitudinally disposed；

Welding fixture (300), welding fixture (300) are arranged between material pulling mechanism (210) and guide component (220), and welding is controlled Having (300) includes bottom plate (310), Cowling lower die (320), Spring lower die (330), Cowling upper mold (340), Spring Upper mold (350), Cowling blank component (360) and Spring blank component (370), Cowling lower die (320) and Spring Lower die (330) is each attached to bottom plate (310) upper surface, and Cowling upper mold (340) is located at the top of Cowling lower die (320), Spring upper mold (350) is located at the top of Spring lower die (330), and Cowling blank component (360) is located at Cowling lower die (320) lower section, Spring blank component (370) are located at the lower section of Spring lower die (330), and Cowling lower die (320) is equipped with For the Cowling material strip channel (321) that Cowling material strip passes through, set in Cowling lower die (320) and Spring lower die (330) There is the Shield material strip slot (380) of guidance Shield material strip, Spring lower die (330) is equipped with the Spring of guidance Spring material strip Material strip slot (351), wherein Shield material strip slot (380) is laterally arranged, Cowling material strip channel (321) and Spring material strip slot (351) longitudinally disposed, Cowling material strip channel (321) is located at the lower section of Shield material strip slot (380), Spring material strip slot (351) it is located at the top of Shield material strip slot (380), is equipped with through bottom plate (310) and Cowling lower die (320) for Cowling The first cutter hole (322) that blank component (360) passes through, the first cutter hole (322) pass through Cowling material strip channel (321), The lower section of Shield material strip slot (380) is equipped with through bottom plate (310) and Spring lower die (330) for Spring blank component (370) the second cutter hole (333) passed through；

Laser welding component (400), each welding post are correspondingly provided with a laser welding component (400).

2. double-station dissimilar metal double-sided laser welding equipment according to claim 1, which is characterized in that material pulling mechanism (210) include four block forms the first frame (211), horizontal driving shaft (212) is equipped in the first frame (211), actively It is coaxially fixed with driving wheel (213), is equipped on the outside of the first frame (211) first motor (214) on axis (212), the first electricity The output shaft of machine (214) and driving shaft (212) are coaxially connected, are fixed in the first frame (211) parallel with driving shaft (212) Axis (215), there are two lever (216) for rotation connection on axis (215), and the both ends of each lever (216) are located at axis (215) The same side of two sides, two levers (216) is connected by first connecting rod (217), and the other end of two levers (216) passes through second Connecting rod (218) connection, coaxial sleeve is equipped with the driven wheel (219) that can be rotated on the second lever (218), lever (216) it is separate Spring (2110) are equipped with above that end of first connecting rod (217), spring (2110) is configured as applying lever (216) and be pressed downward Power is bonded driven wheel (219) with driving wheel (213), and the top of first connecting rod (217) is equipped with the first cylinder (2111), and first The output shaft of cylinder (2111) is connected with compression bar (2112), and compression bar (2112) is configured to the drive in the first cylinder (2111) Dynamic lower push first connecting rod (217) separate driven wheel (219) with driving wheel (213), the first frame (211) and guide component (220) that opposite side is equipped with horizontal extension board (2113), and extension board (2113) is vertical with driving shaft (212) equipped with two pieces And horizontally disposed first stock guide (2114), the opposite side of two piece of first stock guide (2114) be equipped with the first deflector chute (2115)。

3. double-station dissimilar metal double-sided laser welding equipment according to claim 1, which is characterized in that guide component It (220) include two the second stock guides (222), a rotatable axle sleeve (224) and two the first chucks (223), two the Two stock guides (222) opposite sides is equipped with the second deflector chute (228), axle sleeve (224) be arranged the second stock guide (222) into Mouth end, two the first chucks (223) are set on axle sleeve (224), are equipped on workbench (100) first support (221), the Two stock guides (222) are fixed on first support (221), are fixed with extension rod (227) from the side of first support (221), are prolonged Boom (227) is equipped with fixing axle (226), sets that there are two ball bearing (225) in fixing axle (226), and ball bearing (225) is outside It equipped with axle sleeve (224), rotate axle sleeve (224) can by ball bearing (225).

4. double-station dissimilar metal double-sided laser welding equipment according to claim 1, which is characterized in that under Cowling Mould (320) includes die cap under Cowling lower mould bottom plate (324) and the Cowling being fixed on Cowling lower mould bottom plate (324) Plate (325), Cowling material strip channel (321) are located at the bottom surface of Cowling lower die cover board (325).

5. double-station dissimilar metal double-sided laser welding equipment according to claim 1, which is characterized in that Cowling is cut Expect that component (360) include the second cylinder (361), the first fixed plate (362), the first cutter (363) and the first pilot pin (364), Second cylinder (361) setting drives the first fixed plate (362) to rise in the lower section of the first fixed plate (362), the second cylinder (361) Drop, the first cutter (363) and the first pilot pin (364) are fixed on the first fixed plate (362), the upper end of the first cutter (363) Edge is equipped with blade (365), and the first cutter (363) upper end end face is equipped with square groove (366), the first pilot pin (364) and first Cutter (363) is arranged side by side and close to each other.

6. double-station dissimilar metal double-sided laser welding equipment according to claim 1, which is characterized in that Laser Welding component It (400) include laser galvanometer (410) and lifting assembly (420), laser galvanometer (410) connect with lifting assembly (420), makes to go up and down Component (420) can drive laser galvanometer (410) go up and down, lifting assembly (420) include crane (421), lifting seat (423), Accurate lead screw (425), feed screw nut (426) and guide post (427), laser galvanometer (410) are fixed on the front of crane (421), Crane (421) is fixedly connected with lifting seat (423), and lifting seat (423) is slidably matched with guide post (427), feed screw nut (426) It is threadedly coupled with precision lead screw (425), lifting seat (423) and feed screw nut (426) are affixed, and accurate lead screw (425) can be around it Central axis rotation.

7. double-station dissimilar metal double-sided laser welding equipment according to claim 6, which is characterized in that accurate lead screw (425), in bottom case (424), the side of bottom case (424) is equipped with graduation mark for feed screw nut (426) and guide post (427) setting, rises Drop seat (423) is equipped with the pointer (4210) for being used to indicate laser galvanometer (410) height.

8. double-station dissimilar metal double-sided laser welding equipment according to claim 7, which is characterized in that accurate lead screw (425) upper end is equipped with latch segment (4212), and latch segment (4212) is fastened on the inner wall of bottom case (424), on latch segment (4212) Equipped with first through hole (4214), the upper end of accurate lead screw (425) is passed through from first through hole (4214), and latch segment is set on (4212) There are the notch (4215) for being connected to the first through hole (4214) and latch segment (4212) side surface, the two sides difference of notch (4215) First (4216) and second (4217) are formed, the outside of bottom case (424) is equipped with the second rocking handle (4213), the second rocking handle (4213) end be equipped with bolt (4218), bolt (4218) pass through bottom case (424) and second (4217), and with second (4217) it is threadedly engaged, bolt (4218) is also threadedly coupled with first (4216).

9. double-station dissimilar metal double-sided laser welding equipment according to claim 8, which is characterized in that bottom case (424) Inner wall be equipped with mounting base (4211), mounting base (4211) is equipped with the arc-shaped arc groove (4219) in cross section, cylindrical The outer surface of guide post (427) matched with arc groove (4219), guide post (427) is fixed by bolt and mounting base (4211) Connection.