Welding clamping device and turret welding equipment

Abstract

The present invention belongs to the field of battery processing technology, and specifically provides a welding clamping device and a turret welding device. It aims to solve the problem of low welding efficiency between the collector plate and the winding core. To this end, the welding clamping device of the present invention includes a fixing, a turret mechanism, a first cam, a second cam and a plurality of welding clamping mechanisms; the turret mechanism is installed on the fixing and can rotate around the vertical axis; the first cam, the second cam and the turret mechanism are coaxially arranged; a plurality of welding clamping mechanisms are installed on the turret mechanism and are evenly distributed circumferentially, and the top and bottom ends of the welding clamping mechanisms are respectively abutted against the first cam and the second cam; the turret mechanism drives the welding clamping mechanism to rotate synchronously when rotating, and the welding clamping mechanism can press the collector plate on the end face of the winding core or release the clamping state during the rotation process. The welding clamping device of the present invention can cooperate with a laser welding device to weld the winding core and the collector plate during the rotation of the winding core, thereby improving the welding efficiency of the collector plate.

Description

Technical Field

[0001] The invention belongs to the technical field of battery processing, and specifically provides a welding clamping device and a turret welding equipment. Background Art

[0002] The cell is the most important component of the battery. The cell can only be assembled into a battery after being processed through mechanical / ultrasonic flattening, encapsulation, shelling, collector plate welding and other processes. Therefore, the performance of the cell has a direct impact on the performance of the battery, and the cell preparation process is very important.

[0003] At present, there are many different solutions for the current collector welding of cylindrical power batteries. The most commonly used method is to fix the current collector and the core on the pallet fixture, and transport the battery cells and the current collector to the welding mechanism through conveyor lines, double-speed chains and other transport actuators. After the transport actuator stops transporting, the current collector and the battery cells are welded. After welding, the transport actuator removes the welded current collector and battery cells. Since welding operations cannot be performed during the process of the transport actuator driving the battery cells and the current collector to enter and leave the workstation, and the time used for the transport process is much longer than the welding time, the laser utilization rate is low, the production efficiency is low, and the cost of the battery is correspondingly increased.

[0004] Therefore, this field needs a new technical solution to solve the above technical problems. Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem of low welding efficiency between the collector plate and the winding core in the existing cylindrical battery production process.

[0006] In a first aspect, the present invention provides a welding clamping device, which includes a fixing member, a turret mechanism, a first cam, a second cam and a plurality of welding clamping mechanisms; the first cam and the second cam are mounted on the fixing member and fixed relative to the fixing member, and the first cam and the second cam are spaced apart in the vertical direction; the turret mechanism is mounted on the fixing member and can rotate relative to the fixing member around a vertical axis; the first cam, the second cam and the turret mechanism are coaxially arranged; a plurality of the welding clamping mechanisms are mounted on the turret mechanism and are evenly distributed circumferentially around the central axis of the turret mechanism, and the top and The bottom ends are respectively abutted against the first cam and the second cam; the turret mechanism drives the welding clamping mechanism to rotate synchronously when it rotates, and during the rotation of the welding clamping mechanism, the top and bottom ends thereof rotate along the first cam and the second cam respectively, and under the limitation of the first cam and the second cam, the top and bottom ends of the welding clamping mechanism are relatively moved and the collecting plate is pressed against the end face of the winding core, or the top and bottom ends of the welding clamping mechanism are moved away from each other to release the clamping state; and the turret mechanism can guide the welding clamping mechanism during the movement of the welding clamping mechanism so that the welding clamping mechanism moves in the vertical direction.

[0007] In the preferred technical scheme of the above-mentioned welding clamping device, the top end of the welding clamping mechanism abuts against the bottom surface of the first cam, and the first cam includes a first horizontal portion, a first transition portion, a second horizontal portion and a second transition portion, and the first horizontal portion, the first transition portion, the second horizontal portion and the second transition portion are connected end to end in sequence and are annular, and the bottom surface of the first horizontal portion is lower than the bottom surface of the second horizontal portion; the bottom end of the welding clamping mechanism abuts against the top surface of the second cam, and the second cam includes a third horizontal portion, a third transition portion, a fourth horizontal portion and a fourth transition portion, and the third horizontal portion, the third transition portion, the fourth horizontal portion and the fourth transition portion are connected end to end in sequence and are annular, and the top surface of the third horizontal portion is higher than the top surface of the fourth horizontal portion; wherein, in the circumferential direction, the third horizontal portion, the third transition portion, the fourth horizontal portion and the fourth transition portion are respectively located on the outside of the first horizontal portion, the first transition portion, the second horizontal portion and the second transition portion.

[0008] In a preferred technical solution of the above-mentioned welding clamping device, along the rotation direction of the turret mechanism, the welding clamping mechanism successively passes through the starting end of the third horizontal part and the starting end of the first horizontal part during the rotation process.

[0009] In a preferred technical solution of the above-mentioned welding clamping device, the angle between the starting end and the ending end of the first horizontal portion and the angle between the starting end and the ending end of the third horizontal portion are both 180°.

[0010] In a preferred technical solution of the above-mentioned welding clamping device, the angle between the starting end of the third horizontal portion and the starting end of the first horizontal portion is 10°.

[0011] In the preferred technical scheme of the above-mentioned welding clamping device, the welding clamping mechanism comprises a collecting plate clamping assembly, a winding core clamping assembly and a collecting plate clamping piece, the collecting plate clamping piece is installed on the turret mechanism and is fixed relatively to the turret mechanism, and the collecting plate clamping piece can clamp the collecting plate; the collecting plate clamping assembly and the winding core clamping assembly are both connected to the turret mechanism and can respectively move in the vertical direction relative to the turret mechanism, the collecting plate clamping assembly and the winding core clamping assembly are respectively located above and below the collecting plate clamping piece, the collecting plate clamping assembly abuts against the bottom surface of the first cam, the winding core clamping assembly abuts against the top surface of the second cam, the winding core clamping assembly can carry the winding core, and during the rotation of the welding clamping mechanism, the collecting plate clamping assembly can move in the vertical direction under the limit of the first cam, and the winding core clamping assembly can drive the winding core to move in the vertical direction under the limit of the second cam.

[0012] In the preferred technical scheme of the above-mentioned welding clamping device, the turret mechanism includes an upper connecting ring, a first limiting plate, a second limiting plate, a third limiting plate, a lower connecting plate, a driving member and multiple groups of guide columns, the upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate are sequentially spaced from top to bottom and are all coaxially arranged with the first cam and the second cam, the guide column vertically penetrates the first limiting plate, the second limiting plate and the third limiting plate and its two ends are respectively connected to the upper connecting ring and the lower connecting plate, multiple groups of guide columns are evenly distributed circumferentially, the first limiting plate, the second limiting plate and the third limiting plate are connected to the lower connecting plate through a connecting member; the first cam is located on the inner side of the upper connecting ring, and the second cam is located on the outer side of the lower connecting plate; the driving member It is connected to the fixing part and can drive the upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate to rotate; the first limiting plate is evenly provided with a plurality of first clamping grooves along its circumference for clamping the collecting plate clamping member, the second limiting plate is evenly provided with a plurality of second clamping grooves along its circumference, and the third limiting plate is evenly provided with a plurality of through holes along its circumference for accommodating the core clamping assembly, each of the first clamping grooves is opposite to a second clamping groove and a through hole; each of the collecting plate clamping assemblies is connected to a group of guide columns and can move along the guide columns, and the collecting plate clamping assembly is located above the first limiting plate; each of the core clamping assemblies is connected to a group of guide columns and can move along the guide columns, and the core clamping assembly is located below the first limiting plate.

[0013] In a preferred technical solution of the above-mentioned welding clamping device, the number of guide columns in each group of guide columns is at least two.

[0014] In the preferred technical solution of the above-mentioned welding clamping device, the turret mechanism also includes a cylindrical limit cover, which is arranged on the outer sides of the first limit plate, the second limit plate and the third limit plate, and the limit cover is connected to the side wall of the third limit plate, the collecting plate clamping part abuts against the inner wall of the limit cover, and the core support cup carrying the core located in the second slot abuts against the limit cover.

[0015] In the preferred technical solution of the above-mentioned welding clamping device, the connecting part includes a plurality of first connecting columns, a plurality of second connecting columns and a plurality of third connecting columns, the first limiting plate is connected to the lower connecting plate through the plurality of the first connecting columns, the first connecting column passes through the second limiting plate and the third limiting plate, and the plurality of the first connecting columns are evenly distributed circumferentially; the second limiting plate is connected to the third limiting plate through the plurality of the second connecting columns, and the plurality of the second connecting columns are evenly distributed circumferentially; the third limiting plate is connected to the lower connecting plate through the plurality of the third connecting columns, and the plurality of the third connecting columns are evenly distributed circumferentially.

[0016] In the preferred technical scheme of the above-mentioned welding clamping device, the collecting plate clamping part includes a clamping ring column and a plurality of clamping columns located in the clamping ring column, and an annular docking groove is provided on the outer wall of the clamping ring column. When the clamping ring column is inserted into the first groove, the first limiting plate is inserted into the docking groove, and the groove thickness of the docking groove is the same as the thickness of the first limiting plate. A first mounting hole is provided on the inner wall of the clamping ring column along its radial direction. The number of the first mounting holes is multiple and evenly distributed circumferentially. A reset spring is installed in the first mounting hole. The clamping column is located in the first mounting hole and connected to the reset spring. The clamping column extends toward the center along the radial direction of the clamping ring column and its end protrudes out of the first mounting hole.

[0017] In the preferred technical scheme of the above-mentioned welding clamping device, the collecting disc clamping assembly includes a pressure plate, an adjusting plate, a pressure block and a first power spring, the pressure plate, the adjusting plate and the pressure block are connected in sequence from top to bottom, the pressure plate is sleeved on the guide column and can move along the guide column, the first power spring is sleeved on the guide column and passes through the first limiting plate, the two ends of the first power spring respectively abut against the bottom surface of the pressure plate and the top surface of the second limiting plate; the pressure plate abuts against the bottom surface of the first cam through the first follower wheel; a downwardly extending welding pressure head is provided on the bottom wall of the pressure plate, and the welding pressure head can abut against the collecting disc located in the collecting disc clamping member and press the collecting disc to move downward when moving vertically downward; a welding hole is provided on the collecting disc clamping assembly, and the welding hole passes through the pressure plate, the adjusting plate, the pressure block and the welding pressure head.

[0018] In the preferred technical solution of the above-mentioned welding clamping device, an air inlet connector is provided on the pressing plate, a first gas channel connected to the air inlet connector is provided in the pressing plate, a second gas channel is provided on the pressing block, the first gas channel passes through the adjusting plate and is connected to the second gas channel, a plurality of third gas channels are provided in the welding pressing head, the plurality of third gas channels are evenly distributed circumferentially, one end of the third gas channel is connected to the welding hole, and the other end of the third gas channel is connected to the second gas channel.

[0019] In the preferred technical solution of the above-mentioned welding clamping device, the welding clamping device also includes a gas-electric slip ring, which is located on the inner side of the first cam, the fixed part of the gas-electric slip ring is connected to the fixing part, the rotating part of the gas-electric slip ring is connected to the first limiting disk and can rotate relative to the fixed part, and the air outlet end of the rotating part is located between the bottom surface of the first cam and the top surface of the first limiting disk, the multiple air outlet ends of the rotating part are respectively connected to the multiple air inlet joints through connecting pipes, and the multiple air inlet ends of the fixed part are all connected to a protective air source.

[0020] In the preferred technical solution of the above-mentioned welding clamping device, the core clamping assembly includes a support member, a bearing member and a second power spring, the bearing member is installed on the support member, the bearing member can fix the bearing core, the support member is sleeved on the guide column and can move along the guide column, the second power spring is sleeved on the guide column and passes through the third limiting disk, the two ends of the second power spring are respectively abutted against the top surface of the support member and the bottom surface of the second limiting disk, and the support member is abutted against the top surface of the second cam through the second follower wheel.

[0021] In the preferred technical solution of the above-mentioned welding clamping device, the core clamping assembly also includes a buffer spring, a second mounting hole is provided on the top surface of the support member, one end of the buffer spring is installed in the bearing member, and the other end of the buffer spring extends out of the bearing member and is installed in the second mounting hole, the bottom end of the bearing member is located in the second mounting hole, and the bearing member can move in a vertical direction relative to the support member.

[0022] In the preferred technical solution of the above welding clamping device, a first guiding structure is provided at the top end of the supporting member.

[0023] In the preferred technical solution of the above-mentioned welding clamping device, the core clamping assembly further includes two limit plates, which are mounted on the support member and are respectively located on both sides of the bearing member.

[0024] In the preferred technical solution of the above-mentioned welding clamping device, a second guide structure is provided at the top end of the limiting plate.

[0025] In the preferred technical solution of the above-mentioned welding clamping device, the welding clamping device also includes a detector, and the number of the detectors is multiple. The multiple detectors are installed on the second limiting plate and each second card slot corresponds to one detector. The detector can detect whether there is a winding core in the second card slot corresponding to it.

[0026] In the preferred technical solution of the above-mentioned welding clamping device, the number of the welding clamping mechanisms is 18.

[0027] In a second aspect, the present invention provides a turret welding device, which includes the above-mentioned welding clamping device.

[0028] When the above technical scheme is adopted, the welding clamping device of the present invention includes a fixing part, a turret mechanism, a first cam, a second cam and multiple welding clamping mechanisms. The multiple welding clamping mechanisms are installed on the turret mechanism and are evenly distributed circumferentially around the central axis of the turret mechanism. The top and bottom ends of the welding clamping mechanism are respectively abutted against the first cam and the second cam. When the turret mechanism drives the welding clamping mechanism to rotate, the top and bottom ends of the welding clamping mechanism rotate along the first cam and the second cam respectively, and under the limitation of the first cam and the second cam, the current collecting disk can be pressed on the end face of the winding core and the clamping state can be released, so that the welding clamping mechanism can cycle between the clamping state and the released clamping state in sequence during the rotation of the turret mechanism. Therefore, the welding clamping device of the present invention can be combined with a laser welding device, and the current collecting disk and the winding core are welded while the welding clamping mechanism maintains the clamping state and rotates, so as to realize the welding of the current collecting disk and the winding core in the process of transferring the winding core, thereby improving the welding efficiency of the current collecting disk and improving the production efficiency of the cylindrical battery, thereby reducing the cost of the cylindrical battery. In addition, the turret mechanism in the present invention can guide the welding clamping mechanism during the movement process of the welding clamping mechanism to clamp the collecting disk and the winding core and release the clamping state, so that the welding clamping mechanism moves in the vertical direction, and can keep the collecting disk and the winding core coaxially arranged, thereby improving the welding quality.

[0029] Furthermore, the top end of the welding clamping mechanism is abutted against the bottom surface of the first cam, and the first cam includes a first horizontal portion, a first transition portion, a second horizontal portion, and a second transition portion, which are connected end to end and are in a ring shape, and the bottom surface of the first horizontal portion is lower than the bottom surface of the second horizontal portion, so that the bottom end of the welding clamping mechanism is abutted against the top surface of the second cam, and the second cam includes a third horizontal portion, a third transition portion, a fourth horizontal portion, and a fourth transition portion, which are connected end to end and are in a ring shape, and the top surface of the third horizontal portion is higher than the top surface of the fourth horizontal portion. Through such an arrangement, the concave and convex surface of the first cam is arranged downward, and the concave and convex surface of the second cam is arranged upward, which can facilitate the assembly of the welding clamping mechanism with the first cam and the second cam, reduce the complexity of the welding clamping mechanism, and reduce the volume of the entire welding clamping device.

[0030] Furthermore, along the rotation direction of the turret mechanism, the welding clamping mechanism passes through the starting end of the third horizontal part and the starting end of the first horizontal part in sequence during the rotation. Such an arrangement enables the welding clamping mechanism to rotate with the turret mechanism. Its bottom end first moves upward under the limit of the second cam to move the winding core to the clamping height of the clamping state. Thereafter, its top end moves downward under the limit of the first cam and presses the collecting plate down to the end face of the winding core. That is, the collecting plate clamping assembly drives the collecting plate to the clamping height of the clamping state, thereby effectively clamping the collecting plate on the winding core, avoiding the collecting plate from falling off during the pressing process, and effectively improving the clamping efficiency.

[0031] Furthermore, setting the angle between the starting end and the ending end of the first horizontal portion and the angle between the starting end and the ending end of the third horizontal portion to 180° enables the collecting plate and the winding core to remain in a compressed state for a sufficiently long time to facilitate welding operations.

[0032] Furthermore, the angle between the starting end of the third horizontal portion and the starting end of the first horizontal portion is 10°, which can not only enable the core clamping assembly to reach the height position of the clamping state first, but also enable the collecting plate and the core to remain in the clamping state for a sufficiently long time so as to weld the collecting plate and the core.

[0033] Furthermore, the welding clamping mechanism includes a collecting plate clamping assembly, a core clamping assembly and a collecting plate clamping piece, which is installed on the turret mechanism and fixed relatively to the turret mechanism, the collecting plate clamping assembly and the core clamping assembly are respectively located above and below the collecting plate clamping piece, and the collecting plate clamping assembly and the core clamping assembly can move in the vertical direction relative to the turret mechanism, so that the collecting plate can be pressed onto the core, and the clamping state can be released. Such a setting can determine the height of the welding plane (i.e., the height of the plane where the collecting plate is located after the collecting plate and the core are clamped) based on the horizontal plane where the collecting plate clamping piece is located, which facilitates the assembly of the collecting plate clamping assembly and the core clamping assembly, while also ensuring welding accuracy and thus product quality.

[0034] Furthermore, the turret mechanism is configured as an upper connecting ring, a first limiting plate, a second limiting plate, a third limiting plate, a lower connecting plate, a driving member and a plurality of guide columns, and the current collecting plate clamping assembly and the winding core clamping assembly are guided simultaneously by the same group of guide columns, so that the current collecting plate and the winding core are always arranged coaxially, which can ensure the welding accuracy, and also facilitate the positioning and installation of the current collecting plate clamping assembly and the winding core clamping assembly, thereby reducing the assembly error. In addition, with this configuration, the turret mechanism can drive the welding clamping mechanism, the current collecting plate and the winding core to rotate stably when rotating, thereby preventing the winding core and the current collecting plate from shifting in the horizontal direction relative to the turret mechanism during the rotation process.

[0035] Furthermore, the number of guide columns in each group of guide columns is at least two, and the two guide columns can limit the horizontal positions of the collecting plate clamping assembly and the winding core clamping assembly to prevent the collecting plate clamping assembly and the winding core clamping assembly from shifting in the horizontal direction relative to the turret mechanism, thereby improving the docking accuracy of the collecting plate clamping assembly and the winding core clamping assembly and ensuring the welding quality.

[0036] Furthermore, the connecting member includes a first connecting column, a second connecting column and a third connecting column. The first connecting column passes through the second limiting plate and the third limiting plate and connects the first limiting plate with the lower connecting plate. The second connecting column connects the second limiting plate and the third limiting plate. The third connecting column connects the lower connecting plate with the third limiting plate. Such an arrangement can improve the connection stability between the upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate.

[0037] Furthermore, the collecting plate clamping member includes a clamping ring column and a plurality of clamping columns located in the clamping ring column. An annular docking groove is provided on the outer wall of the clamping ring column. The clamping ring column is inserted into the first slot and the first limiting plate is inserted into the docking slot. The groove thickness of the docking slot is the same as the thickness of the first limiting plate, thereby limiting the movement of the clamping ring column relative to the first limiting plate in the vertical direction. The clamping column is installed in the first mounting hole through a reset spring, so that the clamping column can move in the first mounting hole in the radial direction. Such a setting method has a simple structure and is convenient for clamping the collecting plate and for the collecting plate clamping assembly to press the collecting plate downward.

[0038] Furthermore, the collecting plate clamping assembly includes a pressure plate, an adjustment plate, a pressure block and a first power spring. The overall structure is simple and convenient for production, manufacturing and assembly. In addition, such a setting method can ensure the assembly accuracy of the collecting plate clamping assembly by controlling the thickness of the adjustment plate, thereby ensuring that the collecting plates of each set of welding clamping mechanisms are at the same height in the clamped state, thereby keeping the welding planes of each collecting plate at the same height, thereby ensuring the welding effect.

[0039] Furthermore, a gas path is provided on the collecting plate pressing assembly, so that a protective gas can be introduced into the welding hole, thereby improving the welding efficiency and ensuring the welding quality.

[0040] Furthermore, by setting up a gas-electric slip ring, the wiring harness and the gas path are integrated and distributed, and the gas outlet end of the rotating part of the gas-electric slip ring is located between the bottom surface of the first cam and the top surface of the first limit plate. The connecting pipe connecting the gas outlet end and the gas inlet joint does not affect the movement of the welding clamping mechanism, thereby reducing the difficulty of gas line layout and facilitating use.

[0041] Furthermore, the core clamping assembly includes a support member, a bearing member and a second power spring, and has a simple structure, which is convenient for production, manufacturing and assembly.

[0042] Furthermore, a buffer spring is arranged in the core clamping assembly, so that the bearing member can move in the vertical direction relative to the supporting member and can adjust the height of the core, thereby ensuring that the welding clamping mechanism can always clamp the collecting disk and the core when in the clamping state. In addition, the buffer spring can also compensate for the error in the vertical direction caused by the vibration generated by the rotation of the turret mechanism, the processing error of the core clamping assembly and the assembly error, so that the core clamping assembly can perfectly cooperate with the collecting disk clamping assembly to clamp the collecting disk and the core, which is more convenient to use and has a good clamping effect.

[0043] Furthermore, two limiting plates are provided to limit the winding core, thereby preventing the winding core from moving in the horizontal direction relative to the turret mechanism due to centrifugal force during the rotation of the turret mechanism.

[0044] Furthermore, a detector is correspondingly arranged for each second card slot, and the detector can detect whether there is a winding core in the second card slot, so as to facilitate the control of the operation of the laser welding device.

[0045] Furthermore, the number of welding clamping mechanisms is set to 18, which is a moderate number to meet the requirements of loading, unloading and welding rhythm, with high welding efficiency and relatively small size of the welding clamping device.

[0046] In addition, the turret welding equipment of the present invention includes the above-mentioned welding clamping device, and thus has the beneficial effects of the above-mentioned welding clamping device. Therefore, compared with the welding equipment in the prior art, the turret welding equipment of the present invention can realize the welding of the collecting plate and the winding core during the winding core conveying process, thereby effectively improving the welding efficiency of the collecting plate, avoiding equipment shutdown, and improving the production efficiency of cylindrical batteries, thereby reducing the cost of cylindrical batteries.

[0047] Solution 1. A welding clamping device, characterized in that it includes a fixing member, a turret mechanism, a first cam, a second cam and a plurality of welding clamping mechanisms;

[0048] The first cam and the second cam are mounted on the fixing member and fixed relative to the fixing member, and the first cam and the second cam are spaced apart in the vertical direction;

[0049] The turret mechanism is mounted on the fixing member and can rotate relative to the fixing member around a vertical axis; the first cam and the second cam are coaxially arranged with the turret mechanism;

[0050] A plurality of the welding clamping mechanisms are installed on the turret mechanism and are evenly distributed circumferentially around the central axis of the turret mechanism, and the top and bottom ends of the welding clamping mechanisms are respectively in contact with the first cam and the second cam;

[0051] When the turret mechanism rotates, it drives the welding clamping mechanism to rotate synchronously. During the rotation of the welding clamping mechanism, the top and bottom ends of the welding clamping mechanism rotate along the first cam and the second cam respectively, and under the limitation of the first cam and the second cam, the top and bottom ends of the welding clamping mechanism move relatively and press the collecting plate against the end face of the winding core, or the top and bottom ends of the welding clamping mechanism move away from each other to release the clamping state; and the turret mechanism can guide the welding clamping mechanism during the movement of the welding clamping mechanism so that the welding clamping mechanism moves in the vertical direction.

[0052] Solution 2. The welding clamping device according to Solution 1 is characterized in that the top end of the welding clamping mechanism abuts against the bottom surface of the first cam, the first cam comprises a first horizontal portion, a first transition portion, a second horizontal portion, and a second transition portion, the first horizontal portion, the first transition portion, the second horizontal portion, and the second transition portion are sequentially connected end to end and are annular, and the bottom surface of the first horizontal portion is lower than the bottom surface of the second horizontal portion;

[0053] The bottom end of the welding clamping mechanism abuts against the top surface of the second cam, the second cam comprises a third horizontal portion, a third transition portion, a fourth horizontal portion and a fourth transition portion, the third horizontal portion, the third transition portion, the fourth horizontal portion and the fourth transition portion are sequentially connected end to end and are annular, and the top surface of the third horizontal portion is higher than the top surface of the fourth horizontal portion;

[0054] Wherein, in the circumferential direction, the third horizontal portion, the third transition portion, the fourth horizontal portion and the fourth transition portion are respectively located on the outsides of the first horizontal portion, the first transition portion, the second horizontal portion and the second transition portion.

[0055] Solution 3. The welding clamping device according to Solution 2 is characterized in that, along the rotation direction of the turret mechanism, the welding clamping mechanism passes through the starting end of the third horizontal part and the starting end of the first horizontal part in sequence during the rotation process.

[0056] Solution 4. The welding clamping device according to Solution 1 is characterized in that the welding clamping mechanism comprises a collector plate clamping assembly, a winding core clamping assembly and a collector plate clamping member, the collector plate clamping member is mounted on the turret mechanism and fixed relative to the turret mechanism, and the collector plate clamping member can clamp the collector plate;

[0057] The collecting disk pressing assembly and the winding core pressing assembly are both connected to the turret mechanism and can move in the vertical direction relative to the turret mechanism respectively. The collecting disk pressing assembly and the winding core pressing assembly are respectively located above and below the collecting disk clamping member. The collecting disk pressing assembly abuts against the bottom surface of the first cam, and the winding core pressing assembly abuts against the top surface of the second cam. The winding core pressing assembly can carry the winding core.

[0058] During the rotation of the welding clamping mechanism, the collecting plate clamping assembly can move in the vertical direction under the limitation of the first cam, and the winding core clamping assembly can drive the winding core to move in the vertical direction under the limitation of the second cam.

[0059] Solution 5. The welding clamping device according to Solution 4 is characterized in that the turret mechanism includes an upper connecting ring, a first limiting plate, a second limiting plate, a third limiting plate, a lower connecting plate, a driving member and a plurality of guide columns,

[0060] The upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate are sequentially spaced from top to bottom and are coaxially arranged with the first cam and the second cam. The guide column vertically penetrates the first limiting plate, the second limiting plate and the third limiting plate and its two ends are respectively connected to the upper connecting ring and the lower connecting plate. Multiple groups of guide columns are evenly distributed in the circumference. The first limiting plate, the second limiting plate and the third limiting plate are connected to the lower connecting plate through a connecting piece. The first cam is located on the inner side of the upper connecting ring, and the second cam is located on the outer side of the lower connecting plate.

[0061] The driving member is connected to the fixing member and can drive the upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate to rotate; the first limiting plate is evenly provided with a plurality of first clamping grooves along its circumference for clamping the collecting plate clamping member, the second limiting plate is evenly provided with a plurality of second clamping grooves along its circumference, and the third limiting plate is evenly provided with a plurality of through holes along its circumference for accommodating the core clamping assembly, each of the first clamping grooves is opposite to a second clamping groove and a through hole; each of the collecting plate clamping assemblies is connected to a group of guide columns and can move along the guide columns, and the collecting plate clamping assembly is located above the first limiting plate; each of the core clamping assemblies is connected to a group of guide columns and can move along the guide columns, and the core clamping assembly is located below the first limiting plate.

[0062] Solution 6. The welding clamping device according to Solution 5 is characterized in that the connecting member includes a plurality of first connecting columns, a plurality of second connecting columns and a plurality of third connecting columns, the first limiting plate is connected to the lower connecting plate through the plurality of the first connecting columns, the first connecting column passes through the second limiting plate and the third limiting plate, and the plurality of the first connecting columns are evenly distributed circumferentially;

[0063] The second limiting plate is connected to the third limiting plate through a plurality of the second connecting pillars, and the plurality of the second connecting pillars are evenly distributed in the circumferential direction;

[0064] The third limiting plate is connected to the lower connecting plate through a plurality of third connecting pillars, and the plurality of third connecting pillars are evenly distributed in the circumferential direction.

[0065] Solution 7. The welding clamping device according to Solution 5 is characterized in that the collecting plate clamping part includes a clamping ring column and a plurality of clamping columns located in the clamping ring column, and an annular docking groove is provided on the outer wall of the clamping ring column. When the clamping ring column is inserted into the first groove, the first limiting plate is inserted into the docking groove, and the groove thickness of the docking groove is the same as the thickness of the first limiting plate. A first mounting hole is provided on the inner wall of the clamping ring column along its radial direction. The number of the first mounting holes is multiple and evenly distributed circumferentially. A reset spring is installed in the first mounting hole. The clamping column is located in the first mounting hole and connected to the reset spring. The clamping column extends toward the center along the radial direction of the clamping ring column and its end protrudes out of the first mounting hole.

[0066] Scheme 8. The welding clamping device according to Scheme 5 is characterized in that the collecting disc clamping assembly includes a pressure plate, an adjusting plate, a pressure block and a first power spring, the pressure plate, the adjusting plate and the pressure block are connected in sequence from top to bottom, the pressure plate is sleeved on the guide column and can move along the guide column, the first power spring is sleeved on the guide column and passes through the first limiting plate, the two ends of the first power spring respectively abut against the bottom surface of the pressure plate and the top surface of the second limiting plate; the pressure plate abuts against the bottom surface of the first cam through the first follower wheel; a downwardly extending welding pressure head is provided on the bottom wall of the pressure plate, and the welding pressure head can abut against the collecting disc located in the collecting disc clamping member and press the collecting disc to move downward when moving vertically downward; a welding hole is provided on the collecting disc clamping assembly, and the welding hole passes through the pressure plate, the adjusting plate, the pressure block and the welding pressure head.

[0067] Solution 9. The welding clamping device according to Solution 8 is characterized in that an air inlet connector is provided on the pressing plate, a first gas channel connected to the air inlet connector is provided in the pressing plate, a second gas channel is provided on the pressing block, the first gas channel passes through the adjusting plate and is connected to the second gas channel, a plurality of third gas channels are provided in the welding pressing head, the plurality of third gas channels are evenly distributed circumferentially, one end of the third gas channel is connected to the welding hole, and the other end of the third gas channel is connected to the second gas channel.

[0068] Solution 10. The welding clamping device according to Solution 9 is characterized in that it also includes a gas-electric slip ring, which is located on the inner side of the first cam, the fixed part of the gas-electric slip ring is connected to the fixing part, the rotating part of the gas-electric slip ring is connected to the first limiting disk and can rotate relative to the fixed part, and the air outlet end of the rotating part is located between the bottom surface of the first cam and the top surface of the first limiting disk, the multiple air outlet ends of the rotating part are respectively connected to the multiple air inlet joints through connecting pipes, and the multiple air inlet ends of the fixed part are all connected to a protective air source.

[0069] Solution 11. The welding clamping device according to Solution 5 is characterized in that the core clamping assembly includes a support member, a bearing member and a second power spring, the bearing member is installed on the support member, the bearing member can fix the bearing core, the support member is sleeved on the guide column and can move along the guide column, the second power spring is sleeved on the guide column and passes through the third limiting disk, the two ends of the second power spring are respectively abutted against the top surface of the support member and the bottom surface of the second limiting disk, and the support member is abutted against the top surface of the second cam through the second follower wheel.

[0070] Solution 12. The welding clamping device according to Solution 11 is characterized in that the core clamping assembly also includes a buffer spring, a second mounting hole is provided on the top surface of the support member, one end of the buffer spring is installed in the bearing member, and the other end of the buffer spring extends out of the bearing member and is installed in the second mounting hole, the bottom end of the bearing member is located in the second mounting hole, and the bearing member can move in a vertical direction relative to the support member.

[0071] Solution 13. The welding clamping device according to Solution 11 is characterized in that the core clamping assembly also includes two limit plates, and the two limit plates are installed on the support member and are respectively located on both sides of the bearing member.

[0072] Solution 14. The welding clamping device according to Solution 5 is characterized in that it also includes a detector, wherein the number of the detectors is multiple, the multiple detectors are installed on the second limiting plate and each second card slot corresponds to one detector, and the detector can detect whether there is a winding core in the second card slot corresponding to it.

[0073] Scheme 15. A welding clamping device according to any one of Schemes 1 to 14, characterized in that the number of the welding clamping mechanisms is 18.

[0074] Option 16. A turret welding equipment, characterized in that it includes a welding clamping device as described in any one of Options 1 to 15. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0076] Figure 1 It is a three-dimensional structural schematic diagram of the welding clamping device of the present invention;

[0077] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0078] Figure 3 It is a three-dimensional structural schematic diagram of the turret mechanism of the present invention;

[0079] Figure 4 The three-dimensional structure diagram of the welding clamping mechanism of the present invention is connected with the turret mechanism, the first cam and the second cam. Figure 1 , wherein a gas-electric slip ring is shown;

[0080] Figure 5 The three-dimensional structure diagram of the welding clamping mechanism of the present invention is connected with the turret mechanism, the first cam and the second cam. Figure 2 , in which part of the welding clamping mechanism is hidden;

[0081] Figure 6 is a top view of the collector plate clamping assembly of the present invention;

[0082] Figure 7 yes Figure 6 Cross-sectional view in the BB direction;

[0083] Figure 8 is a front view of the collector plate clamping assembly of the present invention;

[0084] Fig. 9 yes Figure 8 Cross-sectional view in CC direction;

[0085] Fig.10 is a three-dimensional structural schematic diagram of a current collecting plate clamping member of the present invention, wherein the current collecting plate is shown;

[0086] Fig.11 is a top view of the collector plate holder of the present invention, showing the collector plate;

[0087] Fig.12 yes Fig.11 Sectional view in the AA direction;

[0088] Fig.13 It is a schematic diagram of the three-dimensional structure of the winding core pressing assembly and the winding core of the present invention;

[0089] Fig.14 is a top view of the winding core pressing assembly and the winding core of the present invention;

[0090] Fig.15 yes Fig.14 Cross-sectional view in the middle DD direction;

[0091] Fig.16 It is a three-dimensional structural schematic diagram of the core pressing assembly of the present invention;

[0092] Fig.17 It is a three-dimensional structural schematic diagram of the first cam and the second cam of the present invention;

[0093] Fig.18 1 is a top view of the first cam and the second cam of the present invention when in use.

[0094] Reference numerals list :

[0095] 1. Welding clamping device;

[0096] 11. Fixing parts;

[0097] 12. turret mechanism; 121. upper connecting ring; 122. first limiting plate; 1221. first clamping slot; 123. second limiting plate; 1231. second clamping slot; 124. third limiting plate; 1241. through hole; 125. lower connecting plate; 126. guide column; 127. connecting member; 1271. first connecting column; 1272. second connecting column; 1273. third connecting column; 128. limiting cover; 129. driving member;

[0098] 13. Welding clamping mechanism; 131. Collector plate clamping assembly; 1311. Pressing plate; 13111. Air inlet connector; 13112. First gas channel; 1312. Adjusting plate; 1313. Pressing block; 13131. Second gas channel; 1314. First power spring; 1315. Welding pressure head; 13151. Third gas channel; 1316. Welding hole; 1317. First follower wheel; 132. Collector plate clamping member; 1321. Clamping ring column; 13211, first mounting hole; 13212, docking slot; 1322, abutting column; 1323, reset spring; 133, winding core pressing assembly; 1331, support member; 13311, second mounting hole; 1332, bearing member; 13321, first guide structure; 1333, second power spring; 1334, second follower wheel; 1335, buffer spring; 1336, limit plate; 13361, second guide structure;

[0099] 14, first cam; 141, first horizontal portion; 142, first transition portion; 143, second horizontal portion; 144, second transition portion;

[0100] 15, second cam; 151, third horizontal portion; 152, third transition portion; 153, fourth horizontal portion; 154, fourth transition portion;

[0101] 16. Gas-electric slip ring; 161. Fixed part; 162. Rotating part; 163. Air outlet; 164. Air inlet;

[0102] 17. Detector; 18. Collecting plate; 19. Winding core; 20. Winding core support cup. DETAILED DESCRIPTION

[0103] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0104] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "top", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0105] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "connect", and "install" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through other components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0106] For details, please also refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The welding clamping device 1 of the present invention comprises a fixing member 11, a turret mechanism 12, a first cam 14, a second cam 15 and a plurality of welding clamping mechanisms 13. The fixing member 11 is used to install the turret mechanism 12, the first cam 14, the second cam 15 and the welding clamping mechanism 13, and its specific structure is not limited. For example, the fixing member 11 is a machine table or a mounting frame.

[0107] Among them, the first cam 14 and the second cam 15 are installed on the fixing member 11 and are relatively fixed to the fixing member 11, that is, the positions of the first cam 14 and the second cam 15 are fixed and do not move in the horizontal and vertical directions. The first cam 14 and the second cam 15 are spaced apart in the vertical direction; the turret mechanism 12 is installed on the fixing member 11 and can rotate around the vertical axis relative to the fixing member 11; the first cam 14 and the second cam 15 are coaxially arranged with the turret mechanism 12; a plurality of welding clamping mechanisms 13 are installed on the turret mechanism 12, and the plurality of welding clamping mechanisms 13 are evenly distributed circumferentially around the central axis of the turret mechanism 12, and the top and bottom ends of the welding clamping mechanisms 13 are respectively abutted against the first cam 14 and the second cam 15.

[0108] When the turret mechanism 12 rotates, it drives the welding clamping mechanism 13 to rotate synchronously. During the rotation of the welding clamping mechanism 13, the top and bottom ends of the welding clamping mechanism 13 rotate along the first cam 14 and the second cam 15 respectively, and under the limitation of the first cam 14 and the second cam 15, the top and bottom ends of the welding clamping mechanism 13 move relatively, and press the collecting plate 18 against the end face of the winding core 19, or make the top and bottom ends of the welding clamping mechanism 13 move away from each other to release the clamping state; and the turret mechanism 12 can guide the welding clamping mechanism 13 during the movement of the welding clamping mechanism 13 so that the welding clamping mechanism 13 moves in the vertical direction.

[0109] The welding clamping device 1 of the present invention is provided with a turret mechanism 12, a first cam 14, a second cam 15 and a plurality of welding clamping mechanisms 13. The plurality of welding clamping mechanisms 13 are installed on the turret mechanism 12 and are evenly distributed circumferentially around the central axis of the turret mechanism 12. The first cam 14 and the second cam 15 are respectively in contact with the top and bottom ends of the welding clamping mechanisms 13. When the turret mechanism 12 drives the welding clamping mechanisms 13 to rotate, the top and bottom ends of the welding clamping mechanisms 13 are respectively rotated along the first cam 14 and the second cam 15, so that the welding clamping mechanisms 13 rotate along the turret mechanism 12. During the rotation, the welding clamping mechanism 13 can alternately cycle between the pressing state and the releasing state. When in the pressing state, the current collecting plate 18 can be pressed against the end surface of the winding core 19. Thus, the welding clamping device 1 of the present invention can be combined with a laser welding device to weld the current collecting plate 18 and the winding core 19 when the welding clamping mechanism 13 is in the pressing state. The current collecting plate 18 and the winding core 19 can be welded during the transfer process of the winding core 19, thereby avoiding equipment shutdown, improving the welding efficiency of the current collecting plate 18 and the production efficiency of the cylindrical battery, and thus reducing the cost of the cylindrical battery.

[0110] In addition, during the movement of the welding clamping mechanism 13 to clamp and release the current collecting disk and the winding core, the turret mechanism 12 in the present invention can guide the welding clamping mechanism 13 so that the welding clamping mechanism 13 moves in the vertical direction, thereby enabling the current collecting disk 18 and the winding core 19 to maintain a coaxial arrangement, thereby effectively improving the welding quality.

[0111] In a preferred embodiment, please also refer to Figure 4 , Figure 5 , Fig.17 and Fig.18 The top end of the welding clamping mechanism 13 abuts against the bottom surface of the first cam 14, and the first cam 14 includes a first horizontal portion 141, a first transition portion 142, a second horizontal portion 143, and a second transition portion 144. The first horizontal portion 141, the first transition portion 142, the second horizontal portion 143, and the second transition portion 144 are sequentially connected end to end and are annular, and the bottom surface of the first horizontal portion 141 is lower than the bottom surface of the second horizontal portion 143; the bottom end of the welding clamping mechanism 13 abuts against the top surface of the second cam 15, and the second cam 15 includes a third horizontal portion 151, a third The transition portion 152, the fourth horizontal portion 153 and the fourth transition portion 154, the third horizontal portion 151, the third transition portion 152, the fourth horizontal portion 153 and the fourth transition portion 154 are connected end to end in sequence and are annular, and the top surface of the third horizontal portion 151 is higher than the top surface of the fourth horizontal portion 153; wherein, in the circumferential direction, the third horizontal portion 151, the third transition portion 152, the fourth horizontal portion 153 and the fourth transition portion 154 are respectively located on the outside of the first horizontal portion 141, the first transition portion 142, the second horizontal portion 143 and the second transition portion 144.

[0112] The top end of the welding clamping mechanism 13 abuts against the bottom surface of the first cam 14, and the bottom end of the welding clamping mechanism 13 abuts against the top surface of the second cam 15, so that the concave and convex surface of the first cam 14 is set downward, and the concave and convex surface of the second cam 15 is set upward, which can facilitate the assembly of the welding clamping mechanism 13 with the first cam 14 and the second cam 15, reduce the complexity of the welding clamping mechanism 13, and reduce the volume of the welding clamping device 1.

[0113] In further preferred embodiments, please continue to refer to Fig.17 and Fig.18 , along the rotation direction of the turret mechanism 12, the welding clamping mechanism 13 passes through the starting end of the third horizontal portion 151 and the starting end of the first horizontal portion 141 in sequence during the rotation process. Fig.18As shown, when the rotation direction of the turret mechanism 12 is clockwise, when the turret mechanism 12 drives the welding clamping mechanism 13 to rotate, the bottom end of the welding clamping mechanism 13 first enters the third horizontal portion 151 of the second cam 15, and then the top end of the welding clamping mechanism 13 enters the first horizontal portion 141 of the first cam 14.

[0114] Along the rotation direction of the turret mechanism 12, the welding clamping mechanism 13 first passes through the starting end of the third horizontal part 151 and then passes through the starting end of the first horizontal part 141 during the rotation process. That is, the first cam 14 and the second cam 15 are arranged at a certain angle, and the starting end of the third horizontal part 151 is located in front of the starting end of the first horizontal part 141. Therefore, when the welding clamping mechanism 13 rotates, its bottom end first drives the winding core 19 to the clamping height of the clamping state, and then the top end of the welding clamping mechanism 13 drives the collecting plate 18 to the clamping height of the clamping state and presses the collecting plate 18 onto the end face of the winding core 19. It can also prevent the collecting plate 18 from falling and shifting during the downward movement, so that the collecting plate 18 and the winding core 19 remain coaxially arranged.

[0115] In another embodiment, along the rotation direction of the turret mechanism 12 , the welding clamping mechanism 13 passes through the starting end of the third horizontal portion 151 and the starting end of the first horizontal portion 141 simultaneously during the rotation process.

[0116] In a preferred embodiment, the angle between the starting end and the ending end of the first horizontal portion 141 and the angle between the starting end and the ending end of the third horizontal portion 151 are both 180°.

[0117] With this arrangement, the angle of the cam corresponding to the collecting plate 18 and the winding core 19 in the compressed state is 180°, which enables the collecting plate 18 and the winding core 19 to remain in the compressed state for a sufficiently long time to facilitate the welding operation.

[0118] In another embodiment, the angle between the starting end and the ending end of the first horizontal portion 141 and the angle between the starting end and the ending end of the third horizontal portion 151 are both 200°.

[0119] It should be noted that the present invention does not impose any restrictions on the angle between the starting end and the ending end of the first horizontal portion 141 and the third horizontal portion 151. In practical applications, those skilled in the art can set the angles of the first horizontal portion 141 and the third horizontal portion 151 in their cams according to actual needs. The specific implementation forms in the above-mentioned embodiments should not limit the protection scope of the present invention. Of course, it is preferred to set the angle between the starting end and the ending end of the first horizontal portion 141 and the angle between the starting end and the ending end of the third horizontal portion 151 to 180°, which can maintain the compression state for a sufficiently long time to ensure the welding quality, and also enable the non-compression state to last for a sufficiently long time to facilitate loading and unloading, thereby improving welding efficiency.

[0120] In a preferred embodiment, please continue to refer to Fig.18 The angle α between the starting end of the third horizontal portion 151 and the starting end of the first horizontal portion 141 is 10°.

[0121] The angle α between the starting end of the third horizontal portion 151 and the starting end of the first horizontal portion 141 is set to 10°. The setting of the 10° angle can not only enable the welding clamping mechanism 13 to stably move the winding core 19 to the clamping position, but also enable the collecting plate 18 and the winding core 19 to remain in the clamping state for a sufficiently long time to facilitate welding and easy use.

[0122] Although in the above embodiment, the concave-convex surface of the first cam 14 is set downward and the concave-convex surface of the second cam 15 is set upward, and the top and bottom ends of the welding clamping mechanism 13 are respectively abutted against the bottom surface of the first cam 14 and the top surface of the second cam 15, this does not limit the protection scope of the present invention. In practical applications, those skilled in the art can also arrange the first cam 14 and the second cam 15 in the same direction. For example: the concave-convex surfaces of the first cam 14 and the second cam 15 are both set upward, and the top and bottom ends of the welding clamping mechanism 13 are respectively abutted against the top surface of the first cam 14 and the top surface of the second cam 15, or the concave-convex surfaces of the first cam 14 and the second cam 15 are both set downward, and the top and bottom ends of the welding clamping device 1 are respectively abutted against the bottom surface of the first cam 14 and the bottom surface of the second cam 15; etc. This specific arrangement of the first cam 14 and the second cam 15 does not deviate from the basic principle of the present invention and should be limited within the protection scope of the present invention.

[0123] Of course, it is preferred to set the concave and convex surface of the first cam 14 downward and the concave and convex surface of the second cam 15 upward, and make the top and bottom ends of the welding clamping mechanism 13 abut against the bottom surface of the first cam 14 and the top surface of the second cam 15 respectively. This setting method can better assemble the welding clamping mechanism 13 and the cam, reduce the complexity of the welding clamping mechanism 13, and facilitate use.

[0124] In a preferred embodiment, please also refer to Figure 2 , Figure 4 and Figure 5 The welding clamping mechanism 13 includes a current collecting plate clamping assembly 131 , a winding core clamping assembly 133 and a current collecting plate clamping member 132 .

[0125] The collecting plate clamping member 132 is installed on the turret mechanism 12 and is relatively fixed to the turret mechanism 12. The collecting plate clamping member 132 can clamp the collecting plate 18, so that the collecting plate clamping member 132 and the collecting plate 18 inside it can rotate synchronously with the turret mechanism 12; the collecting plate clamping assembly 131 and the winding core clamping assembly 133 are both connected to the turret mechanism 12 and can move in the vertical direction relative to the turret mechanism 12 respectively. The collecting plate clamping assembly 131 and the winding core clamping assembly 133 are respectively connected to the turret mechanism 12 and can move in the vertical direction relative to the turret mechanism 12 respectively. They are respectively located above and below the collecting plate clamping part 132, the collecting plate clamping assembly 131 abuts against the bottom surface of the first cam 14, and the core clamping assembly 133 abuts against the top surface of the second cam 15. The core clamping assembly 133 can carry the core 19, and when the welding clamping mechanism 13 rotates, the collecting plate clamping assembly 131 can move in the vertical direction under the limit of the first cam 14, and the core clamping assembly 133 can drive the core 19 to move in the vertical direction under the limit of the second cam 15.

[0126] The welding clamping mechanism 13 includes a collecting plate clamping assembly 131, a collecting plate clamping piece 132 and a winding core clamping assembly 133 which are arranged in sequence from top to bottom, wherein the collecting plate clamping piece 132 is used to clamp the collecting plate 18 and is relatively fixed to the turret mechanism 12, and the collecting plate clamping assembly 131 and the winding core clamping assembly 133 can move relative to the turret mechanism 12 in the vertical direction, so that when the welding clamping mechanism 13 is clamping, it can determine the height of the collecting plate 18 after clamping (i.e., the height of the welding plane) based on the horizontal plane where the collecting plate clamping piece 132 is located, which facilitates the production and assembly of the collecting plate clamping assembly 131 and the winding core clamping assembly 133, and can ensure welding accuracy and welding effect, thereby ensuring product quality.

[0127] In another embodiment, the welding clamping mechanism 13 includes a current collecting plate adsorption and clamping assembly and a winding core clamping assembly distributed from top to bottom, and the current collecting plate adsorption and clamping assembly and the winding core clamping assembly are both connected to the turret mechanism 12, and can move in the vertical direction relative to the turret mechanism 12 respectively, the bottom of the current collecting plate adsorption and clamping assembly can adsorb the current collecting plate 18, and the winding core 19 clamping assembly can carry the winding core 19. During the rotation of the welding clamping mechanism 13, the current collecting plate adsorption and clamping assembly can drive the current collecting plate 18 to move up and down in the vertical direction under the limit of the first cam 14, and the winding core clamping assembly can drive the winding core 19 to move up and down in the vertical direction under the limit of the second cam 15.

[0128] It should be noted that the present invention does not impose any restrictions on the specific structure of the welding clamping mechanism 13, as long as the welding clamping mechanism 13 can move relatively at both ends to clamp the collecting plate 18 and the winding core 19 under the limitation of the first cam 14 and the second cam 15 and the guidance of the turret mechanism 12 during the rotation with the turret mechanism 12, so as to perform the welding operation. In practical applications, those skilled in the art can set the specific structure of the welding clamping mechanism 13 according to actual needs. The specific implementation form of the welding clamping mechanism 13 in the above-mentioned embodiment should not limit the protection scope of the present invention.

[0129] In a preferred embodiment, please also refer to Figures 3 to 5 The turret mechanism 12 includes an upper connecting ring 121 , a first limiting plate 122 , a second limiting plate 123 , a third limiting plate 124 , a lower connecting plate 125 , a driving member 129 (such as a servo motor or a stepping motor) and a plurality of guide columns 126 .

[0130] Among them, the upper connecting ring 121, the first limiting plate 122, the second limiting plate 123, the third limiting plate 124 and the lower connecting plate 125 are spaced apart from top to bottom, and are all coaxially arranged with the first cam 14 and the second cam 15. The guide column 126 vertically penetrates the first limiting plate 122, the second limiting plate 123 and the third limiting plate 124, and its two ends are respectively connected to the upper connecting ring 121 and the lower connecting plate 125. Multiple groups of guide columns 126 are evenly distributed circumferentially to stably connect the upper connecting ring 121 and the lower connecting plate 125. The first limiting plate 122, the second limiting plate 123 and the third limiting plate 124 are connected to the lower connecting plate 125 through a connecting piece 127.

[0131] The first cam 14 is located on the inner side of the upper connecting ring 121, the second cam 15 is located on the outer side of the lower connecting plate 125, the driving member 129 is connected to the fixing member 11, and can drive the upper connecting ring 121, the first limiting plate 122, the second limiting plate 123, the third limiting plate 124 and the lower connecting plate 125 to rotate.

[0132] The first limiting plate 122 is evenly provided with a plurality of first slots 1221 for clamping the collecting plate clamp 132 along its circumference, the second limiting plate 123 is evenly provided with a plurality of second slots 1231 along its circumference, and the third limiting plate 124 is evenly provided with a plurality of through holes 1241 for accommodating the core clamping assembly 133 along its circumference. Each first slot 1221 is opposite to a second slot 1231 and a through hole 1241 below, so as to ensure that the collecting plate 18 and the core 19 are arranged coaxially.

[0133] Each collecting plate clamping assembly 131 is connected to a group of guide posts 126 and can move along the guide posts 126. The collecting plate clamping assembly 131 is located above the first limiting plate 122. Each winding core clamping assembly 133 is connected to a group of guide posts 126 and can move along the guide posts 126. The winding core clamping assembly 133 is located below the first limiting plate 122. The same group of guide posts 126 guides the collecting plate clamping assembly 131 and the winding core clamping assembly 133 at the same time, which can ensure that the collecting plate 18 and the winding core 19 always maintain a coaxial arrangement during the movement of the two, which helps to ensure welding accuracy and welding quality.

[0134] The turret mechanism 12 is configured to include an upper connecting ring 121, a first limiting plate 122, a second limiting plate 123, a third limiting plate 124, a lower connecting plate 125, a driving member 129 and a plurality of guide columns 126. The structure is simple, and it is convenient to assemble the collecting plate clamping assembly 131, the collecting plate clamping member 132 and the winding core clamping assembly 133, and it is convenient for the turret mechanism 12 to drive the collecting plate clamping assembly 131, the collecting plate clamping member 132 and the winding core clamping assembly 133 to rotate, thereby improving the stability of the rotation, and can effectively prevent the winding core 19 and the collecting plate 18 from being horizontally shifted relative to the turret mechanism 12 during the rotation process.

[0135] In a preferred embodiment, please also refer to Figure 4 and Figure 5 The bottom surface of the first cam 14 is lower than the bottom surface of the upper connecting ring 121, and the top surface of the second cam 15 is higher than the top surface of the lower connecting plate 125. This arrangement can reduce the volume of the welding clamping device 1 and make the structure more compact.

[0136] In a preferred embodiment, the first limiting plate 122, the second limiting plate 123 and the third limiting plate 124 are all circular ring plates, which have a simple structure, are easy to prepare, and can reduce the weight of the turret mechanism 12, help improve the rotation efficiency of the turret mechanism 12, and reduce power consumption.

[0137] In a preferred embodiment, the number of guide columns 126 in each group of guide columns 126 is at least two. The two guide columns 126 guide and connect the collector plate clamping assembly 131 and the winding core clamping assembly 133 at the same time, which can prevent the collector plate clamping assembly 131 and the winding core clamping assembly 133 from being displaced in the horizontal direction relative to the turret mechanism 12 when the collector plate clamping assembly 131 and the winding core clamping assembly 133 are driven to rotate, so that the collector plate 18 and the winding core 19 can always be arranged coaxially, which helps to improve welding accuracy and product quality.

[0138] Exemplarily, two guide posts 126 in each group of guide posts 126 are spaced apart from each other in the radial direction of the turret mechanism 12 .

[0139] Exemplarily, the two guide posts 126 in each group of guide posts 126 are spaced apart from each other along the circumference of the turret mechanism 12 .

[0140] In a preferred embodiment, please also refer to Figure 1 and Figure 2 The turret mechanism 12 further includes a cylindrical limiting cover 128, which is disposed on the outer sides of the first limiting plate 122, the second limiting plate 123 and the third limiting plate 124, and is connected to the side wall of the third limiting plate 124. The collector plate clamp 132 abuts against the inner wall of the limiting cover 128, and the core support cup 20 carrying the core 19 in the second slot 1231 abuts against the limiting cover 128. The limiting cover 128 fixes the collector plate clamp 132 in the first slot 1221, and fixes the core support cup 20 carrying the core 19 in the second slot 1231, thereby preventing the collector plate clamp 132 and the core 19 from moving outward due to centrifugal force during rotation, and further ensuring that the collector plate 18 and the core 19 are arranged coaxially.

[0141] In a preferred embodiment, see Figure 3 and Figure 5 The connecting member 127 includes a plurality of first connecting columns 1271 , a plurality of second connecting columns 1272 and a plurality of third connecting columns 1273 .

[0142] The first limiting plate 122 is connected to the lower connecting plate 125 through a plurality of first connecting pillars 1271. The first connecting pillars 1271 penetrate the second limiting plate 123 and the third limiting plate 124, and the plurality of first connecting pillars 1271 are evenly distributed in the circumferential direction. The first connecting pillars 1271 directly connect the lower connecting plate 125 to the first limiting plate 122, and the plurality of first connecting pillars 1271 support the first limiting plate 122 in multiple directions, so that the first limiting plate 122 can be kept stable and the connection strength can be improved.

[0143] The second limiting plate 123 is connected to the third limiting plate 124 through a plurality of second connecting pillars 1272, and the plurality of second connecting pillars 1272 are evenly distributed in the circumferential direction. The second connecting pillars 1272 connect the second limiting plate 123 to the third limiting plate 124, and the plurality of second connecting pillars 1272 support the second limiting plate 123 in multiple directions, which can improve the connection strength between the second limiting plate 123 and the third limiting plate 124.

[0144] The third limiting plate 124 is connected to the lower connecting plate 125 through a plurality of third connecting pillars 1273, and the plurality of third connecting pillars 1273 are evenly distributed in the circumference. The third connecting pillars 1273 connect the third limiting plate 124 to the lower connecting plate 125, and the plurality of third connecting pillars 1273 are evenly distributed in the circumference, so that the third limiting plate 124 can be kept stable, and the connection strength between the third limiting plate 124 and the lower connecting plate 125 is improved.

[0145] The first connecting column 1271 directly connects the lower connecting plate 125 with the first limiting plate 122, the third connecting column 1273 connects the third limiting plate 124 with the lower connecting plate 125, and the second connecting column 1272 connects the third limiting plate 124 with the second limiting plate 123. Compared with the method of connecting two adjacent structural members, this arrangement has a higher connection stability, can keep the turret mechanism 12 balanced and stable, improve the bearing capacity of each layer of the turret mechanism 12, and is more convenient to use.

[0146] In a preferred embodiment, please also refer to Figures 5 to 9 The collecting plate pressing assembly 131 includes a pressing plate 1311 , an adjusting plate 1312 , a pressing block 1313 and a first power spring 1314 .

[0147] Among them, the pressure plate 1311, the adjustment plate 1312 and the pressure block 1313 are connected in sequence from top to bottom, the pressure plate 1311 is sleeved on the guide column 126 and can move along the guide column 126, the guide column 126 guides the pressure plate 1311 to keep the collecting plate clamping assembly 131 moving vertically, the first power spring 1314 is sleeved on the guide column 126 and passes through the first limiting plate 122, the two ends of the first power spring 1314 are respectively abutted against the bottom surface of the pressure plate 1311 and the top surface of the second limiting plate 123, the pressure plate 1311 is abutted against the bottom surface of the first cam 14 through the first follower wheel 1317, the first follower wheel 1317 is pivotally connected to the pressure plate 1311, and the provision of the first follower wheel 1317 can enable the collecting plate clamping assembly 131 to smoothly move along the first cam 14 moves to reduce the movement resistance, the first power spring 1314 is always in a compressed state, so that its rebound force presses the pressure plate 1311 upward, and then the first follower wheel 1317 is always in contact with the bottom surface of the first cam 14; a downwardly extending welding pressure head 1315 is provided on the bottom wall of the pressure plate 1311, and the welding pressure head 1315 can abut against the collecting disk 18 located in the collecting disk clamping piece 132 when moving vertically downward, and press the collecting disk 18 to move downward to move to the welding plane; a welding hole 1316 is provided on the collecting disk clamping assembly 131, and the welding hole 1316 passes through the pressure plate 1311, the adjustment plate 1312, the pressure block 1313 and the welding pressure head 1315; the welding hole 1316 is used to pass the laser to weld the collecting disk 18 to the winding core 19.

[0148] The current collecting disc clamping assembly 131 is configured as a pressure plate 1311, an adjustment plate 1312, a pressure block 1313, a welding pressure head 1315 and a first power spring 1314. The structure is simple and convenient for manufacturing and assembly. In addition, such a configuration can ensure the assembly accuracy of the current collecting disc clamping assembly 131 by controlling the thickness of the adjustment plate 1312, so that when the assembled current collecting disc clamping assembly 131 is in the clamping state, the current collecting disc 18 is always located at the height of the welding plane, thereby ensuring the welding accuracy. Among them, the welding plane in the present invention is the horizontal plane where the welding height is determined before assembly. When all welding clamping mechanisms 13 clamp the current collecting disc 18 on the winding core 19, the clamped current collecting disc 18 is located at the height of the welding plane. Therefore, the welding accuracy can be improved by ensuring the processing accuracy of the current collecting disc clamping assembly 131 and the current collecting disc clamp 132, thereby ensuring the product quality.

[0149] In a preferred embodiment, please also refer to Figure 7 and Fig. 9A gas inlet connector 13111 is provided on the pressing plate 1311, a first gas channel 13112 communicating with the gas inlet connector 13111 is provided in the pressing plate 1311, a second gas channel 13131 is provided on the pressing block 1313, the first gas channel 13112 passes through the adjusting plate 1312 and communicates with the second gas channel 13131, a plurality of third gas channels 13151 are provided in the welding pressing head 1315, the plurality of third gas channels 13151 are evenly distributed in the circumferential direction, and one end of the third gas channel 13151 passes through the inner wall of the welding pressing head 1315 and communicates with the welding hole 1316, and the second gas channel 13131 is communicated with the third gas channel 13151.

[0150] By providing the first gas channel 13112 , the second gas channel 13131 and the third gas channel 13151 which are connected in the collecting plate clamping assembly 131 , a shielding gas can be blown into the welding hole 1316 to ensure the welding quality.

[0151] In a preferred embodiment, please also refer to Figure 1 and Figure 4 The welding clamping device 1 of the present invention also includes a gas-electric slip ring 16, which is located on the inner side of the first cam 14. The fixed portion 161 of the gas-electric slip ring 16 is connected to the fixing member 11. The rotating portion 162 of the gas-electric slip ring 16 is connected to the first limiting disk 122 and can rotate relative to the fixed portion 161. The gas outlet end 163 of the rotating portion 162 is located between the bottom surface of the first cam 14 and the top surface of the first limiting disk 122. The multiple gas outlet ends 163 of the rotating portion 162 are respectively connected to the multiple gas inlet joints 13111 through connecting pipes. The multiple gas inlet ends 164 of the fixed portion 161 are all connected to a protective gas source, and the multiple gas inlet ends 164 are respectively connected to the multiple gas outlet ends 163.

[0152] By providing the gas-electric slip ring 16, the gas circuit and the wiring harness are arranged reasonably, which reduces the difficulty of line arrangement and facilitates use.

[0153] In a preferred embodiment, please also refer to Figure 5 , Fig.10 , Fig.11 and Fig.12 The collecting plate clamp 132 includes a clamping ring column 1321 and a plurality of tightening columns 1322 located in the clamping ring column 1321. An annular docking groove 13212 is provided on the outer wall of the clamping ring column 1321. When the clamping ring column 1321 is inserted into the first groove 1221, the first limiting plate 122 is inserted into the docking groove 13212, and the groove thickness of the docking groove 13212 is the same as the thickness of the first limiting plate 122. Therefore, the docking groove 13212 can limit the relative movement of the collecting plate clamp 132 and the first limiting plate 122 in the vertical direction, which helps to control the welding accuracy.

[0154] A first mounting hole 13211 is provided on the inner wall of the clamping ring column 1321 along its radial direction. The number of the first mounting holes 13211 is multiple and evenly distributed in the circumferential direction. A reset spring 1323 is installed in the first mounting hole 13211. The abutting column 1322 is located in the first mounting hole 13211 and is connected to the reset spring 1323. The abutting column 1322 extends toward the center along the radial direction of the clamping ring column 1321 and extends out of the first mounting hole 13211. The reset spring 1323 can enable the clamping ring column 1321 to move in the first mounting hole 13211, so as to clamp the collecting plate 18 and enable the collecting plate 18 to move downward after being subjected to force, so as to press the collecting plate 18 against the end surface of the winding core 19.

[0155] The collecting plate clamping member 132 includes a clamping ring column 1321, a tightening column 1322 and a return spring 1323. It has a simple structure, good clamping and positioning effect on the collecting plate 18, and is easy to use.

[0156] In a preferred embodiment, one end of the abutting column 1322 near the center of the clamping ring column 1321 is hemispherical. This arrangement facilitates the current collecting plate 18 to press the abutting column 1322 to move radially outward when moving downward, so that the current collecting plate 18 can move downward smoothly.

[0157] In a preferred embodiment, the plurality of clamping columns 1322 include a plurality of first clamping columns and a plurality of second clamping columns, the top surface of the first clamping columns is located above the top surface of the second clamping columns, the plurality of first clamping columns are evenly distributed circumferentially, the plurality of second clamping columns are evenly distributed circumferentially, in the circumferential direction, the first clamping columns and the second clamping columns are staggered, and the current collecting plate 18 is provided with avoidance holes at positions corresponding to the first clamping columns, and when the current collecting plate clamping member 132 clamps the current collecting plate 18, the first clamping column is located in the avoidance hole, and the bottom surface of the current collecting plate 18 abuts against the top surface of the second clamping column.

[0158] By staggeredly distributing the first clamping column and the second clamping column in height and circumferential direction, the collecting plate 18 can be limited in position, and while clamping the collecting plate 18, the collecting plate 18 is restricted from rotating along its circumference, so that the collecting plate 18 and the turret mechanism 13 remain relatively fixed in the horizontal direction, so that the welding area of ​​the collecting plate 18 is arranged opposite to the welding hole 1316, thereby improving the welding quality.

[0159] In a preferred embodiment, please also refer to Figure 5 as well as Figures 13 to 16 The core pressing assembly 133 includes a support member 1331 , a bearing member 1332 and a second power spring 1333 .

[0160] Among them, the carrier 1332 is installed on the support member 1331, and the carrier 1332 can fix the supporting core 19. Specifically, the carrier 1332 can be sleeved with a fixed core cup 20, and the core 19 is fixed in the core cup 20. The core 19 is fixed by the core cup 20. The outer ring electrode of the core 19 can be avoided from being scratched during the assembly and rotation process, so as to ensure the quality of the battery.

[0161] The support member 1331 is sleeved on the guide column 126 and can move along the guide column 126. The guide column 126 guides the core pressing assembly 133 to ensure that the core pressing assembly 133 moves in the vertical direction and prevents the core pressing assembly 133 from deviating in the horizontal direction. The second power spring 1333 is sleeved on the guide column 126 and passes through the third limiting plate 124. The two ends of the second power spring 1333 are respectively connected to the top surface of the support member 1331 and the second limiting plate 123. The bottom surface of the support member 1331 abuts against the top surface of the second cam 15 through the second follower wheel 1334. The second follower wheel 1334 is pivotally connected to the support member 1331. The provision of the second follower wheel 1334 can enable the support member 1331 to move smoothly along the top surface of the second cam 15 and reduce the movement resistance. The second power spring 1333 is always in a compressed state, and its rebound force presses the support member 1331 downward, so that the second follower wheel 1334 is always in contact with the second cam 15.

[0162] The winding core pressing assembly 133 includes a supporting member 1331, a bearing member 1332, a second power spring 1333 and a second follower wheel 1334, and has a simple structure, and is convenient for production, manufacturing and assembly.

[0163] In a preferred embodiment, please continue to refer to Fig.15 The core clamping assembly 133 also includes a buffer spring 1335. A second mounting hole 13311 is provided on the top surface of the support member 1331. One end of the buffer spring 1335 is installed in the bearing member 1332. The other end of the buffer spring 1335 extends out of the bearing member 1332 and is installed in the second mounting hole 13311. The bottom end of the bearing member 1332 is located in the second mounting hole 13311, and the bearing member 1332 can move in the vertical direction relative to the support member 1331. By setting a buffer spring 1335, the height of the support member 1332 can be finely adjusted in the vertical direction, and it can ensure that the collecting plate 18 and the winding core 19 of the welding clamping mechanism 13 are always in a clamped state. It can also compensate for the error in the vertical direction caused by the vibration generated by the rotation of the turret mechanism 12, the processing error of the winding core clamping component 133, and the assembly error, so that the winding core clamping component 133 can perfectly cooperate with the collecting plate clamping component 131 to realize the clamping of the collecting plate 18 and the winding core 19, which is more convenient to use.

[0164] In a preferred embodiment, please continue to refer to Fig.16 A first guide structure 13321 is provided at the top of the carrier 1332. The first guide structure 13321 is provided to facilitate inserting the core support cup 20 onto the carrier 1332, thereby facilitating the assembly of the core 19.

[0165] In one embodiment, the first guiding structure 13321 is a guiding slope.

[0166] In another embodiment, the first guiding structure 13321 is a guiding arc surface.

[0167] In a preferred embodiment, please continue to refer to Fig.16 The core pressing assembly 133 further includes two limiting plates 1336, which are mounted on the support member 1331 and are respectively located on both sides of the bearing member 1332. The limiting plates 1336 can limit the core support cup 20, thereby preventing the core support cup 20 from moving in the horizontal direction during the rotation process.

[0168] In a preferred embodiment, please continue to refer to Fig.16 The top of the limiting plate 1336 is provided with a second guide structure 13361. The second guide structure 13361 is provided to facilitate inserting the core support cup 20 onto the carrier 1332, thereby facilitating the assembly of the core 19.

[0169] In one embodiment, the second guiding structure 13361 is a guiding slope.

[0170] In another embodiment, the second guiding structure 13361 is a guiding arc surface.

[0171] In a preferred embodiment, please also refer to Figures 1 to 3 The welding clamping device 1 of the present invention also includes a detector 17, and the number of detectors 17 is multiple. Multiple detectors 17 are installed on the second limiting plate 123, and each second card slot 1231 is correspondingly provided with a detector 17. The detector 17 can detect whether there is a winding core 19 in the corresponding second card slot 1231.

[0172] A detector 17 is correspondingly provided for each second slot 1231 to detect whether there is a winding core 19 in the second slot 1231 , so as to facilitate connection with a control system, thereby facilitating control of the operation of the laser welding device.

[0173] Exemplarily, the detector 17 is a photoelectric sensor.

[0174] In a preferred embodiment, the number of the welding clamping mechanisms 13 is 18.

[0175] The number of welding clamping mechanisms 13 is set to 18, which can meet the requirements of normal loading (adding new collecting plates 18 and winding cores 19), unloading (removing the winding cores 19 after welding) and welding cycle (welding time), and its automated welding efficiency is high. In addition, the turret mechanism 12 and the welding clamping mechanism 13 corresponding to the 18 welding clamping mechanisms 13 are small in size, thereby reducing the volume of the overall welding clamping device 1, which is convenient for production, manufacturing and assembly.

[0176] In another embodiment, the number of the welding clamping mechanisms 13 may also be set to 20.

[0177] It should be noted that the present invention does not impose any restrictions on the number of welding clamping mechanisms 13. In practical applications, those skilled in the art can set the specific number of welding clamping mechanisms 13 according to actual needs. The specific implementation forms in the above embodiments shall not limit the protection scope of the present invention.

[0178] Of course, it is preferred to set the number of welding clamping mechanisms 13 to 18. Compared with a welding clamping device 1 provided with more than 18 welding clamping mechanisms 13, 18 welding clamping mechanisms 13 can reduce the volume of the welding clamping device 1 during assembly. Compared with a welding clamping device 1 provided with less than 18 welding clamping mechanisms 13, its welding efficiency is high and the difficulty of production, manufacturing and assembly is low.

[0179] In addition, the present invention also protects a turret welding device, which includes the welding clamping device 1 mentioned above.

[0180] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A welding clamping device, characterized in that: It includes a fixing part, a turret mechanism, a first cam, a second cam and a plurality of welding clamping mechanisms; The first cam and the second cam are mounted on the fixing member and fixed relative to the fixing member, and the first cam and the second cam are spaced apart in the vertical direction; The turret mechanism is mounted on the fixing member and can rotate relative to the fixing member around a vertical axis; the first cam and the second cam are coaxially arranged with the turret mechanism; A plurality of the welding clamping mechanisms are installed on the turret mechanism and are evenly distributed circumferentially around the central axis of the turret mechanism, and the top and bottom ends of the welding clamping mechanisms are respectively in contact with the first cam and the second cam; The turret mechanism drives the welding clamping mechanism to rotate synchronously when rotating. During the rotation process, the top and bottom ends of the welding clamping mechanism rotate along the first cam and the second cam respectively, and under the limitation of the first cam and the second cam, the top and bottom ends of the welding clamping mechanism move relatively and press the collecting plate onto the end surface of the winding core, or the top and bottom ends of the welding clamping mechanism move away from each other to release the clamping state; and the turret mechanism can guide the welding clamping mechanism during the movement of the welding clamping mechanism so that the welding clamping mechanism moves in the vertical direction; The welding clamping mechanism includes a collector plate clamping assembly, a winding core clamping assembly and a collector plate clamping piece. The collecting plate clamping member is installed on the turret mechanism and fixed relative to the turret mechanism, and the collecting plate clamping member can clamp the collecting plate; The collecting disk pressing assembly and the winding core pressing assembly are both connected to the turret mechanism and can move in the vertical direction relative to the turret mechanism respectively. The collecting disk pressing assembly and the winding core pressing assembly are respectively located above and below the collecting disk clamping member. The collecting disk pressing assembly abuts against the bottom surface of the first cam, and the winding core pressing assembly abuts against the top surface of the second cam. The winding core pressing assembly can carry the winding core. During the rotation of the welding clamping mechanism, the collecting plate clamping assembly can move in the vertical direction under the limit of the first cam, and the winding core clamping assembly can drive the winding core to move in the vertical direction under the limit of the second cam; The turret mechanism includes an upper connecting ring, a first limiting plate, a second limiting plate, a third limiting plate, a lower connecting plate, a driving member and a plurality of guide columns. The upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate are sequentially spaced from top to bottom and are coaxially arranged with the first cam and the second cam. The guide column vertically penetrates the first limiting plate, the second limiting plate and the third limiting plate and its two ends are respectively connected to the upper connecting ring and the lower connecting plate. Multiple groups of guide columns are evenly distributed in the circumference. The first limiting plate, the second limiting plate and the third limiting plate are connected to the lower connecting plate through a connecting piece. The first cam is located on the inner side of the upper connecting ring, and the second cam is located on the outer side of the lower connecting plate. The driving member is connected to the fixing member and can drive the upper connecting ring, the first limiting plate, the second limiting plate, the third limiting plate and the lower connecting plate to rotate; The first limiting plate is evenly provided with a plurality of first clamping grooves for clamping the current collecting plate clamping member along its circumference, the second limiting plate is evenly provided with a plurality of second clamping grooves along its circumference, and the third limiting plate is evenly provided with a plurality of through holes for accommodating the winding core pressing assembly along its circumference, and each of the first clamping grooves is opposite to one of the second clamping grooves and one of the through holes; Each of the current collecting plate clamping assemblies is connected to a group of the guide posts and can move along the guide posts, and the current collecting plate clamping assemblies are located above the first limiting plate; Each of the core pressing assemblies is connected to a group of the guide posts and can move along the guide posts. The core pressing assemblies are located below the first limiting disk.

2. The welding clamping device according to claim 1, characterized in that: The top end of the welding clamping mechanism abuts against the bottom surface of the first cam, the first cam comprises a first horizontal portion, a first transition portion, a second horizontal portion and a second transition portion, the first horizontal portion, the first transition portion, the second horizontal portion and the second transition portion are sequentially connected end to end and are annular, and the bottom surface of the first horizontal portion is lower than the bottom surface of the second horizontal portion; The bottom end of the welding clamping mechanism abuts against the top surface of the second cam, the second cam comprises a third horizontal portion, a third transition portion, a fourth horizontal portion and a fourth transition portion, the third horizontal portion, the third transition portion, the fourth horizontal portion and the fourth transition portion are sequentially connected end to end and are annular, and the top surface of the third horizontal portion is higher than the top surface of the fourth horizontal portion; Wherein, in the circumferential direction, the third horizontal portion, the third transition portion, the fourth horizontal portion and the fourth transition portion are respectively located on the outsides of the first horizontal portion, the first transition portion, the second horizontal portion and the second transition portion.

3. The welding clamping device according to claim 2, characterized in that: Along the rotation direction of the turret mechanism, the welding clamping mechanism passes through the starting end of the third horizontal part and the starting end of the first horizontal part in sequence during the rotation process.

4. The welding clamping device according to claim 1, characterized in that: The connecting member includes a plurality of first connecting pillars, a plurality of second connecting pillars and a plurality of third connecting pillars, The first limiting plate is connected to the lower connecting plate through a plurality of the first connecting pillars, the first connecting pillars penetrate the second limiting plate and the third limiting plate, and the plurality of the first connecting pillars are evenly distributed in the circumferential direction; The second limiting plate is connected to the third limiting plate through a plurality of the second connecting pillars, and the plurality of the second connecting pillars are evenly distributed in the circumferential direction; The third limiting plate is connected to the lower connecting plate through a plurality of third connecting pillars, and the plurality of third connecting pillars are evenly distributed in the circumferential direction.

5. The welding clamping device according to claim 1, characterized in that: The collector plate clamping member includes a clamping ring column and a plurality of abutting columns located in the clamping ring column. An annular docking groove is provided on the outer wall of the clamping ring column. When the clamping ring column is inserted into the first groove, the first limiting plate is inserted into the docking groove. The groove thickness of the docking groove is the same as that of the first limiting plate. A first mounting hole is provided on the inner wall of the clamping ring column along its radial direction, the number of the first mounting holes is multiple and evenly distributed circumferentially, a return spring is installed in the first mounting hole, the clamping column is located in the first mounting hole and connected to the return spring, the clamping column extends toward the center along the radial direction of the clamping ring column and its end extends out of the first mounting hole.

6. The welding clamping device according to claim 1, characterized in that: The collecting plate pressing assembly includes a pressing plate, an adjusting plate, a pressing block and a first power spring, wherein the pressing plate, the adjusting plate and the pressing block are connected in sequence from top to bottom. The pressure plate is sleeved on the guide column and can move along the guide column, the first power spring is sleeved on the guide column and passes through the first limiting plate, and the two ends of the first power spring are respectively in contact with the bottom surface of the pressure plate and the top surface of the second limiting plate; the pressure plate is in contact with the bottom surface of the first cam through the first follower wheel; A welding pressure head extending downward is provided on the bottom wall of the pressure plate, and when the welding pressure head moves vertically downward, it can abut against the current collecting disk located in the current collecting disk clamping piece and press the current collecting disk to move downward; The collecting plate pressing assembly is provided with a welding hole, and the welding hole passes through the pressing plate, the adjusting plate, the pressing block and the welding pressing head.

7. The welding clamping device according to claim 6, characterized in that: The pressing plate is provided with an air inlet connector, the pressing plate is provided with a first gas channel connected to the air inlet connector, the pressing block is provided with a second gas channel, the first gas channel passes through the regulating plate and is connected to the second gas channel, A plurality of third gas channels are provided in the welding pressure head, and the plurality of third gas channels are evenly distributed circumferentially, and one end of the third gas channel is connected to the welding hole, and the other end of the third gas channel is connected to the second gas channel.

8. The welding clamping device according to claim 7, characterized in that: It also includes a gas-electric slip ring, which is located on the inner side of the first cam, the fixed part of the gas-electric slip ring is connected to the fixed part, the rotating part of the gas-electric slip ring is connected to the first limiting disk and can rotate relative to the fixed part, and the air outlet end of the rotating part is located between the bottom surface of the first cam and the top surface of the first limiting disk, the multiple air outlet ends of the rotating part are respectively connected to the multiple air inlet joints through connecting pipes, and the multiple air inlet ends of the fixed part are all connected to a protective air source.

9. The welding clamping device according to claim 1, characterized in that: The core pressing assembly includes a support member, a bearing member and a second power spring, the bearing member is mounted on the support member, and the bearing member can fix the bearing core. The support member is sleeved on the guide column and can move along the guide column, the second power spring is sleeved on the guide column and passes through the third limiting plate, and the two ends of the second power spring are respectively in contact with the top surface of the support member and the bottom surface of the second limiting plate. The support member abuts against the top surface of the second cam through the second follower wheel.

10. The welding clamping device according to claim 9, characterized in that: The core pressing assembly further includes a buffer spring, A second mounting hole is provided on the top surface of the support member, one end of the buffer spring is installed in the bearing member, the other end of the buffer spring extends out of the bearing member and is installed in the second mounting hole, the bottom end of the bearing member is located in the second mounting hole, and the bearing member can move in a vertical direction relative to the support member.

11. The welding clamping device according to claim 9, characterized in that: The core pressing assembly further includes two limit plates, which are mounted on the support member and are respectively located on both sides of the bearing member.

12. The welding clamping device according to claim 1, characterized in that: It also includes a detector, wherein the number of the detectors is multiple, and the multiple detectors are installed on the second limiting plate and each second card slot corresponds to one detector, and the detector can detect whether there is a winding core in the corresponding second card slot.

13. The welding clamping device according to any one of claims 1 to 12, characterized in that: The number of the welding clamping mechanisms is 18.

14. A turret welding device, characterized in that: A welding clamping device comprising the welding clamping device according to any one of claims 1 to 13.

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