Rotary positioning device, positioning system and welding equipment

Abstract

The utility model relates to a rotary positioning device, a positioning system and welding equipment, and the rotary positioning device comprises a turntable which is axially provided with a through hole and can be controlled to rotate around an axis; the clamping mechanism comprises a first clamping assembly and a second clamping assembly, and each of the first clamping assembly and the second clamping assembly comprises a first positioning block and a second positioning block which are correspondingly arranged on the rotating disc; all the first positioning blocks and the second positioning blocks penetrate through the through holes along the axial direction of the turntable, and two ends of the first positioning blocks and the second positioning blocks protrude out of the turntable; the second positioning blocks of the first clamping assembly and the second clamping assembly are movably installed on the rotary disc in the first radial direction and the second radial direction of the rotary disc respectively and can be close to or away from the corresponding first positioning blocks so as to clamp or loosen the batteries conveyed into the through holes in the axial direction. The battery can be clamped in two different directions under the matching action of the first clamping assembly and the second clamping assembly of one clamping mechanism, and compared with the mode that the battery is clamped through two clamping mechanisms, the rotary positioning device is simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a rotary positioning device, a positioning system and a welding device. Background Art

[0002] When manufacturing blade batteries, welding equipment is required to weld and fix the battery housing and the end cover. The welding equipment includes a feeding device, a rotary positioning device and a welding device. Before welding the housing and the end cover, the feeding device pushes the battery into the rotary positioning device. The rotary positioning device clamps and positions the battery and can drive the battery to rotate. The welding device welds the end cover to the housing of the clamped battery.

[0003] In the traditional technology, the rotary positioning device includes a turntable and two sets of clamping mechanisms. The two sets of clamping mechanisms are independently arranged at both ends of the turntable in the axial direction, and the two sets of clamping mechanisms cooperate to clamp the battery. Since the rotary positioning device includes two sets of front and rear clamping mechanisms, it not only results in a complex structure, but also it is difficult for the two sets of clamping mechanisms to clamp the battery synchronously. Asynchronous clamping will lead to inaccurate positioning. [[ID=1,2,4,7,9,10,12]] Summary of the Utility Model

[0004] Based on this, in view of the problems of complex structure and easy inaccurate positioning of the rotary positioning device in the traditional technology, it is necessary to provide a rotary positioning device, a positioning system and a welding device with a simple structure and accurate positioning.

[0005] A rotary positioning device includes:

[0006] A turntable, which is provided with a through hole along the axial direction and can be controlled to rotate around an axis;

[0007] A clamping mechanism, including a first clamping component and a second clamping component. Both the first clamping component and the second clamping component include a first positioning block and a second positioning block which are correspondingly arranged on the turntable;

[0008] All the first positioning blocks and the second positioning blocks are axially inserted into the through hole along the turntable and both ends protrude out of the turntable;

[0009] The second positioning blocks of the first clamping component and the second clamping component are respectively movably installed on the turntable along the first radial direction and the second radial direction of the turntable, and can approach or move away from the corresponding first positioning blocks to clamp or loosen the battery conveyed into the through hole along the axial direction;

[0010] The first radial direction intersects with the second radial direction.

[0011] In one embodiment, the first clamping assembly and / or the second clamping assembly further includes a first guide member and a second guide member. The two end faces of the turntable along the axial direction respectively form a first mounting side and a second mounting side. The first guide member is arranged on the first mounting side, and the second guide member is arranged on the second mounting side;

[0012] The two ends of the second positioning block protruding from the turntable are respectively slidably connected to the turntable along the radial direction through the first guide member and the second guide member, and the first guide member and the second guide member cooperate to guide the second positioning block along the radial direction.

[0013] In one embodiment, the first clamping assembly and / or the second clamping assembly further includes a limiting member and a first elastic member. The limiting member is mounted on the turntable, and the first elastic member is arranged between the second positioning block and the limiting member;

[0014] When the second positioning block moves away from the first positioning block along the radial direction, the first elastic member is compressed to store energy; the second positioning block can move close to the first positioning block along the radial direction under the action of the first elastic member.

[0015] In one embodiment, the position of at least one of the first positioning blocks on the turntable is adjustable to adjust the radial distance between the first positioning block and the corresponding second positioning block.

[0016] In one embodiment, the first clamping assembly and / or the second clamping assembly further includes an adjusting screw. The adjusting screw connects the turntable and the first positioning block, and the adjusting screw can be operably rotated to adjust the position of the first positioning block on the turntable.

[0017] In one embodiment, the first clamping assembly and / or the second clamping assembly further includes a third guide member. The two end faces of the turntable along the axial direction respectively form a first mounting side and a second mounting side. The adjusting screw is arranged on the first mounting side, and the third guide member is arranged on the second mounting side;

[0018] When the position of the first positioning block and the turntable is adjusted by the adjusting screw, the third guide member guides the first positioning block along the radial direction.

[0019] In one embodiment, both the first positioning block and the second positioning block are detachably connected to the turntable.

[0020] In one embodiment, the clamping mechanism further includes a clamping driving member, at least one of the second positioning blocks is connected to the clamping driving member, and the clamping driving member is configured to drive the second positioning block to approach and / or move away from the corresponding first positioning block along the radial direction.

[0021] In one embodiment, the first clamping assembly and / or the second clamping assembly further includes a limiting member and a first elastic member. The limiting member is mounted on the turntable, and the first elastic member is disposed between the second positioning block and the limiting member.

[0022] The clamping mechanism further includes a first hook and a second hook. The first hook is connected to the second positioning block, the second hook is connected to the clamping driving member, and the first hook and the second hook pull on each other.

[0023] The clamping driving member can drive the second positioning block to move away from the first positioning block along the radial direction through the second hook and the first hook, and the first elastic member is compressed to store energy. The second positioning block can move closer to the first positioning block along the radial direction under the action of the first elastic member.

[0024] In one embodiment, the rotary positioning device further includes a mounting base and a rotary driving member. The turntable is mounted on the mounting base and is connected to the rotary driving member, and the rotary driving member is configured to drive the turntable to rotate.

[0025] The clamping driving member is mounted on the mounting base.

[0026] A positioning system includes a material pushing device, an end face positioning device, and the above-mentioned rotary positioning device. The material pushing device and the end face positioning device are respectively disposed at two ends of the rotary positioning device. The material pushing device pushes one end face of the battery to push the battery into the through hole of the rotary positioning device. The end face positioning device is configured to abut against the other end face of the battery to position the battery, and the rotary positioning device is configured to position and clamp the battery and drive the battery to rotate.

[0027] A welding device includes a welding device and the above-mentioned positioning system. The welding device is configured to weld the battery clamped and positioned by the rotary positioning device.

[0028] The above-mentioned rotation positioning device, positioning system and welding equipment can clamp the battery from two different directions under the cooperation of the first clamping component and the second clamping component of a set of clamping mechanisms. Compared with the method of clamping the battery by two sets of clamping mechanisms (the two sets of clamping mechanisms are respectively located at both ends of the turntable axis) in the prior art, the structural setting of the rotation positioning device is simplified. At the same time, since the first clamping component and the second clamping component respectively clamp the battery by moving the corresponding second positioning blocks relative to the first positioning blocks, there is no problem of asynchronous movement between the second positioning blocks of the front and rear two sets of clamping mechanisms in the prior art, ensuring the accuracy of positioning. Moreover, since each first positioning block and second positioning block penetrates through the through hole and both ends protrude out of the turntable, the dimension of each positioning block in the axial direction of the turntable is ensured, increasing the contact area with the battery and ensuring the clamping and positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional view of a positioning system provided by an embodiment of the present application;

[0030] Figure 2 It is a plan view of a material pushing device provided by an embodiment of the present application;

[0031] Figure 3 It is Figure 2 a cross-sectional view of the A-A plane of the material pushing device shown in

[0032] Figure 4 It is Figure 2 a structural diagram of the material pushing plate of the material pushing device shown in moving to different positions relative to the mounting plate;

[0033] Figure 5 It is a structural diagram of the battery offset when pushing the battery with the material pushing device in the prior art;

[0034] Figure 6 It is a plan view of a rotation positioning device provided by an embodiment of the present application;

[0035] Figure 7 It is Figure 6 a cross-sectional view of the B-B plane of the rotation positioning device shown in

[0036] Figure 8 It is Figure 6 a cross-sectional view of the C-C plane of the rotation positioning device shown in

[0037] Figure 9 It is Figure 6 a plan view of the partial structure of the rotation positioning device shown in

[0038] Figure 10 It is Figure 9 a cross-sectional view of the D-D plane of the structure shown in

[0039] Figure 11 The Figure 9 sectional view of the E-E plane of the structure shown in

[0040] Description of the reference numerals:

[0041] 100, positioning system; 10, pusher device; 11, pusher driving member; 12, mounting plate; 13, pusher plate; 131, pusher plane; 132, push plate; 133, positioning plate; 1331, body; 1332, push arm; 14, second elastic member; 15, resisting portion; 151, ball; 16, second mounting groove; 17, limiting plate; 18, accommodating cavity; 181, opening; 19, limiting groove; 20, rotary positioning device; 21, turntable; 211, through hole; 212, first mounting side; 213, second mounting side; 22, clamping mechanism; 221, first clamping assembly; 2211, first positioning block; 2212, second positioning block; 2213, first guiding member; 2214, second guiding member; 2215, limiting member; 2216, first elastic member; 2217, adjusting screw; 2218, third guiding member; 222, second clamping assembly; 223, clamping driving member; 224, first hook; 225, second hook; 23, mounting seat; 24, rotary driving member; 30, end face positioning device; 31, positioning surface; 200, battery. Detailed implementation manners

[0042] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0043] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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 thus should not be construed as limiting the present utility model.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be 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", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0048] An embodiment of the present application provides a welding device for welding a battery 200. Optionally, the battery 200 is a blade battery 200, and the welding device is used to weld the housing of the blade battery 200 to the end cover. In other embodiments, the type of the battery 200 is not limited.

[0049] Refer to Figure 1, The welding equipment includes a positioning system 100 and a welding device. The positioning system 100 is used to position the battery 200, and the welding device can weld the battery 200 positioned by the positioning system 100.

[0050] The positioning system 100 includes a feeding device 10, a rotary positioning device 20, and an end face positioning device 30. The feeding device 10 and the end face positioning device 30 are respectively located at both ends of the rotary positioning device 20. The feeding device 10 is used to push the end face of one end of the battery 200 and push it into the rotary positioning device 20. The end face positioning device 30 has a positioning surface 31, and the positioning surface 31 can abut against the other end face of the battery 200 so that the positions of the end faces of the batteries 200 pushed into the rotary positioning device 20 are consistent. The rotary positioning device 20 can clamp and position the battery 200, and the welding device can weld the battery 200 clamped by the rotary positioning device 20. The rotary positioning device 20 can also drive the battery 200 to rotate, so that the welding device can continuously and fully weld all parts around the battery 200. For example, the welding device can laser-weld all parts around the housing to the end cover together.

[0051] In some embodiments, referring to Figures 2 - 4 , the feeding device 10 includes a feeding driving part 11, a mounting plate 12, a feeding plate 13, and a second elastic part 14. The mounting plate 12 is connected to the driving end of the feeding driving part 11, and the second elastic part 14 is arranged between the mounting plate 12 and the feeding plate 13. The feeding driving part 11 can drive the mounting plate 12 to move, so as to drive the second elastic part 14 and the feeding plate 13 to move for feeding. Optionally, the feeding driving part 11 is a cylinder, and the telescopic movement of the piston rod of the cylinder can drive the mounting plate 12, the second elastic part 14, and the feeding plate 13 to move. The second elastic part 14 is a spring, and the spring is arranged between the feeding plate 13 and the mounting plate 12. Of course, in some other embodiments, the type of the feeding driving part 11 is not limited. For example, the feeding driving part 11 can also be a motor, etc. And the type of the second elastic part 14 is not limited either. For example, the second elastic part 14 can also be an elastic rubber part.

[0052] The feeding plate 13 has a feeding plane 131, and the feeding plate 13 contacts the battery 200 through the feeding plane 131 to push the battery 200 into the rotary positioning device 20. Optionally, the feeding driving part 11 can drive the feeding plate 13 to move along a straight line through the mounting plate 12, and the feeding plane 131 intersects with this straight line, specifically perpendicular. In some specific embodiments, the battery 200 is sheet-shaped, and the feeding plate 13 pushes one end face in the length direction of the battery 200 through the feeding plane 131. At this time, the feeding plane 131 is parallel to this end face, and the extending direction of the straight line is parallel to the length direction of the battery 200.

[0053] The pusher device 10 further includes a resisting portion 15 which is rotatably mounted on the side of the mounting plate 12 facing the pusher plate 13. When the pusher plate 13 pushes the battery 200 through the pushing plane 131, the second elastic member 14 is compressed by the force, so that the surface of the pusher plate 13 facing the mounting plate 12 contacts the resisting portion 15. When the pusher plate 13 is subjected to a force, it can slide relative to the mounting plate 12 in a plane parallel to the pushing plane 131 under the action of the first elastic member 14 and the resisting portion 15( Figure 4 The green dashed line in represents the position where the pusher plate 13 can slide within the plane.

[0054] In the above-mentioned pusher device 10, when the pusher plate 13 pushes the battery 200 through the pushing plane 131 and the battery 200 is deflected, resulting in an inclination between the end face and the positioning surface 31 of the end face positioning device 30. When the pusher plate 13 continues to push the battery 200, the battery 200 will apply a force to the pusher plate 13 due to the restriction of the positioning surface 31, and the second elastic member 14 will deform elastically. At this time, the pusher plate 13 slides relative to the mounting plate 12 in a plane parallel to the pushing plane 131 under the elastic deformation of the second elastic member 14 and the resisting action of the resisting portion 15, and there is a slight movement between the pushing plane 131 and the end face of the battery 200. Compared with the pusher device 10 in the prior art (in the prior art, the pusher of the pusher device 10 is fixed and the battery 200 is prone to deflection, as Figure 5 shown, Figure 5 the green dashed line represents the position where the battery 200 is located after deflection, and the black solid line represents the position where the battery 200 is located without deflection), it can compensate for the positioning error between the end face of the battery 200 and the positioning surface 31, so that the end face of the battery 200 is completely attached to the positioning surface 31, finally meeting the requirement of end face consistency. Since the end face positioning of the battery 200 is consistent, when the rotary positioning device 20 performs secondary positioning on the battery 200, the battery 200 will not slide, and it is not easy to cause scratches on the end face of the battery 200. At the same time, during welding, the welding track will not shift and will not burn the pole column, and the scrap rate of the battery 200 is greatly reduced.

[0055] In some embodiments, the resisting portion 15 is a rolling member provided on the mounting plate 12. When the pusher plate 13 is subjected to a force, the rolling member rolls relative to the pusher plate 13 and the mounting plate 12, so that the pusher plate 13 slides relative to the mounting plate 12. Using the rolling member as the resisting portion 15 can reduce the friction between the pusher plate 13 and the resisting portion 15, so as to facilitate the sliding of the pusher plate 13 relative to the mounting plate 12.

[0056] It can be imagined that in some other embodiments, the resisting portion 15 can also be arranged in other ways. For example, the end face of the mounting plate 12 facing the pusher plate 13 directly forms the resisting portion 15, or a boss is provided on the end face of the mounting plate 12 facing the pusher plate 13, and the boss forms the resisting portion 15.

[0057] In some specific embodiments, continue to refer to Figure 4 , the rolling elements include a plurality of balls 151, and the plurality of balls 151 are installed on the mounting plate 12 at intervals. In this way, when the pushing plate 13 pushes the battery 200, the second elastic member 14 is compressed under force, and the pushing plate 13 can contact the plurality of balls 151 and slide relative to the mounting plate 12 under the action of the plurality of balls 151.

[0058] It should be noted here that the plurality of balls 151 are located on the same plane, so that the pushing plate 13 slides in a plane parallel to the pushing plane 131 under the action of the plurality of balls 151.

[0059] Optionally, a first mounting groove is provided on the mounting plate 12, and the balls 151 correspond to the first mounting grooves one by one, and a part of the balls 151 is embedded in the first mounting grooves to ensure that the other part of the balls 151 contacts the pushing plate 13, so that the pushing plate 13 slides relative to the mounting plate 12 under the action of the balls 151.

[0060] In some other embodiments, a plurality of balls 151 can also be arranged in one first mounting groove, which is not limited herein.

[0061] Furthermore, continue to refer to Figure 3 and Figure 4 , second mounting grooves 16 are provided on both the pushing plate 13 and the mounting plate 12, and both ends of the second elastic member 14 are respectively placed in the two second mounting grooves 16 to facilitate the fixing of the second elastic member 14 to the pushing plate 13 and the mounting plate 12. Of course, the second mounting grooves 16 can also be omitted, and the second elastic member 14 can also be connected to the pushing plate 13 and the mounting plate 12 in other ways, which is not limited herein.

[0062] In some embodiments, continue to refer to Figure 2 and Figure 3The pushing device 10 further includes a limiting plate 17, which is connected to the mounting plate 12 and defines an accommodating cavity 18. The accommodating cavity 18 has an opening 181 formed on the limiting plate 17. The pushing plate 13 includes a push plate 132 and a positioning plate 133 that are connected to each other. The push plate 132, the second elastic member 14, and the stopper 15 are all located in the accommodating cavity 18. The push plate 132 is abutted against the limiting plate 17 under the action of the second elastic member 14. The positioning plate 133 extends out of the accommodating cavity 18 through the opening 181. The pushing plane 131 is located on the portion of the positioning plate 133 that extends out of the accommodating cavity 18. With this arrangement, when the pushing device 10 pushes a battery 200 into the rotation positioning device 20 and returns to the initial position to push the next battery 200, since the push plate 132 and the second elastic member 14 are both limited in the accommodating cavity 18, the pushing plate 13 will not be unable to return to the initial position (if there is no limitation of the limiting plate 17, the second elastic member 14 is elastic, and the pushing plate 13 is easy to shake and cannot return to the initial position).

[0063] Further, see Figure 3 and Figure 4 The end of the positioning plate 133 that connects to the push plate 132 has a stepped portion. The stepped portion and the push plate 132 form a limiting groove 19. The limiting plate 17 extends into the limiting groove 19 to limit the push plate 132 from extending out of the accommodating cavity 18. This arrangement not only prevents the push plate 132 from escaping the accommodating cavity 18; at the same time, when the push plate 13 pushes the battery 200 through the positioning plate 133, the limiting plate 17 can also limit the position of the positioning plate 133, preventing the push plate 132 from over-pressing the stopper 15.

[0064] Furthermore, in the pushing direction of the pushing device 100 pushing the battery 200, a first gap is formed between the push plate 132 and the ball bearing 151, so that when the positioning plate 133 pushes the battery 200, a second gap is formed between the push plate 132 and the limiting plate 17. Because the positioning plate 133 forms the second gap with the limiting plate 17 when pushing the battery 200, when the push plate 13 moves relative to the mounting plate 12, there is no friction between the limiting plate 17 and the push plate 13, and the limiting plate 17 does not interfere with the movement of the push plate 13.

[0065] In some embodiments, the positioning plate 133 is detachably mounted on the push plate 132. This facilitates replacement of the positioning plate 133 to accommodate different battery models 200. Optionally, the positioning plate 133 and the push plate 132 are detachably secured by screws. Of course, in other embodiments, the positioning plate 133 can also be detachably connected to the push plate 132 by other means, such as by a snap-fit connection.

[0066] Further, see Figure 3, the middle part of the surface of the positioning plate 133 facing away from the pushing plate 132 is recessed, and the pushing plane 131 is formed on the peripheral part of the pushing plate 13. The peripheral part surrounds the middle part. That is, the positioning plate 133 includes a main body 1331 and a pushing arm 1332. The main body 1331 is connected to the pushing plate 132, and the pushing arm 1332 is connected to the periphery of the end of the main body 1331 away from the pushing plate 132 and protrudes from the main body 1331. In this way, when pushing the battery 200, the middle part of the positioning plate 133 does not contact the battery 200, and the peripheral part contacts the battery 200. In this way, when pushing the battery 200, the middle part of the positioning plate 133 does not contact the battery 200, which can make the pushing plane 131 formed on the peripheral part better fit the end face of the battery 200 and ensure the smoothness of pushing the material.

[0067] Specifically, the positioning plate 133 is made of a non-metallic material to ensure that the surface of the battery 200 will not be scratched when the positioning plate 133 contacts the battery 200.

[0068] In some embodiments, referring to Figure 6 and Figure 7 , the rotary positioning device 20 includes a turntable 21. The turntable 21 is provided with a through hole 211 along the axial direction ( Figure 7 the left-right direction in Figure 7 The arrow in

[0069] The rotary positioning device 20 further includes a clamping mechanism 22. The clamping mechanism 22 includes a first clamping assembly 221 and a second clamping assembly 222. Both the first clamping assembly 221 and the second clamping assembly 222 are installed on the turntable 21. The first clamping assembly 221 and the second clamping assembly 222 clamp the battery 200 along the first radial direction and the second radial direction of the turntable 21 respectively. The turntable 21 can be controlled to rotate around an axis. Specifically, this axis is the central axis of the turntable 21. The turntable 21 can rotate around the central axis to drive the first clamping assembly 221 and the second clamping assembly 222 to rotate, thereby driving the clamped battery 200 to rotate, so as to facilitate the welding device to weld all parts of the circumference of the battery 200.

[0070] Among them, the first radial direction intersects the second radial direction. Specifically, the first radial direction is perpendicular to the second radial direction. The first radial direction is Figure 6 the up-down direction in Figure 6The left - right direction. When the battery 200 is sheet - shaped, the axial direction of the turntable 21 is parallel to the length direction of the battery 200, the first radial direction is parallel to the thickness direction of the battery 200, and the second radial direction is parallel to the width direction of the battery 200. The battery 200 can be conveyed along the length direction to the through - hole 211, and the first clamping assembly 221 and the second clamping assembly 222 clamp the battery 200 from both sides of the thickness direction and the width direction of the battery 200 respectively. In some other embodiments, according to the different shapes of the battery 200, the relationships between the axial direction, the first radial direction, the second radial direction and the directions of the battery 200 itself will change accordingly.

[0071] Continue to refer to Figure 6 and Figure 7 As shown in, both the first clamping assembly 221 and the second clamping assembly 222 include correspondingly arranged first positioning blocks 2211 and second positioning blocks 2212, and both the first positioning blocks 2211 and the second positioning blocks 2212 are installed on the turntable 21. All the first positioning blocks 2211 and all the second positioning blocks 2212 are axially passed through the through - hole 211 along the axial direction of the turntable 21 and both ends protrude outside the turntable 21. Among them, the second positioning blocks 2212 of both the first clamping assembly 221 and the second clamping assembly 222 are movably installed on the turntable 21 to cooperate with the first positioning blocks 2211 to clamp the battery 200. Specifically, the second positioning block 2212 of the first clamping assembly 221 is movably installed on the turntable 21 along the first radial direction to approach or move away from its corresponding first positioning block 2211, so as to clamp or loosen the battery 200 conveyed axially into the through - hole 211 along the first radial direction. The second positioning block 2212 of the second clamping assembly 222 is movably installed on the turntable 21 along the second radial direction to approach or move away from its corresponding first positioning block 2211, so as to clamp or loosen the battery 200 conveyed axially into the through - hole 211 along the second radial direction.

[0072] With the above - mentioned arrangement, before the battery 200 is conveyed into the through - hole 211, both the two second positioning blocks 2212 are far away from the first positioning blocks 2211. After the battery 200 is pushed into the through - hole 211 by the pushing device 100, the two second positioning blocks 2212 move relative to the turntable 21 along the first radial direction and the second radial direction respectively, so as to cooperate with their corresponding first positioning blocks 2211 to clamp and position the battery 200 from two different directions. After the battery 200 is clamped by the clamping assembly, the turntable 21 drives the battery 200 to rotate, and the welding device can weld the battery 200, for example, the welding device can weld the end cap to the housing of the battery 200.

[0073] The above-mentioned rotation positioning device 20 can clamp the battery 200 from two different directions under the cooperation of the first clamping assembly 221 and the second clamping assembly 222 of a set of clamping mechanisms. Compared with the prior art in which the battery 200 is clamped by two sets of clamping mechanisms (the two sets of clamping mechanisms are respectively located at both ends of the axial direction of the turntable 21), the structural setting of the rotation positioning device 20 is simplified. At the same time, since the first clamping assembly 221 and the second clamping assembly 222 respectively move and clamp the battery 200 relative to the corresponding first positioning block 2211 through their respective second positioning blocks 2212, there is no problem of asynchronous movement between the second positioning blocks 2212 of the front and rear two sets of clamping mechanisms in the prior art, ensuring the accuracy of positioning. Moreover, since each first positioning block 2211 and second positioning block 2212 passes through the through hole 211 and both ends protrude out of the turntable 21, the dimensions of each positioning block in the axial direction of the turntable 21 are ensured, increasing the contact area between the positioning block and the battery 200 and ensuring the clamping and positioning effect.

[0074] It should be noted here that, compared with the prior art, the above-mentioned rotation positioning device 20 reduces the number of clamping mechanisms 22, and can also greatly simplify the debugging steps, increasing the convenience of debugging.

[0075] In some embodiments, both the first positioning block 2211 and the second positioning block 2212 are detachably connected to the turntable 21. With such a setting, when the positioning block is worn, it is convenient to replace it with a new one. At the same time, since the rotation positioning device 20 in this application only includes a set of clamping mechanisms, compared with the prior art in which two sets of clamping mechanisms (two sets of clamping mechanisms need to be provided with two sets of front and rear first clamping assemblies 221 and second clamping assemblies 222), the number of positioning blocks is reduced, facilitating the quick replacement of the positioning blocks.

[0076] Continue to refer to Figure 7 and Figure 8 , the rotation positioning device 20 further includes a mounting base 23 and a rotation driving member 24. The turntable 21 is mounted on the mounting base 23 and is connected to the rotation driving member 24. The rotation driving member 24 is used to drive the turntable 21 to rotate, so as to drive the first clamping assembly 221 and the second clamping assembly 222 to rotate. Optionally, the rotation driving member 24 is a motor or a cylinder, etc.

[0077] Refer to Figure 7 , Figure 9 and Figure 10, the first clamping assembly 221 and / or the second clamping assembly 222 further include a first guide member 2213 and a second guide member 2214. On both sides of the two end faces of the turntable 21 along the axial direction, a first mounting side 212 and a second mounting side 213 are respectively formed. The first guide member 2213 is disposed on the first mounting side 212, and the second guide member 2214 is disposed on the second mounting side 213. The second positioning blocks 2212 protruding from both ends of the turntable 21 are respectively slidably connected to the turntable 21 in the radial direction through the first guide member 2213 and the second guide member 2214. The first guide member 2213 and the second guide member 2214 cooperate to guide the second positioning block 2212 in the radial direction. In this way, under the combined guiding action of the first guide member 2213 and the second guide member 2214, it can be ensured that both ends of the second positioning block 2212 in the axial direction are in large-area contact with the battery 200, ensuring the clamping effect.

[0078] In some specific embodiments, both the first clamping assembly 221 and the second clamping assembly 222 include a first guide member 2213 and a second guide member 2214. In this way, the second positioning blocks 2212 of the first clamping assembly 221 and the second clamping assembly 222 move in the radial direction under the combined action of the first guide member 2213 and the second guide member 2214, ensuring that both ends of the second positioning blocks 2212 of the first clamping assembly 221 and the second clamping assembly 222 in the axial direction are in large-area contact with the battery 200, ensuring the clamping effect. In other specific embodiments, it is also possible to set that one of the first clamping assembly 221 and the second clamping assembly 222 includes a first guide member 2213 and a second guide member 2214, while the other only has one guide member or no guide member is provided, which is not limited herein.

[0079] Optionally, both the first guide member 2213 and / or the second guide member 2214 include a first slide rail and a first slider. The first slide rail extends in the radial direction. One of the first slide rail and the first slider is connected to the turntable 21, and the other is connected to the second positioning block 2212. The first slider is slidably engaged with the first slide rail. The second positioning block 2212 moves in the radial direction relative to the turntable 21 under the cooperation of the first slider and the first slide rail.

[0080] It should be noted that in some specific embodiments, it is set that both the first guide member 2213 and the second guide member 2214 include a slide rail and a slider. In other specific embodiments, it is also possible to set that one of the first guide member 2213 and the second guide member 2214 includes a first slide rail and a first slider, while the other guide member adopts other settings.

[0081] Continue to refer to Figure 7, the first clamping assembly 221 and / or the second clamping assembly 222 further include a limiting member 2215 and a first elastic member 2216. The limiting member 2215 is installed on the turntable 21, and the first elastic member 2216 is disposed between the second positioning block 2212 and the limiting member 2215. When the second positioning block 2212 moves radially away from the first positioning block 2211, the first elastic member 2216 is compressed to store energy. The second positioning block 2212 can move radially closer to the first positioning block 2211 under the action of the first elastic member 2216. Since the second positioning block 2212 is away from the first positioning block 2211 before the battery 200 is pushed into the through hole 211, at this time the first elastic member 2216 is compressed to store energy. After the battery 200 is pushed into the through hole 211, the second positioning block 2212 can move closer to the first positioning block 2211 under the elastic force of the first elastic member 2216 to clamp the battery 200, avoiding the need for another structure for the reset of the second positioning block 2212, making the structure of the rotary positioning device 20 simple. Optionally, the first elastic member 2216 is a spring.

[0082] It should be noted here that in some specific embodiments, both the first clamping assembly 221 and the second clamping assembly 222 are provided with a limiting member 2215 and a first elastic member 2216. In some other specific embodiments, it is also possible to provide that one of the first clamping assembly 221 and the second clamping assembly 222 includes a limiting member 2215 and a first elastic member 2216, while the other omits the first elastic member 2216 and the limiting member 2215.

[0083] Continue to refer to Figure 7 , the clamping mechanism 22 further includes a clamping driving member 223. At least one second positioning block 2212 is connected to the clamping driving member 223, and the clamping driving member 223 is used to drive the second positioning block 2212 to move radially closer to and / or away from the first positioning block 2211. In some specific embodiments, both the first clamping assembly 221 and the second clamping assembly 222 include a first elastic member 2216 and a limiting member 2215. The clamping driving member 223 is used to drive the second positioning block 2212 to move radially away from the first positioning block 2211, and the first elastic member 2216 makes the second positioning block 2212 move radially closer to the first positioning block 2211.

[0084] It can be imagined that in some other embodiments, when the first clamping assembly 221 and / or the second clamping assembly 222 omit the limiting member 2215 and the first elastic member 2216, the clamping driving member 223 can also drive the second positioning block 2212 to move radially closer to the first positioning block 2211. In some other embodiments, when the first clamping assembly 221 and / or the second clamping assembly 222 omit the limiting member 2215 and the first elastic member 2216, the clamping driving member 223 can also drive the second positioning block 2212 to move radially closer to and away from the first positioning block 2211, which is not limited here.

[0085] In some specific embodiments, a clamping driving member 223 is correspondingly provided for each second positioning block 2212. The clamping mechanism 22 further includes a first hook 224 and a second hook 225. The first hook 224 is connected to the second positioning block 2212, the second hook 225 is connected to the clamping driving member 223, and the first hook 224 and the second hook 225 pull on each other. The clamping driving member 223 can drive the second positioning block 2212 to move radially away from the first positioning block 2211 through the second hook 225 and the first hook 224, and the first elastic member 2216 is compressed to store energy. The second positioning block 2212 can move radially closer to the first positioning block 2211 under the action of the first elastic member 2216. With this arrangement, the clamping driving member 223 can drive the second positioning block 2212 away from the first positioning block 2211, so that the pushing device 10 can push the battery 200 into the through hole 211; and after the battery 200 is pushed into the through hole 211, the second positioning block 2212 can cooperate with the first positioning block 2211 to clamp the battery 200 under the reset action of the first elastic member 2216, with a simple and reliable structure.

[0086] It should be noted here that when the second positioning block 2212 moves radially closer to the first positioning block 2211 under the action of the first elastic member 2216, the first hook 224 and the second hook 225 are separated, and the movement of the second positioning block 2212 is not restricted. Optionally, the clamping driving member 223 is a cylinder ( Figure 6 and Figure 7 the arrow in represents the telescopic direction of the cylinder piston rod). When the second positioning block 2212 needs to move away from the first positioning block 2211 to avoid the battery 200, the cylinder drives the second hook 225 to move, and then drives the second positioning block 2212 to move through the first hook 224. When the second positioning block 2212 needs to move closer to the first positioning block 2211 to clamp the battery 200, the cylinder drives the second hook 225 to move in the opposite direction, so that the second hook 225 is in a position where it does not interfere with the second positioning block 2212, and the second positioning block 2212 moves closer to the first positioning block 2211 under the action of the first elastic member 2216 to clamp the battery 200.

[0087] In some embodiments, with continued reference to Figure 6 and Figure 7 , the clamping driving member 223 is provided on the mounting seat 23. At this time, the clamping driving member 223 does not rotate with the rotation of the turntable 21, that is, the turntable 21 does not drive the clamping driving member 223 to rotate, and the number of rotating components is reduced, ensuring the smoothness of the rotation of the turntable 21. In some other embodiments, the clamping driving member 223 can also be provided on the turntable 21 and rotate with the rotation of the turntable 21, which is not limited herein.

[0088] In some embodiments, the position of at least one first positioning block 2211 on the turntable 21 is adjustable to adjust the radial distance between the first positioning block 2211 and the corresponding second positioning block 2212. When the first positioning block 2211 and the second positioning block 2212 clamp and position the battery 200, if the clamping degree is too large, it will cause damage to the battery 200. If the clamping degree is too small, there will be a problem of insufficient clamping. By finely adjusting the position of the first positioning block 2211 on the turntable 21, the distance between the second positioning block 2212 and the first positioning block 2211 can be changed, which can accommodate the error of the battery 200, so as to clamp the battery 200 with an appropriate clamping degree, reducing the damage to the battery 200 while ensuring clamping of the battery 200.

[0089] Specifically, the position of the first positioning block 2211 of the first clamping assembly 221 and the second clamping assembly 222 on the turntable 21 is adjustable to adjust the radial distance between the two first positioning blocks 2211 and the corresponding second positioning blocks 2212. Of course, in some other embodiments, it is also possible to set that only the first positioning block 2211 of one clamping assembly is adjustable in position on the turntable 21, which is not limited here.

[0090] Continue to refer to Figure 9 , the first clamping assembly 221 and / or the second clamping assembly 222 includes an adjusting screw 2217. The adjusting screw 2217 connects the turntable 21 and the first positioning block 2211. The adjusting screw 2217 is operably rotated to adjust the position of the first positioning block 2211 on the turntable 21. Optionally, the adjusting screw 2217 is rotatably connected to the turntable 21 and screwed to the first positioning block 2211. When the adjusting screw 2217 is rotated, the first positioning block 2211 can move relative to the turntable 21, changing the distance from the corresponding second positioning block 2212.

[0091] Refer to Figure 8 and Figure 11 , the first clamping assembly 221 and / or the second clamping assembly 222 further includes a third guiding member 2218. The adjusting screw 2217 is disposed on the first installation side 212, and the third guiding member 2218 is disposed on the second installation side 213. When the position of the first positioning block 2211 and the turntable 21 is adjusted by the adjusting screw 2217, the third guiding member 2218 guides the first positioning block 2211 radially to prevent the first positioning block 2211 from deviating.

[0092] In some specific embodiments, both the first clamping assembly 221 and the second clamping assembly 222 include a third guiding member 2218. Thus, when adjusting the position of the first positioning block 2211 of the first clamping assembly 221 and the second clamping assembly 222 on the turntable 21, the first positioning block 2211 is prevented from deviating under the action of the third guiding member 2218. In some other specific embodiments, it is also possible to set that one of the first clamping assembly 221 and the second clamping assembly 222 includes a third guiding member 2218, while the other does not have a guiding member, which is not limited herein.

[0093] Optionally, both the third guiding member 2218 and / or the fourth guiding member include a second sliding rail and a second sliding block. The second sliding rail extends radially. One of the second sliding rail and the second sliding block is connected to the turntable 21, and the other is connected to the first positioning block 2211. The second sliding block cooperates with the second sliding rail. The first positioning block 2211 adjusts its position on the turntable 21 under the guiding action of the second sliding rail and the second sliding block.

[0094] Preferably, the limiting member 2215, the first elastic member 2216 and the adjusting screw 2217 are all arranged on the first installation side 212. Such an arrangement can enable multiple components of the first clamping assembly 221 and the second clamping assembly 222 to be concentratedly arranged on the first installation side 212, ensuring the structural compactness of the rotary positioning device 20.

[0095] Referring to Figure 2 , another embodiment of the present application further provides a positioning system 100 included in the above-mentioned welding equipment. Since the above-mentioned welding equipment has beneficial effects, the positioning system 100 belonging to the above-mentioned welding equipment has the same beneficial effects, which will not be elaborated in detail herein.

[0096] Continuing to refer to FIG. 6, another embodiment of the present application further provides a rotary positioning device 20 included in the above-mentioned positioning system 100. Since the above-mentioned positioning system 100 has beneficial effects, the rotary positioning device 20 belonging to the above-mentioned positioning system 100 has the same beneficial effects, which will not be elaborated in detail herein.

[0097] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0098] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A rotary positioning device, characterized in that, Comprising: A turntable (21) having a through hole (211) axially provided therein and being controllably rotatable about an axis; A clamping mechanism (22) including a first clamping assembly (221) and a second clamping assembly (222), wherein the first clamping assembly (221) and the second clamping assembly (222) both include a first positioning block (2211) and a second positioning block (2212) which are correspondingly arranged and mounted on the turntable (21); All the first positioning blocks (2211) and the second positioning blocks (2212) axially penetrate through the through hole (211) along the axis of the turntable (21) and both ends thereof protrude out of the turntable (21); The second positioning blocks (2212) of the first clamping assembly (221) and the second clamping assembly (222) are respectively movably mounted on the turntable (21) along a first radial direction and a second radial direction of the turntable (21), and can approach or move away from the corresponding first positioning blocks (2211) to clamp or release a battery (200) axially conveyed into the through hole (211); The first radial direction intersects with the second radial direction.

2. The rotary positioning device according to claim 1, wherein The first clamping assembly (221) and / or the second clamping assembly (222) further includes a first guiding member (2213) and a second guiding member (2214). Both end faces of the turntable (21) along the axis respectively form a first mounting side (212) and a second mounting side (213). The first guiding member (2213) is arranged on the first mounting side (212), and the second guiding member (2214) is arranged on the second mounting side (213); Both ends of the second positioning block (2212) protruding out of the turntable (21) are respectively slidably connected to the turntable (21) along the radial direction through the first guiding member (2213) and the second guiding member (2214), and the first guiding member (2213) and the second guiding member (2214) cooperate to guide the second positioning block (2212) along the radial direction.

3. The rotary positioning device according to claim 1, characterized in that, The first clamping assembly (221) and / or the second clamping assembly (222) further includes a limiting member (2215) and a first elastic member (2216). The limiting member (2215) is mounted on the turntable (21), and the first elastic member (2216) is arranged between the second positioning block (2212) and the limiting member (2215); When the second positioning block (2212) moves away from the first positioning block (2211) along the radial direction, the first elastic member (2216) is compressed to store energy; the second positioning block (2212) can approach the first positioning block (2211) along the radial direction under the action of the first elastic member (2216).

4. The rotary positioning device according to claim 1, wherein The position of at least one of the first positioning blocks (2211) on the turntable (21) is adjustable to adjust the radial distance between the first positioning block (2211) and the corresponding second positioning block (2212).

5. The rotational positioning device according to claim 4, wherein The first clamping assembly (221) and / or the second clamping assembly (222) further includes an adjusting screw (2217), the adjusting screw (2217) connecting the turntable (21) to the first positioning block (2211), the adjusting screw (2217) being operably rotatable to adjust the position of the first positioning block (2211) on the turntable (21).

6. The rotational positioning device according to claim 5, wherein The first clamping assembly (221) and / or the second clamping assembly (222) further includes a third guiding member (2218), first mounting sides (212) and second mounting sides (213) being respectively formed on both end face sides of the turntable (21) along the axial direction, the adjusting screw (2217) being disposed on the first mounting side (212), and the third guiding member (2218) being disposed on the second mounting side (213); When the position of the first positioning block (2211) and the turntable (21) is adjusted by the adjusting screw (2217), the third guiding member (2218) guides the first positioning block (2211) along the radial direction.

7. The rotational positioning device according to claim 1, wherein Both the first positioning block (2211) and the second positioning block (2212) are detachably connected to the turntable (21).

8. The rotary positioning device according to claim 1, characterized in that, The clamping mechanism (22) further includes a clamping driving member (223), at least one of the second positioning blocks (2212) being connected to the clamping driving member (223), the clamping driving member (223) being used for driving the second positioning block (2212) to approach and / or move away from the corresponding first positioning block (2211) along the radial direction.

9. The rotational positioning device according to claim 8, characterized in that, The first clamping assembly (221) and / or the second clamping assembly (222) further includes a limiting member (2215) and a first elastic member (2216), the limiting member (2215) being mounted on the turntable (21), and the first elastic member (2216) being disposed between the second positioning block (2212) and the limiting member (2215). The clamping mechanism (22) further includes a first hook (224) and a second hook (225), the first hook (224) being connected to the second positioning block (2212), the second hook (225) being connected to the clamping driving member (223), and the first hook (224) and the second hook (225) pulling on each other; The clamping driving member (223) can drive the second positioning block (2212) to move away from the first positioning block (2211) along the radial direction through the second hook (225) and the first hook (224), and the first elastic member (2216) is compressed to store energy; the second positioning block (2212) can move closer to the first positioning block (2211) along the radial direction under the action of the first elastic member (2216).

10. The rotary positioning device according to claim 9, characterized in that, The rotary positioning device further includes a mounting base (23) and a rotary driving member (24); the turntable (21) is mounted on the mounting base (23) and is connected to the rotary driving member (24), the rotary driving member (24) being used for driving the turntable (21) to rotate; The clamping driving member (223) is installed on the mounting base (23).

11. A positioning system, characterized in that, It includes a pusher device (10), an end face positioning device (30), and a rotary positioning device as described in any one of claims 1-10. The pusher device (10) and the end face positioning device (30) are respectively arranged at both ends of the rotary positioning device (20). The pusher device (10) pushes one end face of the battery (200) to push the battery (200) into the through hole (211) of the rotary positioning device (20). The end face positioning device (30) is used to abut against the other end face of the battery (200) to position the battery (200). The rotary positioning device (20) is used to position and clamp the battery (200) and drive the battery (200) to rotate.

12. A welding device, characterized in that, It includes a welding device and a positioning system as described in claim 11. The welding device is used to weld the battery (200) clamped and positioned by the rotary positioning device (20).

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