Electrode driving device based on rotary table and laser-induced sintering processing equipment

Abstract

The utility model provides an electrode driving device based on a rotary table and laser-induced sintering processing equipment, the device comprises a rotary table module and an electrode driving module, and the rotary table module comprises a rotary driving mechanism and a plurality of bearing tables; a machining station is arranged on the rotating path of the rotating driving mechanism. The electrode driving module comprises a plurality of electrode driving mechanisms connected to the bearing table and an end face cam. The end face cam is an arc-shaped piece and at least comprises a first part, a second part and a third part which are connected in sequence. The first part gradually rises and is positioned in front of a processing station; the second part is positioned at a processing station without changing the height; the third part is positioned behind the processing station after the height is gradually reduced; the electrode driving mechanism comprises a mounting base connected to the bearing table, an electrode mounting frame connected to the mounting base, an electrode and a cam roller directly connected with or indirectly in contact with the electrode mounting frame. The electrode can complete the ascending action in the rotating process of the bearing table, and the working efficiency can be improved.

Description

Technical Field

[0001] The present application belongs to the field of electrode driving technology, and specifically, relates to an electrode driving device based on a turntable and a laser induced sintering processing equipment. Background Art

[0002] At present, in some fields, when processing or other processing of workpieces, it is necessary to place the workpiece on a turntable so that the workpiece can pass through multiple stations in sequence under the drive of the turntable for corresponding operations. At the same time, for the needs of inspection or some processing, when the turntable passes through a certain station, it is necessary to contact the workpiece with an electrode so as to apply voltage so that current passes through the workpiece, and the electrode contacts the back of the workpiece.

[0003] Most of the existing technical solutions are to set a liftable electrode at the corresponding station. When the workpiece moves to the station, the electrode is driven by the actuator to rise until it contacts the workpiece. This technical solution is time-consuming because the electrode can only be driven to rise after the workpiece is transferred to the processing station. Especially in the photovoltaic field, when back contact cells need to be tested or laser-induced sintering is required, the production capacity requirements are higher. Utility Model Content

[0004] In view of this, the present application provides an electrode driving device based on a turntable, comprising a turntable module, the turntable module comprising a rotation driving mechanism and a plurality of carriers connected to the rotation driving mechanism along a circumferential direction, the rotation driving mechanism being used to drive the plurality of carriers to rotate simultaneously; a processing station is provided on the rotation path of the rotation driving mechanism, the rotation driving mechanism drives the plurality of carriers to pass through the processing stations respectively, the electrode driving device based on the turntable further comprises an electrode driving module, the electrode driving module comprising a plurality of electrode driving mechanisms connected to the bottom of the carrier and an end face cam located below the electrode driving mechanism, one of the carriers being connected to one of the electrode driving mechanisms;

[0005] The end face cam is an arc-shaped part, and along the rotation direction of the rotary drive mechanism, the end face cam at least includes a first part, a second part, and a third part connected in sequence; the first part gradually increases in height and is located before the processing station; the second part remains unchanged in height and is located at the processing station; the third part gradually decreases in height and is located after the processing station;

[0006] The electrode driving mechanism comprises a mounting seat fixedly connected to the supporting platform, an electrode mounting frame slidably connected to the mounting seat in a vertical direction, an electrode connected to the top of the electrode mounting frame, and a cam roller directly connected to or indirectly in contact with the electrode mounting frame, wherein the cam roller is located below the mounting seat so that the cam roller drives the electrode on the electrode mounting frame to rise during the process of moving along an arc track on the end face cam surface;

[0007] The support platform is provided with a hollow portion for the electrode to pass through.

[0008] Furthermore, the cam roller is in indirect contact with the electrode mounting frame, and the electrode driving mechanism also includes a cam rocker and a driving member connected to the electrode mounting frame, the cam roller is rotatably connected to one end of the cam rocker, and the other end of the cam rocker is hinged on the mounting seat; the driving member is located above the cam rocker, and when the cam roller moves on the end face cam surface, the cam roller moves upward to drive the cam rocker to move and then push the driving member upward to push the electrode mounting frame upward.

[0009] Furthermore, the height difference of the arc-shaped member in the vertical direction is ΔH, ΔH=b×Δh / a; wherein a is the horizontal distance from the hinge point of the other end of the cam rocker on the mounting seat to the center point of the driving member, b is the horizontal distance from the hinge point to the center point of the cam roller, and Δh is the displacement change of the electrode in the vertical direction.

[0010] Furthermore, the electrode driving mechanism also includes an elastic member, one end of which is connected to the mounting seat, and the other end of which is connected to the electrode mounting frame, and the elastic member is used to apply a downward force to the cam roller for resetting.

[0011] Furthermore, the cam roller is directly connected to the electrode mounting frame, and the number of the end face cam is one.

[0012] Furthermore, the cam roller is directly connected to the electrode mounting frame, and the number of the end face cams is two, the number of the cam rollers is two, one cam roller corresponds to one end face cam, and the two end face cams are radially separated.

[0013] Furthermore, the electrode includes a probe holder and a plurality of probes connected to the probe holder.

[0014] Further, the arc-shaped member includes a fourth part, the first part, the second part, the third part, and a fifth part in sequence along the rotation direction of the rotary drive mechanism, wherein the fourth part and the fifth part are symmetrically arranged relative to the second part, the first part and the third part are symmetrically arranged relative to the second part, and the heights of the first part and the third part are respectively greater than the heights of the fourth part and the fifth part.

[0015] Furthermore, the turntable-based electrode drive device also includes a conductive module, which includes a first conductive member connected to the mounting seat and a second conductive member fixedly arranged at the processing station, the first conductive member is electrically connected to the electrode, and the second conductive member is used to be electrically connected to an external power supply, and the rotation drive mechanism drives the carrier platform to move so that the first conductive member and the second conductive member are in contact at the processing station to achieve electrical conduction between the electrode and the external power supply.

[0016] Further, the first conductive member is located on a side of the second conductive member, one of the first conductive member and the second conductive member is a conductive wheel, and the other is a conductive sheet, and the first conductive member is in radial contact with the second conductive member.

[0017] Furthermore, a side of the second conductive member close to the first conductive member includes an elastic conductive member.

[0018] Further, the first conductive member is arranged above the second conductive member, and the first conductive member is in longitudinal contact with the second conductive member.

[0019] Furthermore, an elastic member is connected below the second conductive member, and the highest surface of the second conductive member is lower than the lowest surface of the first conductive member.

[0020] Furthermore, a PCB board is connected below the electrode, and a lead of the PCB board is connected to the first conductive member to achieve electrical connection between the first conductive member and the electrode.

[0021] According to another aspect of the present application, a laser induced sintering processing equipment is also proposed, comprising the turntable-based electrode driving device as described in any one of the above items, the laser induced sintering processing equipment also comprising a laser processing module arranged at the processing station and located above the supporting platform, the laser processing module emitting a laser beam to scan the battery cell while the electrode contacts the battery cell and applies a reverse voltage.

[0022] The beneficial effect of the present application is that the electrode can contact the workpiece on the carrier when the carrier moves to the processing station, that is, the electrode completes the rising action during the rotation of the carrier, which is beneficial to improve work efficiency. In addition, the electrode rises using the power of the turntable module itself to drive the carrier to move, and there is no need to set up a separate driving actuator for the electrode, which reduces the power source, and the electrode drive module structure is compact. The mechanical structure of the cam roller and the end face cam has strong stability and can effectively reduce the impact and vibration caused by the impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0025] Figure 1 A schematic structural diagram of an electrode driving device based on a turntable according to an embodiment of the present application.

[0026] Figure 2 A schematic diagram of the structure of an electrode driving module according to an embodiment of the present application.

[0027] Figure 3 A schematic diagram of the structure of a driving member driving a cam rocker arm according to an embodiment of the present application.

[0028] Figure 4 A schematic structural diagram of an end face cam expansion according to an embodiment of the present application.

[0029] Figure 5 A schematic structural diagram of an electrode driving module according to another embodiment of the present application.

[0030] Figure 6 for Figure 5 A schematic diagram of the structure of the electrode drive module provided without the electrodes.

[0031] Figure 7 A schematic structural diagram of a conductive module according to an embodiment of the present application.

[0032] Figure 8 A schematic structural diagram of an electrode driving module according to another embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] like Figure 1 As shown, the present application provides an electrode driving device based on a turntable, including a turntable module 100, the turntable module including a rotation drive mechanism 120 and a plurality of carriers 110 circumferentially connected to the rotation drive mechanism 120, the carrier 110 is used to carry a workpiece, and the rotation drive mechanism 120 is used to drive the plurality of carriers 110 to rotate simultaneously; wherein the rotation drive mechanism 120 can be a motor, such as a DD motor. Each carrier 110 is at the same distance from the rotation center of the rotation drive mechanism 120. Furthermore, in order to support the carrier 110, the turntable module 100 can also include a horizontally arranged and centrally symmetrical support frame, the center of the support frame is connected to the output shaft of the rotation drive mechanism 120, and the plurality of carriers 110 are circumferentially connected to the rotation drive mechanism 120 through the support frame.

[0036] The rotation path of the rotary drive mechanism 120 has a processing station A, that is, the rotary drive mechanism 120 can drive multiple carriers 110 to pass through the processing station A respectively. Of course, in order to facilitate the transfer of workpieces to or from the carrier 110, a loading station, an unloading station or other stations can also be set on the rotation path of the rotary drive mechanism 120, so that the rotary drive mechanism 120 can drive each carrier 110 to pass through the loading station, processing station A, unloading station or other stations in sequence. Each time the rotary drive mechanism 120 drives the carrier 110 to move, the carrier 110 rotates to the next station and performs corresponding operations at the station.

[0037] The turntable-based electrode driving device also includes an electrode driving module, which includes a plurality of electrode driving mechanisms 200 connected to the bottom of the carrier platform 110 and an end face cam 300 located below the electrode driving mechanism 200. One carrier platform 110 is connected to an electrode driving mechanism 200, so that when each carrier platform 110 moves to the processing station A, the electrode driving mechanism 200 connected to each carrier platform 110 can cooperate with the end face cam 300 to work.

[0038] Among them, Figure 1 , Figure 4 As shown, the end face cam 300 is an arc-shaped part, and along the rotation direction of the rotary drive mechanism 120, the end face cam 300 at least includes a first part 2, a second part 3, and a third part 4 connected in sequence; the height of the first part 2 gradually increases and is located before the processing station A; the height of the second part 3 remains unchanged and is located at the processing station A; the height of the third part 4 gradually decreases and is located after the processing station A; it should be noted that the location before or after the processing station A here means that when the rotary drive mechanism 120 rotates with the carrier 110, the cam roller 240 in the electrode drive mechanism 200 first passes through the first part 2, then the second part 3, and then the third part 4. In addition, when the processing time is very short, the second part 3 can be a very short section. Specifically, the lengths of the above three parts can be set according to actual work requirements, but the overall height change trend of the end face cam 300 is to first increase and then decrease along the rotation direction of the rotary drive mechanism 120 so that the electrode 230 contacts the back of the workpiece when moving to the processing station A. It should also be noted that, preferably, the entire length range of the end cam 300 in this embodiment mainly covers the processing station and a position before and after the processing station, and other positions may not be included. Among them, the end cam 300 is also the motion track of the cam roller 240, which can also be called a cam track.

[0039] Among them, see Figure 1 , Figure 2The electrode driving mechanism 200 includes a mounting seat 210 fixedly connected to the supporting platform 110, an electrode mounting frame 220 slidably connected to the mounting seat 210 in a vertical direction, an electrode 230 connected to the top of the electrode mounting frame 220, and a cam roller 240 directly connected to or indirectly in contact with the electrode mounting frame 220. The cam roller 240 is located below the mounting seat 210 so that the cam roller 240 drives the electrode 230 on the electrode mounting frame 220 to rise during the movement of the cam roller 240 along an arc trajectory on the surface of the end face cam 300. Considering that the electrode 230 in the electrode driving mechanism 200 contacts the workpiece from the back side of the workpiece, a hollow portion (not shown in the figure) for the electrode 230 to pass through is provided on the supporting platform 110. For example, when the electrode 230 is in the form of a probe, the probe passes through the hollow portion, and the probe bracket does not need to pass through. The probe passes through the hollow portion so as to contact the back side of the workpiece. The rotary drive mechanism 120 drives the carrier 110 to rotate, and in the process of moving to the processing station A, it drives the cam roller 240 to move along an arc trajectory on the surface of the end face cam 300, so as to drive the electrode 230 on the electrode mounting bracket 220 to rise and contact the back side of the workpiece supported by the carrier 110 when the carrier 110 moves to the processing station.

[0040] It should be noted that the end cam 300 is an arc-shaped part because the rotation drive mechanism 120 drives multiple carriers 110 to rotate in a circular path, so the cam roller 240 connected to the bottom of the carrier 110 also performs a circular rotation motion, and the carrier 110 will only perform a partial circular motion during the movement from the previous station to the processing station A, so the surface of the end cam 300 only needs to be designed into an arc. This application focuses on describing the height change of the end cam 300 at the processing station and the position near the processing station. Assuming that the end cam 300 extends to other positions, its height requires that the electrode 230 does not affect the rotation of the carrier 110. In addition, since the height of the arc-shaped member first increases and then decreases along the rotation direction of the rotary drive mechanism 120, when the cam roller 240 moves on the surface of the end cam 300 along with the carrier 110, the cam roller 240 will be subjected to the upward force of the fixed end cam 300 during the process of moving to the processing station A. Since the cam roller 240 is directly connected or indirectly in contact with the electrode mounting frame 220, the cam roller 240 will directly or indirectly drive the electrode 230 mounted on the electrode mounting frame 220 to move upward. When the cam roller 240 leaves the processing station A, the cam roller 240 will drop again and return to the initial position.

[0041] When the cam roller 240 is directly connected to the electrode mounting frame 220, the electrode mounting frame 220 is directly driven to move upward; there are many ways for the cam roller 240 to indirectly drive the electrode mounting frame 220 to move upward, for example, through a cam rocker 250 and a driving member 260 connected to the electrode mounting frame 220. This indirect driving method is described in detail in the following embodiments. In short, when the cam roller 240 moves along the arc track on the surface of the end cam 300, the electrode 230 rises and falls under the drive of the cam roller 240. When rising, it just touches the back of the workpiece when moving to the processing station A. After falling, the electrode 230 can avoid interference and conflict with the carrier 110.

[0042] Furthermore, the shape and structure of the mounting seat 210 can be diversified. Figure 2 The mounting base 210 in the figure can be an example, as long as the electrode 230 and other components can be connected to the support platform 110 through the mounting base 210. The specific structure of the electrode 230 can also be various, as long as the electrode 230 can achieve the required contact position on the back of the workpiece. This application takes the workpiece as a solar cell as an example. As one embodiment, the electrode 230 includes a probe bracket and a plurality of probes connected to the probe bracket, see Figure 5 , one end of the top of the multiple probes is used to contact the electrode on the back of the cell, so that the laser induced sintering process can be performed while the voltage is applied to the cell in the processing station A. Of course, the electrode 230 used to contact the cell may not be a probe, but may be other structures similar to strip electrodes. For specific other structures, please refer to the following.

[0043] Through the electrode driving device based on the turntable proposed in the present application, it can be realized that when the carrier 110 moves to the processing station A, the electrode 230 contacts the workpiece on the carrier 110, that is, the electrode 230 completes the rising action during the rotation of the carrier 110, which is conducive to improving work efficiency. In addition, the electrode 230 rises using the power of the turntable module itself to drive the carrier 110 to move, and there is no need to set a separate driving actuator for the electrode 230, which reduces the power source, and the electrode driving module has a compact structure. Through the mechanical structure of the cam roller 240 and the end face cam 300, the stability is strong, and the impact of the electrode 230 on the workpiece (such as a battery cell) can be effectively reduced and the vibration caused by the impact can be reduced. More specifically, through the continuous arc curve setting of the end face cam 300, the velocity curve and the acceleration curve of the cam roller 240 are continuous, and the continuous velocity curve can prevent hard impact, and the continuous acceleration curve can prevent soft impact.

[0044] As another example, Figure 2 , Figure 3As shown, this embodiment is an example of the cam roller 240 indirectly driving the electrode mounting frame 220 to move upward. Specifically, the cam roller 240 is in indirect contact with the electrode mounting frame 220. The electrode driving mechanism 200 also includes a cam swing rod 250 and a driving member 260 connected to the electrode mounting frame 220. The cam roller 240 is rotatably connected to one end of the cam swing rod 250, and the other end of the cam swing rod 250 is hinged on the mounting seat 210. The driving member 260 is located above the cam swing rod 250. When the cam roller 240 moves on the surface of the end cam 300, the cam roller 240 moves upward to drive the cam swing rod 250 to move and then push the driving member 260 to push the electrode mounting frame 220 upward. By setting a cam swing rod 250 to make the cam roller 240 indirectly drive the electrode mounting frame 220, the lever principle can be used to indirectly drive the electrode 230 to move upward. This method can further reduce the impact through the lever conversion.

[0045] As a further example of the above embodiment, Figure 3 , Figure 4 As shown, the height difference of the arc-shaped member in the vertical direction is ΔH. The change process of this height difference corresponds to the rising process of the cam roller 240 on the end face cam 300. Specifically, ΔH=b×Δh / a; wherein a is the horizontal distance from the hinge point of the other end of the cam rocker 250 on the mounting seat 210 to the center point of the driving member 260, b is the horizontal distance from the hinge point to the center point of the cam roller 240, and Δh is the displacement change of the electrode 230 in the vertical direction. Through this formula, it can be accurately ensured that when the carrier 110 moves to the processing station A, the electrode 230 just contacts the workpiece. More specifically, when the electrode 230 is in the form of a probe, Δh is the displacement change of the probe rising. This value can be a preset value. After determining Δh, a, and b, the required ΔH can be calculated, thereby designing a suitable end face cam 300. It should be noted that because the electrode eventually needs to contact the back of the workpiece, after Δh is preset, the initial installation height of the electrode 230 when it is not rising is actually determined.

[0046] As another embodiment, the electrode drive mechanism 200 further includes an elastic member (not shown in the figure), one end of the elastic member is connected to the mounting seat 210, and the other end is connected to the electrode mounting frame 220. The elastic member is used to subject the cam roller 240 to a downward force for resetting, that is, when the electrode 230 does not need to contact the workpiece, the cam roller 240 can be lowered. In this embodiment, the elastic member is, for example, a tension spring. As long as one end of the elastic member is connected to the fixed mounting seat 210 and the other end is connected to other movable parts in the electrode drive mechanism 200, the function of subjecting the cam roller 240 to a downward force can be achieved.

[0047] As another example, Figure 8As shown in the figure (the mounting seat 210 is blocked in this figure and is not numbered in the figure), the cam roller 240 is directly connected to the electrode mounting frame 230, and the number of the end face cam 300 is one. This embodiment is also feasible, and the structure of this embodiment is simple. Further, the cam roller 240 is connected to the electrode mounting frame 230 through a roller mounting seat 280. Specifically, the roller mounting seat 280 is provided with a mounting hole, and a pin is horizontally passed through the mounting hole and the cam roller 240 to lock the cam roller 240 on the roller mounting seat 280. Further, in order to prevent the cam roller 240 from swinging left and right when moving on the end face cam 300, a locking member can be provided. Specifically, the locking member of one embodiment is two gaskets respectively arranged between the cam roller 240 and the roller mounting seat 280, and the two gaskets are located on both sides of the cam roller 240. By providing the locking member, the cam roller 240 moves smoothly along the arc track of the end face cam 300. Of course, other locking members that can achieve the same function also fall within the protection scope of this application.

[0048] As another example, Figure 5 , Figure 6 As shown, the cam roller 240 is directly connected to the electrode mounting frame 230, and the number of the end cams 300 is two, and the number of the cam rollers 240 is two, one cam roller 240 corresponds to one end cam 300, and the two end cams 300 are separated in the radial direction, where the radial direction refers to the direction toward the center point of the arc-shaped member. This structure is also very simple, and the height difference of the end cam 300 in the vertical direction is directly converted into the up and down movement of the electrode 230, and the lifting and lowering movement stroke of the cam roller 240 is the lifting and lowering movement stroke of the electrode 230. When the double end cam 300 and the double cam roller 240 are used for driving, there are two support points, which can make the driving structure more stable and the force is balanced.

[0049] As another example, Figure 5 As shown, the electrode 230 includes a probe holder and a plurality of probes connected to the probe holder. Preferably, the probe is elastic to avoid damaging the workpiece when it rises to contact the workpiece and the workpiece is fragile. It should be noted that when the workpiece carried by the carrier 110 is a back-contact battery, since the positive electrode and the negative electrode of the back-contact battery are both located on the back of the battery, the probe is divided into two parts at this time, the first part of the probe contacts the positive electrode of the battery cell, and the second part of the probe contacts the negative electrode of the battery cell, and the first part of the probe is electrically connected to the positive electrode of the external power supply, and the second part of the probe contacts the negative electrode of the external power supply. In addition, the electrode 230 that contacts the back of the workpiece is not limited to the probe, and can also be other structures, such as a strip electrode. The reason why it is strip-shaped is that the grid line on the battery cell is a slender strip. At this time, the strip electrode can be a conductive wire, a strip-shaped conductive strip, and the like.

[0050] As another example, Figure 4 As shown, the arc-shaped member includes the fourth part 1, the first part 2, the second part 3, the third part 4, and the fifth part 5 in the rotation direction of the rotary drive mechanism 120. These five areas can also be called the low-position stay area 1, the push-stroke area, the high-position stay area, the return stroke area, and the low-position stay area 2 in order according to their functions. It can be understood that when the electrode 230 has not started to rise in the low-position stay area 1, the cam roller 240 slowly rotates to the push-stroke area, the electrode 230 rises, and when it just reaches the high-position stay area, the electrode 230 just contacts the back of the workpiece. During the stay in the high-position stay area, the workpiece completes the processing process. After the processing is completed, the cam roller 240 continues to rotate and then the electrode starts to descend and no longer contacts the workpiece until it returns to the low-position stay area 2. In order to achieve the above-mentioned height position change, the fourth part 1 and the fifth part 5 are symmetrically arranged relative to the second part 3, the first part 2 and the third part 4 are symmetrically arranged relative to the second part 3, the heights of the first part 2 and the third part 4 are respectively greater than the heights of the fourth part 1 and the fifth part 5, and the maximum height of the first part 22 and the third part 4 is the same as the height of the second part 3. By arranging the arc-shaped member into a symmetrical structure, no matter the support platform 110 rotates clockwise or counterclockwise under the drive of the rotation drive mechanism 120 , the same working requirement of the electrode lifting and contacting the workpiece can be achieved.

[0051] As another embodiment, the electrode driving device based on the turntable further includes a conductive module, such as Figure 2 , Figure 5 , Figure 7 As shown, the conductive module includes a first conductive member 410 connected to the mounting seat 210 and a second conductive member 420 fixedly arranged at the processing station, the first conductive member 410 is electrically connected to the electrode 230, and the second conductive member 420 is used to be electrically connected to an external power supply, and the rotary drive mechanism 120 drives the carrier 110 to move so that the first conductive member 410 and the second conductive member 420 are in contact at the processing station A to achieve electrical conduction between the electrode 230 and the external power supply. By arranging the first conductive member 410 on each carrier 110, the electrode 230 can be electrically connected to the external power supply when the carrier 110 moves to the processing station A, which is more time-saving and convenient, and this conductive wiring method is simple. Among them, the first conductive member 410 can be electrically connected to the electrode 230 in a variety of ways, such as directly connected through a conductive wire, or connected through a PCB board in the following embodiment, and any form that can electrically connect the first conductive member 410 to the electrode 230 is within the protection scope of this application.

[0052] Furthermore, when the workpiece carried by the carrier 110 is a back-contact cell sheet, the back-contact cell sheet can be a standard whole sheet, in which case the electrode 230 requires two connection points, and the first conductive member 410 and the second conductive member 420 can be designed as two circuits to be electrically connected to the two connection points; of course, the back-contact cell sheet carried on the carrier 110 can also be in the form of two sub-sheets, in which case the electrode 230 corresponds to the positive electrode and the negative electrode of the two sub-sheets, and requires four connection points, and correspondingly, the first conductive member 410 and the second conductive member 420 can be designed as four circuits to be electrically connected to the four connection points. Of course, when the back-contact cell has a larger number of sub-sheets, the number of connection points is larger, and the required number of circuits can be set accordingly.

[0053] As another example, Figure 7 As shown, the first conductive member 410 is located on the side of the second conductive member 420, one of the first conductive member 410 and the second conductive member 420 is a conductive wheel, and the other is a conductive sheet, and the first conductive member 410 is in radial contact with the second conductive member 420. When one of the two conductive members is set as a conductive wheel, the contact between the two is better and smoother. Preferably, assuming that the cam roller 240 is in indirect contact with the electrode mounting frame 220, and the number of the cam roller 240 is only one, in this embodiment, the projections of the first conductive member 410 and the second conductive member 420 in the horizontal plane are both located outside the end face cam 300.

[0054] As another example, Figure 7 As shown, the second conductive member 420 includes an elastic conductive member 430 on one side close to the first conductive member 410 , and the elastic conductive member 430 is elastically squeezed and deformed to better achieve good contact between the first conductive member 410 and the second conductive member 420 .

[0055] As another example, Figure 5 As shown, the first conductive member 410 is disposed above the second conductive member 420, and the first conductive member 410 is in longitudinal contact with the second conductive member 420. Further, the first conductive member 410 is connected to the mounting seat 210 via an insulating mounting plate. In other words, the two conductive members can be in radial contact or in longitudinal contact, as long as good contact can be achieved.

[0056] As another example, Figure 5As shown, an elastic member 440 is connected below the second conductive member 420, and the highest surface of the second conductive member 420 is lower than the lowest surface of the first conductive member 410. By connecting the second conductive member 420 to the elastic member 440, a floating design of the second conductive member 420 is realized, and the elastic member 440 ensures that the highest surface of the second conductive member 420 is slightly higher than the lowest surface of the first conductive member 410. After the first conductive member 410 moves into place, it presses the second conductive member 420 to ensure good contact between the two, thereby ensuring smooth current loading. Among them, the elastic member 440 can be, for example, a compression spring.

[0057] As another embodiment, a PCB board is connected underneath the electrode 230. Similarly, assuming that the electrode 230 is in the form of a probe, each probe first contacts the PCB board, and then two, four or more leads are led out from the PCB board. All the probes are connected through the leads of the PCB board. The wiring method is simple and beautiful, and the leads of the PCB board are connected to the first conductive member 410 to realize the electrical connection between the first conductive member 410 and the electrode 230. As a result, when the support platform 110 moves to the processing station A, the electrode 230 is electrically connected to the external power supply.

[0058] The present application also proposes a laser induced sintering processing equipment, including an electrode driving device based on a turntable of any of the above embodiments, and also including a laser processing module (not shown in the figure) arranged at processing station A and located above the carrier 110, the laser processing module is used to emit a laser beam to scan the battery cell while the electrode 230 contacts the battery cell and applies a reverse voltage. Among them, the laser processing module includes at least a laser and a laser scanning mechanism, the laser is used to emit a laser beam, and the laser scanning mechanism is used to control the scanning direction of the laser beam, such as a galvanometer. Of course, the laser processing component can also include other optical devices to meet other needs.

[0059] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0060] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0061] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0062] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrode driving device based on a turntable, comprising a turntable module, wherein the turntable module comprises a rotation driving mechanism and a plurality of bearing platforms connected to the rotation driving mechanism along a circumferential direction, wherein the rotation driving mechanism is used to drive the plurality of bearing platforms to rotate simultaneously; characterized in that: The rotating path of the rotary drive mechanism is provided with a processing station, and the rotary drive mechanism drives the plurality of the carriers to pass through the processing stations respectively. The electrode drive device based on the turntable further comprises an electrode drive module, and the electrode drive module comprises a plurality of electrode drive mechanisms connected to the bottom of the carrier and an end face cam located below the electrode drive mechanism, and one of the carriers is connected with one of the electrode drive mechanisms; The end face cam is an arc-shaped part, and along the rotation direction of the rotary drive mechanism, the end face cam at least includes a first part, a second part, and a third part connected in sequence; the first part gradually increases in height and is located before the processing station; the second part remains unchanged in height and is located at the processing station; the third part gradually decreases in height and is located after the processing station; The electrode driving mechanism comprises a mounting seat fixedly connected to the supporting platform, an electrode mounting frame slidably connected to the mounting seat in a vertical direction, an electrode connected to the top of the electrode mounting frame, and a cam roller directly connected to or indirectly in contact with the electrode mounting frame, wherein the cam roller is located below the mounting seat so that the cam roller drives the electrode on the electrode mounting frame to rise during the process of moving along an arc track on the end face cam surface; The support platform is provided with a hollow portion for the electrode to pass through.

2. The electrode driving device based on a turntable according to claim 1, characterized in that: The cam roller is in indirect contact with the electrode mounting frame, and the electrode driving mechanism also includes a cam rocker and a driving member connected to the electrode mounting frame, the cam roller is rotatably connected to one end of the cam rocker, and the other end of the cam rocker is hinged on the mounting seat; the driving member is located above the cam rocker, and when the cam roller moves on the end face cam surface, the cam roller moves upward to drive the cam rocker to move, and then pushes the driving member upward to push the electrode mounting frame upward.

3. The electrode driving device based on a turntable according to claim 2, characterized in that: The height difference of the arc-shaped member in the vertical direction is ΔH, ΔH=b×Δh / a; wherein, a is the horizontal distance from the hinge point of the other end of the cam rocker on the mounting seat to the center point of the driving member, b is the horizontal distance from the hinge point to the center point of the cam roller, and Δh is the displacement change of the electrode in the vertical direction.

4. The electrode driving device based on a turntable according to claim 1, characterized in that: The electrode driving mechanism also includes an elastic member, one end of which is connected to the mounting seat, and the other end of which is connected to the electrode mounting frame. The elastic member is used to apply a downward force to the cam roller so as to reset it.

5. The electrode driving device based on a turntable according to claim 1, characterized in that: The cam roller is directly connected to the electrode mounting frame, and the number of the end face cam is one.

6. The electrode driving device based on a turntable according to claim 1, characterized in that: The cam roller is directly connected to the electrode mounting frame, and the number of the end face cams is two, the number of the cam rollers is two, one cam roller corresponds to one end face cam, and the two end face cams are radially separated.

7. The electrode driving device based on a turntable according to claim 1, characterized in that: The electrode comprises a probe support and a plurality of probes connected to the probe support.

8. The electrode driving device based on a turntable according to claim 1, characterized in that: The arc-shaped member includes a fourth part, the first part, the second part, the third part, and a fifth part in sequence along the rotation direction of the rotary drive mechanism, wherein the fourth part and the fifth part are symmetrically arranged relative to the second part, the first part and the third part are symmetrically arranged relative to the second part, and the heights of the first part and the third part are respectively greater than the heights of the fourth part and the fifth part.

9. The electrode driving device based on a turntable according to any one of claims 1 to 8, characterized in that: The turntable-based electrode drive device also includes a conductive module, which includes a first conductive member connected to the mounting seat and a second conductive member fixedly arranged at the processing station, the first conductive member is electrically connected to the electrode, and the second conductive member is used to be electrically connected to an external power supply, and the rotation drive mechanism drives the support platform to move so that the first conductive member and the second conductive member are in contact at the processing station to achieve electrical conduction between the electrode and the external power supply.

10. The electrode driving device based on a turntable according to claim 9, characterized in that: The first conductive member is located on a side of the second conductive member, one of the first conductive member and the second conductive member is a conductive wheel, and the other is a conductive sheet, and the first conductive member is in radial contact with the second conductive member.

11. The electrode driving device based on a turntable according to claim 10, characterized in that: A side of the second conductive member close to the first conductive member includes an elastic conductive member.

12. The electrode driving device based on a turntable according to claim 9, characterized in that: The first conductive member is disposed above the second conductive member, and the first conductive member is in longitudinal contact with the second conductive member.

13. The electrode driving device based on a turntable according to claim 12, characterized in that: An elastic member is connected below the second conductive member, and the highest surface of the second conductive member is lower than the lowest surface of the first conductive member.

14. The electrode driving device based on a turntable according to claim 9, characterized in that: A PCB board is connected below the electrode, and a lead of the PCB board is connected to the first conductive member to achieve electrical connection between the first conductive member and the electrode.

15. A laser induced sintering processing equipment, comprising the electrode driving device based on a turntable according to any one of claims 1 to 14, characterized in that: It also includes a laser processing module arranged at the processing station and located above the supporting platform, and the laser processing module emits a laser beam to scan the battery cell when the electrode contacts the battery cell and applies a reverse voltage.

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