Welding equipment for aluminum strip splicing

Abstract

The present invention discloses a welding device for splicing aluminum strips, wherein a clamping structure 1 is installed on the right rear side of the fixed placing plate, and a movable placing plate is installed above the table plate for sliding left and right through a linear track, and a clamping structure 2 is installed above the rear side of the movable placing plate, and aluminum strips are placed on the movable placing plate and the fixed placing plate, respectively, and a positioning structure 1 and a positioning structure 2 for positioning the two aluminum strips are respectively provided below the fixed placing plate and the movable placing plate, and two groups of limit plates are installed for sliding back and forth below the movable placing plate, and a barrier for limiting the movement of the movable placing plate is also installed on the left side of the limit plate. By arranging the positioning structure 1 below the fixed placing plate and the positioning structure 2 below the movable placing plate, the positioning structure 1 and the positioning structure 2 can respectively limit the position of the aluminum strips above them, thereby ensuring that the overlapping area of ​​the two aluminum strips during splicing and welding is of the required size, thereby improving the welding accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to a welding equipment for splicing aluminum strips. Background Art

[0002] Aluminum strips are pure aluminum or aluminum alloy cast-rolled or hot-rolled coils, produced in cold rolling mills into thin sheets of varying thicknesses and widths. During the production of some aluminum-plastic parts, two strips must be joined and welded together. Currently, when joining two strips together, one strip is placed on a support plate, followed by the other strip, with the two strips partially overlapping. This improves overall weld strength. Because the overlap between the two strips is limited, and two strips of the same width cannot be joined with side-mounted positioning structures to ensure this overlap, a scale line is typically drawn on one strip. The second strip is then placed on top, ensuring that the end of the upper strip aligns with the marked scale line. This method is inefficient when joining large quantities of aluminum strips together, making it unsuitable for large-scale welding. To address this issue, we have designed a welding device for joining aluminum strips together. Summary of the Invention

[0003] The present invention provides a welding device for aluminum strip splicing, which solves the above problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A welding device for splicing aluminum strips comprises a frame, a table is fixed above the frame, a mounting frame is installed above the table, a cross slide is installed above the mounting frame, a laser welding module is installed on the slider of the cross slide, a fixed placement plate is fixed to the left end of the front side above the table, a clamping structure 1 is installed on the right rear side of the fixed placement plate, a movable placement plate is installed above the table for sliding left and right through a linear track, a clamping structure 2 is installed on the rear side of the movable placement plate, and the opposite sides of the two aluminum strips are inclined. The opposite end of the placement plate is also tilted, and the tilt angle is the same as the slope of the aluminum strip. Therefore, the clamping structure 1, the clamping structure 2 and the laser welding module are all tilted. Aluminum strips are placed on the movable placement plate and the fixed placement plate respectively. Positioning structure 1 and positioning structure 2 for positioning the two aluminum strips are respectively provided under the fixed placement plate and the movable placement plate. Two sets of limit plates are installed for sliding back and forth under the movable placement plate. The two limit plates are respectively connected to the positioning structure 1 and the positioning structure 2. A barrier for limiting the movement of the movable placement plate is also installed on the left side of the limit plate.

[0006] Preferably, a positioning block is fixed on the upper rear side of the fixed placement plate, and a lifting opening is opened on the upper rear side of the fixed placement plate;

[0007] A second positioning block is fixed on the rear side above the movable placement plate, copper pads are embedded in the inclined ends of the fixed placement plate and the movable placement plate that are close to each other, and a second lifting port is opened on the front side above the movable placement plate.

[0008] Preferably, a movable cylinder is fixed on the front side above the table, a connecting frame is fixed on the push rod of the movable cylinder, the connecting frame is fixed to the movable placement plate by screws, a support member is fixed above the movable placement plate, the thickness of the support member is consistent with the thickness of the aluminum strip, and the bottom end of the aluminum strip on the movable placement plate is flush with the upper surface of the aluminum strip on the fixed placement plate.

[0009] Preferably, the first pressing structure includes a fixing frame fixed on the table, a pressing cylinder is installed above the fixing frame, a push rod of the pressing cylinder passes through the fixing frame and is placed below the fixing frame, and a pressing plate is fixed to the bottom end of the push rod of the pressing cylinder, a lower pressure head 1 is fixed to the rear side below the pressing plate, two sets of guide sleeves are fixed on the fixing frame, a guide rod is inserted in the guide sleeve for sliding up and down, and the bottom end of the guide rod is connected to the pressing plate;

[0010] The structure of the clamping structure 2 is the same as that of the clamping structure 1. A lower pressure head 2 is fixed on the front side below the clamping plate of the clamping structure 2. The lower pressure head 1 is aligned up and down with the lifting port 1, and the lower pressure head 2 is aligned up and down with the lifting port 2. The difference between the clamping structure 2 and the clamping structure 1 is that the clamping structure 1 is fixed to the table, and the clamping structure 2 is fixed on the movable placement plate. The clamping structure 2 can move left and right with the movable placement plate, thereby clamping and fixing the aluminum strip above the movable placement plate in real time.

[0011] Preferably, the second positioning structure includes two fixing posts fixed to the front side below the movable placement plate, a circular ring is fixed at the bottom end of the fixing post, an L-shaped frame is slidably sleeved between the two fixing posts, a jacking spring is sleeved on the fixing post, and the jacking spring makes the L-shaped frame always have a tendency to move upward, and the two ends of the jacking spring are respectively abutted against the circular ring and the L-shaped frame, and two positioning pins are fixed above the end of the L-shaped frame away from the fixing post, the positioning pin is located on the left side of the movable placement plate, and the top end of the positioning pin is above the movable placement plate, the fixing post passes through the top and bottom to form a screw hole, the bolt is connected in the screw hole and fixed to the movable placement plate above;

[0012] The structures of the positioning structure 1 and the positioning structure 2 are the same. The difference between the two is that the two fixed columns below the positioning structure 1 are fixed below the fixed placement plate. The positioning structure 1 and the positioning structure 2 are staggered. The positioning pin in the positioning structure 1 is on the right side of the fixed placement plate, and the top of the positioning pin is above the fixed placement plate. The L-shaped frame in the positioning structure 1 is directly below the lower pressure head 1, and the L-shaped frame in the positioning structure 2 is directly below the lower pressure head 2. When the positioning structure 2 moves to the left following the movable placement plate, the positioning structure 1 will not collide with the positioning structure 2, thereby avoiding interference.

[0013] Preferably, the L-shaped frame includes two parts, a lifting plate and an adjusting plate, the lifting plate is slidably sleeved on the two fixing posts, the upper half of the lifting plate near one end of the limit plate is cut off to form an overlapping portion, and the lower part of the adjusting plate near one end of the limit plate is cut off to form a clamping portion, the overlapping portion and the clamping portion are both penetrated up and down to form a strip opening, and the clamping portion and the overlapping portion are fixed by bolts and nuts. When the overlapping portion of the two spliced ​​and welded aluminum strips is long, the nut in the second positioning structure is loosened to make the adjusting plate move to the right, so that the distance between the positioning pin and the left end of the movable placement plate is the required overlapping length, and then the nut can be tightened, thereby adjusting the length of the overlapping portion when the two aluminum strips are welded.

[0014] Preferably, the barrier member includes a fixed sleeve fixed above the table, the fixed sleeve penetrates up and down to form a telescopic cavity, a barrier block is inserted into the telescopic cavity for sliding up and down, a reset spring is placed in the telescopic cavity, the two ends of the reset spring are respectively in contact with the barrier block and the table, the reset spring makes the barrier block always have a tendency to move upward, the cross-section of the telescopic cavity and the barrier block is a convex structure, which can ensure that the barrier block will not separate from the fixed sleeve from above the telescopic cavity.

[0015] Preferably, a translation track is fixed on the left side below the movable placement plate, and the two limit plates are slidably installed on the translation track. A translation slot is provided on the limit plate, and the rear end of the translation slot is higher than the front end. A driving pin is fixed on the adjustment plates in the positioning structure one and the positioning structure two, and the two driving pins are slidably inserted into the translation slots on the two limit plates. When the clamping plate presses and fixes the aluminum strip below, the driving pin is at the bottom and the limit plate moves to the maximum position. At this time, the limit plate and its adjacent blocking block are misaligned, and the limit plate can move normally to the left.

[0016] Preferably, a portion of the lower surface of the side of the limiting plate away from the positioning structure 1 is cut away to form a downward pressing inclined surface, and a portion of the upper surface of the side of the blocking block facing the positioning structure 1 is cut away to form a contact inclined surface, the downward pressing inclined surface and the contact inclined surface have the same slope, the bottom end of the limiting plate is above the fixed sleeve, after the movable placement plate moves to the leftmost end, the aluminum strip on the movable placement plate and the aluminum strip on the fixed placement plate will partially overlap for welding, at this time the limiting plate is at the rear side of the blocking block, and the two are staggered;

[0017] When the welding is completed and the clamping plates in the clamping structure 1 and the clamping structure 2 move upward to release the clamping of the aluminum strip, since the lifting spring always has a tendency to move upward, the L-shaped frame and the driving pin will move upward under the action of the lifting spring, so that the limit plate returns to its original state, that is, the limit plate is on the left side of the baffle block. After that, when the movable placement plate and the limit plate move to the right and return to their original position, the downward pressing inclined surface can contact the contact inclined surface and push the contact inclined surface to make the baffle block move downward into the telescopic cavity, so that the movable placement plate and the limit plate can smoothly return to their original position.

[0018] Beneficial effects of the present invention:

[0019] 1. By setting a positioning structure 1 under the fixed placement plate and a positioning structure 2 under the movable placement plate, the positioning structure 1 and the positioning structure 2 can respectively limit the position of the aluminum strips above them, thereby ensuring that the overlapping area of ​​the two aluminum strips during splicing and welding is the required size, improving the welding accuracy, and after one positioning, subsequent aluminum strips of the same size do not need to be positioned again, thereby improving the welding efficiency;

[0020] 2. By connecting the positioning structure 1 with the pressing structure 1, and the positioning structure 2 with the pressing structure 2, after the two aluminum strips are positioned and fixed, the positioning structure 1 and the positioning structure 2 can automatically shrink without interfering with the subsequent splicing;

[0021] 3. Two sets of limit plates are set under the movable placement plate. A barrier is set on the front side of each set of limit plates. The two limit plates are connected to the clamping structure 1 and the clamping structure 2 respectively through the positioning structure 1 and the positioning structure 2 to ensure that the two aluminum strips above are completely clamped and fixed before the movable placement plate can be moved and spliced. This prevents personnel from carelessly forgetting to fix the aluminum strips, resulting in the position of the aluminum strips being offset during the mobile splicing process, thereby improving the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a welding device for aluminum strip splicing proposed by the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the middle plate, laser welding module, fixed placement plate, and movable placement plate;

[0024] Figure 3 for Figure 2 Structural diagram of the fixed placement plate, movable placement plate, and the first and second pressing structures;

[0025] Figure 4 for Figure 2 Schematic diagram of the structure of the middle plate, fixed placement plate and movable placement plate;

[0026] Figure 5 for Figure 4 A partial enlarged schematic diagram;

[0027] Figure 6 for Figure 3 Schematic diagram of the structure of the middle positioning structure 1, positioning structure 2, limit plate and partition;

[0028] Figure 7 for Figure 6 Exploded view of the middle positioning structure 2, the limit plate, and the barrier;

[0029] Figure 8 for Figure 6 Schematic diagram of the structure of the middle limit plate and partition.

[0030] Numbers in the figure: 1, frame; 11, table; 2, mounting frame; 21, cross slide; 22, laser welding module; 3, fixed placement plate; 301, positioning block 1; 302, copper pad; 303, lifting port 1; 31, clamping structure 1; 311, fixed frame; 312, clamping cylinder; 313, clamping plate; 314, guide sleeve; 315, guide rod; 32, lower pressure head 1; 4, movable placement plate; 401, positioning block 2; 41, movable cylinder; 411, connecting frame; 42, clamping structure 2 ;421. Down-pressing head 2;43. Support member;5. Aluminum strip;6. Positioning structure 1;61. Positioning structure 2;611. Fixed column;612. Lifting spring;613. Lifting plate;614. Adjusting plate;615. Positioning pin;616. Driving pin;617. Overlapping part;618. Clamping part;7. Partitioning member;71. Fixed sleeve;72. Telescopic cavity;73. Partitioning block;731. Contact slope;74. Return spring;8. Limiting plate;81. Translation groove;82. Down-pressing slope;83. Translation track. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figures 1-8A welding device for aluminum strip splicing includes a frame 1, a table 11 is fixed above the frame 1, a mounting frame 2 is installed above the table 11, a cross slide 21 is installed above the mounting frame 2, a laser welding module 22 is installed on the slider of the cross slide 21, a fixed placement plate 3 is fixed to the left end of the front side above the table 11, a clamping structure 31 is installed on the right rear side of the fixed placement plate 3, a movable placement plate 4 is installed above the table 11 through a linear track to slide left and right, a clamping structure 2 42 is installed on the rear side of the movable placement plate 4, the opposite side of the two aluminum strips 5 is tilted, the movable placement plate 4 and the fixed placement plate 3 are relatively close. One end of the pair is also designed to be inclined, and the inclination angle is the same as the slope of the aluminum strip 5. Therefore, the clamping structure 1 31, the clamping structure 2 42 and the laser welding module 22 are all inclined. Aluminum strips 5 are placed on the movable placement plate 4 and the fixed placement plate 3 respectively. Positioning structures 1 6 and 2 61 for positioning the two aluminum strips 5 are respectively provided under the fixed placement plate 3 and the movable placement plate 4. Two sets of limit plates 8 are installed for sliding back and forth under the movable placement plate 4. The two limit plates 8 are respectively connected to the positioning structure 1 6 and the positioning structure 2 61. A barrier 7 for limiting the movement of the movable placement plate 4 is also installed on the left side of the limit plate 8.

[0033] Reference Figure 3 、 Figure 4 A positioning block 301 is fixed on the upper rear side of the fixed placement plate 3, and a lifting opening 303 is opened on the upper rear side of the fixed placement plate 3;

[0034] A second positioning block 401 is fixed to the rear side above the movable placement plate 4, and copper pads 302 are embedded in the inclined ends of the fixed placement plate and the movable placement plate 4 that are close to each other. A second lifting port is opened on the front side above the movable placement plate 4.

[0035] A moving cylinder 41 is fixed on the front side above the table 11, and a connecting frame 411 is fixed on the push rod of the moving cylinder 41. The connecting frame 411 is fixed to the moving placement plate 4 by screws. A support member 43 is fixed above the moving placement plate 4. The thickness of the support member 43 is consistent with the thickness of the aluminum strip 5. The bottom end of the aluminum strip 5 on the moving placement plate 4 is flush with the upper surface of the aluminum strip 5 on the fixed placement plate 3. When the moving placement plate 4 drives the aluminum strip 5 above it to move to the left, the left end of the right aluminum strip 5 can be directly overlapped above the right end of the left aluminum strip 5, and there is an overlapping part between the two, which is convenient for subsequent welding.

[0036] Reference Figure 3The pressing structure 31 includes a fixing frame 311 fixed on the table 11, a pressing cylinder 312 is installed above the fixing frame 311, a push rod of the pressing cylinder 312 passes through the fixing frame 311 and is placed below the fixing frame 311, and a pressing plate 313 is fixed to the bottom end of the push rod of the pressing cylinder 312, a lower pressing head 32 is fixed to the rear side below the pressing plate 313, two sets of guide sleeves 314 are fixed on the fixing frame 311, a guide rod 315 is inserted in the guide sleeve 314 for sliding up and down, and the bottom end of the guide rod 315 is connected to the pressing plate 313;

[0037] The structure of the clamping structure 2 42 is the same as that of the clamping structure 1 31. A lower pressure head 2 421 is fixed on the front side below the clamping plate 313 of the clamping structure 2 42. The lower pressure head 1 32 is aligned up and down with the lifting port 1 303, and the lower pressure head 2 421 is aligned up and down with the lifting port 2. The difference between the clamping structure 2 42 and the clamping structure 1 31 is that the clamping structure 1 31 is fixed to the table 11, and the clamping structure 2 42 is fixed on the movable placement plate 4. The clamping structure 2 42 can move left and right with the movable placement plate 4.

[0038] Reference Figure 5-Figure 7 , the second positioning structure 61 includes two fixed columns 611 fixed to the front side of the lower side of the movable placement plate 4, a circular ring is fixed at the bottom end of the fixed column 611, an L-shaped frame is slidably sleeved between the two fixed columns 611, and a jacking spring 612 is sleeved on the fixed column 611. The jacking spring 612 makes the L-shaped frame always have a tendency to move upward, and the two ends of the jacking spring 612 are respectively abutted against the circular ring and the L-shaped frame. Two positioning pins 615 are fixed above the end of the L-shaped frame away from the fixed column 611. The positioning pin 615 is on the left side of the movable placement plate 4, and the top of the positioning pin 615 is above the movable placement plate 4. Screw holes are formed through the upper and lower fixed columns 611, and bolts are connected in the screw holes and fixed to the upper movable placement plate 4;

[0039] The structures of positioning structure 1 6 and positioning structure 2 61 are the same. The difference between the two is that the two fixed columns 611 below positioning structure 1 6 are fixed below the fixed placement plate 3. The positioning structure 1 6 and positioning structure 2 61 are staggered. The positioning pin 615 in positioning structure 1 6 is on the right side of the fixed placement plate 3, and the top of the positioning pin 615 is above the fixed placement plate 3. The L-shaped frame in positioning structure 1 6 is directly below the lower pressure head 1 32, and the L-shaped frame in positioning structure 2 61 is directly below the lower pressure head 2 421. When positioning structure 2 61 moves to the left following the movable placement plate 4, positioning structure 1 6 will not collide with positioning structure 2 61, thus avoiding interference.

[0040] The L-shaped frame includes a lifting plate 613 and an adjusting plate 614. The lifting plate 613 is slidably sleeved on the two fixed columns 611. The upper half of the lifting plate 613 near the limit plate 8 is cut off to form an overlapping portion 617, and the lower part of the adjusting plate 614 near the limit plate 8 is cut off to form a clamping portion 618. The overlapping portion 617 and the clamping portion 618 are both penetrated from top to bottom to form a strip-shaped opening. The clamping portion 618 and the overlapping portion 617 are fixed by bolts and nuts. When the overlapping portion of the two spliced ​​and welded aluminum strips 5 is long, the nut in the positioning structure 61 is loosened to move the adjusting plate 614 to the right, so that the distance between the positioning pin 615 and the left end of the movable placement plate 4 is the required overlapping length, and then the nut is tightened to adjust the length of the overlapping portion when the two aluminum strips 5 are welded.

[0041] Reference Figure 6-Figure 8 The baffle 7 includes a fixed sleeve 71 fixed above the table 11. The fixed sleeve 71 penetrates up and down to form a telescopic cavity 72. A baffle block 73 is inserted into the telescopic cavity 72 for sliding up and down. A return spring 74 is placed in the telescopic cavity 72. The two ends of the return spring 74 are respectively in contact with the baffle block 73 and the table 11. The return spring 74 makes the baffle block 73 always have a tendency to move upward. The cross-section of the telescopic cavity 72 and the baffle block 73 is a convex structure, which can ensure that the baffle block 73 will not separate from the fixed sleeve 71 above the telescopic cavity 72.

[0042] A translation track 83 is fixed to the left side below the movable placement plate 4, and the translation track 83 is distributed perpendicular to the two straight rails. The two limit plates 8 are slidably installed on the translation track 83, and a translation slot 81 is provided on the limit plate 8. The rear end of the translation slot 81 is higher than the front end. A driving pin 616 is fixed on the adjustment plate 614 in the positioning structure 1 6 and the positioning structure 2 61 respectively. The two driving pins 616 are slidably inserted into the translation slots 81 on the two limit plates 8 respectively. After the two aluminum strips 5 to be spliced ​​are placed on the fixed placement plate 3 and the movable placement plate 4 respectively, after the aluminum strips 5 are positioned, the pressing plates 313 in the pressing structure 1 31 and the pressing structure 2 42 are respectively moved downward to press the aluminum strip 5 below. Fixed, when the clamping plate 313 in the clamping structure 1 31 and the clamping structure 2 42 moves downward, the lower pressure head 1 32 and the lower pressure head 2 421 in the clamping structure 1 31 and the clamping structure 2 42 will also push the L-shaped frame to move downward together, thereby causing the driving pin 616 to move downward together. During the downward vertical movement of the driving pin 616, since the rear end of the translation slot 81 is higher than the front end, the limit plate 8 will move backward under the action of the driving pin 616. When the clamping plate 313 presses and fixes the aluminum strip 5 below, the driving pin 616 is at the bottom at this time, and the limit plate 8 moves to the maximum position. At this time, the limit plate 8 is misaligned with the adjacent blocking block 73, and the limit plate 8 can move normally to the left.

[0043] The limiting plate 8 is away from the positioning structure 1 6. The lower part of the surface of the side of the limiting plate 8 is cut away to form a downward pressing slope 82, and the upper part of the surface of the side of the blocking block 73 facing the positioning structure 1 6 is cut away to form a contact slope 731. The downward pressing slope 82 has the same slope as the contact slope 731. The bottom end of the limiting plate 8 is above the fixed sleeve 71. After the movable placement plate 4 moves to the leftmost end, the aluminum strip 5 on the movable placement plate 4 and the aluminum strip 5 on the fixed placement plate 3 will partially overlap for welding. At this time, the limiting plate 8 moves backward and is at the rear side of the blocking block 73. The two are staggered. When welding is completed, the clamping structure 1 31 and the clamping structure 2 42 in the clamping plate 313 move upward. When the pressure on the aluminum strip 5 is released, since the lifting spring 612 always has a tendency to move upward, the L-shaped frame and the driving pin 616 will move upward under the action of the lifting spring 612, so that the limit plate 8 returns to its original state, that is, the limit plate 8 is on the left side of the blocking block 73. Observed from left to right, part of the limit plate 8 at this time overlaps with part of the blocking block 73. Afterwards, when the movable placement plate 4 and the limit plate 8 move to the right and return to their original position, the downward pressing slope 82 can contact the contact slope 731 and push the contact slope 731 to make the blocking block 73 move downward into the telescopic cavity 72, so that the movable placement plate 4 and the limit plate 8 can smoothly return to their original position.

[0044] Working principle: A control box is provided on the table 11, and a plurality of independent control switches are installed on the control box, which are used to control the moving cylinder 41, the clamping structure 1 31, the clamping cylinder 312 of the clamping structure 2 42 and the laser welding module 22 respectively.

[0045] When welding two aluminum strips 5 together, first determine the size of the overlapping portion of the two aluminum strips 5, then loosen the nut in the second positioning structure 61, and move the adjustment plate 614 to the right. When the distance between the positioning pin 615 and the left end of the movable placement plate 4 is the desired overlapping length, tighten the nut to adjust the length of the overlapping portion of the two aluminum strips 5 when welding.

[0046] After that, the two aluminum strips 5 are placed on the fixed placement plate 3 and the movable placement plate 4 respectively. The rear end of the aluminum strip 5 above the movable placement plate 4 abuts against the positioning block 401, and the left end of the aluminum strip 5 contacts the two positioning pins 615 in the positioning structure 61. Then, the power supply of the pressing cylinder 312 in the pressing structure 42 can be turned on, and the push rod of the pressing cylinder 312 moves downward to drive the pressing plate 313 below to move downward. When the pressing plate 313 in the pressing structure 42 moves downward, the lower pressure head 421 in the pressing structure 42 will also push the positioning structure 61 The L-shaped frame moves downward therewith, thereby causing the driving pin 616 to move downward. During the downward vertical movement of the driving pin 616, since the rear end of the translation slot 81 is higher than the front end, the limiting plate 8 will move backward along the translation track 83 under the action of the driving pin 616. When the pressing plate 313 presses and fixes the aluminum strip 5 below, the driving pin 616 is at the lowest position and the limiting plate 8 moves to the maximum position. At this time, the limiting plate 8 connected to the driving pin 616 in the second positioning structure 61 is misaligned with the adjacent blocking block 73, that is, the limiting plate 8 is on the right side of the adjacent blocking block 73.

[0047] The rear end of the aluminum strip 5 located above the fixed placement plate 3 abuts against the positioning block 301, and the right end of the aluminum strip 5 abuts against the two positioning pins 615 in the positioning structure 1 6. Then the power supply of the pressing cylinder 312 in the pressing structure 1 31 can be turned on. The same as the above principle, when the pressing plate 313 in the pressing structure 1 31 completely presses the aluminum strip 5 on the fixed placement plate 3, the limiting plate 8 connected to the driving pin 616 in the positioning structure 1 6 and the adjacent blocking block 73 are also misaligned. At this time, the two limiting plates 8 are misaligned with the two blocking members 7, and the lock of the movable placement plate 4 can be released. At this time, the movable placement plate 4 can move to the left.

[0048] Afterwards, the movable placement plate 4 is moved to the left by moving the cylinder 41. Since a support member 43 is fixed above the movable placement plate 4, the thickness of the support member 43 is consistent with the thickness of the aluminum strip 5. The bottom end of the aluminum strip 5 on the movable placement plate 4 is flush with the upper surface of the aluminum strip 5 on the fixed placement plate 3. When the movable placement plate 4 drives the aluminum strip 5 above it to move to the left, the left end of the right aluminum strip 5 can be directly overlapped above the right end of the left aluminum strip 5. There is an overlapping part between the two, and the overlapping part is the required overlapping size. Afterwards, the position and angle of the laser welding module 22 can be adjusted by the cross slide 21 to weld the two spliced ​​aluminum strips 5.

[0049] After welding is completed, the pressure of the pressing plate 313 in the pressing structure 1 31 and the pressing structure 2 42 on the lower aluminum strip 5 is released. At this time, the aluminum strip 5 after the splicing and welding is completed can be removed, and then the movable placement plate 4 is moved to the right and returned to its original position by the moving cylinder 41;

[0050] When welding is completed and the clamping structure 1 31 and the clamping plate 313 in the clamping structure 2 42 move upward to release the pressure on the aluminum strip 5, since the lifting spring 612 always has a tendency to move upward, the L-shaped frame and the driving pin 616 will move upward under the action of the lifting spring 612, so that the limit plate 8 returns to its original state. At this time, part of the limit plate 8 overlaps with part of the blocking block 73. After that, when the movable placement plate 4 and the limit plate 8 move to the right and return to their original position, the downward pressing slope 82 can contact the contact slope 731 and push the contact slope 731 to make the blocking block 73 move downward into the telescopic cavity 72, so that the movable placement plate 4 and the limit plate 8 can return to their original position smoothly, and the next splicing and welding operation can be carried out.

[0051] By providing a first positioning structure 6 below the fixed placement plate 3 and a second positioning structure 61 below the movable placement plate 4, the first positioning structure 6 and the second positioning structure 61 can respectively define the position of the aluminum strip 5 above them, thereby ensuring that the overlapping area of ​​the two aluminum strips 5 during splicing and welding is the required size, thereby improving the welding accuracy;

[0052] By connecting the first positioning structure 6 to the first pressing structure 31 and the second positioning structure 61 to the second pressing structure 42, after the two aluminum strips 5 are positioned and fixed, the first positioning structure 6 and the second positioning structure 61 can automatically shrink without interfering with the subsequent splicing;

[0053] Two groups of limiting plates 8 are arranged under the movable placement plate 4, and a barrier member 7 is respectively arranged on the front side of the two groups of limiting plates 8. The two limiting plates 8 are respectively connected to the clamping structure 1 31 and the clamping structure 2 42 through the positioning structure 1 6 and the positioning structure 2 61, so as to ensure that the movable placement plate 4 can be moved and spliced ​​only after the two aluminum strips 5 above are completely clamped and fixed, so as to prevent personnel from carelessly forgetting to fix the aluminum strips 5, resulting in the position of the aluminum strips 5 being offset during the moving splicing process, thereby improving the welding accuracy.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0056] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding device for aluminum strip splicing, characterized in that: The machine comprises a frame (1), a table (11) is fixed on the top of the frame (1), a mounting frame (2) is installed on the top of the table (11), a cross slide (21) is installed on the top of the mounting frame (2), a laser welding module (22) is installed on the slider of the cross slide (21), a fixed placement plate (3) is fixed on the left end of the front side above the table (11), a clamping structure (31) is installed on the right rear side of the fixed placement plate (3), a movable placement plate (4) is installed on the top of the table (11) through a linear track to slide left and right, and the movable placement plate (4) is installed on the rear side. A second pressing structure (42) is installed on the side, and aluminum strips (5) are placed on the movable placement plate (4) and the fixed placement plate (3), respectively. Positioning structure one (6) and positioning structure two (61) for positioning the two aluminum strips (5) are respectively provided below the fixed placement plate (3) and the movable placement plate (4). Two sets of limiting plates (8) are installed to slide forward and backward below the movable placement plate (4), and the two limiting plates (8) are connected to the positioning structure one (6) and the positioning structure two (61), respectively. A barrier (7) for limiting the movement of the movable placement plate (4) is also installed on the left side of the limiting plate (8).

2. The welding equipment for aluminum strip splicing according to claim 1, characterized in that: A positioning block (301) is fixed on the upper rear side of the fixed placement plate (3), and a lifting opening (303) is opened on the upper rear side of the fixed placement plate (3); A second positioning block (401) is fixed on the upper rear side of the movable placement plate (4), copper pads (302) are embedded in the mutually approaching inclined ends of the fixed placement plate (3) and the movable placement plate (4), and a second lifting opening is opened on the upper front side of the movable placement plate (4).

3. The welding equipment for aluminum strip splicing according to claim 1, characterized in that: A movable cylinder (41) is fixed on the front side above the table (11), a connecting frame (411) is fixed on the push rod of the movable cylinder (41), the connecting frame (411) is fixed to the movable placement plate (4) by screws, and a support member (43) is fixed above the movable placement plate (4).

4. The welding equipment for aluminum strip splicing according to claim 1, characterized in that: The clamping structure (31) includes a fixing frame (311) fixed on the table (11), a clamping cylinder (312) is installed above the fixing frame (311), a push rod of the clamping cylinder (312) passes through the fixing frame (311) and is placed below the fixing frame (311), and a clamping plate (313) is fixed to the bottom end of the push rod of the clamping cylinder (312), a lower pressure head (32) is fixed to the rear side below the clamping plate (313), two groups of guide sleeves (314) are fixed on the fixing frame (311), a guide rod (315) is inserted in the guide sleeve (314) for sliding up and down, and the bottom end of the guide rod (315) is connected to the clamping plate (313); The structure of the second clamping structure (42) is the same as that of the first clamping structure (31), and a second lower pressure head (421) is fixed to the front side below the clamping plate (313) of the second clamping structure (42), and the first lower pressure head (32) is aligned with the first lifting port (303) in the vertical direction, and the second lower pressure head (421) is aligned with the second lifting port in the vertical direction.

5. The welding equipment for aluminum strip splicing according to claim 1, characterized in that: The second positioning structure (61) includes two fixed columns (611) fixed on the front side below the movable placement plate (4), a circular ring is fixed at the bottom end of the fixed column (611), an L-shaped frame is slidably sleeved between the two fixed columns (611), a lifting spring (612) is sleeved on the fixed column (611), and the two ends of the lifting spring (612) are respectively in contact with the circular ring and the L-shaped frame, and two positioning pins (615) are fixed above the end of the L-shaped frame away from the fixed column (611), the positioning pin (615) is located on the left side of the movable placement plate (4), and the top end of the positioning pin (615) is located above the movable placement plate (4); The positioning structure 1 (6) has the same structure as the positioning structure 2 (61), and the positioning structure 1 (6) and the positioning structure 2 (61) are designed to be staggered. The positioning pin (615) in the positioning structure 1 (6) is located on the right side of the fixed placement plate (3), and the top end of the positioning pin (615) is located above the fixed placement plate (3). The L-shaped frame in the positioning structure 1 (6) is located directly below the lower pressure head 1 (32), and the L-shaped frame in the positioning structure 2 (61) is located directly below the lower pressure head 2 (421).

6. The welding equipment for aluminum strip splicing according to claim 5, characterized in that: The L-shaped frame comprises a lifting plate (613) and an adjusting plate (614). The lifting plate (613) is slidably sleeved on two fixing columns (611) up and down. The upper half of one end of the lifting plate (613) close to the limiting plate (8) is cut off to form a lap joint (617). The lower half of one end of the adjusting plate (614) close to the limiting plate (8) is cut off to form a clamping portion (618). The lap joint (617) and the clamping portion (618) are both penetrated up and down to form a strip-shaped opening. The clamping portion (618) and the lap joint (617) are fixed by bolts and nuts.

7. The welding equipment for aluminum strip splicing according to claim 5, characterized in that: The barrier member (7) comprises a fixed sleeve (71) fixed above the table (11), the fixed sleeve (71) penetrates up and down to form a telescopic cavity (72), a barrier block (73) is inserted and slidably inserted in the telescopic cavity (72), a return spring (74) is placed in the telescopic cavity (72), and two ends of the return spring (74) are respectively in contact with the barrier block (73) and the table (11).

8. The welding equipment for aluminum strip splicing according to claim 6, characterized in that: A translation track (83) is fixed on the left side below the movable placement plate (4), and the two limiting plates (8) are slidably installed on the translation track (83). A translation slot (81) is provided on the limiting plate (8), and the rear end of the translation slot (81) is higher than the front end. A driving pin (616) is fixed on the adjustment plate (614) in the positioning structure 1 (6) and the positioning structure 2 (61), respectively. The two driving pins (616) are slidably inserted into the translation slots (81) on the two limiting plates (8).

9. The welding equipment for aluminum strip splicing according to claim 7, characterized in that: A portion of the surface of the side of the limiting plate (8) away from the positioning structure (6) is cut away to form a downward pressing inclined surface (82), and a portion of the surface of the side of the blocking block (73) facing the positioning structure (6) is cut away to form a contact inclined surface (731). The downward pressing inclined surface (82) has the same slope as the contact inclined surface (731).

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