Collecting disc positioning mechanism and welding device

Abstract

The utility model relates to the technical field of battery welding devices, and provides a collector plate positioning mechanism and a welding device.The collector plate positioning mechanism comprises a collector plate positioning part and a welding part, the collector plate positioning part comprises a positioning seat, and a positioning groove is formed in the positioning seat and used for positioning a collector plate; and the collector plate picking part comprises a clamping jaw arranged on the positioning seat, a plurality of positioning convex blocks are arranged on the peripheral side of the clamping jaw, and each positioning convex block is used for positioning and clamping the peripheral side of the collector plate, so that the collector plate is positioned in the positioning groove. The current collecting disc positioning mechanism and the welding device are used for solving the problems that a traditional current collecting disc positioning mechanism lacks accurate position positioning and angle positioning of a current collecting disc, so that the positioning efficiency of the current collecting disc is low, and the positioning accuracy is not accurate; and the requirement for angle positioning and the requirement for high-efficiency positioning of an existing collector plate cannot be met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery welding devices, in particular to a current collecting plate positioning mechanism and a welding device. Background Art

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

[0003] In actual applications, when welding the current collecting plate at the end of the battery cell, the current collecting plate needs to be picked up and positioned first, and then transported to the welding pressure head after positioning. However, on the one hand, the existing current collecting plate positioning mechanism has a relatively complex structural setting of the picking components and requires more cylinders, which increases the production cost of the equipment. On the other hand, it lacks precise position positioning and angle positioning of the current collecting plate, resulting in low positioning efficiency and inaccurate positioning accuracy of the current collecting plate, which cannot meet the needs of existing current collecting plates for angle positioning and high-efficiency positioning. Utility Model Content

[0004] The utility model provides a current collecting plate positioning mechanism and a welding device, which are used to solve the problem that the traditional current collecting plate positioning mechanism lacks accurate positioning of the current collecting plate, resulting in low positioning efficiency and inaccurate positioning accuracy of the current collecting plate, and cannot meet the needs of existing current collecting plates for angle positioning and high-efficiency positioning.

[0005] In view of the problems existing in the prior art, the utility model provides a current collecting plate positioning mechanism, comprising:

[0006] The current collecting plate positioning part comprises a positioning seat, the positioning seat is provided with a positioning groove, and the positioning groove is used to position the current collecting plate; and,

[0007] The collecting plate picking part comprises a clamping claw arranged on the positioning seat, and a plurality of positioning protrusions are arranged on the peripheral side of the clamping claw, and each positioning protrusion is used for positioning and clamping the peripheral side of the collecting plate so that the collecting plate is positioned in the positioning groove.

[0008] According to a current collecting plate positioning mechanism provided by the utility model, the positioning groove is provided with a first protrusion corresponding to the notch of the current collecting plate, and the first protrusion is used to fix the angular position of the current collecting plate relative to the positioning groove.

[0009] According to a current collecting plate positioning mechanism provided by the utility model, a second protrusion is provided at the center of the positioning groove, and the second protrusion is used to correspond to the center hole of the current collecting plate to fix the center position of the current collecting plate.

[0010] According to a current collecting plate positioning mechanism provided by the utility model, an optical fiber sensor is provided at the bottom wall of the positioning groove, and the optical fiber sensor is used to detect whether there is a current collecting plate in the positioning groove.

[0011] According to a current collecting plate positioning mechanism provided by the utility model, a proximity sensor is provided at the bottom wall of the positioning groove, and the proximity sensor is arranged close to the side wall of the positioning groove, and the proximity sensor is used to detect whether the current collecting plate is placed in place.

[0012] According to a collector plate positioning mechanism provided by the utility model, the clamp comprises two clamp blocks arranged opposite to each other and a clamp cylinder, and the two ends of the clamp cylinder are respectively connected to each clamp block for driving the two clamp blocks to move closer to or away from each other;

[0013] A plurality of positioning protrusions are provided on the peripheral side of each clamping block, and the two clamping blocks are used to enable the positioning protrusions to cooperate with each other to clamp the current collecting plate when the two clamping blocks are approaching each other, so as to position the current collecting plate to the positioning groove.

[0014] According to a current collecting plate positioning mechanism provided by the utility model, the current collecting plate positioning mechanism also includes a lifting part, which includes a lifting block slidably connected to one side of the positioning seat, and the lifting block is used to lift out the current collecting plate in the positioning groove during sliding along the positioning seat.

[0015] According to a current collecting plate positioning mechanism provided by the utility model, an opening is provided at the bottom of the positioning groove, and the end of the top block can be movably inserted into the opening to lift the current collecting plate in the positioning groove;

[0016] A negative pressure suction port is provided at the end of the top block, and the negative pressure suction port is used to adsorb the corresponding current collecting plate.

[0017] The utility model also provides a current collecting plate welding device, comprising a rotating plate, a current collecting plate positioning mechanism and a laser welding mechanism, wherein the current collecting plate positioning mechanism is the current collecting plate positioning mechanism as described in any one of the above items.

[0018] According to a current collecting plate welding device provided by the utility model, the current collecting plate welding device includes a plurality of current collecting plate positioning mechanisms, each of the current collecting plate positioning mechanisms is arranged in sequence and spaced apart along the feeding direction, and the current collecting plate welding device also includes a lifting drive unit, and the lifting drive unit is used to drive the top block of any of the current collecting plate positioning mechanisms to slide so as to eject the current collecting plate in the corresponding positioning groove.

[0019] The current collecting plate positioning mechanism provided by the utility model can position the current collecting plate by setting the current collecting plate positioning part, and can assist in positioning the current collecting plate in the corresponding positioning groove by setting the clamping jaws and the positioning protrusions on the clamping jaws, thereby ensuring the high-efficiency positioning rhythm of the current collecting plate, reducing the subsequent welding waiting time, and improving the positioning and welding efficiency of the current collecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of the first embodiment of the current collecting plate positioning mechanism provided by the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of a top view structure;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of the second embodiment of the current collecting plate positioning mechanism provided by the utility model;

[0024] Figure 4 for Figure 1 A schematic diagram of a top view structure;

[0025] Figure 5 It is a side view structural schematic diagram of the current collecting plate welding device provided by the utility model;

[0026] Figure numerals: 10: current collecting plate positioning mechanism; 100: current collecting plate positioning part; 110: positioning seat; 111: positioning groove; 112: first protrusion; 113: second protrusion; 114: opening; 120: lifting part; 121: lifting block; 122: negative pressure suction port; 130: proximity sensor; 140: optical fiber sensor; 200: current collecting plate picking part; 210: clamping claw; 220: positioning protrusion; 230: clamping block; 20: current collecting plate; 30: current collecting plate welding device; 31: turntable; 32: laser welding mechanism; 33: lifting drive part; 34: conveying mechanism. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying 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 limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Combine the following Figure 1-Figure 5 The collector plate positioning mechanism 10 and the welding device provided by the utility model are described.

[0033] In view of the fact that the positioning and clamping of the collector plate in the welding process of the collector plate in the conventional technology is relatively complicated, in order to solve the problems existing in the prior art, the utility model provides a collector plate positioning mechanism 10, including a collector plate positioning part 100 and a collector plate picking part 200. The collector plate positioning part 100 includes a positioning seat 110, and a positioning groove 111 is provided on the positioning seat 110. The collector plate 20 is placed in the positioning groove 111 to achieve the positioning effect; the collector plate picking part 200 includes a clamping jaw 210 provided at the end of the positioning seat 110, and a plurality of positioning protrusions 220 are provided on the peripheral side of the clamping jaw 210, and each positioning protrusion 220 is used to position and clamp the peripheral side of the collector plate 20. It should be noted that when loading, the clamping jaw 210 is opened, and at this time, the loading mechanism places the collector plate 20 in the positioning groove 111 for one-time positioning. When the loading is completed, the clamping jaws 210 are closed, and the multiple protrusions 220 are close to clamp the collector plate 20, and a corrective secondary positioning is performed to accurately position the collector plate 20 in the positioning groove 111. The collector plate positioning mechanism 100 provided by the utility model can position the collector plate 20 by setting the collector plate positioning part 110, and can assist in positioning the collector plate 20 in the corresponding positioning groove 111 through the setting of the clamping jaws 210 and the positioning protrusions 220 on the clamping jaws 210, thereby ensuring a high-efficiency positioning beat of the collector plate 20, reducing the subsequent welding waiting time, and improving the positioning and welding efficiency of the collector plate 20.

[0034] The current collecting plate positioning mechanism 10 in the conventional technology has a low positioning accuracy for the current collecting plate 20 and lacks the function of detecting the positive and negative directions, which brings challenges to the subsequent welding process of the current collecting plate 20 and easily causes an increase in the defect rate. In the technical solution provided by the utility model, a first protrusion 112 corresponding to the notch of the current collecting plate 20 is provided on the positioning groove 111, and the first protrusion 112 is used to fix the angular position of the current collecting plate 20 relative to the positioning groove 111, so that the first protrusion 112 can ensure that the angular position of each current collecting plate 20 relative to the positioning groove 111 is the same, which is convenient for the subsequent welding process. It should be noted that the first protrusion 112 can be set to one or more according to the actual shape of the current collecting plate 20, and the utility model does not limit this. Further, in another optional embodiment, a second protrusion 113 is provided at the center of the positioning groove 111, and the second protrusion 113 is used to correspond to the center hole of the current collecting plate 20 to fix the center position of the current collecting plate 20, complete the position locking of the current collecting plate 20, and prevent the current collecting plate 20 from being tilted. It should be noted that those skilled in the art may selectively set the first protrusion 112 or the second protrusion 113 , or set both the first protrusion 112 and the second protrusion 113 according to actual working conditions and the actual shape of the collecting plate 20 .

[0035] Furthermore, an optical fiber sensor 140 is provided at the bottom wall of the positioning groove 111, and the optical fiber sensor 140 is used to detect whether there is a current collecting tray 20 in the positioning groove 111, and is used to monitor the situation where the current collecting tray 20 is not successfully loaded. Furthermore, a proximity sensor 130 is provided at the bottom wall of the positioning groove 111, and the proximity sensor 130 is arranged close to the side wall of the positioning groove 111, and is used to detect whether the current collecting tray 20 is placed in place. It should be noted that the proximity sensor 130 can measure whether the front and back sides of the current collecting tray 20 are placed correctly on the one hand, and can also detect whether the current collecting tray 20 is placed in place on the other hand. When the collector plate 20 is positioned in the positioning groove 111, if the front and back sides of the collector plate 20 are correctly placed, the collector plate 20 is flat against the bottom wall of the positioning groove 111, and the distance measured by the proximity sensor 130 is 0 or a very small value range, which proves that the front and back sides of the collector plate 20 are correctly placed; on the contrary, if the front and back sides of the collector plate 20 are incorrectly placed or the collector plate 20 is not properly placed (for example, the notch of the collector plate 20 is not aligned with the first protrusion 112, and the collector plate 20 is tilted), the distance measured by the proximity sensor 130 is larger. The utility model uses the optical fiber sensor 140 and the proximity sensor 130 to first detect whether the collector plate 20 exists in the positioning seat 110, and then detect whether the collector plate 20 is installed in place, which can cover and detect various situations that occur during the positioning process of the collector plate 20.

[0036] The current collecting plate picking mechanism in the traditional technology requires two cylinders to control the two clamping blocks of a clamping claw respectively, and the structure is relatively complex and the equipment cost is relatively high. In the technical solution provided by the utility model, the clamping claw 210 includes two clamping blocks 230 and a clamping claw cylinder that are relatively movable. The two ends of the clamping claw cylinder are respectively connected to each clamping block 230 for driving the two clamping blocks 230 to move closer to or away from each other. A plurality of positioning protrusions 220 are provided on the peripheral side of each clamping block 230. The two clamping blocks 230 are used to enable each positioning protrusion 220 to cooperate with the clamping of the current collecting plate 20 in the process of approaching each other, so as to accurately position the current collecting plate 20 in the positioning groove 11. In the technical solution provided by the utility model, the two clamping blocks 230 can be driven by a clamping claw cylinder, which reduces the occupied space of the equipment and also reduces the cost. In addition, the positioning protrusion 220 can fix and clamp the peripheral side of the current collecting plate 20, assist in secondary deviation correction and positioning, and improve the positioning accuracy and positioning efficiency.

[0037] It should be noted that after the positioning is completed, the collecting plate 20 needs to be moved to the collecting plate loading station for subsequent welding. In the traditional technology, the clamp needs to be turned over to complete the loading of the collecting plate after completing the positioning of the collecting plate, and the process is relatively complicated. In the technical solution provided by the utility model, the collecting plate positioning mechanism 10 also includes a lifting part 120, and the lifting part 120 includes a top block 121 slidably connected to one side of the positioning seat 110. The top block 121 ejects the collecting plate 20 in the corresponding positioning groove 111 during the sliding process along the positioning seat 110. The collecting plate 20 after ejection will contact the turntable 31 used for collecting plate loading and welding, and then be adsorbed by the material taking pressure head set in the turntable 31, which is convenient for the subsequent welding process of the collecting plate 20. The utility model can significantly speed up the production cycle by changing the flip loading to the lifting loading.

[0038] Specifically, a guide rail extending along the height direction of the positioning seat 110 is provided on one side thereof, and the top block 121 is slidably connected to the guide rail; of course, a matching form of a slide groove and a slider can also be provided, as long as the top block 121 can be slidably connected to the positioning seat 110, and the utility model does not limit this. Furthermore, an opening 114 is provided at the bottom of the positioning groove 111, and the end of the top block 121 can be movably inserted into the opening 114. When the top block 121 slides close to the positioning groove 111, the top block 121 can lift the current collecting plate 20 in the positioning groove 111. In order to prevent the current collecting plate 20 from falling off during the lifting process, a negative pressure suction port 122 is provided at the end of the top block 121, and the negative pressure suction port 122 is connected to the negative pressure mechanism for adsorbing the corresponding current collecting plate 20. In addition, since the material of the collecting plate 20 contains metal, the collecting plate 20 can also be adsorbed by magnetic adsorption, for example, a magnet is set at the end of the top block 121 or a part of the top block 121 is set as a magnet. It is only necessary to ensure that the magnetic attraction force is smaller than the attraction force of the material picking head on the turntable 31.

[0039] See also Figure 1-Figure 2 , which is the first embodiment of the current collecting plate positioning mechanism 10 provided by the utility model. In the first embodiment, the edge of the current collecting plate 20 has two notches, and correspondingly, two first protrusions 112 are provided on the positioning groove 111, and the shape of the first protrusion 112 corresponds to the shape of the notch of the current collecting plate 20, and the setting position of the first protrusion 112 also corresponds to the setting orientation of the notch of the current collecting plate 20, so that the first protrusion 112 can ensure that the angular position of each current collecting plate 20 relative to the positioning groove 111 is the same, thereby ensuring the positioning accuracy of the current collecting plate 20 and facilitating the subsequent welding process. Furthermore, an optical fiber sensor 140 is provided at the bottom wall of the positioning groove 111, and the optical fiber sensor 140 is used to detect whether there is a current collecting plate 20 in the positioning groove 111, so as to prevent the problem of the current collecting plate 20 falling off after the material is not loaded or loaded. A proximity sensor 130 is provided at the bottom wall of the positioning groove 111, and the proximity sensor 130 is arranged close to the side wall of the positioning groove 111, and is used to detect whether the current collecting plate 20 is placed in place. Furthermore, in the first embodiment, the opening 114 is arranged at the center of the positioning groove 111 , and the top block 121 and the negative pressure suction port 122 arranged thereon can be clearly seen in the accompanying drawings. The top block 121 can movably pass through the opening 114 to push out the corresponding collecting plate 20 .

[0040] See also Figure 3-Figure 4 , which is the second embodiment of the current collecting plate positioning mechanism 10 provided by the utility model. In the second embodiment, the center hole of the current collecting plate 20 is deeper, so a second protrusion 113 is provided at the center of the positioning groove 111, and the second protrusion 113 matches the center hole of the current collecting plate 20, which can ensure the placement position of the current collecting plate 20. Further, in the second embodiment, the opening 114 is located on both sides of the positioning groove 111, and the top block 121 extends from the openings 114 on both sides; or, the opening 114 can be provided at the center of the positioning groove 111, and the second protrusion 113 is provided at the end of the top block 121, so that the positioning and lifting of the current collecting plate 20 are completed by the top block 121.

[0041] The present invention provides two embodiments of the collector plate positioning mechanism 10. The shape features of the collector plate 20 in the two embodiments are different, and thus the corresponding settings of the collector plate positioning mechanism 10 are different. The present invention provides multiple structural features of the collector plate positioning mechanism 10. Those skilled in the art can select appropriate structural features for combination according to the actual shape of the collector plate 20 in actual applications, so as to set a suitable collector plate positioning mechanism 10.

[0042] The utility model also provides a current collecting plate welding device 30, including a turntable 31, a current collecting plate positioning mechanism 10 and a laser welding mechanism 32. The turntable 31 is provided with a loading station, a detection station and a welding station. The current collecting plate 20 first enters the loading station, and then is driven by the turntable 31 to successively move to the detection station and the welding station. The detection station can be provided with an optical fiber sensor for detecting the presence or absence of the current collecting plate 20 to prevent the problem of unsuccessful loading of the current collecting plate 20 or the current collecting plate 20 falling off before welding.

[0043] Specifically, the collector plate welding device 30 includes a plurality of collector plate positioning mechanisms 10, and the collector plate welding device 30 also includes a conveying mechanism 34, the conveying mechanism 34 includes a slide rail and a driving member, the positioning seat 110 of each collector plate positioning mechanism 10 is movably arranged on the slide rail, and the driving member is used to drive each collector plate positioning mechanism 10 to move synchronously or separately, so that one of the collector plate positioning mechanisms 10 is in a loading state while another collector plate positioning mechanism 10 is in a fetching state, thereby realizing alternating loading and loading caching. By setting up a plurality of collector plate positioning mechanisms 10, it can be ensured that there are sufficient collector plates 20 in the cache for picking up and welding, which reduces the waiting time for welding and ensures the welding rhythm.

[0044] Furthermore, the current collecting plate welding device 30 also includes a lifting drive unit 33, which is used to drive the top block 121 of any current collecting plate positioning mechanism 10 to slide so as to eject the current collecting plate 20 in the corresponding positioning groove 111. It should be noted that a material picking head is provided on the turntable 31. When the current collecting plate 20 approaches the turntable 31, it will be adsorbed by the material picking head on the turntable 31 to facilitate the next step of the process. Specifically, when any current collecting plate positioning mechanism 10 carrying the current collecting plate 20 moves to the top of the lifting drive unit 33, the lifting drive unit 33 opens and abuts against the top block 121 of the current collecting plate positioning mechanism 10, and the top block 121 is lifted upward and passes through the opening 114 on the positioning seat 110 until it contacts the current collecting plate 20. At the same time, when the top block 121 continues to move upward, the collecting plate 20 is pushed into the material picking pressure head. After the material picking pressure head adsorbs the collecting plate 20, the negative pressure suction port 122 on the top block 121 releases the collecting plate 20, and the lifting drive part 33 drives the top block 121 to retract, and the material picking pressure head carries the collecting plate 20 for the next step of welding.

[0045] See also Figure 5 In an optional embodiment, the lifting drive unit includes a linear drive cylinder disposed on one side of the positioning seat 110, and the linear drive cylinder extends in the vertical direction, and is used to lift each top block 121 in sequence. It should be noted that the conveying mechanism 34 drives each current collecting plate positioning mechanism 10 to move to the loading station respectively, and the linear drive cylinder located at the loading station can lift the current collecting plates 20 in different current collecting plate positioning mechanisms 10 in sequence, shortening the loading time of the current collecting plates 20 and improving the efficiency of the entire station.

[0046] The utility model takes the arrangement of 6 collecting plate positioning mechanisms 10 as an example to describe the entire loading process. For the convenience of description, the 6 collecting plate positioning mechanisms 10 are numbered from left to right as collecting plate positioning mechanism a, collecting plate positioning mechanism b, collecting plate positioning mechanism c, collecting plate positioning mechanism d, collecting plate positioning mechanism e and collecting plate positioning mechanism f.

[0047] The first step is that the collecting plate positioning mechanism d moves to the material taking position for the material taking mechanism to take the material;

[0048] Step 2: The collecting plate positioning mechanism e moves to the material taking position for the material taking mechanism to take the material, and the collecting plate positioning mechanism a, the collecting plate positioning mechanism b and the collecting plate positioning mechanism c are loaded;

[0049] Step 3: The collecting plate positioning mechanism f moves to the material taking position for the material taking machine to take the material;

[0050] Step 4: The collecting plate positioning mechanism c moves to the material taking position for the material taking mechanism to take the material;

[0051] Step 5: The collecting plate positioning mechanism b moves to the material taking position for the material taking mechanism to take the material, and the collecting plate positioning mechanism d, the collecting plate positioning mechanism e and the collecting plate positioning mechanism f are loaded with material;

[0052] Step 6: The collecting plate positioning mechanism a moves to the material taking position for the material taking mechanism to take the material;

[0053] Then proceed with steps 1 to 6 in sequence and repeat this cycle.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A collector plate positioning mechanism, characterized in that: include: The current collecting plate positioning part comprises a positioning seat, the positioning seat is provided with a positioning groove, and the positioning groove is used to position the current collecting plate; as well as, The collecting plate picking part comprises a clamping claw arranged on the positioning seat, and a plurality of positioning protrusions are arranged on the peripheral side of the clamping claw, and each positioning protrusion is used for positioning and clamping the peripheral side of the collecting plate so that the collecting plate is positioned in the positioning groove.

2. The collector plate positioning mechanism according to claim 1, characterized in that: The positioning groove is provided with a first protrusion corresponding to the notch of the current collecting plate, and the first protrusion is used to fix the angular position of the current collecting plate relative to the positioning groove.

3. The collector plate positioning mechanism according to claim 1, characterized in that: A second protrusion is provided at the center of the positioning groove, and the second protrusion is used to correspond to the center hole of the current collecting plate to fix the center position of the current collecting plate.

4. The collector plate positioning mechanism according to claim 1, characterized in that: An optical fiber sensor is provided at the bottom wall of the positioning groove, and the optical fiber sensor is used to detect whether there is a current collecting plate in the positioning groove.

5. The collector plate positioning mechanism according to claim 1 or 4, characterized in that: A proximity sensor is provided at the bottom wall of the positioning groove. The proximity sensor is arranged close to the side wall of the positioning groove. The proximity sensor is used to detect whether the current collecting plate is placed in place.

6. The collector plate positioning mechanism according to claim 1, characterized in that: The clamping jaws include two clamping blocks arranged opposite to each other and a clamping jaw cylinder, and the two ends of the clamping jaw cylinder are respectively connected to the clamping blocks for driving the two clamping blocks to move closer to or away from each other; A plurality of positioning protrusions are provided on the peripheral side of each clamping block, and the two clamping blocks are used to enable the positioning protrusions to cooperate with each other to clamp the current collecting plate when the two clamping blocks are approaching each other, so as to position the current collecting plate to the positioning groove.

7. The collector plate positioning mechanism according to claim 1, characterized in that: The current collecting plate positioning mechanism further comprises a lifting portion, which comprises a lifting block slidably connected to one side of the positioning seat, and the lifting block is used to lift out the current collecting plate in the positioning groove during sliding along the positioning seat.

8. The collector plate positioning mechanism according to claim 7, characterized in that: The bottom of the positioning groove is provided with an opening, and the end of the top block can be movably inserted into the opening to lift the current collecting plate in the positioning groove; A negative pressure suction port is provided at the end of the top block, and the negative pressure suction port is used to adsorb the corresponding current collecting plate.

9. A current collecting plate welding device, characterized in that: It comprises a rotating disk, a current collecting disk positioning mechanism and a laser welding mechanism, wherein the current collecting disk positioning mechanism is the current collecting disk positioning mechanism as described in any one of claims 1-8.

10. The current collecting plate welding device according to claim 9, characterized in that: The current collecting plate welding device includes a plurality of current collecting plate positioning mechanisms, each of which is arranged in sequence and at intervals along the feeding direction. The current collecting plate welding device also includes a lifting drive unit, which is used to drive the top block of any of the current collecting plate positioning mechanisms to slide so as to eject the current collecting plate in the corresponding positioning groove.

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