Automatic shearing butt welding machine

Abstract

The present invention relates to an automatic shearing and welding machine, which belongs to the technical field of shearing and welding. The automatic shearing and welding machine comprises a base and a supporting platform fixedly connected to the top of the base, and further comprises: a fixing frame, a shearing mechanism and a welding mechanism; a pressing mechanism; an upper grinding mechanism, the upper grinding mechanism comprising a first grinding disc; a lower grinding mechanism, the lower grinding mechanism comprising a second grinding disc on the same axis as the first grinding disc; and a lifting mechanism. The present invention uses the upper grinding mechanism and the lower grinding mechanism in coordination. When the laser welding head starts welding, the upper grinding mechanism and the lower grinding mechanism will grind the upper and lower surfaces of the sheared portion of the steel strip, thereby deburring the sheared portion of the steel strip, ensuring the cleanliness of the sheared portion of the steel strip, avoiding the presence of burrs affecting the quality of subsequent welding, reducing the probability of generating pores, ensuring the quality of the welded portion of the steel strip, and thus ensuring the quality of products produced using the welded steel strip.

Description

Technical Field

[0001] The invention belongs to the technical field of shearing butt welding, and in particular relates to an automatic shearing butt welding machine. Background Art

[0002] Steel belt refers to a conveyor belt made of carbon steel. It serves as the traction and carrying component of a belt conveyor and can also be used to bundle goods. Steel belt is usually supplied in coils, with a limited length of a single coil and uneven ends. Therefore, when a coil is used up, the head of the next coil must be welded to the tail of the previous coil through shearing and butt welding to ensure continuous production and avoid frequent downtime.

[0003] At present, when using rolled steel strips to produce structural parts, the steel strips need to be cut into sections. When the steel strips are about to be used up, there will be a problem that the length of the remaining steel strips is not enough to produce structural parts of corresponding lengths. At this time, the tail of the remaining steel strips needs to be connected with the head of the new steel strips by first shearing and then butt welding. When the steel strips are sheared by a shear knife, burrs will be generated on the sheared parts of the steel strips. The presence of burrs will cause arcs and sparks to fly during laser welding, resulting in air holes in the butt welding parts of the steel strips, causing unstable welding, resulting in the subsequent production of finished products failing to meet the requirements, resulting in waste of resources. Based on this, an automatic shearing and butt welding machine is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic shearing and welding machine with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An automatic shearing and butt welding machine includes a base and a supporting platform fixedly connected to the top of the base, and further includes:

[0007] A fixing frame fixedly connected to the top of the base, wherein the inner top of the fixing frame is fixedly connected with a shearing mechanism and a welding mechanism;

[0008] A clamping mechanism fixedly connected to the top of the base;

[0009] An upper grinding mechanism installed in the welding mechanism, the upper grinding mechanism comprising a first tooth rod and a first rotary disk, the outer surface of the first rotary disk being fixedly connected to a first gear meshing with the first tooth rod, and the bottom of the first rotary disk being fixedly connected to a first grinding disk;

[0010] A lower grinding mechanism connected to the welding mechanism through a transmission mechanism, the lower grinding mechanism comprising a second tooth rod and a second rotary disk, the outer surface of the second rotary disk being fixedly connected to a second gear meshing with the second tooth rod, the top of the second rotary disk being fixedly connected to a second grinding disk, the second grinding disk and the first grinding disk being on the same axis;

[0011] A lifting mechanism is fixedly connected to the top of the base and is used to lift the lower grinding mechanism.

[0012] As a further optimization scheme of the present invention, the welding mechanism includes a second hydraulic cylinder fixedly connected to the top of the fixed frame, the bottom of the second hydraulic cylinder is fixedly connected to a fixed frame, one end of the fixed frame is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a first threaded rod, the outer surface of the first threaded rod is threadedly connected to a first displacement block, the first displacement block is slidably connected to the fixed frame, the bottom of the first displacement block is fixedly connected to a laser welding head, and an air blowing pipe is fixedly connected through the first displacement block.

[0013] As a further optimization scheme of the present invention, the first threaded rod passes through the fixed frame and is rotatably connected to the fixed frame, the blowing end of the blowing pipe is inclined and faces the laser welding head, the first tooth rod is fixedly connected to the bottom of the fixed frame, and the first turntable is rotatably connected to the bottom of the first displacement block.

[0014] As a further optimization scheme of the present invention, the lower grinding mechanism also includes a lifting frame, a second threaded rod is rotatably connected to the lifting frame, a second displacement block is threadedly connected to the second threaded rod, the second displacement block is slidingly connected to the lifting frame, the second tooth rod is fixedly connected to the top of the lifting frame, the second turntable is rotatably connected to the top of the second displacement block, a grinding groove is opened on the support platform, and the lifting frame is located in the grinding groove.

[0015] As a further optimization scheme of the present invention, the transmission mechanism includes a transmission shaft rotatably connected to the base and the fixed frame, the transmission shaft passes through the fixed frame and the lifting frame, a limiting slide groove is provided on the transmission shaft, the outer surface of the transmission shaft is slidably connected with a first bevel gear, the first bevel gear is rotatably connected to the fixed frame, a first slider is fixedly connected inside the first bevel gear, the first slider is slidably connected to the limiting slide groove, the outer surface of the transmission shaft is slidably connected with a third bevel gear, the third bevel gear is rotatably connected to the lifting frame, a second slider is fixedly connected inside the third bevel gear, and the second slider is slidably connected to the limiting slide groove.

[0016] As a further optimization solution of the present invention, the end of the first threaded rod is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the end of the second threaded rod is fixedly connected to a fourth bevel gear, the fourth bevel gear is meshed with the third bevel gear.

[0017] As a further optimization scheme of the present invention, the lifting mechanism includes a piston cylinder fixedly connected to the top of the base, a piston rod is sealingly and slidingly connected in the piston cylinder, the piston rod is fixedly connected to the bottom of the fixed frame, a connecting groove is provided in the base, the connecting groove is connected to the interior of the piston cylinder, a liquid tank is provided in the base, the liquid tank is connected to the interior of the connecting groove, a lifting plate is sealingly and slidingly connected in the liquid tank, and the lifting plate is fixedly connected to the lifting frame.

[0018] As a further optimization scheme of the present invention, the shearing mechanism includes a first hydraulic cylinder fixedly connected to the top of the fixed frame, the bottom of the first hydraulic cylinder is fixedly connected to a mounting plate, the bottom of the mounting plate is fixedly connected to a cutter, one side of the cutter is fixedly connected to a grinding plate, and the grinding plate is fixedly connected to a plurality of grinding strips, and the plurality of grinding strips are all arranged at an angle.

[0019] As a further optimization scheme of the present invention, the clamping mechanism includes a connecting frame located at the top of the mounting plate, both ends of the connecting frame are fixedly connected with clamping blocks, both ends of the clamping blocks are fixedly connected with lifting and telescopic rods, and the lifting and telescopic rods are fixedly connected to the top of the base.

[0020] As a further optimization scheme of the present invention, a baffle is fixedly connected to the top of the supporting platform, a through groove is opened on the supporting platform, and the through groove passes through the base, an alignment plate is slidably connected to the supporting platform, an electric screw is installed in the supporting platform, the electric screw passes through the alignment plate and is connected to the alignment plate by a thread, a first electric telescopic rod is fixedly connected to the top of the base, a first leveling roller is installed on the top of the first electric telescopic rod, a second electric telescopic rod is fixedly connected to the top of the base, and a second leveling roller is installed on the top of the second electric telescopic rod.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention uses an upper grinding mechanism and a lower grinding mechanism in conjunction with each other. When the laser welding head starts welding, the upper grinding mechanism and the lower grinding mechanism will grind the upper and lower surfaces of the sheared part of the steel strip, thereby deburring the sheared part of the steel strip, ensuring the cleanliness of the sheared part of the steel strip, avoiding the presence of burrs that affect the quality of subsequent welding, reducing the probability of generating air holes, ensuring the quality of the welded part of the steel strip, and thus ensuring the quality of the products produced using the welded steel strip.

[0023] 2. The present invention uses an upper grinding mechanism and a lower grinding mechanism in coordination. After welding is completed, the upper grinding mechanism and the lower grinding mechanism can still grind the welds of the two steel strips to ensure the flatness and aesthetics of the welds, thereby ensuring the quality of the welding of the two steel strips, so that the welded steel strips can be used directly, reducing the burden on personnel and improving the processing efficiency of the steel strips.

[0024] 3. The present invention arranges the transmission mechanism so that the upper grinding mechanism and the lower grinding mechanism can work synchronously in the same direction and at the same speed, thereby enabling the upper and lower grinding mechanisms to grind the upper and lower surfaces of the same vertical plane of the shearing parts of the two steel strips, and are always in front of the forward direction of the laser welding head. Therefore, they can provide a certain support function for the welding parts of the two steel strips, avoid downward deformation of the steel strips due to the effect of welding temperature, and ensure the quality of welding.

[0025] 4. The present invention uses the first leveling roller and the second leveling roller in conjunction to level the steel strip during its transportation, thereby ensuring the straightness of the steel strip and avoiding the situation where the sheared parts of the two steel strips cannot be on the same horizontal line after contact due to the steel strip being not flat enough, resulting in the welded steel strip being unusable, thereby ensuring the efficiency of shearing and welding the steel strip.

[0026] 5. The present invention sets inclined grinding strips so that when the cutter moves up and down, multiple inclined grinding strips will grind the cut surface of the steel strip to remove burrs on the cut surface, ensure that the cut surfaces of the two steel strips are tightly fitted, and avoid the occurrence of loose welds caused by burrs on the cut surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the front overall three-dimensional structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the front middle section structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the present invention with the middle part cut away from the side;

[0030] Figure 4 The present invention Figure 3 A in the middle is an enlarged structural diagram;

[0031] Figure 5 It is a schematic diagram of the side cutaway structure of the present invention;

[0032] Figure 6 The present invention Figure 5 The enlarged structural diagram at B in the middle;

[0033] Figure 7The present invention Figure 5 The enlarged structural diagram at C in the middle;

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the shearing mechanism of the present invention;

[0035] Figure 9 It is a three-dimensional bottom-up structural schematic diagram of the upper grinding mechanism and the lower grinding mechanism of the present invention;

[0036] Figure 10 It is a three-dimensional partially cutaway structural diagram of the upper grinding mechanism and the lower grinding mechanism of the present invention;

[0037] Figure 11 It is a schematic diagram of the three-dimensional structure of the transmission mechanism of the present invention;

[0038] Figure 12 It is a three-dimensional structural schematic diagram of the shearing mechanism and the pressing mechanism of the present invention.

[0039] In the figure: 1. base; 2. supporting platform; 3. baffle; 4. alignment plate; 5. electric screw; 6. fixing frame; 7. first electric telescopic rod; 8. first leveling roller; 9. second electric telescopic rod; 10. second leveling roller; 11. shearing mechanism; 1101. first hydraulic cylinder; 1102. mounting plate; 1103. cutter; 1104. grinding plate; 1105. grinding strip; 12. through-groove; 13. pressing mechanism; 1301. connecting frame; 1302. pressing block; 1303. lifting telescopic rod; 14. grinding groove; 15. welding mechanism; 1501. second hydraulic cylinder; 1502. fixing frame; 1503. servo motor; 1504. first threaded rod; 1505. first displacement block; 1506. laser welding head; 1507. air blow pipe; 16. transmission mechanism; 1601. Drive shaft; 1602. Limiting slide; 1603. First slider; 1604. First bevel gear; 1605. Second bevel gear; 1606. Second slider; 1607. Third bevel gear; 1608. Fourth bevel gear; 17. Upper grinding mechanism; 1701. First tooth rod; 1702. First gear; 1703. First turntable; 1704. First grinding disc; 18. Lower grinding mechanism; 1801. Lifting frame; 1802. Second threaded rod; 1803. Second displacement block; 1804. Second turntable; 1805. Second gear; 1806. Second grinding disc; 1807. Second tooth rod; 19. Lifting mechanism; 1901. Piston rod; 1902. Piston cylinder; 1903. Connecting groove; 1904. Liquid tank; 1905. Lifting plate. DETAILED DESCRIPTION

[0040] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0041] Example: Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 8 and Figure 12 As shown, an automatic shearing and welding machine includes a base 1 and a supporting platform 2 fixedly connected to the top of the base 1, a through slot 12 is opened on the supporting platform 2, and the through slot 12 passes through the base 1, baffles 3 are fixedly connected to both sides of the top of the supporting platform 2, and alignment plates 4 are slidably connected on both sides of the supporting platform 2, and the baffles 3 on the same side are opposite to the alignment plates 4. An electric screw 5 is installed in the supporting platform 2, and the electric screw 5 passes through the alignment plate 4 and is connected to the alignment plate 4 by a thread. Four first electric telescopic rods 7 are fixedly connected to the top of the base 1, and the four first electric telescopic rods 7 are grouped in twos and are respectively located on both sides of the supporting platform 2. A first leveling roller 8 is installed on the top of the first electric telescopic rod 7 on the same side, and four second electric telescopic rods 9 are fixedly connected to the top of the base 1, and the four second electric telescopic rods 9 are grouped in twos and are respectively located on both sides of the supporting platform 2, and a second leveling roller 10 is installed on the top of the second electric telescopic rod 9 on the same side. The first leveling roller 8 and the second leveling roller 10 are both electric rollers. The fixing frame 6 is fixedly connected to the top of the base 1, and the inner top of the fixing frame 6 is fixedly connected to the shearing mechanism 11 and the welding mechanism 15. The shearing mechanism 11 includes a first hydraulic cylinder 1101 fixedly connected to the inner top of the fixing frame 6. The bottom of the first hydraulic cylinder 1101 is fixedly connected to the mounting plate 1102. The bottom of the mounting plate 1102 is fixedly connected to the cutter 1103. The cutter 1103 is located just above the through slot 12. A grinding plate 1104 is fixedly connected to one side of the cutter 1103. The grinding plate A plurality of grinding strips 1105 are fixedly connected to 1104, and the plurality of grinding strips 1105 are all arranged at an angle. The shearing butt welding machine also includes: a clamping mechanism 13 fixedly connected to the top of the base 1, the clamping mechanism 13 includes a connecting frame 1301 located at the top of the mounting plate 1102, and both ends of the connecting frame 1301 are fixedly connected to a clamping block 1302, and both ends of the clamping block 1302 are fixedly connected to a lifting and telescopic rod 1303, and the lifting and telescopic rod 1303 is fixedly connected to the top of the base 1.

[0042] During use, when the tail of the steel strip needs to be connected with the head of a new roll of steel strip by cutting first and then butt welding, the steel strip to be cut and butt welded is first placed on the top of the supporting platform 2, and the steel strip passes through the first leveling roller 8 and is located between the alignment plate 4 and the baffle 3, and then the electric screw 5 is started to move the alignment plate 4 toward the baffle 3, so that the alignment plate 4 pushes the steel strip to fit with the baffle 3 and the alignment plate 4. At this time, the distance between the first leveling roller 8 and the second leveling roller 10 and the supporting platform 2 is adjusted according to the thickness of the steel strip, so that the first leveling roller 8 and the second leveling roller 10 can Drive the steel strip to move, then the first leveling roller 8 can be started to transport the steel strip and level the steel strip to ensure the straightness of the steel strip, so that the steel strip passes through the bottom of the pressing block 1302 and the cutter 1103 is directly above the shearing part of the steel strip. At this time, the first hydraulic cylinder 1101 can be started to extend the first hydraulic cylinder 1101 through the mounting plate 1102 to push the cutter 1103 downward. At this time, due to the downward movement of the mounting plate 1102, the connecting frame 1301 will move downward, and then the pressing block 1302 will move downward to press the steel strip, reducing the shearing of the steel strip. The probability of deformation of the steel strip occurs, and the cutter 1103 will continue to move to shear the steel strip, and the cutter 1103 will enter the through groove 12. During this process, multiple inclined grinding strips 1105 will grind the cut surface of the steel strip to remove burrs on the cut surface, ensuring that the cut surfaces of the two cut steel strips can fit tightly together, avoiding the occurrence of weak welds caused by burrs on the cut surfaces, and strip debris produced by cutting will fall through the through groove 12 for easy collection, and then the first hydraulic cylinder 1101 will retract, causing the cutter 1103 to move forward. The first and second leveling rollers 1302 and 1303 are moved upward to the initial position. During this process, the upward movement of the mounting plate 1102 will drive the connecting frame 1301 to move upward, thereby causing the pressing block 1302 to move upward and fail to press the steel strip. At this time, the first leveling roller 8 and the second leveling roller 10 are started, so that the first leveling roller 8 conveys the steel strip inward. When the steel strip contacts the second leveling roller 10, the second leveling roller 10 also conveys the steel strip inward and flattens the steel strip until the cut parts of the two steel strips contact, thereby ensuring the straightness of the steel strip and avoiding the two steel strips from being unable to be welded together straightly due to bending of the steel strip.

[0043] like Figure 6 、 Figure 9 and Figure 10As shown, the welding mechanism 15 includes a second hydraulic cylinder 1501 fixedly connected to the top of the fixing frame 6, the bottom of the second hydraulic cylinder 1501 is fixedly connected to a fixing frame 1502, one end of the fixing frame 1502 is fixedly connected to a servo motor 1503, the output end of the servo motor 1503 is fixedly connected to a first threaded rod 1504, the first threaded rod 1504 passes through the fixing frame 1502 and is rotatably connected to the fixing frame 1502, and the outer surface of the first threaded rod 1504 is connected to the first threaded rod 1504 by a thread. Displacement block 1505, the first displacement block 1505 is slidingly connected to the fixed frame 1502, the bottom of the first displacement block 1505 is fixedly connected to the laser welding head 1506, and the first displacement block 1505 is fixedly connected with an air blowing pipe 1507, which is fixedly connected to the first displacement block 1505. The air blowing pipe 1507 is fixedly connected to the protective gas source (the protective gas source is the existing technology, which is shown in the figure and will not be described in detail. The protective gas source can be argon or other gas sources), and the blowing end of the air blowing pipe 1507 is tilted and faces the laser welding head 1506.

[0044] When the cutting parts of the two steel strips come into contact, the second hydraulic cylinder 1501 can be started to move the fixed frame 1502 downward until the laser welding head 1506 reaches the welding part. At this time, the servo motor 1503 can be started to make the first displacement block 1505 move directly above the steel strip in the fixed frame 1502 under the action of the first threaded rod 1504 until the laser welding head 1506 reaches the upper edge of the steel strip. At this time, the laser welding head 1506 is started and the air blow pipe 1507 starts to release the protective gas, and the servo motor 1503 is in working state, so that the laser welding head 1506 can cut the shear part of the steel strip. Welding is carried out until the two steel strips are completely welded together, and then the laser welding head 1506 can be closed, and then the servo motor 1503 is started in reverse to move the first displacement block 1505 to the initial position, and then the second hydraulic cylinder 1501 is started to move the laser welding head 1506 upward to the initial position. At this time, the first flattening roller 8 and the second flattening roller 10 in contact with the new roll of steel strip can be started to rotate in the opposite direction, and the first flattening roller 8 and the second flattening roller 10 on the other side are rotated in the original rotation direction, and the welded steel strips can be removed from the top of the support platform 2.

[0045] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 9 and Figure 10As shown, the shear butt welding machine also includes: a lifting mechanism 19 fixedly connected to the top of the base 1 for lifting the lower grinding mechanism 18, the lifting mechanism 19 includes a piston cylinder 1902 fixedly connected to the top of the base 1, and a piston rod 1901 is sealed and slidably connected in the piston cylinder 1902, and the piston rod 1901 is fixedly connected to the bottom of the fixed frame 1502. A connecting groove 1903 is provided in the base 1, and the connecting groove 1903 is connected to the inside of the piston cylinder 1902. A liquid tank 1904 is provided in the base 1, and the liquid tank 1904 is connected to the inside of the connecting groove 1903. A lifting plate 1905 is sealed and slidably connected in the liquid tank 1904, and the piston cylinder 1902, the connecting groove 1903 and the liquid tank 1904 are all filled with liquid.

[0046] When the fixed frame 1502 moves downward, the fixed frame 1502 will push the piston rod 1901 to move into the piston cylinder 1902, so that the piston rod 1901 squeezes the liquid in the piston cylinder 1902 and discharges it into the liquid tank 1904 through the connecting groove 1903, so that the lifting plate 1905 pushes the lower grinding mechanism 18 to move upward until the laser welding head 1506 reaches the welding position.

[0047] like Figure 9 and Figure 10 As shown, the shear butt welding machine also includes: an upper grinding mechanism 17 installed in the welding mechanism 15, the upper grinding mechanism 17 includes a first tooth rod 1701 and a first turntable 1703, the first tooth rod 1701 is fixedly connected to the bottom of the fixed frame 1502, the first turntable 1703 is rotatably connected to the bottom of the first displacement block 1505, the outer surface of the first turntable 1703 is fixedly connected to the first gear 1702 meshing with the first tooth rod 1701, and the bottom of the first turntable 1703 is fixedly connected to the first grinding disc 1704.

[0048] When the laser welding head 1506 starts to weld the steel strips, the first grinding disc 1704 is in contact with the top of the welding part of the two steel strips and there is a certain pressure. In addition, since the laser welding head 1506 is a moving welding process, during the movement, the first gear 1702 will rotate under the action of the first tooth rod 1701, thereby driving the first turntable 1703 to rotate, thereby causing the first grinding disc 1704 to rotate. At this time, since the first grinding disc 1704 is in contact with the top of the welding part of the two steel strips, the first grinding disc 1704 will be pressed against the two steel strips. The parts to be welded are ground to remove the burrs remaining on the top of the steel strip, and the sheared parts of the steel strip are deburred to ensure the cleanliness of the sheared parts of the steel strip, avoid the presence of burrs affecting the quality of subsequent welding, and reduce the probability of generating air holes. In addition, during this process, since the air blow pipe 1507 is in a blowing state, the air blow pipe 1507 can blow the burrs ground off the sheared parts of the two steel strips by the first grinding disc 1704 away from the welding part of the two steel strips, and avoid the presence of burrs affecting the welding quality of the two steel strips by the laser welding head 1506;

[0049] During the resetting process of the first displacement block 1505, the first grinding disc 1704 is still in a rotating state, so the first grinding disc 1704 can grind the welds of the two steel strips to ensure the flatness and beauty of the welds, thereby ensuring the quality of the welding of the two steel strips, so that the welded steel strips can be used directly, reducing the burden on personnel and improving the processing efficiency of the steel strips.

[0050] like Figure 4 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 10 and Figure 11As shown, the shearing butt welding machine also includes: a lower grinding mechanism 18 connected to the welding mechanism 15 through a transmission mechanism 16, the lower grinding mechanism 18 includes a lifting frame 1801, a lifting plate 1905 is fixedly connected to the lifting frame 1801, a second threaded rod 1802 is rotatably connected to the lifting frame 1801, the second threaded rod 1802 and the first threaded rod 1504 have the same size, a second displacement block 1803 is threadedly connected to the second threaded rod 1802, the second displacement block 1803 is slidably connected to the lifting frame 1801, and the top of the lifting frame 1801 is fixedly connected There is a second tooth rod 1807, the top of the second displacement block 1803 is rotatably connected to the second turntable 1804, a grinding groove 14 is provided on the support platform 2, and the lifting frame 1801 is located in the grinding groove 14. The outer surface of the second turntable 1804 is fixedly connected to the second gear 1805 meshing with the second tooth rod 1807, and the top of the second turntable 1804 is fixedly connected to the second grinding disc 1806. The second grinding disc 1806 and the first grinding disc 1704 are on the same axis. The transmission mechanism 16 includes a transmission shaft 1601 rotatably connected to the base 1 and the fixed frame 6. The driving shaft 1601 passes through the fixed frame 1502 and the lifting frame 1801, and a limited sliding groove 1602 is provided on the transmission shaft 1601. The outer surface of the transmission shaft 1601 is slidably connected to the first bevel gear 1604, and the first bevel gear 1604 is rotatably connected to the fixed frame 1502. The end of the first threaded rod 1504 is fixedly connected to the second bevel gear 1605, and the second bevel gear 1605 is meshed with the first bevel gear 1604. The first slider 1603 is fixedly connected to the first bevel gear 1604, and the first slider 1603 is slidably connected to the limited sliding groove 1602. The transmission shaft The outer surface of 1601 is slidingly connected to the third bevel gear 1607, the first bevel gear 1604 and the third bevel gear 1607 have the same size, the third bevel gear 1607 is rotatably connected to the lifting frame 1801, the end of the second threaded rod 1802 is fixedly connected to the fourth bevel gear 1608, the fourth bevel gear 1608 and the second bevel gear 1605 have the same size, the fourth bevel gear 1608 is meshed with the third bevel gear 1607, and the second slider 1606 is fixedly connected to the inside of the third bevel gear 1607, and the second slider 1606 is slidably connected to the limiting slide groove 1602.

[0051] When the fixed frame 1502 moves downward to make the laser welding head 1506 reach the welding position, the lifting frame 1801 will move upward under the action of the lifting mechanism 19, so that the second grinding disc 1806 fits the bottom of the shearing part of the two steel strips until there is a certain pressure, and in this process, due to the downward movement of the fixed frame 1502, the first bevel gear 1604 will be driven to move downward, so that the first slider 1603 slides downward in the limiting slide groove 1602, and when the lifting frame 1801 moves upward, the third bevel gear 1607 will be moved upward, so that the second slider 1606 slides upward along the limiting slide groove 1602, and when the first threaded rod 1504 rotates, the first bevel gear 1604 will be driven to rotate through the second bevel gear 1605, and then the first slider 1603 and the limiting slide will be driven to rotate. The groove 1602 drives the transmission shaft 1601 to rotate, and the transmission shaft 1601 will drive the third bevel gear 1607 to rotate through the limiting sliding groove 1602 and the second slider 1606, and then drive the second threaded rod 1802 to rotate through the fourth bevel gear 1608, so that the second displacement block 1803 and the first displacement block 1505 move in the same direction and at the same speed, so that the second grinding disk 1806 and the first grinding disk 1704 are always on the same axis, and the movement of the second displacement block 1803 will cause the second gear 1805 to rotate under the action of the second tooth rod 1807, and then drive the second grinding disk 1806 to rotate through the second rotating disk 1804, so that the second grinding disk 1806 grinds the bottom of the sheared parts of the two steel strips to remove burrs at the bottom of the sheared parts of the two steel strips, so as to avoid the presence of burrs affecting the quality of welding;

[0052] During the resetting process of the first displacement block 1505, the second displacement block 1803 will also perform a resetting movement. At this time, the second grinding disc 1806 is still in a rotating state. Therefore, the second grinding disc 1806 can grind the welds of the two steel strips to ensure the flatness and beauty of the welds, thereby ensuring the quality of the welding of the two steel strips, so that the welded steel strips can be used directly, reducing the burden on personnel and improving the processing efficiency of the steel strips.

[0053] The specific working principle of the present invention is as follows:

[0054] During use, when the tail of the steel strip needs to be connected with the head of a new roll of steel strip by cutting first and then butt welding, the steel strip to be cut and butt welded is first placed on the top of the supporting platform 2, and the steel strip passes through the first leveling roller 8 and is located between the alignment plate 4 and the baffle 3, and then the electric screw 5 is started to move the alignment plate 4 toward the baffle 3, so that the alignment plate 4 pushes the steel strip to fit with the baffle 3 and the alignment plate 4. At this time, the distance between the first leveling roller 8 and the second leveling roller 10 and the supporting platform 2 is adjusted according to the thickness of the steel strip, so that the first leveling roller 8 and the second leveling roller 10 are aligned with the support platform 2. The leveling roller 10 can drive the steel strip to move. At this time, the first leveling roller 8 can be started to convey the steel strip and level the steel strip to ensure the straightness of the steel strip, so that the steel strip passes through the bottom of the pressing block 1302 and the cutter 1103 is directly above the shearing part of the steel strip. At this time, the first hydraulic cylinder 1101 can be started to extend the first hydraulic cylinder 1101 through the mounting plate 1102 to push the cutter 1103 downward. At this time, due to the downward movement of the mounting plate 1102, the connecting frame 1301 will move downward, and then the pressing block 1302 will move downward. The steel strip is dynamically pressed to reduce the probability of deformation of the steel strip when it is cut, and the cutter 1103 will continue to move to cut the steel strip, and the cutter 1103 will enter the through groove 12. During this process, multiple inclined grinding strips 1105 will grind the cut surface of the steel strip to remove burrs on the cut surface, ensuring that the cut surfaces of the two cut steel strips can fit closely together to avoid the occurrence of loose welds caused by burrs on the cut surface. Then, the first hydraulic cylinder 1101 is retracted to move the cutter 1103 upward to its initial position. During this process, the upward movement of the mounting plate 1102 will drive the connecting frame 1301 to move upward, thereby causing the pressing block 1302 to move upward and fail to press the steel strip. At this time, the first leveling roller 8 and the second leveling roller 10 are started, so that the first leveling roller 8 conveys the steel strip inward. When the steel strip contacts the second leveling roller 10, the second leveling roller 10 also conveys the steel strip inward and leveling the steel strip until the cut parts of the two steel strips contact, thereby ensuring the straightness of the steel strip and preventing the two steel strips from being unable to be welded together straightly due to bending of the steel strips.

[0055] When the cutting parts of the two steel strips come into contact, the second hydraulic cylinder 1501 can be activated to move the fixed frame 1502 downward. When the fixed frame 1502 moves downward, the fixed frame 1502 will push the piston rod 1901 to move into the piston cylinder 1902, so that the piston rod 1901 squeezes the liquid in the piston cylinder 1902 through the connecting groove 1903 and discharges it into the liquid tank 1904, so that the lifting plate 1905 pushes the lifting frame 1801 to move upward until the laser welding head 1506 reaches the welding part. At this time, the first grinding disc 17 04 is in contact with the top of the welding part of the two steel strips and there is a certain pressure. The second grinding disc 1806 is in contact with the bottom of the shearing part of the two steel strips until there is a certain pressure. In this process, due to the downward movement of the fixed frame 1502, the first bevel gear 1604 will be driven to move downward, causing the first slider 1603 to slide downward in the limiting slide groove 1602. When the lifting frame 1801 moves upward, the third bevel gear 1607 will be moved upward, causing the second slider 1606 to slide upward along the limiting slide groove 1602.

[0056] At this time, the servo motor 1503 can be started and the air blow pipe 1507 can be made to start releasing the protective gas. The servo motor 1503 causes the first displacement block 1505 to move directly above the steel strip in the fixed frame 1502 under the action of the first threaded rod 1504 until the laser welding head 1506 reaches the upper edge of the steel strip. At this time, the laser welding head 1506 is started and the servo motor 1503 is in working state, thereby causing the laser welding head 1506 to weld the sheared parts of the steel strip until the two steel strips are completely welded together.

[0057] In this process, since the first grinding disc 1704 is in contact with the top of the welding part of the two steel strips and there is a certain pressure, and since the laser welding head 1506 is a moving welding process, during the movement, the first gear 1702 will be rotated under the action of the first tooth rod 1701, thereby driving the first turntable 1703 to rotate, thereby causing the first grinding disc 1704 to rotate. At this time, since the first grinding disc 1704 is in contact with the top of the welding part of the two steel strips, the first grinding disc 1704 will be pressed against the two steel strips. The parts of the steel strips to be welded are ground to remove the burrs remaining on the top of the steel strips, and the sheared parts of the steel strips are deburred to ensure the cleanliness of the sheared parts of the steel strips, avoid the presence of burrs affecting the quality of subsequent welding, and reduce the probability of generating air holes. In addition, since the air blow pipe 1507 is in the blowing state, the air blow pipe 1507 can blow the burrs ground off from the sheared parts of the two steel strips by the first grinding disc 1704 away from the welding parts of the two steel strips, avoiding the presence of burrs affecting the laser welding. The welding quality of the two steel strips is improved by the head 1506. When the first threaded rod 1504 rotates, the first bevel gear 1604 will be driven to rotate through the second bevel gear 1605, and then the transmission shaft 1601 will be driven to rotate through the first slider 1603 and the limiting slot 1602. The transmission shaft 1601 will drive the third bevel gear 1607 to rotate through the limiting slot 1602 and the second slider 1606, and then drive the second threaded rod 1802 to rotate through the fourth bevel gear 1608, so that the second displacement block 1803 is aligned with the first displacement block 1803. The shift block 1505 moves in the same direction and at the same speed, so that the second grinding disc 1806 and the first grinding disc 1704 are always on the same axis, and the movement of the second displacement block 1803 will cause the second gear 1805 to rotate under the action of the second tooth rod 1807, and then drive the second grinding disc 1806 to rotate through the second turntable 1804, so that the second grinding disc 1806 grinds the bottom of the sheared parts of the two steel strips to remove burrs at the bottom of the sheared parts of the two steel strips, so as to prevent the presence of burrs from affecting the quality of welding;

[0058] When the two steel strips are completely welded together, the laser welding head 1506 can be closed, and then the servo motor 1503 is started in reverse to move the first displacement block 1505 to the initial position. During this process, the first grinding disc 1704 is still in a rotating state, so the first grinding disc 1704 can grind the welds of the two steel strips, and the second displacement block 1803 will also make a reset movement. At this time, the second grinding disc 1806 is still in a rotating state, so the second grinding disc 1806 can grind the welds of the two steel strips to ensure the flatness and beauty of the welds, thereby ensuring the quality of the welding of the two steel strips, so that the welded steel strips can be used directly, reducing the burden on personnel and improving the processing efficiency of the steel strips;

[0059] After the first displacement block 1505 moves to the initial position, the air blow pipe 1507 is stopped to release the protective gas, and the second hydraulic cylinder 1501 is started to move the laser welding head 1506 upward to the initial position. At this time, the first flattening roller 8 and the second flattening roller 10 in contact with the new roll of steel strip can be started to rotate in the opposite direction, and the first flattening roller 8 and the second flattening roller 10 on the other side are rotated in the original rotation direction, so that the welded steel strips can be removed from the top of the support platform 2.

[0060] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. An automatic shearing and welding machine, comprising a base (1) and a supporting platform (2) fixedly connected to the top of the base (1), characterized in that: Also includes: A fixing frame (6) is fixedly connected to the top of the base (1); the inner top of the fixing frame (6) is fixedly connected to a shearing mechanism (11) and a welding mechanism (15); the welding mechanism (15) comprises a second hydraulic cylinder (1501) fixedly connected to the inner top of the fixing frame (6); the bottom of the second hydraulic cylinder (1501) is fixedly connected to a fixing frame (1502); one end of the fixing frame (1502) is fixedly connected to a servo motor (1503); the output end of the servo motor (1503) is fixedly connected to a first threaded rod (1504); the outer surface of the first threaded rod (1504) is connected to a first displacement block (1505) by a thread; the first displacement block (1505) is connected to the fixing frame (1502) by a thread. 2) Sliding connection, the bottom of the first displacement block (1505) is fixedly connected to a laser welding head (1506), the first displacement block (1505) is fixedly connected to an air blowing pipe (1507), the shearing mechanism (11) comprises a first hydraulic cylinder (1101) fixedly connected to the top of the fixed frame (6), the bottom of the first hydraulic cylinder (1101) is fixedly connected to a mounting plate (1102), the bottom of the mounting plate (1102) is fixedly connected to a cutter (1103), one side of the cutter (1103) is fixedly connected to a grinding plate (1104), a plurality of grinding strips (1105) are fixedly connected to the grinding plate (1104), and the plurality of grinding strips (1105) are all arranged obliquely; A clamping mechanism (13) fixedly connected to the top of the base (1), the clamping mechanism (13) comprising a connecting frame (1301) located on the top of the mounting plate (1102), both ends of the connecting frame (1301) being fixedly connected to clamping blocks (1302), both ends of the clamping blocks (1302) being fixedly connected to lifting and telescopic rods (1303), the lifting and telescopic rods (1303) being fixedly connected to the top of the base (1); An upper grinding mechanism (17) installed in the welding mechanism (15), the upper grinding mechanism (17) comprising a first tooth rod (1701) and a first rotating disk (1703), the outer surface of the first rotating disk (1703) being fixedly connected to a first gear (1702) meshing with the first tooth rod (1701), and the bottom of the first rotating disk (1703) being fixedly connected to a first grinding disk (1704); A lower grinding mechanism (18) connected to the welding mechanism (15) via a transmission mechanism (16), the lower grinding mechanism (18) comprising a second toothed rod (1807) and a second rotating disk (1804), the outer surface of the second rotating disk (1804) being fixedly connected to a second gear (1805) meshing with the second toothed rod (1807), the top of the second rotating disk (1804) being fixedly connected to a second grinding disk (1806), the second grinding disk (1806) and the first grinding disk (1704) being on the same axis, The grinding mechanism (18) further comprises a lifting frame (1801), wherein the lifting frame (1801) is provided with a second threaded rod (1802) which is rotatably connected thereto, and the second threaded rod (1802) is provided with a second displacement block (1803) which is threadably connected thereto, and the second displacement block (1803) is slidably connected to the lifting frame (1801), and the second tooth rod (1807) is fixedly connected to the top of the lifting frame (1801), and the second turntable (1804) is rotatably connected to the top of the second displacement block (1803), and the support platform (2) is provided with a second toothed rod (1807) which is fixedly connected to the top of the lifting frame (1801), and the second turntable (1804) is rotatably connected to the top of the second displacement block (1803). A grinding groove (14) is provided, and the lifting frame (1801) is located in the grinding groove (14). The transmission mechanism (16) includes a transmission shaft (1601) rotatably connected to the base (1) and the fixed frame (6). The transmission shaft (1601) passes through the fixed frame (1502) and the lifting frame (1801). A limited sliding groove (1602) is provided on the transmission shaft (1601). The outer surface of the transmission shaft (1601) is slidably connected to a first bevel gear (1604). The first bevel gear (1604) is rotatably connected to the fixed frame (1502). 02) rotationally connected, a first slider (1603) is fixedly connected inside the first bevel gear (1604), the first slider (1603) is slidably connected to the limiting slide groove (1602), the outer surface of the transmission shaft (1601) is slidably connected to the third bevel gear (1607), the third bevel gear (1607) is rotationally connected to the lifting frame (1801), the third bevel gear (1607) is fixedly connected inside the third bevel gear (1607), and the second slider (1606) is slidably connected to the limiting slide groove (1602); A lifting mechanism (19) is fixedly connected to the top of the base (1) and is used to lift the lower grinding mechanism (18).

2. The automatic shearing butt welding machine according to claim 1, characterized in that: The first threaded rod (1504) passes through the fixed frame (1502) and is rotatably connected to the fixed frame (1502); the blowing end of the blowing pipe (1507) is tilted and faces the laser welding head (1506); the first toothed rod (1701) is fixedly connected to the bottom of the fixed frame (1502); and the first turntable (1703) is rotatably connected to the bottom of the first displacement block (1505).

3. The automatic shearing butt welding machine according to claim 1, characterized in that: The end of the first threaded rod (1504) is fixedly connected to a second bevel gear (1605), and the second bevel gear (1605) is meshed with the first bevel gear (1604). The end of the second threaded rod (1802) is fixedly connected to a fourth bevel gear (1608), and the fourth bevel gear (1608) is meshed with the third bevel gear (1607).

4. The automatic shearing butt welding machine according to claim 1, characterized in that: The lifting mechanism (19) includes a piston cylinder (1902) fixedly connected to the top of the base (1), a piston rod (1901) is sealed and slidably connected inside the piston cylinder (1902), and the piston rod (1901) is fixedly connected to the bottom of the fixed frame (1502). A connecting groove (1903) is provided in the base (1), and the connecting groove (1903) is connected to the inside of the piston cylinder (1902). A liquid tank (1904) is provided in the base (1), and the liquid tank (1904) is connected to the inside of the connecting groove (1903). A lifting plate (1905) is sealed and slidably connected inside the liquid tank (1904), and the lifting plate (1905) is fixedly connected to the lifting frame (1801).

5. The automatic shearing butt welding machine according to claim 1, characterized in that: The top of the supporting platform (2) is fixedly connected to a baffle (3), a through groove (12) is provided on the supporting platform (2), and the through groove (12) passes through the base (1), and an alignment plate (4) is slidably connected to the supporting platform (2), an electric screw (5) is installed in the supporting platform (2), and the electric screw (5) passes through the alignment plate (4) and is connected to the alignment plate (4) by a thread, the top of the base (1) is fixedly connected to a first electric telescopic rod (7), the top of the first electric telescopic rod (7) is installed with a first leveling roller (8), the top of the base (1) is fixedly connected to a second electric telescopic rod (9), and the top of the second electric telescopic rod (9) is installed with a second leveling roller (10).

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