Welding pressing apparatus and turret welding device

Abstract

A welding pressing apparatus, comprising a fixing member (11), a turret mechanism (12), a first cam (14), a second cam (15), and a plurality of welding pressing mechanisms (13); the turret mechanism (12) is mounted on the fixing member (11) and can rotate about a vertical axis; the first cam (14), the second cam (15), and the turret mechanism (12) are arranged coaxially; the plurality of welding pressing mechanisms (13) are mounted on the turret mechanism (12) and are evenly distributed in the circumferential direction, and the top end and bottom end of each welding pressing mechanism (13) respectively abut the first cam (14) and the second cam (15); when rotating, the turret mechanism (12) drives the welding pressing mechanisms (13) to rotate synchronously, and while rotating the welding pressing mechanisms (13) can press a collecting disc (18) onto the end face of a winding core (19) or release the pressing state. The present welding pressing apparatus can be matched with a laser welding apparatus (2), and the winding core (19) and the collecting disc (18) are welded during the rotation of the winding core (19), increasing the efficiency of welding the collecting disc (18). Also provided is a turret welding device.

Description

Welding clamping device and turret welding equipment

[0001] This application claims priority to Chinese patent application No. 202311124811.8 filed on August 31, 2023, with the invention name “Welding clamping device and turret welding equipment”. The entire contents of the above Chinese patent application are incorporated into this application by reference.

[0002] This application claims priority to Chinese patent application No. 202311118715.2, filed on August 31, 2023, with the invention name “Turret Welding Equipment”. The entire contents of the above Chinese patent application are incorporated into this application by reference. Technical Field

[0003] The present invention belongs to the technical field of battery processing, and specifically provides a welding clamping device and a turret welding device. Background Art

[0004] The battery cell is the most important component of the battery. It undergoes mechanical / ultrasonic flattening, encapsulation, casing, and collector plate welding before it can be assembled into a battery. Therefore, the performance of the cell directly affects the performance of the battery, making the cell preparation process before battery assembly extremely important.

[0005] At present, there are many different solutions for welding the collector plate of cylindrical power batteries. The most commonly used method is to fix the collector plate and the core on a pallet fixture, and transport the battery cells and the collector plate to the welding mechanism through a conveyor line, a double-speed chain and other transport actuators. After the transport actuator stops, the collector plate and the battery cells are welded. Since welding operations cannot be performed during the process of the battery cells and the collector plate entering and leaving the workstation by the transport actuator, and the time taken 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.

[0006] Therefore, this field needs a new technical solution to solve the above technical problems.

[0007] Summary of the Invention

[0008] The present invention aims to solve the above technical problem, that is, to solve the problem of low welding efficiency between the current collecting plate and the winding core in the existing cylindrical battery production process.

[0009] 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 in contact with 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, its top and bottom ends 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 relative to each other and press the collecting plate onto the end face of the winding core or make 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.

[0010] In the preferred technical solution 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 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.

[0011] 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 portion and the starting end of the first horizontal portion during the rotation process.

[0012] 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°.

[0013] 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°.

[0014] and a control panel that is formed on a pair of opposite ends of the guide rail, and a pair of opposite ends of the guide rail are connected to each other to form a pair of opposite ends of the guide rail, and the pair of opposite ends of the guide rail is connected to the control panel to form a pair of opposite ends of the guide rail.

[0015] In the preferred technical solution of the above-mentioned welding pressing 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 posts, 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 post vertically passes through 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, and multiple groups of guide posts 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 is connected to the The fixing part is connected and can drive the upper connecting ring, the first limit plate, the second limit plate, the third limit plate and the lower connecting plate to rotate; the first limit plate is evenly provided with a plurality of first clamping grooves along its circumference for clamping the collecting plate clamping member, the second limit plate is evenly provided with a plurality of second clamping grooves along its circumference, and the third limit 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 the guide posts and can move up and down along the guide posts, and the collecting plate clamping assembly is located above the first limit plate; each of the core clamping assemblies is connected to a group of the guide posts and can move up and down along the guide posts, and the core clamping assembly is located below the first limit plate.

[0016] 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.

[0017] 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 outside 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.

[0018] In the preferred technical solution of the above-mentioned welding clamping device, the connecting part includes multiple first connecting columns, multiple second connecting columns and multiple third connecting columns. The first limiting plate is connected to the lower connecting plate through multiple first connecting columns. The first connecting column passes through the second limiting plate and the third limiting plate, and the multiple first connecting columns are evenly distributed circumferentially; the second limiting plate is connected to the third limiting plate through multiple second connecting columns, and the multiple second connecting columns are evenly distributed circumferentially; the third limiting plate is connected to the lower connecting plate through multiple third connecting columns, and the multiple third connecting columns are evenly distributed circumferentially.

[0019] In the preferred technical solution 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. The outer wall of the clamping ring column is provided with an annular docking groove. When the clamping ring column is clamped into the first groove, the first limiting plate is clamped in 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 extends out of the first mounting hole.

[0020] In the preferred technical solution 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 limit 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 limit 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 downward to the welding plane when it moves 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.

[0021] In the preferred technical solution of the above-mentioned welding clamping device, an air inlet connector is provided on the pressure plate, a first gas channel connected to the air inlet connector is provided in the pressure plate, a second gas channel is provided on the pressure block, the first gas channel passes through the adjustment plate and is connected to the second gas channel, a plurality of third gas channels are provided in the welding pressure head, 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.

[0022] 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 limit plate 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 limit plate, 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.

[0023] 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 limit plate, 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 limit plate, and the support member is abutted against the top surface of the second cam through the second follower wheel.

[0024] 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 the vertical direction relative to the support member.

[0025] In the preferred technical solution of the above-mentioned welding and clamping device, a first guide structure is provided at the top end of the supporting member.

[0026] In the preferred technical solution of the above-mentioned welding and 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.

[0027] 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.

[0028] 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 limit plate and each second card slot corresponds to one detector. The detector can detect whether there is a winding core in the corresponding second card slot.

[0029] In the preferred technical solution of the above-mentioned welding clamping device, the number of the welding clamping mechanisms is 18.

[0030] When adopting the above technical scheme, 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, and 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, and 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 limit 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 releasing state in sequence during the rotation of the turret mechanism, so that 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 can be welded during the rotation process of the welding clamping mechanism maintaining the clamping state, thereby realizing the welding of the current collecting disk and the winding core during the transfer of 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 process of the welding clamping mechanism moving to clamp the collecting disk and the winding core and releasing 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.

[0031] 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. 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. 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 set downward, and the concave and convex surface of the second cam is set 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.

[0032] Furthermore, during the rotation of the turret mechanism, the bottom end of the welding clamping mechanism first moves upward under the limit of the second cam to move the winding core to the clamping height of the clamping state, and then the 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 pressing the collecting plate on the winding core, avoiding the collecting plate from falling off during the process of pressing down the collecting plate, and effectively improving the clamping efficiency.

[0033] 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 disc and the winding core to remain in a compressed state long enough for welding operations.

[0034] 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 that the collecting plate and the core can be welded.

[0035] Furthermore, the welding clamping mechanism includes a collecting plate clamping assembly, a core clamping assembly and a collecting plate clamping member. The collecting plate clamping member is installed on the turret mechanism and is fixed relative to the turret mechanism. The collecting plate clamping assembly and the core clamping assembly are respectively located above and below the collecting plate clamping member, 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 on the core, and the clamping state can be released. Such an arrangement can determine the height of the welding plane (that is, the height of the plane where the collecting plate is located after the collecting plate and the core are pressed) based on the horizontal plane where the collecting plate clamping member is located, which is convenient for assembling the collecting plate clamping assembly and the core clamping assembly, while also ensuring welding accuracy and thus ensuring product quality.

[0036] Furthermore, the turret mechanism is configured to include 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 sets of guide columns. The collecting plate clamping assembly and the winding core clamping assembly are simultaneously guided by the same set of guide columns, so that the collecting plate and the winding core are always arranged coaxially, which can ensure welding accuracy. At the same time, it is also convenient to position and install the collecting plate clamping assembly and the winding core clamping assembly, thereby reducing assembly errors. In addition, with this configuration, the turret mechanism can drive the welding clamping mechanism, the collecting plate, and the winding core to rotate stably during rotation, thereby preventing the winding core and the collecting plate from shifting horizontally relative to the turret mechanism during rotation.

[0037] 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 core clamping assembly to prevent the collecting plate clamping assembly and the 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 core clamping assembly and ensuring the welding quality.

[0038] 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 to 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 to the third limiting plate. This 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.

[0039] Furthermore, the collecting plate clamping part 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 clamped into the first slot and the first limiting plate is clamped 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. This 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.

[0040] 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.

[0041] Furthermore, an air passage is provided on the collecting plate pressing assembly, so that a shielding gas can be introduced into the welding hole, thereby improving welding efficiency and ensuring welding quality.

[0042] Furthermore, by setting up a gas-electric slip ring, the wiring harness and the air path are integrated and distributed, and the air 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. Its ventilation pipeline does not affect the movement of the welding clamping mechanism, reducing the difficulty of line layout and facilitating use.

[0043] Furthermore, the core pressing 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.

[0044] Furthermore, a buffer spring is provided in the core clamping assembly, so that the bearing member can move in the vertical direction relative to the support member and can adjust the height of the core, thereby ensuring that the welding clamping mechanism can always press the collecting disk and the core when in the clamping state. In addition, the buffer spring can also compensate for the vertical error 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 compress the collecting disk and the core, which is more convenient to use and has a good clamping effect.

[0045] 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.

[0046] Furthermore, a detector is correspondingly provided for each second card slot, and the detector can detect whether there is a winding core in the second card slot, thereby facilitating the control of the operation of the laser welding device.

[0047] Furthermore, the number of welding clamping mechanisms is set to 18, which is a moderate number and meets the loading, unloading and welding rhythm. The welding efficiency is high and the volume of the welding clamping device is relatively small.

[0048] In a second aspect, the present invention provides a turret welding device, comprising the above-mentioned welding clamping device.

[0049] In the preferred technical solution of the above-mentioned turret welding equipment, the turret welding equipment also includes a laser welding device, an auxiliary device and a machine platform, the machine platform includes the fixing part, the auxiliary device is installed on the machine platform, the first cam is installed on the auxiliary device and fixed relative to the auxiliary device, the laser welding device can weld the compressed collecting plate and the winding core; the auxiliary device is connected to the turret mechanism, and the auxiliary device is configured to keep the axis of the turret mechanism vertical during the rotation of the turret mechanism.

[0050] In the preferred technical solution of the above-mentioned turret welding equipment, the auxiliary device includes a support frame, a fixed ring column and a limiting mechanism, the first cam is installed on the bottom wall of the fixed ring column; the support frame is installed on the machine platform, the fixed ring column is installed on the support frame, the fixed ring column is coaxially arranged with the turret mechanism and is located above the turret mechanism, the limiting mechanism is installed on the fixed ring column, the limiting mechanism is connected to the turret mechanism and can limit the turret mechanism during the rotation of the turret mechanism so that the axis of the turret mechanism remains vertical.

[0051] In the preferred technical solution of the above-mentioned turret welding equipment, the limiting mechanism includes a plurality of limiting members, and the plurality of limiting members are evenly distributed circumferentially around the central axis of the fixed ring column. The first end of the limiting member is connected to the fixed ring column, and the second end of the limiting member extends outward along the radial direction of the fixed ring column and abuts against the outer wall of the turret mechanism.

[0052] In the preferred technical solution of the above-mentioned turret welding equipment, the limiting mechanism also includes a plurality of rollers, one roller is correspondingly provided for each limiting member and the roller is pivotally connected to the second end of the limiting member, and the second end of the limiting member abuts against the outer wall of the turret mechanism through the roller.

[0053] In the preferred technical solution of the above-mentioned turret welding equipment, a positioning step is provided at the bottom end of the fixed ring column, a limiting groove is provided on the positioning step, the limiting groove extends along the radial direction of the fixed ring column, the limiting member is connected to the fixed ring column by a bolt, the first end of the limiting member is located in the limiting groove and can move in the limiting groove along the length direction of the limiting groove, and the limiting groove can limit the movement of the limiting member in its width direction.

[0054] When adopting the above technical solution, 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, effectively improving the welding efficiency of the collecting plate, avoiding equipment shutdown, improving the production efficiency of cylindrical batteries, and thus reducing the cost of cylindrical batteries.

[0055] Furthermore, an auxiliary device is provided to limit the turret mechanism so that the axis of the turret mechanism remains vertical during rotation, and the turret mechanism rotates stably without shifting in the horizontal direction, thereby ensuring the welding accuracy of the collecting plate and the winding core and ensuring the quality of the battery.

[0056] Furthermore, the auxiliary device includes a support frame, a fixed ring column and a limiting mechanism. The fixed ring column is located above the turret mechanism. The limiting mechanism is connected to the turret mechanism and can limit the turret mechanism during the rotation of the turret mechanism so that the axis of the turret mechanism remains vertical. With this arrangement, the overall structure is simple and easy to assemble and use, and the auxiliary device limits the upper part of the turret mechanism, and its limiting effect is good.

[0057] Furthermore, the limiting mechanism includes a plurality of limiting members, which are evenly distributed circumferentially around the central axis of the fixed ring column, and the second ends of the limiting members abut against the outer wall of the turret mechanism, thereby forming a limiting area between the plurality of limiting members of the limiting mechanism, and the turret mechanism is arranged inside the limiting area, thereby forming a radial limit on the outer ring of the turret mechanism, effectively preventing the axis of the turret mechanism from shifting during rotation. The overall structure is simple and the limiting effect is good. In addition, such a setting method also makes it convenient to observe whether the limiting members are installed in place and whether they are damaged, which facilitates assembly and maintenance.

[0058] Furthermore, the second end of the limiting member abuts against the outer wall of the turret mechanism through the roller, so that the turret mechanism can rotate smoothly when the turret mechanism rotates, reducing the resistance between the turret mechanism and the limiting member.

[0059] Furthermore, a positioning step is provided at the bottom end of the fixed ring column, and a limiting groove is provided on the positioning step. The limiting piece is connected to the fixed ring column by a bolt, and the first end of the limiting piece is located in the limiting groove and can move in the limiting groove. Such a setting method can change the position of the limiting piece by adjusting the tightness of the bolt, thereby locking the limiting piece and the turret mechanism, facilitating the assembly of the limiting piece and the turret mechanism, and reducing the difficulty of assembly; in addition, the limiting groove can limit the movement of the limiting piece in the width direction of the limiting groove, thereby avoiding the movement of the limiting piece when limiting the turret mechanism, effectively improving the limiting effect of the limiting piece on the turret mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0061] FIG1 is a schematic diagram of the three-dimensional structure of a welding clamping device according to the present invention;

[0062] FIG2 is an enlarged schematic diagram of the structure of point A in FIG1 ;

[0063] FIG3 is a schematic diagram of the three-dimensional structure of the turret mechanism of the present invention;

[0064] FIG4 is a schematic diagram of a three-dimensional structure of the connection between the welding clamping mechanism, the turret mechanism, the first cam, and the second cam of the present invention, showing a pneumatic slip ring;

[0065] FIG5 is a second schematic diagram of the three-dimensional structure of the connection between the welding clamping mechanism and the turret mechanism, the first cam, and the second cam of the present invention, in which a portion of the welding clamping mechanism is hidden;

[0066] FIG6 is a top view of the current collecting plate pressing assembly of the present invention;

[0067] FIG7 is a cross-sectional view taken along the line BB in FIG6 ;

[0068] FIG8 is a front view of the current collecting plate pressing assembly of the present invention;

[0069] FIG9 is a cross-sectional view taken along the CC direction in FIG8 ;

[0070] FIG10 is a schematic diagram of the three-dimensional structure of the current collecting plate clamping member of the present invention, which shows the current collecting plate;

[0071] FIG11 is a top view of the current collecting plate clamp of the present invention, showing the current collecting plate;

[0072] FIG12 is a cross-sectional view taken along the AA direction in FIG11 ;

[0073] 13 is a schematic diagram of the three-dimensional structure of the core pressing assembly and the core of the present invention;

[0074] 14 is a top view of the core pressing assembly and the core of the present invention;

[0075] FIG15 is a cross-sectional view taken along the DD direction in FIG14 ;

[0076] FIG16 is a schematic diagram of the three-dimensional structure of the core pressing assembly of the present invention;

[0077] FIG17 is a schematic diagram of the three-dimensional structure of the first cam and the second cam of the present invention;

[0078] FIG18 is a top view of the first cam and the second cam of the present invention when in use;

[0079] FIG19 is a schematic diagram of the three-dimensional structure of the turret welding equipment of the present invention;

[0080] 20 is a schematic diagram of the three-dimensional structure of the auxiliary device and the welding clamping device connected to the present invention;

[0081] FIG21 is an enlarged structural diagram of point B in FIG20;

[0082] FIG22 is a schematic diagram of the three-dimensional structure of the auxiliary device connected to the turret mechanism of the present invention, in which part of the turret mechanism is hidden;

[0083] FIG23 is an enlarged structural diagram of point C in FIG22;

[0084] 24 is a top view of the auxiliary device of the present invention connected to the turret mechanism;

[0085] FIG25 is a cross-sectional view taken along the EE direction in FIG24;

[0086] FIG26 is an enlarged structural diagram of point D in FIG25 .

[0087] List of reference numerals:

[0088] 1. Welding clamping device;

[0089] 11. Fixing parts;

[0090] 12. Turret mechanism; 121. Upper connecting ring; 122. First limiting plate; 1221. First retaining slot; 123. Second limiting plate; 1231. Second retaining slot; 124. Third limiting plate; 1241. Through hole; 125. Lower connecting plate; 126. Guide post; 127. Connecting member; 1271. First connecting post; 1272. Second connecting post; 1273. Third connecting post; 128. Limiting cover; 129. Driving member;

[0091] 13. Welding and clamping mechanism; 131. Collecting plate clamping assembly; 1311. Pressing plate; 13111. 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. Collecting plate clamping member; 1321. Clamping ring column; 13211, first mounting hole; 13212, docking slot; 1322, pressing column; 1323, return 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;

[0092] 14. First cam; 141. First horizontal portion; 142. First transition portion; 143. Second horizontal portion; 144. Second transition portion;

[0093] 15. Second cam; 151. Third horizontal portion; 152. Third transition portion; 153. Fourth horizontal portion; 154. Fourth transition portion;

[0094] 16. Gas-electric slip ring; 161. Fixed part; 162. Rotating part; 163. Air outlet; 164. Air inlet;

[0095] 17. Detector; 18. Collecting plate; 19. Winding core; 20. Winding core support cup;

[0096] 2. Laser welding device; 3. Machine;

[0097] 4. Auxiliary device; 41. Support frame; 42. Fixed ring column; 421. Positioning step; 422. Limiting groove; 43. Limiting mechanism; 431. Limiting member; 432. Bolt; 433. Roller. DETAILED DESCRIPTION

[0098] 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 scope of protection of the present invention.

[0099] It should be noted that in the description of the present invention, terms such as "upper," "lower," "inner," "outer," "top," and "bottom" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0100] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "installed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to direct connections or indirect connections via other components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0101] Specifically, referring to Figures 1, 2, 4, and 5 simultaneously, the welding clamping device 1 of the present invention includes 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 mount the turret mechanism 12, the first cam 14, the second cam 15, and the welding clamping mechanism 13. The specific structure of the fixing member 11 is not limited. Exemplarily, the fixing member 11 is a machine table or a mounting frame.

[0102] Among them, the first cam 14 and the second cam 15 are installed on the fixing part 11 and are fixed relative to the fixing part 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 part 11 and can rotate around the vertical axis relative to the fixing part 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 in contact with the first cam 14 and the second cam 15.

[0103] 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 the top and bottom ends of the welding clamping mechanism 13 move relative to each other under the limit of the first cam 14 and the second cam 15, and press the collecting plate 18 on the end face of the winding core 19, or move the top and bottom ends of the welding clamping mechanism 13 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.

[0104] 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 mechanism 13 to rotate, the top and bottom ends of the welding clamping mechanism 13 are respectively rotated along the first cam 14 and the second cam 15, so that the welding clamping mechanism 13 rotates with the turret mechanism. During the rotation of 12, it alternates between a clamping state and a releasing state. When the welding clamping mechanism 13 is in a clamping state, it can press the collecting plate 18 onto the end face of the winding core 19. Therefore, the welding clamping device 1 of the present invention can be combined with a laser welding device to weld the collecting plate 18 and the winding core 19 when the welding clamping mechanism 13 is in a clamping state. The 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 collecting plate 18 and the production efficiency of the cylindrical battery, and thereby reducing the cost of the cylindrical battery.

[0105] In addition, during the process of moving the welding clamping mechanism 13 to clamp and release the current collecting plate 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 plate 18 and the winding core 19 to maintain a coaxial arrangement, effectively improving the welding quality.

[0106] In a preferred embodiment, please refer to Figures 4, 5, 17 and 18 at the same time. The top of the welding clamping mechanism 13 abuts against the bottom surface of the first cam 14. 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 connected end to end in a ring shape, 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. The second cam 15 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 form a ring. The top surface of the third horizontal portion 151 is higher than the top surface of the fourth horizontal portion 153. 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 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, respectively.

[0107] 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.

[0108] In a further preferred embodiment, please continue to refer to Figures 17 and 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. Specifically, as shown in Figure 18, when the turret mechanism 12 rotates 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.

[0109] 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 staggered 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 to 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 coaxial.

[0110] 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.

[0111] 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°.

[0112] This arrangement ensures that the angle of the cam corresponding to the collecting disc 18 and the winding core 19 in the compressed state is 180°, which enables the collecting disc 18 and the winding core 19 to remain in the compressed state long enough to facilitate welding operations.

[0113] 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°.

[0114] 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 actual 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 form in the above embodiment should not limit the scope of protection 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 long enough time to ensure the welding quality, and can also make the non-compression state last for a long enough time to facilitate loading and unloading, thereby improving welding efficiency.

[0115] In a preferred embodiment, referring 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°.

[0116] 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.

[0117] Although in the above embodiment, the concave-convex surface of the first cam 14 is arranged downward and the concave-convex surface of the second cam 15 is arranged upward, and the top and bottom ends of the welding clamping mechanism 13 respectively abut against the bottom surface of the first cam 14 and the top surface of the second cam 15, this does not limit the scope of protection of the present invention. In actual applications, those skilled in the art may 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 arranged upward, and the top and bottom ends of the welding clamping mechanism 13 abut against the top surface of the first cam 14 and the top surface of the second cam 15, respectively. Alternatively, the concave-convex surfaces of the first cam 14 and the second cam 15 may be both arranged downward, and the top and bottom ends of the welding clamping mechanism 13 abut against the bottom surface of the first cam 14 and the bottom surface of the second cam 15, respectively; and so on. Such specific arrangements of the first cam 14 and the second cam 15 do not deviate from the basic principles of the present invention and should be within the scope of protection of the present invention.

[0118] 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.

[0119] In a preferred embodiment, please refer to FIG. 2 , FIG. 4 and FIG. 5 simultaneously, the welding pressing mechanism 13 includes a collecting plate pressing assembly 131 , a winding core pressing assembly 133 and a collecting plate clamping member 132 .

[0120] Among them, 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 pressing assembly 131 and the winding core pressing 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 pressing assembly 131 and the winding core pressing 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. During the rotation of the welding clamping mechanism 13, 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.

[0121] 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. The collecting plate clamping assembly 131 and the winding core clamping assembly 133 can move in the vertical direction relative to the turret mechanism 12, so that when the welding clamping mechanism 13 is clamping, it can determine the height of the collecting plate 18 after clamping (that is, the height of the welding plane) based on the horizontal plane where the collecting plate clamping piece 132 is located, which is convenient for 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.

[0122] In another embodiment, the welding clamping mechanism 13 includes a collecting plate adsorption and clamping assembly and a winding core clamping assembly distributed from top to bottom. The 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 collecting plate adsorption and clamping assembly can adsorb the 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 collecting plate adsorption and clamping assembly can drive the 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.

[0123] 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 relative to each other 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, the two ends of the welding clamping mechanism 13 can be pressed against the collecting plate 18 and the winding core 19 to perform the welding operation. In actual 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 embodiment should not constitute a limitation on the scope of protection of the present invention.

[0124] In a preferred embodiment, please refer to Figures 3 to 5 at the same time. 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 stepper motor) and multiple sets of guide columns 126.

[0125] 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 each other from top to bottom, and are all coaxially arranged with the first cam 14 and the second cam 15. The guide column 126 vertically passes through 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.

[0126] 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.

[0127] The first limiting plate 122 is evenly provided with a plurality of first slots 1221 along its circumference for securing the collecting plate clamping member 132, 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 along its circumference for accommodating the core clamping assembly 133. 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.

[0128] Each collector plate clamping assembly 131 is connected to a set of guide posts 126 and can move up and down along them. The collector plate clamping assembly 131 is located above the first limiting plate 122. Each core clamping assembly 133 is connected to a set of guide posts 126 and can move up and down along them. The core clamping assembly 133 is located below the first limiting plate 122. The same set of guide posts 126 guides both the collector plate clamping assembly 131 and the core clamping assembly 133, ensuring that the collector plate 18 and the core 19 remain coaxial during their movement, helping to ensure welding accuracy and quality.

[0129] 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 multiple groups of guide columns 126. Its structure is simple, and it is convenient to assemble the collecting plate clamping assembly 131, the collecting plate clamping member 132 and the 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 core clamping assembly 133 to rotate, thereby improving the stability of the rotation and effectively avoiding the horizontal displacement of the core 19 and the collecting plate 18 relative to the turret mechanism 12 during the rotation process.

[0130] In a preferred embodiment, referring to Figures 4 and 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.

[0131] 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. They have a simple structure, are easy to manufacture, and can reduce the weight of the turret mechanism 12, thereby helping to improve the rotation efficiency of the turret mechanism 12 and reduce power consumption.

[0132] In a preferred embodiment, there are at least two guide posts 126 in each group of guide posts 126. The two guide posts 126 simultaneously guide and connect the collecting disc clamping assembly 131 and the winding core clamping assembly 133. This prevents the collecting disc clamping assembly 131 and the winding core clamping assembly 133 from shifting horizontally relative to the turret mechanism 12 when the collecting disc clamping assembly 131 and the winding core clamping assembly 133 are rotated. This ensures that the collecting disc 18 and the winding core 19 remain coaxially arranged, thereby improving welding accuracy and product quality.

[0133] Exemplarily, the two guide posts 126 in each group of guide posts 126 are spaced apart and distributed along the radial direction of the turret mechanism 12 .

[0134] Exemplarily, the two guide posts 126 in each group of guide posts 126 are spaced apart along the circumference of the turret mechanism 12 .

[0135] In a preferred embodiment, referring to both Figures 1 and 2 , the turret mechanism 12 further includes an annular cylindrical limiting cover 128. The limiting cover 128 covers 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 sidewall of the third limiting plate 124. The collecting plate clamp 132 abuts against the inner wall of the limiting cover 128, and the core cup 20 carrying the winding core 19, located in the second slot 1231, abuts against the limiting cover 128. The limiting cover 128 secures the collecting plate clamp 132 within the first slot 1221 and the core cup 20 carrying the winding core 19 within the second slot 1231, thereby preventing the collecting plate clamp 132 and the winding core 19 from moving outward due to centrifugal force during rotation, further ensuring that the collecting plate 18 and the winding core 19 remain coaxial.

[0136] In a preferred embodiment, referring to FIG. 3 and FIG. 5 , the connecting member 127 includes a plurality of first connecting pillars 1271 , a plurality of second connecting pillars 1272 , and a plurality of third connecting pillars 1273 .

[0137] The first limiting plate 122 is connected to the lower connecting plate 125 via a plurality of first connecting posts 1271. The first connecting posts 1271 extend through the second limiting plate 123 and the third limiting plate 124 and are evenly distributed around the circumference. The first connecting posts 1271 directly connect the lower connecting plate 125 to the first limiting plate 122. The plurality of first connecting posts 1271 provide multi-directional support for the first limiting plate 122, ensuring stability and enhancing connection strength.

[0138] The second limiting plate 123 is connected to the third limiting plate 124 via a plurality of second connecting posts 1272, which are evenly distributed around the circumference. The second connecting posts 1272 connect the second limiting plate 123 and the third limiting plate 124, and the plurality of second connecting posts 1272 support the second limiting plate 123 in multiple directions, thereby improving the connection strength between the second limiting plate 123 and the third limiting plate 124.

[0139] The third limiting plate 124 is connected to the lower connecting plate 125 via a plurality of third connecting posts 1273, which are evenly distributed around the circumference. The third connecting posts 1273 connect the third limiting plate 124 to the lower connecting plate 125, and the even distribution of the third connecting posts 1273 around the circumference stabilizes the third limiting plate 124 and improves the connection strength between the third limiting plate 124 and the lower connecting plate 125.

[0140] 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 parts, this setting method has higher connection stability, can keep the turret mechanism 12 balanced and stable, improve the bearing capacity of each layer structure of the turret mechanism 12, and is more convenient to use.

[0141] In a preferred embodiment, referring to FIG. 5 to FIG. 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 .

[0142] 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 disc 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 respectively abut against the bottom surface of the pressure plate 1311 and the top surface of the second limiting plate 123, the pressure plate 1311 abuts 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 make the collecting disc clamping assembly 131 keep moving vertically. The tightening assembly 131 moves smoothly along the first cam 14, reducing 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, so that 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. When the welding pressure head 1315 moves vertically downward, it can abut against the collecting disc 18 located in the collecting disc clamp 132 and press the collecting disc 18 downward to the welding plane; a welding hole 1316 is provided on the collecting disc 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 through the laser to weld the collecting disc 18 to the winding core 19.

[0143] The 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. Its structure is simple and convenient for production, manufacturing and assembly. In addition, such a configuration can ensure the assembly accuracy of the collecting disc clamping assembly 131 by controlling the thickness of the adjustment plate 1312, so that when the assembled collecting disc clamping assembly 131 is in the clamping state, the collecting disc 18 is always at the height of the welding plane, thereby ensuring welding accuracy. The welding plane in the present invention is a horizontal plane at the welding height determined before assembly. When all welding clamping mechanisms 13 press the collecting disc 18 onto the winding core 19, the collecting disc 18 after clamping is at the height of the welding plane. Therefore, the processing accuracy of the collecting disc clamping assembly 131 and the collecting disc clamping member 132 can be ensured to improve welding accuracy and thereby ensure product quality.

[0144] In a preferred embodiment, please refer to Figures 7 and 9 at the same time. An air inlet connector 13111 is provided on the pressure plate 1311, and a first gas channel 13112 connected to the air inlet connector 13111 is provided in the pressure plate 1311. A second gas channel 13131 is provided on the pressure block 1313, and the first gas channel 13112 passes through the adjustment plate 1312 and is connected to the second gas channel 13131. A plurality of third gas channels 13151 are provided in the welding pressure head 1315, and the plurality of third gas channels 13151 are evenly distributed circumferentially, and one end of the third gas channel 13151 passes through the inner wall of the welding pressure head 1315 and is connected to the welding hole 1316, and the second gas channel 13131 is connected to the third gas channel 13151.

[0145] By providing a first gas channel 13112 , a second gas channel 13131 and a third gas channel 13151 that are connected in the collecting plate pressing assembly 131 , shielding gas can be blown into the welding hole 1316 to ensure welding quality.

[0146] In a preferred embodiment, please refer to Figures 1 and 4 at the same time. 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 part 161 of the gas-electric slip ring 16 is connected to the fixing part 11, and the rotating part 162 of the gas-electric slip ring 16 is connected to the first limiting plate 122 and can rotate relative to the fixed part 161. The air outlet end 163 of the rotating part 162 is located between the bottom surface of the first cam 14 and the top surface of the first limiting plate 122. The multiple air outlet ends 163 of the rotating part 162 are respectively connected to the multiple air inlet joints 13111 through connecting pipes, and the multiple air inlet ends 164 of the fixed part 161 are all connected to a protective air source, and the multiple air inlet ends 164 are respectively connected to the multiple air outlet ends 163.

[0147] By providing the gas-electric slip ring 16, the gas path and the wiring harness are arranged reasonably, which reduces the difficulty of line arrangement and facilitates use.

[0148] In a preferred embodiment, please refer to Figures 5, 10, 11 and 12 at the same time. 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. The outer wall of the clamping ring column 1321 is provided with an annular docking groove 13212. When the clamping ring column 1321 is clamped into the first groove 1221, the first limiting plate 122 is clamped 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, so that 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.

[0149] The inner wall of the clamping ring column 1321 is provided with a plurality of first mounting holes 13211 along its radial direction, and the number of first mounting holes 13211 is evenly distributed around the circumference. A return spring 1323 is installed in each of the first mounting holes 13211. A clamping column 1322 is located within the first mounting hole 13211 and is connected to the return spring 1323. The clamping column 1322 extends radially toward the center of the clamping ring column 1321 and extends out of the first mounting hole 13211. The return spring 1323 enables the clamping ring column 1321 to move within the first mounting hole 13211, thereby clamping the collecting disc 18 and enabling the collecting disc 18 to move downward after receiving force, thereby pressing the collecting disc 18 against the end surface of the winding core 19.

[0150] 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.

[0151] 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 downward movement of the collecting plate 18 by pressing the abutting column 1322 radially outward, thereby allowing the collecting plate 18 to move downward smoothly.

[0152] 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 column is located above the top surface of the second clamping column, the plurality of first clamping columns are evenly distributed circumferentially, and 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 collecting plate 18 is provided with an avoidance hole at a position corresponding to the first clamping column. When the collecting plate clamping member 132 clamps the collecting plate 18, the first clamping column is located in the avoidance hole, and the bottom surface of the collecting plate 18 abuts against the top surface of the second clamping column.

[0153] By staggering the first clamping column and the second clamping column in height and circumferential direction, the collecting plate 18 can be limited. 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.

[0154] In a preferred embodiment, referring to FIG. 5 and FIG. 13 to FIG. 16 , the core pressing assembly 133 includes a support member 1331 , a bearing member 1332 and a second power spring 1333 .

[0155] 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, which can avoid scratches on the outer ring electrode of the core 19 during assembly and rotation, so as to ensure the quality of the battery.

[0156] 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 limit plate 124. The two ends of the second power spring 1333 are respectively in contact with the top surface of the support member 1331 and the second limit 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, reducing 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.

[0157] The core pressing assembly 133 includes a support member 1331 , a bearing member 1332 , a second power spring 1333 and a second follower wheel 1334 . The structure is simple and convenient for production, manufacturing and assembly.

[0158] In a preferred embodiment, please continue to refer to Figure 15, the core clamping assembly 133 also includes a buffer spring 1335, and 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 supporting member 1332, and the other end of the buffer spring 1335 extends out of the supporting member 1332 and is installed in the second mounting hole 13311. The bottom end of the supporting member 1332 is located in the second mounting hole 13311, and the supporting member 1332 can move in the vertical direction relative to the support member 1331. By setting a buffer spring 1335, the support member 1332 can fine-tune its height in the vertical direction, and can ensure that the collecting plate 18 and the winding core 19 of the welding clamping mechanism 13 are always in a clamped state under the clamping state, and can compensate for the vibration caused by the rotation of the turret mechanism 12, the processing error of the winding core clamping component 133, and the error in the vertical direction caused by the assembly error, so that the winding core clamping component 133 can perfectly cooperate with the collecting plate clamping component 131 to realize the compression of the collecting plate 18 and the winding core 19, which is more convenient to use.

[0159] In a preferred embodiment, referring to Figure 16 , a first guide structure 13321 is provided at the top of the carrier 1332. The first guide structure 13321 facilitates inserting the core cup 20 onto the carrier 1332, thereby facilitating assembly of the core 19.

[0160] In one embodiment, the first guide structure 13321 is a guide slope.

[0161] In another embodiment, the first guiding structure 13321 is a guiding arc surface.

[0162] In a preferred embodiment, referring to FIG. 16 , the core pressing assembly 133 further includes two limiting plates 1336 mounted on the support member 1331 and located on either side of the carrier 1332. The limiting plates 1336 can limit the core cup 20, thereby preventing the core cup 20 from moving horizontally during rotation.

[0163] In a preferred embodiment, please continue to refer to Figure 16 , a second guide structure 13361 is provided at the top of the limiting plate 1336. The second guide structure 13361 facilitates inserting the core cup 20 onto the carrier 1332, thereby facilitating assembly of the core 19.

[0164] In one embodiment, the second guide structure 13361 is a guide slope.

[0165] In another embodiment, the second guiding structure 13361 is a guiding arc surface.

[0166] In a preferred embodiment, please refer to Figures 1 to 3 at the same time. The welding clamping device 1 of the present invention also includes a detector 17. There are multiple detectors 17. Multiple detectors 17 are installed on the second limit 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.

[0167] A detector 17 is correspondingly provided for each second slot 1231 to detect whether a winding core 19 exists in the second slot 1231 , so as to facilitate connection with a control system and thus facilitate control of the operation of the laser welding device.

[0168] Exemplarily, the detector 17 is a photoelectric sensor.

[0169] In a preferred embodiment, the number of the welding and clamping mechanisms 13 is 18.

[0170] Setting the number of welding clamping mechanisms 13 to 18 can meet the requirements of normal loading (adding new collecting plates 18 and winding cores 19), unloading (removing the welded winding cores 19), and welding cycle time (welding time), resulting in high automated welding efficiency. Furthermore, the turret mechanism 12 and welding clamping mechanism 13 corresponding to the 18 welding clamping mechanisms 13 are relatively small in size, thereby reducing the volume of the overall welding clamping device 1 and facilitating manufacturing, assembly, and use.

[0171] In another embodiment, the number of the welding clamping mechanisms 13 may also be set to 20.

[0172] 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 form in the above embodiment should not limit the scope of protection of the present invention.

[0173] 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.

[0174] In addition, the present invention also protects a turret welding device, which includes the above-mentioned welding clamping device 1.

[0175] Specifically, referring to FIG19 , the turret welding equipment of the present invention includes a laser welding device 2, a welding clamping device 1, an auxiliary device 4, and a machine platform 3, wherein the machine platform 3 includes a fixing member 11. The machine platform 3 is used to mount the welding clamping device 1 and the auxiliary device 4. The specific structure of the machine platform 3 is not limited. For example, the machine platform 3 includes a mounting platform, a fixing member 11 disposed on the mounting platform, and a support frame located below the mounting platform. The support frame is connected to the mounting platform to support the mounting platform and maintain stability.

[0176] The welding clamping device 1 and the auxiliary device 4 are installed on the machine platform 3 . Specifically, the first cam 14 of the welding clamping device 1 is installed on the auxiliary device 4 and is fixed relative to the auxiliary device 4 .

[0177] The laser welding device 2 is capable of welding the compressed collecting disc 18 and the winding core 19 at the welding station. The welding station is a set area of ​​the turret mechanism 12 in the circumferential direction, and the laser welding device 2 is installed above this area. The turret mechanism 12 drives the welding clamping mechanism 13 to rotate, thereby moving the compressed collecting disc 18 and the winding core 19 to the welding station, so as to facilitate welding of the collecting disc 18 and the winding core 19. The laser welding device 2 is used to weld the collecting disc 18 and the winding core 19 moved to the welding station, thereby welding the two during the transportation of the winding core 19 and the collecting disc 18 to improve welding efficiency.

[0178] The auxiliary device 4 is connected to the turret mechanism 12 and is configured to maintain the axis of the turret mechanism 12 vertically during its rotation. The auxiliary device 4 is used to limit the turret mechanism 12 so that its axis always remains vertical, preventing the turret mechanism 12 from tilting during rotation and ensuring stable rotation of the turret mechanism 12. This ensures that the compressed collecting plate 18 is always at a preset height, thereby ensuring the welding accuracy of the collecting plate and the winding core, improving the welding quality of the collecting plate, and improving product quality.

[0179] The turret welding equipment of the present invention sets an auxiliary device 4 to limit the turret mechanism 12, so that the turret mechanism 12 does not deviate during the rotation process and remains stable, so that the collecting plate 18 in the compressed state can always be at the welding height during the rotation process. The laser welding device 2 can firmly weld the collecting plate 18 to the winding core 19, improve the welding quality of the collecting plate 18, and ensure product quality.

[0180] In one embodiment, the laser welding device 2 is installed via a support frame and is located on one side of the machine platform 3 .

[0181] In another embodiment, the laser welding device 2 is installed on a machine table 3 .

[0182] It should be noted that the present invention does not impose any restrictions on the installation method and installation position of the laser welding device 2. As long as the laser welding device 2 can weld the collecting plate 18 and the winding core 19 at the welding station, those skilled in the art can determine the specific installation position and installation method of the laser welding device 2 in actual applications. The specific implementation of the above embodiment should not limit the scope of protection of the present invention.

[0183] In a preferred embodiment, please refer to Figures 20 to 23 simultaneously. The auxiliary device 4 includes a support frame 41, a fixed ring column 42 and a limiting mechanism 43. The first cam 14 is installed on the bottom wall of the fixed ring column 42.

[0184] Among them, the support frame 41 is installed on the machine table 3, the fixed ring column 42 is installed on the support frame 41, the fixed ring column 42 is coaxially arranged with the turret mechanism 12 and is located above the turret mechanism 12, and the limiting mechanism 43 is installed on the fixed ring column 42. The limiting mechanism 43 is connected to the turret mechanism 12 and can limit the turret mechanism 12 during the rotation of the turret mechanism 12 so that the axis of the turret mechanism 12 remains vertical.

[0185] The auxiliary device 4 includes a support frame 41, a fixed ring column 42 and a limiting mechanism 43. The fixed ring column 42 is located above the turret mechanism 12. The limiting mechanism 43 is connected to the fixed ring column 42 and is also connected to the turret mechanism 12, so that the axis of the turret mechanism 12 can remain vertical when the turret mechanism 12 rotates. By setting the fixed ring column 42 above the turret mechanism 12, the limiting mechanism 43 limits the upper part of the turret mechanism 12, thereby improving the stability of the turret mechanism 12, and its limiting effect is better, and it is convenient to assemble the auxiliary device 4 with the turret mechanism 12.

[0186] Although the fixing ring column 42 is installed above the turret mechanism 12 in the preferred embodiment described above, this does not limit the scope of protection of the present invention. In actual applications, those skilled in the art may also install the fixing ring column 42 in other locations, as long as the limiting mechanism 43 can limit the turret mechanism 12 to maintain its axis vertical during rotation. For example, the bottom end of the fixing ring column 42 may extend into the interior of the turret mechanism 12, and the limiting mechanism 43 can limit the turret mechanism 12 within the turret mechanism 12. Such adjustments and changes to the specific structure of the auxiliary device 4 do not deviate from the basic principles of the present invention and are intended to be within the scope of protection of the present invention.

[0187] In a preferred embodiment, referring to both Figures 22 and 23 , the limiting mechanism 43 includes a plurality of limiting members 431, which are evenly distributed circumferentially around the central axis of the fixed ring column 42. The first ends of the limiting members 431 are connected to the fixed ring column 42, and the second ends of the limiting members 431 extend outwardly in the radial direction of the fixed ring column 42 and abut against the outer wall of the turret mechanism 12. It should be noted that the abutment between the limiting members 431 and the turret mechanism 12 is the contact between the limiting members 431 and the turret mechanism 12.

[0188] The limiting mechanism 43 includes multiple limiting members 431, and the second ends of the multiple limiting members 431 abut against the outer wall of the turret mechanism 12, so that the limiting mechanism 43 radially limits the outer ring of the turret mechanism 12, and its limiting effect is good. In addition, setting the limiting member 431 on the outside of the turret mechanism 12 also facilitates the assembly of the auxiliary device 4 and the turret mechanism 12, and also facilitates determining whether the limiting member 431 is installed in place, and it is also convenient for maintenance when the limiting member 431 is damaged.

[0189] In another embodiment, the limiting mechanism 43 includes a plurality of limiting members 431, which are evenly distributed circumferentially around the central axis of the fixed ring column 42. The first ends of the limiting members 431 are connected to the fixed ring column 42, and the second ends of the limiting members 431 extend outwardly in the radial direction of the fixed ring column 42. The second ends of the limiting members 431 are located inside the turret mechanism 12 and abut against the inner wall of the turret mechanism 12. The limiting members 431 abut against the inner wall of the turret mechanism 12, thereby limiting the position of the turret mechanism 12.

[0190] In another embodiment, the limiting mechanism 43 includes a limiting collar, which is fixedly connected to the fixing ring column and is sleeved on the outside of the turret mechanism 12 . The inner wall of the limiting collar is seamlessly fitted with the outer wall of the turret mechanism 12 .

[0191] It should be noted that the present invention does not impose any restrictions on the specific structure of the limiting mechanism 43. In actual applications, those skilled in the art can set the specific structure of the limiting mechanism 43 according to actual needs. The specific implementation form of the limiting mechanism 43 in the above-mentioned specific embodiment should not limit the scope of protection of the present invention. Of course, it is preferred to set the limiting mechanism 43 as a plurality of limiting members 431, and make the second end of the limiting member 431 abut against the outer wall of the turret mechanism 12, which is convenient for assembly and use. The processing precision of the limiting mechanism 43 is low, which is convenient for production and manufacturing.

[0192] In a preferred embodiment, please refer to Figures 23 to 26 at the same time. The limiting mechanism 43 also includes a plurality of rollers 433, each limiting member 431 is correspondingly provided with a roller 433, and the roller 433 is pivotally connected to the second end of the limiting member 431, and the second end of the limiting member 431 is abutted against the outer wall of the turret mechanism 12 through the roller 433.

[0193] The second end of the limiting member 431 is pivotally connected to the roller 433, so that the limiting member 431 abuts against the turret mechanism 12 through the roller 433. When the turret mechanism 12 rotates, the turret mechanism 12 can rotate smoothly, reducing the resistance between the turret mechanism 12 and the limiting member 431.

[0194] In a preferred embodiment, please refer to Figures 23, 25 and 26 at the same time. A positioning step 421 is provided at the bottom end of the fixed ring column 42, and a limiting groove 422 is provided on the positioning step 421. The limiting groove 422 extends along the radial direction of the fixed ring column 42. The limiting member 431 is connected to the fixed ring column 42 by a bolt 432. The first end of the limiting member 431 is located in the limiting groove 422 and can move in the limiting groove 422 along the length direction of the limiting groove 422. The limiting groove 422 can limit the movement of the limiting member 431 in its width direction.

[0195] The locking cam 431 is then engaged with the locking cam 432 to lock the locking cam 431 in place.

[0196] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection 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; 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.

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 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 plate pressing assembly and the winding core pressing assembly are both connected to the turret mechanism and can be respectively When the turret mechanism moves in the vertical direction, the collecting plate clamping assembly and the winding core clamping assembly are respectively located above and below the collecting plate clamping member, the collecting plate clamping assembly abuts against the bottom surface of the first cam, and the winding core clamping assembly abuts against the top surface of the second cam. The winding core clamping 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 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.

5. The welding clamping device according to claim 4, 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. 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.

6. The welding clamping device according to claim 5, 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.

7. The welding clamping device according to claim 5, 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. The inner wall of the clamping ring column is provided with first mounting holes along its radial direction, and the number of the first mounting holes is There are multiple and circumferentially evenly distributed, 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 extends out of the first mounting hole.

8. The welding clamping device according to claim 5, 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.

9. The welding clamping device according to claim 8, 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.

10. The welding clamping device according to claim 9, 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.

11. The welding clamping device according to claim 5, 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.

12. The welding clamping device according to claim 11, 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, and one end of the buffer spring is mounted on the bearing member. The other end of the buffer spring extends out of the bearing member and is installed in the second installation hole. The bottom end of the bearing member is located in the second installation hole, and the bearing member can move in the vertical direction relative to the support member.

13. The welding clamping device according to claim 11, 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.

14. The welding clamping device according to claim 5, 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.

15. The welding clamping device according to any one of claims 1 to 14, characterized in that: The number of the welding clamping mechanisms is 18.

16. A turret welding device, characterized in that: A welding clamping device comprising the welding clamping device according to any one of claims 1 to 15.

17. The turret welding equipment according to claim 16, characterized in that: It also includes a laser welding device, an auxiliary device and a machine platform, wherein the machine platform includes the fixing member, the auxiliary device is mounted on the machine platform, the first cam is mounted on the auxiliary device and is fixed relative to the auxiliary device, The laser welding device can weld the compressed collector plate and the winding core; The auxiliary device is connected to the turret mechanism, and the auxiliary device is configured to keep the axis of the turret mechanism vertical during the rotation of the turret mechanism.

18. The turret welding equipment according to claim 17, characterized in that: The auxiliary device comprises a support frame, a fixed ring column and a limiting mechanism, and the first cam is mounted on the bottom wall of the fixed ring column; The support frame is installed on the machine platform, the fixed ring column is installed on the support frame, the fixed ring column is coaxially arranged with the turret mechanism and is located above the turret mechanism, the limiting mechanism is installed on the fixed ring column, the limiting mechanism is connected to the turret mechanism and can limit the turret mechanism during the rotation of the turret mechanism so that the axis of the turret mechanism remains vertical.

19. The turret welding equipment according to claim 18, characterized in that: The limiting mechanism comprises a plurality of limiting members, and the plurality of limiting members are evenly distributed circumferentially around the central axis of the fixed ring column. The first end of the limiting member is connected to the fixing ring column, and the second end of the limiting member extends outwardly along the radial direction of the fixing ring column and abuts against the outer wall of the turret mechanism.

20. The turret welding equipment according to claim 19, characterized in that: A positioning step is provided at the bottom end of the fixing ring column, and a limiting groove is provided on the positioning step. The limiting groove extends along the radial direction of the fixing ring column. The limiting member is connected to the fixing ring column by bolts. The first end of the limiting member is located in the limiting groove and can move in the limiting groove along the length direction of the limiting groove. The limiting groove can limit the movement of the limiting member in its width direction.

Images