A battery cover plate pole welding device

Abstract

The present invention discloses a battery cover plate pole welding device, which relates to the technical field of battery cover plate pole welding, and comprises a base, wherein the upper end of the base is fixedly connected to a mounting frame, and a laser welding device is installed on the top of the mounting frame; a positioning mechanism, wherein the positioning mechanism comprises a vertical slot provided in the mounting frame, a sliding plug is sealingly and slidingly connected to the bottom of the vertical slot, a groove is provided on the inner wall of the mounting frame, a fixing rod is fixedly connected to the upper end of the sliding plug, the upper end of the fixing rod extends into the groove and is fixedly connected to a positioning ring, a first spring is fixedly connected between the bottom of the vertical slot and the sliding plug, and a plurality of slide cylinders are fixedly connected to the inner wall of the positioning ring. In the present invention, when the battery cover plate and the pole are moved to the bottom of the laser welding device, before welding, a plurality of positioning plates will position the pole again to ensure that the pole is located at the welding position, thereby avoiding the problem of pole displacement caused by the battery cover plate during transportation, thereby causing welding offset.

Description

Technical Field

[0001] The invention relates to the technical field of battery cover plate pole welding, and in particular to a battery cover plate pole welding device. Background Art

[0002] Cylindrical battery is a battery with high capacity and long life. It includes different systems such as lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, cobalt-manganese mixture, and ternary materials. Cylindrical battery generally includes a cylindrical shell, one end of which is provided with a positive electrode collector plate, and the other end is provided with a negative electrode collector plate. The positive electrode collector plate is welded and fixed with a positive electrode column to facilitate the end-to-end contact and use of the cylindrical battery in series.

[0003] Existing poles are usually welded to the battery cover, and laser welding is usually used to weld the poles to the battery cover. During welding, the battery cover is positioned in a positioning mold, and the sealing ring and the pole are positioned on the battery cover in turn by a robot. However, in the process of placing the pole on the cover, when the battery cover moves to the welding position, the pole will be displaced, which will lead to poor welding, resulting in poor quality of the battery cover, and even scrapping.

[0004] Based on this, we propose a battery cover plate pole welding device. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a battery cover plate pole welding device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A battery cover plate pole welding device comprises a base, the upper end of the base is fixedly connected to a mounting frame, and the top of the mounting frame is equipped with a laser welding device; The positioning mechanism comprises a vertical slot provided in the mounting frame, a sliding plug is sealingly and slidably connected to the bottom of the vertical slot, a groove is provided in the inner wall of the mounting frame, a fixing rod is fixedly connected to the upper end of the sliding plug, the upper end of the fixing rod extends into the groove and is fixedly connected to a positioning ring, a first spring is fixedly connected between the bottom of the vertical slot and the sliding plug, a plurality of sliding cylinders are fixedly connected to the inner wall of the positioning ring, a conductive slide is sealingly and slidably connected to the inner wall of the sliding cylinder, a positioning rod is fixedly connected to the side wall of the conductive slide, one end of the positioning rod passes through the side wall of the sliding cylinder and is fixedly connected to a positioning plate, and a second spring is fixedly connected between the inner wall of the sliding cylinder and the conductive slide; A conveying mechanism and a driving mechanism are installed on the base.

[0007] Preferably, the conveying mechanism comprises four vertical plates fixedly connected to the upper end of the base, wherein the side walls of two vertical plates located on the same side close to each other are rotatably connected to conveying rollers, and the conveying rollers are connected by conveyor belts.

[0008] Preferably, the driving mechanism includes a motor fixedly connected to the upper end of the base through a bracket, the side wall of the vertical plate is rotatably connected to a rotating shaft, the side wall of the rotating shaft is fixedly connected to a fan-shaped gear, one end of one of the conveying rollers passes through the side wall of the vertical plate and is fixedly connected to a gear, and the output end of the motor is fixedly connected to the rotating shaft.

[0009] Preferably, the positioning mechanism also includes a vertical cylinder fixedly connected to the upper end of the base, the inner wall of the vertical cylinder is sealed and slidably connected with a circular plate, the circular plate divides the interior of the vertical cylinder into two parts, a first pump air chamber and a second pump air chamber, the second pump air chamber is connected with the slide cylinder through a first connecting pipe, the inner wall of the slide cylinder is provided with an exhaust hole and a one-way air inlet hole, the inner wall of the exhaust hole is provided with a pressure relief valve, the first pump air chamber is connected with the vertical groove through the second connecting pipe, the upper end of the circular plate is fixedly connected with a T-bar, the side wall of the rotating shaft is fixedly connected with a cam, the upper end of the T-bar passes through the upper end of the vertical cylinder and slides against the cam, the side wall of the T-bar is sleeved with a third spring, and the two ends of the third spring are respectively fixedly connected to the upper end of the vertical cylinder and the top of the T-bar.

[0010] Preferably, a conductive ring is fixedly embedded in the inner wall of the slide cylinder, a first electric push rod is fixedly connected to the inner wall of the mounting frame, a push plate is fixedly connected to the movable end of the first electric push rod, and the conductive slide plate, the conductive ring, the first electric push rod and the external power supply are electrically connected via a wire.

[0011] Preferably, a detection mechanism is installed on the base, and the detection mechanism includes a U-shaped frame fixedly connected to the upper end of the base, a mounting block is slidably connected to the top of the U-shaped frame, a fourth spring is fixedly connected between the mounting block and the inner wall of the U-shaped frame, a rotating rod is rotatably connected to the inner wall of the mounting block, a detection plate is fixedly connected to the side wall of the rotating rod, and two torsion springs are sleeved on the side wall of the rotating rod, and two ends of the torsion spring are respectively fixedly connected to the side wall of the detection plate and the inner wall of the mounting block.

[0012] Preferably, the detection mechanism also includes a rectangular plate fixedly connected to the upper end of the base, the side wall of the rectangular plate is fixedly connected to a second electric push rod, the movable end of the second electric push rod is fixedly connected to a defective product box, the side wall of the defective product box is fixedly connected to a finished product box, the inner wall of the U-shaped frame is fixedly connected to a delay switch, and the second electric push rod, the delay switch and the external power supply are electrically connected through a wire.

[0013] Preferably, a knocking mechanism is installed on the mounting block, and the knocking mechanism includes a slide groove opened on the side wall of the mounting block, two sliders are slidably connected to the inner wall of the slide groove, and the two side walls of the sliders are fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to a knocking head.

[0014] Preferably, a tensioning mechanism is installed on the mounting frame, and the tensioning mechanism includes a limit groove opened on the side wall of the mounting frame, the inner wall of the limit groove is slidably connected with a rectangular block, the side wall of the rectangular block is rotatably connected with a tensioning wheel through a pin shaft, the inner wall of the limit groove is fixedly connected with a limit rod, the side wall of the limit rod is slidably connected with the rectangular block, the side wall of the limit rod is provided with a fifth spring, and the two ends of the fifth spring are respectively fixedly connected to the inner wall of the limit groove and the rectangular block.

[0015] Preferably, the knocking mechanism also includes two reciprocating screws rotatably connected to the inner wall of the slide groove, the two reciprocating screws are fixedly connected, and the side walls of the two reciprocating screws are respectively threadedly connected to the two sliders, the side wall of the rotating shaft is fixedly connected to a driving wheel, and the side wall of the U-shaped frame is provided with a transverse groove, one end of one of the reciprocating screws passes through the transverse groove and is fixedly connected to a driven wheel, and the driving wheel, the driven wheel and the tensioning wheel are connected by a synchronous belt.

[0016] The present invention has the following beneficial effects: 1. By setting a positioning mechanism and a driving mechanism, when the battery cover and the pole are moved to the bottom of the laser welding device, before welding, multiple positioning plates will reposition the pole to ensure that the pole is located at the welding position, thereby avoiding the problem of pole displacement caused by the battery cover during transportation, thereby causing welding offset; 2. By setting the conductive ring, the first electric push rod and the push plate, if the pole of the battery cover plate falls during the conveying process, the positioning plate will not be able to abut against the side wall of the pole when positioning, and then the conductive slide plate will continue to slide on the inner wall of the slide tube until the conductive slide plate contacts the conductive ring. At this time, the circuit is connected, the first electric push rod will be energized and extended, driving the push plate to move, and push the battery cover plate on the conveyor belt away. At this time, the pole falls and welding cannot be performed, thereby avoiding welding operations and improving welding efficiency; 3. By setting up a detection mechanism, the firmness of the pole after welding can be tested. If the pole after welding is not firmly welded, it will be transported to the defective box. If it is qualified, it will fall into the finished product box. The qualified products can be collected separately from the unqualified products to improve product quality; 4. By setting up the knocking mechanism, the motor will synchronously drive the driving wheel to rotate during the rotation process, and then drive the driven wheel to rotate, drive the reciprocating screw to rotate, and then the slider will slide back and forth on the inner wall of the slide slot, and then drive the two knocking heads to continuously knock on the pole, thereby increasing the detection intensity and ensuring the firmness of the pole after welding; 5. By setting up a tensioning mechanism, when the driven wheel moves back and forth with the mounting block, the rectangular block will also slide in the limit groove under the action of the fifth spring, so that the tensioning wheel can always fit closely with the synchronous belt, ensuring the tension of the synchronous belt and thus ensuring the transmission of power. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a battery cover plate pole welding device proposed by the present invention; Figure 2 for Figure 1 A rear view schematic diagram of the structure in the middle; Figure 3 for Figure 1 A schematic cross-sectional view of the mounting frame and the positioning ring; Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the middle U-shaped frame; Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure of the middle vertical tube; Figure 6 for Figure 2 A schematic diagram of the structure enlargement at point A; Figure 7 for Figure 3 A schematic diagram of the structure at B in FIG. Figure 8 for Figure 4 Schematic diagram of the enlarged structure at position C in FIG.

[0018] In the figure: 1, base; 2, mounting frame; 3, laser welding device; 4, vertical groove; 5, sliding plug; 6, groove; 7, fixing rod; 8, positioning ring; 9, first spring; 10, sliding cylinder; 11, conductive sliding plate; 12, positioning rod; 13, positioning plate; 14, second spring; 15, vertical plate; 16, conveying roller; 17, conveying belt; 18, rotating shaft; 19, gear; 20, sector gear; 21, motor; 22, vertical cylinder; 23, circular plate; 231, first pump air cavity; 232, second pump air cavity; 24, first connecting pipe; 25, exhaust hole; 26, one-way air inlet hole; 27, second connecting pipe; 28, T shaped rod; 29, the third spring; 30, the cam; 31, the conductive ring; 32, the first electric push rod; 33, the U-shaped frame; 34, the mounting block; 35, the fourth spring; 36, the rotating rod; 37, the detection plate; 38, the torsion spring; 39, the rectangular plate; 40, the second electric push rod; 41, the defective box; 42, the finished product box; 43, the delay switch; 44, the slide groove; 45, the slider; 46, the connecting rod; 47, the knocking head; 48, the limit groove; 49, the rectangular block; 50, the tension wheel; 51, the limit rod; 52, the fifth spring; 53, the reciprocating screw; 54, the driving wheel; 55, the driven wheel; 56, the horizontal groove; 57, the push plate. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0020] Reference Figure 1 - Figure 8 A battery cover plate pole welding device comprises a base 1, a mounting frame 2 is fixedly connected to the upper end of the base 1, and a laser welding device 3 is installed on the top of the mounting frame 2; The positioning mechanism includes a vertical slot 4 provided in the mounting frame 2, a sliding plug 5 is sealingly and slidably connected to the bottom of the vertical slot 4, a groove 6 is provided on the inner wall of the mounting frame 2, a fixing rod 7 is fixedly connected to the upper end of the sliding plug 5, the upper end of the fixing rod 7 extends into the groove 6 and is fixedly connected to a positioning ring 8, a first spring 9 is fixedly connected between the bottom of the vertical slot 4 and the sliding plug 5, a plurality of slide cylinders 10 are fixedly connected to the inner wall of the positioning ring 8, a conductive slide plate 11 is sealingly and slidably connected to the inner wall of the slide cylinder 10, a positioning rod 12 is fixedly connected to the side wall of the conductive slide plate 11, one end of the positioning rod 12 passes through the side wall of the slide cylinder 10 and is fixedly connected to a positioning plate 13, and a second spring 14 is fixedly connected between the inner wall of the slide cylinder 10 and the conductive slide plate 11; A conveying mechanism and a driving mechanism are installed on the base 1.

[0021] The conveying mechanism includes four vertical plates 15 fixedly connected to the upper end of the base 1 , wherein the side walls of two vertical plates 15 on the same side close to each other are rotatably connected to conveying rollers 16 , and the conveying rollers 16 are connected by conveyor belts 17 .

[0022] The driving mechanism includes a motor 21 fixedly connected to the upper end of the base 1 through a bracket, and a rotating shaft 18 (such as Figure 6 As shown), a fan-shaped gear 20 is fixedly connected to the side wall of the rotating shaft 18, one end of one of the conveying rollers 16 passes through the side wall of the vertical plate 15 and is fixedly connected to the gear 19, and the output end of the motor 21 is fixedly connected to the rotating shaft 18.

[0023] The positioning mechanism also includes a vertical cylinder 22 fixedly connected to the upper end of the base 1, and a circular plate 23 (such as Figure 5As shown in the figure, the circular plate 23 divides the interior of the vertical cylinder 22 into two parts: a first pump air chamber 231 and a second pump air chamber 232. The second pump air chamber 232 is connected to the slide cylinder 10 through a first connecting pipe 24. An exhaust hole 25 and a one-way air inlet hole 26 are provided on the inner wall of the slide cylinder 10. The one-way air inlet hole 26 only allows external air to enter the slide cylinder 10. A pressure relief valve is installed on the inner wall of the exhaust hole 25. The first pump air chamber 231 is connected to the vertical slot 4 through a second connecting pipe 27. The second connecting pipe 27 is connected to the space below the slide plug 5. A T-shaped rod 28 is fixedly connected to the upper end of the circular plate 23, and a cam 30 is fixedly connected to the side wall of the rotating shaft 18. The upper end of the T-shaped rod 28 passes through the upper end of the vertical cylinder 22 and slides against the cam 30. A third spring 29 is sleeved on the side wall of the T-shaped rod 28. The two ends of the third spring 29 are respectively fixedly connected to the upper end of the vertical cylinder 22 and the top of the T-shaped rod 28.

[0024] Further, the motor 21 is started to drive the rotating shaft 18 to rotate, and then the sector gear 20 is driven to rotate. When the sector gear 20 is meshed with the gear 19, the gear 19 is driven to rotate, and then the conveying roller 16 is driven to rotate, so that the conveying belt 17 moves to convey the battery cover. When the sector gear 20 rotates 90 degrees and separates from the gear 19, the battery cover just moves to the position directly below the laser welding device 3. As the rotating shaft 18 continues to rotate, the cam 30 begins to squeeze the T-bar 28, so that the T-bar 28 drives the circular plate 23 to slide downward in a sealed manner. At this time, the air in the vertical groove 4 is drawn into the first pump air chamber 231 through the second connecting pipe 27. At this time, the sliding plug 5 will slide downward, and then the sliding plug 5 will drive the positioning ring 8 to move downward through the fixing rod 7, and at this time, the air in the second pump air cavity 232 will be squeezed into the slide cylinder 10 through the first connecting pipe 24, pushing the conductive slide plate 11 to slide, driving the positioning rod 12 to move, so that the positioning plate 13 moves toward the center of the positioning ring 8, so that the positioning plates 13 can move downward and move closer to each other synchronously. When the positioning plate 13 moves to abut against the pole, it will push the pole to move and push the pole to the middle position, so that the pole can be repositioned to avoid the displacement of the pole caused by the battery cover during transportation, thereby causing welding offset.

[0025] A conductive ring 31 is fixedly embedded in the inner wall of the slide cylinder 10, a first electric push rod 32 is fixedly connected to the inner wall of the mounting frame 2, a push plate 57 is fixedly connected to the movable end of the first electric push rod 32, and the conductive slide plate 11, the conductive ring 31, the first electric push rod 32 and an external power supply are electrically connected through wires.

[0026] Furthermore, when the battery cover is being transported, if the pole falls over, the positioning plate 13 will not be able to abut against the side wall of the pole during positioning, and the conductive slide plate 11 will continue to slide on the inner wall of the slide tube 10 until the conductive slide plate 11 contacts the conductive ring 31. At this time, the circuit is connected, and the first electric push rod 32 will be energized and extended, driving the push plate 57 to move and push the battery cover on the conveyor belt 17 away. At this time, the pole falls over and welding cannot be performed, thereby avoiding welding operations and improving welding efficiency.

[0027] The base 1 is provided with a detection mechanism, which includes a U-shaped frame 33 fixedly connected to the upper end of the base 1, a mounting block 34 slidably connected to the top of the U-shaped frame 33, a fourth spring 35 fixedly connected between the mounting block 34 and the inner wall of the U-shaped frame 33, and a rotating rod 36 (such as Figure 8 As shown), the side wall of the rotating rod 36 is fixedly connected to the detection plate 37, and the side wall of the rotating rod 36 is sleeved with two torsion springs 38, and the two ends of the torsion spring 38 are fixedly connected to the side wall of the detection plate 37 and the inner wall of the mounting block 34 respectively.

[0028] It should be noted that the stiffness coefficient of the torsion spring 38 is much greater than that of the fourth spring 35 , so that the torsion spring 38 will begin to deform only when the fourth spring 35 is squeezed to the limit.

[0029] The detection mechanism also includes a rectangular plate 39 fixedly connected to the upper end of the base 1, a second electric push rod 40 is fixedly connected to the side wall of the rectangular plate 39, a defective box 41 is fixedly connected to the movable end of the second electric push rod 40, a finished product box 42 is fixedly connected to the side wall of the defective box 41, and a delay switch 43 (such as Figure 4 As shown), the second electric push rod 40, the delay switch 43 and the external power supply are electrically connected through wires.

[0030] Furthermore, the welded pole will continue to move to the right on the conveyor belt 17 along with the battery cover. At this time, the side wall of the pole will abut against the side wall of the detection plate 37, thereby pushing the detection plate 37 and the mounting block 34 to move to the right. When the mounting block 34 moves to abut against the delay switch 43, the mounting block 34 cannot move further. At this time, the pole will squeeze the detection plate 37, causing the detection plate 37 to rotate. After rotating to a certain angle, the pole can pass through the detection plate 37. At this time, the delay switch 43 is turned on, and the second electric push rod 40 is energized and retracted, driving the finished product box 42 to move to the side of the conveyor belt 17, thereby The battery cover will fall into the finished product box 42. If the pole is not welded firmly, the pole may fall down when the pole pushes the mounting block 34 and the detection plate 37 to move, and thus cannot continue to resist the detection plate 37. At this time, the mounting block 34 will be reset under the action of the fourth spring 35, and cannot contact the delay switch 43. The second electric push rod 40 cannot be energized, and the defective box 41 will be on the side of the conveyor belt 17. Then the battery cover will fall into the defective box 41. Therefore, the firmness of the pole on the welded battery cover can be tested, and qualified products can be collected separately from unqualified products to improve product quality.

[0031] A knocking mechanism is installed on the mounting block 34, and the knocking mechanism includes a slide groove 44 opened on the side wall of the mounting block 34. Two sliders 45 are slidably connected to the inner wall of the slide groove 44. The side walls of the two sliders 45 are fixedly connected to a connecting rod 46, and the other end of the connecting rod 46 is fixedly connected to a knocking head 47.

[0032] A tensioning mechanism is installed on the mounting frame 2, and the tensioning mechanism includes a limit groove 48 opened on the side wall of the mounting frame 2, a rectangular block 49 is slidably connected to the inner wall of the limit groove 48, and a tensioning wheel 50 is rotatably connected to the side wall of the rectangular block 49 through a pin shaft, a limit rod 51 is fixedly connected to the inner wall of the limit groove 48, and the side wall of the limit rod 51 is slidably connected to the rectangular block 49, and a fifth spring 52 is sleeved on the side wall of the limit rod 51, and two ends of the fifth spring 52 are respectively fixedly connected to the inner wall of the limit groove 48 and the rectangular block 49.

[0033] The knocking mechanism also includes two reciprocating screws 53 rotatably connected to the inner wall of the slide slot 44, and the two reciprocating screws 53 are fixedly connected (such as Figure 4 As shown), the side walls of the two reciprocating screws 53 are respectively threadedly connected to the two sliders 45, the side wall of the rotating shaft 18 is fixedly connected to the driving wheel 54, and the side wall of the U-shaped frame 33 is provided with a transverse groove 56, one end of one of the reciprocating screws 53 passes through the transverse groove 56 and is fixedly connected to the driven wheel 55, and the driving wheel 54, the driven wheel 55 and the tensioning wheel 50 are connected by a synchronous belt.

[0034] Furthermore, when the driven wheel 55 moves back and forth with the mounting block 34, the rectangular block 49 will also slide in the limiting groove 48 under the action of the fifth spring 52, so that the tensioning wheel 50 can always fit tightly with the synchronous belt, ensuring the tension of the synchronous belt and further ensuring the transmission of power.

[0035] Furthermore, during the rotation of the motor 21, the driving wheel 54 will be synchronously driven to rotate, and then the driven wheel 55 will be driven to rotate, and the reciprocating screw 53 will be driven to rotate, and then the slider 45 will slide back and forth on the inner wall of the slide groove 44, and then the two knocking heads 47 will be driven to continuously knock on the pole, thereby increasing the detection intensity and ensuring the firmness of the pole after welding.

[0036] In the present invention, the battery cover is placed on the conveyor belt 17 at equal intervals by an external manipulator, and then the pole is placed at the welding position on the battery cover, and then the motor 21 is started to drive the rotating shaft 18 to rotate, and then drive the fan gear 20 to rotate. When the fan gear 20 is engaged with the gear 19, it will drive the gear 19 to rotate, and then drive the conveyor roller 16 to rotate, so that the conveyor belt 17 moves to transport the battery cover. When the fan gear 20 rotates 90 degrees and separates from the gear 19, the battery cover just moves to the position directly below the laser welding device 3. As the rotating shaft 18 continues to rotate, the cam 30 begins to squeeze the T-bar 28, so that the T-bar 28 drives the circular plate 23 to slide downward in a sealed manner. At this time, the vertical groove 4 The air will be drawn into the first pump air chamber 231 through the second connecting pipe 27, at this time the sliding plug 5 will slide downward, and then the sliding plug 5 will drive the positioning ring 8 to move downward through the fixing rod 7, and at this time the air in the second pump air chamber 232 will be squeezed into the slide cylinder 10 through the first connecting pipe 24, pushing the conductive slide plate 11 to slide, driving the positioning rod 12 to move, so that the positioning plate 13 moves toward the center of the positioning ring 8, so that the positioning plate 13 can move downward and move closer to each other synchronously, when the positioning plate 13 moves to abut against the pole, it will push the pole to move and push the pole to the middle position, so that the pole can be repositioned to avoid the displacement of the pole caused by the battery cover during transportation, thereby causing welding offset.

[0037] When the positioning plate 13 is tightly against the side wall of the pole, the conductive slide plate 11 cannot move further. At this time, if air is continued to be pumped into the slide cylinder 10 and exceeds the threshold of the pressure relief valve installed on the inner wall of the exhaust hole 25, the exhaust hole 25 will open to exhaust and help release the pressure. After the cam 30 rotates 90 degrees, the T-bar 28 will move upward and reset under the action of the third spring 29, thereby driving the circular plate 23 to slide upward in a sealed manner, and then the air in the first pump air chamber 231 will enter the vertical groove 4 through the second connecting pipe 27, pushing the sliding plug 5 to move upward and reset, thereby the positioning ring 8 can be moved upward, and at the same time, the air in the slide cylinder 10 will be drawn back into the second pump air chamber 232 through the first connecting pipe 24, and then the conductive slide plate 11 will reset under the action of the second spring 14, so that the positioning plate 13 is reset, and at this time, the external air will enter the slide cylinder 10 through the one-way air inlet 26 to replenish the discharged air. With the reset of the positioning ring 8, the laser welding device 3 can weld the pole.

[0038] When the battery cover is being transported, if the pole falls over, the positioning plate 13 will not be able to abut against the side wall of the pole during positioning, and the conductive slide plate 11 will continue to slide on the inner wall of the slide tube 10 until the conductive slide plate 11 contacts the conductive ring 31. At this time, the circuit is connected, and the first electric push rod 32 will be energized and extended, driving the push plate 57 to move and push the battery cover on the conveyor belt 17 away. At this time, the pole falls over and welding cannot be performed, thereby avoiding welding operations and improving welding efficiency.

[0039] The welded pole will continue to move to the right along with the battery cover on the conveyor belt 17. At this time, the side wall of the pole will abut against the side wall of the detection plate 37, thereby pushing the detection plate 37 and the mounting block 34 to move to the right. When the mounting block 34 moves to abut against the delay switch 43, the mounting block 34 cannot move further. At this time, the pole will squeeze the detection plate 37, causing the detection plate 37 to rotate. After rotating to a certain angle, the pole can pass through the detection plate 37. At this time, the delay switch 43 is turned on, and the second electric push rod 40 is energized and retracted, driving the finished product box 42 to move to the side of the conveyor belt 17, and then the welded battery cover will fall into the finished product box 42.

[0040] If the pole is not welded firmly, when the pole pushes the mounting block 34 and the detection plate 37 to move, the pole may fall over and cannot continue to contact the detection plate 37. At this time, the mounting block 34 will be reset under the action of the fourth spring 35 and cannot contact the delay switch 43. The second electric push rod 40 cannot be energized, and the defective box 41 will be on the side of the conveyor belt 17, and the battery cover will fall into the defective box 41. Therefore, the firmness of the pole on the battery cover after welding can be tested, and qualified products can be collected separately from unqualified products to improve product quality.

[0041] And during the rotation of the motor 21, the driving wheel 54 will be driven to rotate synchronously, and then the driven wheel 55 will be driven to rotate, and the reciprocating screw 53 will be driven to rotate, and then the slider 45 will slide back and forth on the inner wall of the slide groove 44, and then the two knocking heads 47 will be driven to continuously knock on the pole, thereby increasing the detection intensity and ensuring the firmness of the pole after welding.

[0042] When the driven wheel 55 moves back and forth with the mounting block 34, the rectangular block 49 will also slide in the limiting groove 48 under the action of the fifth spring 52, so that the tensioning wheel 50 can always fit closely with the synchronous belt to ensure the tension of the synchronous belt and further ensure the transmission of power.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery cover plate pole welding device, characterized in that: include: A base (1), the upper end of the base (1) being fixedly connected to a mounting frame (2), and a laser welding device (3) being installed at the top of the mounting frame (2); A positioning mechanism, the positioning mechanism comprising a vertical groove (4) provided in the mounting frame (2), a sliding plug (5) being sealingly and slidably connected to the bottom of the vertical groove (4), a groove (6) being provided on the inner wall of the mounting frame (2), a fixing rod (7) being fixedly connected to the upper end of the sliding plug (5), the upper end of the fixing rod (7) extending into the groove (6) and being fixedly connected to a positioning ring (8), a first spring (9) being fixedly connected between the bottom of the vertical groove (4) and the sliding plug (5), a plurality of sliding cylinders (10) being fixedly connected to the inner wall of the positioning ring (8), a conductive slide plate (11) being sealingly and slidably connected to the inner wall of the sliding cylinder (10), a positioning rod (12) being fixedly connected to the side wall of the conductive slide plate (11), one end of the positioning rod (12) penetrating the side wall of the sliding cylinder (10) and being fixedly connected to a positioning plate (13), and a second spring (14) being fixedly connected between the inner wall of the sliding cylinder (10) and the conductive slide plate (11); A conveying mechanism and a driving mechanism are installed on the base (1).

2. A battery cover plate pole welding device according to claim 1, characterized in that: in: The conveying mechanism comprises four vertical plates (15) fixedly connected to the upper end of the base (1), wherein the side walls of two vertical plates (15) located on the same side close to each other are rotatably connected to conveying rollers (16), and the conveying rollers (16) are connected by conveyor belts (17).

3. A battery cover plate pole welding device according to claim 2, characterized in that: in: The driving mechanism comprises a motor (21) fixedly connected to the upper end of the base (1) via a bracket, the side wall of the vertical plate (15) is rotatably connected to a rotating shaft (18), the side wall of the rotating shaft (18) is fixedly connected to a sector gear (20), one end of one of the conveying rollers (16) passes through the side wall of the vertical plate (15) and is fixedly connected to a gear (19), and the output end of the motor (21) is fixedly connected to the rotating shaft (18).

4. A battery cover plate pole welding device according to claim 3, characterized in that: in: The positioning mechanism further comprises a vertical cylinder (22) fixedly connected to the upper end of the base (1); the inner wall of the vertical cylinder (22) is sealed and slidably connected with a circular plate (23); the circular plate (23) divides the interior of the vertical cylinder (22) into two parts: a first pump air cavity (231) and a second pump air cavity (232); the second pump air cavity (232) is connected to the slide cylinder (10) via a first connecting pipe (24); an exhaust hole (25) and a one-way air inlet hole (26) are provided on the inner wall of the exhaust hole (25); and a The pressure relief valve is characterized in that the first pump air chamber (231) is connected to the vertical groove (4) through a second connecting pipe (27); the upper end of the circular plate (23) is fixedly connected to a T-shaped rod (28); the side wall of the rotating shaft (18) is fixedly connected to a cam (30); the upper end of the T-shaped rod (28) passes through the upper end of the vertical cylinder (22) and slides against the cam (30); the side wall of the T-shaped rod (28) is sleeved with a third spring (29); and the two ends of the third spring (29) are respectively fixedly connected to the upper end of the vertical cylinder (22) and the inner top of the T-shaped rod (28).

5. A battery cover plate pole welding device according to claim 1, characterized in that: in: A conductive ring (31) is fixedly embedded in the inner wall of the slide cylinder (10), a first electric push rod (32) is fixedly connected to the inner wall of the mounting frame (2), a push plate (57) is fixedly connected to the movable end of the first electric push rod (32), and the conductive slide plate (11), the conductive ring (31), the first electric push rod (32) and an external power source are electrically connected via a wire.

6. A battery cover plate pole welding device according to claim 3, characterized in that: in: A detection mechanism is mounted on the base (1), the detection mechanism comprising a U-shaped frame (33) fixedly connected to the upper end of the base (1), a mounting block (34) slidably connected to the top of the U-shaped frame (33), a fourth spring (35) being fixedly connected between the mounting block (34) and the inner wall of the U-shaped frame (33), a rotating rod (36) being rotatably connected to the inner wall of the mounting block (34), a detection plate (37) being fixedly connected to the side wall of the rotating rod (36), two torsion springs (38) being sleeved on the side wall of the rotating rod (36), the two ends of the torsion spring (38) being fixedly connected to the side wall of the detection plate (37) and the inner wall of the mounting block (34), respectively.

7. A battery cover plate pole welding device according to claim 6, characterized in that: in: The detection mechanism further comprises a rectangular plate (39) fixedly connected to the upper end of the base (1); a second electric push rod (40) is fixedly connected to the side wall of the rectangular plate (39); a defective product box (41) is fixedly connected to the movable end of the second electric push rod (40); a finished product box (42) is fixedly connected to the side wall of the defective product box (41); a delay switch (43) is fixedly connected to the inner wall of the U-shaped frame (33); and the second electric push rod (40), the delay switch (43) and an external power source are electrically connected via a wire.

8. A battery cover plate pole welding device according to claim 6, characterized in that: in: A knocking mechanism is mounted on the mounting block (34), the knocking mechanism comprising a slide groove (44) provided on a side wall of the mounting block (34), two sliders (45) being slidably connected to the inner wall of the slide groove (44), the side walls of the two sliders (45) being fixedly connected to a connecting rod (46), the other end of the connecting rod (46) being fixedly connected to a knocking head (47).

9. A battery cover plate pole welding device according to claim 1, characterized in that: in: A tensioning mechanism is installed on the mounting frame (2), and the tensioning mechanism comprises a limit groove (48) provided on the side wall of the mounting frame (2); a rectangular block (49) is slidably connected to the inner wall of the limit groove (48); a tensioning wheel (50) is rotatably connected to the side wall of the rectangular block (49) via a pin shaft; a limit rod (51) is fixedly connected to the inner wall of the limit groove (48); the side wall of the limit rod (51) is slidably connected to the rectangular block (49); a fifth spring (52) is sleeved on the side wall of the limit rod (51); and two ends of the fifth spring (52) are respectively fixedly connected to the inner wall of the limit groove (48) and the rectangular block (49).

10. A battery cover plate pole welding device according to claim 8, characterized in that: in: The knocking mechanism further comprises two reciprocating screws (53) rotatably connected to the inner wall of the slide groove (44), the two reciprocating screws (53) are fixedly connected to each other, and the side walls of the two reciprocating screws (53) are respectively threadedly connected to the two sliders (45), the side wall of the rotating shaft (18) is fixedly connected to a driving wheel (54), the side wall of the U-shaped frame (33) is provided with a transverse groove (56), one end of one of the reciprocating screws (53) passes through the transverse groove (56) and is fixedly connected to a driven wheel (55), and the driving wheel (54), the driven wheel (55) and the tensioning wheel (50) are connected by a synchronous belt.

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