Welding device

Abstract

The utility model relates to a welding device, which is used for welding a first welding piece and a second welding piece and comprises a first positioning mechanism, a second positioning mechanism and a welding mechanism. Wherein the first positioning mechanism comprises a first positioning piece and a second positioning piece, a positioning bulge is arranged on the first positioning piece, and the second positioning piece is movably arranged corresponding to the positioning bulge; the second positioning mechanism is movably arranged on one side of the second welding piece in the first direction. The first positioning mechanism enables the first welding piece to abut against the side face, close to the second positioning piece, of the positioning protrusion, and positioning of the first welding piece is completed; the second positioning mechanism adjusts the relative position of the second welding piece relative to the first welding piece in the first direction, the position precision of the first welding piece and the second welding piece is guaranteed, and therefore the welding quality and precision are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a welding device. Background Art

[0002] During the welding process, especially during the welding of the tab and the cap in a cylindrical battery, the positional relationship between the tab and the cap directly affects the welding quality, thus affecting the quality of the battery. However, in the existing welding devices, the positioning accuracy between the two welding parts is poor, and the concentricity requirement between the tab and the cap cannot be guaranteed. Summary of the Invention

[0003] Based on this, in view of the problem of poor positioning effect of the existing welding device, it is necessary to provide a welding device that improves the above-mentioned defects.

[0004] The present application provides a welding device for welding a first welding part and a second welding part, and the welding device includes:

[0005] A first positioning mechanism, including a first positioning member and a second positioning member. A positioning protrusion is provided on the first positioning member, and the second positioning member is movably arranged corresponding to the positioning protrusion to push the first welding part to abut against the side of the positioning protrusion close to the second positioning member;

[0006] A second positioning mechanism, movably arranged on one side of the second welding part along a first direction, and pushing the second welding part to move along the first direction to adjust the relative position of the second welding part relative to the first welding part in the first direction; and

[0007] A welding mechanism, arranged on the side of the second welding part facing away from the first welding part.

[0008] By setting the first positioning mechanism to abut the first welding part against the side of the positioning protrusion close to the second positioning member, the positioning of the first welding part is completed. Then, the relative position of the second welding part relative to the first welding part in the first direction is adjusted through the second positioning mechanism, so as to ensure the positional accuracy of the first welding part and the second welding part. On the one hand, the positioning accuracy can be improved to ensure the welding quality; on the other hand, when the size of the second welding part changes, only its position in the first direction needs to be adjusted to achieve precise positioning, which can adapt to different sizes of the second welding part and improve the compatibility of the welding device.

[0009] In some embodiments, an abutting portion is provided on the side of the second positioning member close to the positioning protrusion, and a concave portion is formed by the surface of the abutting portion close to the positioning protrusion being recessed inward.

[0010] In some embodiments, the bottom surface of the recessed portion is a plane and the side surface is a curved surface; and / or the shape of the side surface of the positioning protrusion close to the second positioning member is the same as the shape of the surface of the first welding member that abuts against the positioning protrusion.

[0011] In some embodiments, the welding device further includes a frame, the second positioning member is movably disposed on the frame, and a first elastic member is disposed between the frame and the second positioning member to push the first welding member into abutment with the side surface of the positioning protrusion close to the second positioning member.

[0012] In some embodiments, a guide hole is provided on the frame, the second positioning member includes a guide rod, the abutting portion is disposed at one end of the guide rod close to the positioning protrusion, the guide rod passes through the guide hole, and the first elastic member is sleeved on the guide rod.

[0013] In some embodiments, the second positioning member further includes a sleeve, the sleeve is disposed between the guide rod and the guide hole, and there is a limiting distance between the sleeve and the abutting portion.

[0014] In some embodiments, the second positioning mechanism includes a pushing portion and a driving portion drivingly connected to the pushing portion, and the pushing portion is movably disposed on one side of the second welding member along the first direction X.

[0015] In some embodiments, the welding device further includes a fixture, the fixture includes a first clamping portion and a second clamping portion spaced apart along a second direction, and an accommodating portion for accommodating the second welding member is formed between the first clamping portion and the second clamping portion, and the second direction is perpendicular to the first direction;

[0016] And the distance between the first clamping portion and the second clamping portion in the second direction is variable to adjust the size of the accommodating portion.

[0017] In some embodiments, the fixture further includes:

[0018] A connecting assembly, including a first connecting member and a second connecting member movable along the second direction, the first connecting member is connected to the first clamping portion, and the second connecting member is connected to the second clamping portion.

[0019] In some embodiments, the fixture further includes a fixture driving member, the fixture driving member includes: a second elastic member disposed between the first connecting member and the second connecting member; a convex portion disposed on the first clamping portion; and a guiding portion abutting against the convex portion to drive the convex portion to move along the second direction.

[0020] In some embodiments, the welding mechanism includes a pressing member movably disposed on a side of the second welding member away from the first welding member along a second direction perpendicular to the first direction to press the first welding member and the second welding member together.

[0021] In some embodiments, the welding mechanism further includes a dust removing member communicatively disposed with the pressing member.

[0022] In some embodiments, the second positioning member is movably disposed along the first direction corresponding to the positioning protrusion to push the first welding member along the first direction to abut against a side of the positioning protrusion close to the second positioning member.

[0023] In some embodiments, the first positioning member further includes a suction member for adsorbing and fixing the first welding member.

[0024] In some embodiments, the suction member includes a suction portion and a negative pressure portion communicatively disposed with the suction portion, and the suction portion is used for sucking the first welding member.

[0025] In some embodiments, the welding device further includes a frame and a transfer mechanism, and the transfer mechanism includes a rotating assembly rotatably disposed on the frame and a gripping assembly movably disposed on the rotating assembly along a preset direction.

[0026] In some embodiments, the rotating assembly includes: a mounting member rotatably disposed on the frame; and a connecting member, and the gripping assembly is disposed on the connecting member;

[0027] A guide rail extending along the preset direction is disposed on the mounting member, and a slider is disposed on the connecting member and movably disposed on the guide rail; or a guide rail extending along the preset direction is disposed on the connecting member, and a slider is disposed on the mounting member and movably disposed on the guide rail.

[0028] In some embodiments, the transfer mechanism further includes: a push rod rotatably disposed on the frame, the push rod including a first pushing portion, and one end of the first pushing portion away from the frame pushes the connecting member to move along the preset direction during rotation; and a third elastic member disposed on a side of the connecting member away from the push rod, and one end of the third elastic member abuts against the connecting member and the other end abuts against the mounting member.

[0029] In some embodiments, the push rod further includes a second pushing portion, the second pushing portion is perpendicular to and intersects the first pushing portion at a rotation center of the push rod and the frame, and one end of the second pushing portion away from the frame pushes the connecting member to move along the preset direction during rotation.

[0030] In some embodiments, the welding device further includes: a first conveyor line on which a plurality of pallets are provided, and the first conveyor line conveys the plurality of pallets; and / or a second conveyor line on which a plurality of the first positioning members are provided, and the second conveyor line is configured to convey the plurality of the first positioning members;

[0031] The transfer mechanism is disposed between the first conveyor line and the second conveyor line and is configured to transfer the first welding member from the first conveyor line to the second conveyor line.

[0032] In some embodiments, a detection member is further provided on the second conveyor line for detecting the first welding member on the first positioning member.

[0033] In some embodiments, a detection block is further provided on the second conveyor line, and the detection block is correspondingly arranged with the first positioning member to detect the position of the first positioning member. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of the welding device in an embodiment of the present invention;

[0035] Figure 2 is Figure 1 a top view of;

[0036] Figure 3 is Figure 1 a front view of;

[0037] Figure 4 is Figure 3 a partial enlarged view of position A in;

[0038] Figure 5 is Figure 3 a partial enlarged view of position B in;

[0039] Figure 6 is a schematic structural diagram of the first positioning mechanism in an embodiment of the present invention;

[0040] Figure 7 is Figure 6 a cross-sectional view taken along C-C;

[0041] Figure 8 is Figure 7 a partial enlarged view of position D in;

[0042] Figure 9 is a schematic structural diagram of the fixture and the second positioning mechanism in an embodiment of the present invention;

[0043] Figure 10 is Figure 10 a partial enlarged view of position E in;

[0044] Figure 11 is the right view of Figure 10 ;

[0045] Figure 12 is Figure 12 the enlarged partial view of position F in

[0046] Figure 13 is the structural schematic diagram of the welding mechanism in the embodiment of the present invention;

[0047] Figure 14 is the structural schematic diagram of the transfer mechanism in the horizontal posture in the embodiment of the present invention;

[0048] Figure 15 is Figure 14 the front view of

[0049] Figure 16 is the structural schematic diagram of the transfer mechanism in the vertical posture in the embodiment of the present invention;

[0050] Figure 17 is Figure 16 the right view of

[0051] Explanation of reference numerals:

[0052] 1 First positioning mechanism; 11 First positioning member, 111 Positioning protrusion, 112 Adsorbing member, 1121 Adsorbing portion, 1122 Negative pressure portion; 12 Second positioning member, 121 Abutting portion, 1211 Concave portion, 12111 Bottom surface, 12112 Side surface; 122 First elastic member; 123 Guide rod; 124 Sleeve;

[0053] 2 Second positioning member; 21 Pushing portion; 22 Driving portion;

[0054] 3 Welding mechanism; 31 Pressing member; 32 Dust removing member, 33 Laser emitting member;

[0055] 4 Frame; 41 Guide hole;

[0056] 5 Fixture; 51 First clamping portion; 52 Second clamping portion; 53 Accommodating portion; 54 Connection assembly, 541 First connecting member, 5411 Guide rail, 542 Second connecting member, 5421 Slide block; 55 Fixture driving member, 551 Second elastic member, 552 Convex portion, 553 Guide portion;

[0057] 6 Transfer mechanism; 61 Rotating assembly, 611 Mounting member, 6111 Guide rail, 612 Connecting member, 6121 Slide block; 62 Gripping and taking assembly; 63 Pushing rod, 631 First pushing portion, 632 Second pushing portion; 64 Third elastic member;

[0058] 7 First conveyor line; 71 Tray;

[0059] 8 Second conveyor line; 81 Detection piece; 82 Detection block;

[0060] 9 First welding piece;

[0061] 10 Second welding piece;

[0062] S Limit distance;

[0063] X First direction;

[0064] Y Second direction. Detailed implementation manners

[0065] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention 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 invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0066] In the description of the present invention, 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 drawings, and are only for the convenience of describing the present invention 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 a limitation of the present invention.

[0067] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0068] In the present invention, unless otherwise clearly specified or defined, 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 an integral body; 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 defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified or defined, 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 indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level 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 is at a lower horizontal level than the second feature.

[0070] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can 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 can 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 only for the purpose of illustration and do not represent the only implementation.

[0071] For a clearer understanding of the embodiments of the present application, the following is combined with Figures 1 to 17 to describe the embodiments of the present application in detail.

[0072] As Figures 1 to 17 shown, the present application provides a welding device for welding a first welding piece 9 and a second welding piece 10. The welding device includes a first positioning mechanism 1, a second positioning mechanism 2 and a welding mechanism 3. Among them, the first positioning mechanism 1 includes a first positioning member 11 and a second positioning member 12. A positioning protrusion 111 is provided on the first positioning member 11, and the second positioning member 12 is movably arranged corresponding to the positioning protrusion 111 to push the first welding piece 9 to abut against the side of the positioning protrusion 111 close to the second positioning member 12; the second positioning mechanism 2 is movably arranged on one side of the second welding piece 10 along the first direction X to push the second welding piece 10 to move along the first direction X to adjust the relative position of the second welding piece 10 relative to the first welding piece 9 in the first direction X; the welding mechanism 3 is arranged on the side of the second welding piece 10 facing away from the first welding piece 9.

[0073] The first welding part 9 and the second welding part 10 can be any components that need to be welded together. For example, during the battery production process, the first welding part 9 and the second welding part 10 can be the cap and the battery respectively. An ear is provided at one end of the battery. By adjusting the relative positions of the cap and the battery, the positions of the cap and the ear are ensured, and the welding accuracy is guaranteed.

[0074] The second positioning part 12 is movably arranged corresponding to the positioning protrusion 111, that is, the second positioning part 12 is arranged corresponding to the positioning protrusion 111 and the second positioning part 12 is movably arranged to move away from or close to the positioning protrusion. It should be noted that it is only necessary for the second positioning part 12 to correspond to the positioning protrusion 111, that is, the two can be in any direction parallel to the plane on which the first welding part 9 is placed on the first positioning part 11 (that is, Figure 6 any direction within the plane shown), and the corresponding second positioning part 12 is movably arranged along the direction towards the positioning protrusion 111 to move close to the positioning protrusion 111 so as to push the first welding part 9 to abut against the side surface of the positioning protrusion 111 close to the second positioning part 12.

[0075] Among them, the movable arrangement of the second positioning part 12 can be realized by a guide rail slider mechanism, or can also be realized by a gear rack mechanism or a screw mechanism. For example, the second positioning part 12 is connected to the nut of the screw mechanism. When the screw is rotated, the nut drives the second positioning part 12 to move along the extension direction of the screw. By setting the first positioning mechanism 1, the first welding part 9 is placed on the first positioning part 11, and then the second positioning part 12 pushes the first welding part 9 to abut against the positioning protrusion 111, realizing the positioning of the first welding part 9.

[0076] The second positioning mechanism 2 is movably arranged on one side of the second welding part 10 along the first direction X. Similarly, the movable arrangement of the second positioning mechanism can be realized by a guide rail slider mechanism, or can also be realized by a gear rack mechanism or a screw mechanism. By setting the positioning mechanism 2 to push the second welding part 10 to move along the first direction X, the relative positions of the first welding part 9 and the second welding part 10 in the first direction are adjusted, and the positioning accuracy of the two is guaranteed.

[0077] In addition, the movable arrangement of the second positioning mechanism 2 along the first direction X can also adapt to different sizes of the second welding part 10. For example, when welding the battery ear and the cap, due to the battery specifications or the manufacturing errors in the previous processes, the lengths of the ears protruding may be different. By moving the first positioning mechanism 2, the positions of the ears can be adjusted, the relative positions between the ears and the cap are ensured, and the welding quality of the two is improved.

[0078] The welding mechanism 3 refers to a component that can emit laser light to weld the first welding part 9 and the second welding part 10 together. Since the first positioning part 11 is provided on the side of the first welding part 9 facing away from the second welding part 10, arranging the welding mechanism 3 on the side of the second welding part 10 facing away from the first welding part 9 can avoid interference between the welding mechanism 3 and the first positioning part 11.

[0079] By arranging the first positioning mechanism 1 to abut the first welding part 9 against the side of the positioning protrusion 111 close to the second positioning part 12, the positioning of the first welding part 9 is completed. Then, the relative position of the second welding part 10 relative to the first welding part 9 in the first direction X is adjusted through the second positioning mechanism 2, thereby ensuring the position accuracy of the first welding part 9 and the second welding part 10. On the one hand, the positioning accuracy can be improved to ensure the welding quality; on the other hand, when the size of the second welding part 10 changes, only its position in the first direction X needs to be adjusted to achieve precise positioning, which can adapt to second welding parts 10 of different sizes and improve the compatibility of the welding device.

[0080] As Figures 6 to 8 shown, in some embodiments, an abutting part 121 is provided on the side of the second positioning part 12 close to the positioning protrusion 111, and a concave part 1211 is formed by the surface of the abutting part 121 close to the positioning protrusion 111 being recessed inward.

[0081] By arranging the concave part 1211, the first welding part 9 can be limited in the concave part. On the one hand, when the first welding part 9 is placed in the first positioning mechanism 1, pre-positioning of the first welding part 9 can be performed to improve the positioning accuracy; on the other hand, the first welding part 9 can be limited to prevent the first welding part 9 from deflecting when it moves under the push of the second positioning part 12, ensuring the positioning accuracy.

[0082] As Figure 8 shown, in some embodiments, the bottom surface 12111 of the concave part 1211 is a plane, and the side surface 12112 is a curved surface; and / or the shape of the side of the positioning protrusion 111 close to the second positioning part 12 is the same as the shape of the surface of the first welding part 9 that abuts against the positioning protrusion.

[0083] In some embodiments, the bottom surface 12111 of the recess 1211 is a plane, and the side surface 12112 is a curved surface. On the one hand, by setting the bottom surface 12111 of the recess 1211 as a plane, when the abutting portion 121 abuts against the first welding part 9, the first welding part 9 can stably abut on the bottom surface 12111, avoiding the skew of the first welding part 9 or even its detachment from the recess under the push of the second positioning part 12, and ensuring the positioning accuracy of the first welding part 9. On the other hand, by setting the side surface 12112 of the recess 1211 as a curved surface, when the first welding part 9 is placed into the recess 1211, it can be guided into the recess 1211 along the curved surface and abut on the plane at the bottom, facilitating the positioning of the first welding part 9.

[0084] In some other embodiments, the shape of the side surface of the positioning protrusion 111 close to the second positioning part 12 is the same as the shape of the surface of the first welding part 9 that abuts against the positioning protrusion. For example, when the surface of the first welding part 9 that abuts against the positioning protrusion 111 is arc-shaped, the shape of the side surface of the positioning protrusion 111 close to the second positioning part 12 is also arc-shaped; when the surface of the first welding part 9 that abuts against the positioning protrusion 111 is a plane, the shape of the side surface of the positioning protrusion 111 close to the second positioning part 12 is also a plane. By setting the shape of the side surface of the positioning protrusion 111 close to the second positioning part 12 to be the same as the shape of the surface of the first welding part 9 that abuts against the positioning protrusion, the area of the abutting surface between the positioning protrusion 111 and the first welding part 9 can be increased, ensuring the relative position of the first welding part 9 on the first positioning part 11 and improving the positioning accuracy.

[0085] In still some other embodiments, the bottom surface 12111 of the recess 1211 is a plane, the side surface 12112 is a curved surface, and the shape of the side surface of the positioning protrusion 111 close to the second positioning part 12 is the same as the shape of the surface of the first welding part 9 that abuts against the positioning protrusion. The relative position of the first welding part 9 in the first positioning mechanism 1 can be ensured to the greatest extent, and the positioning accuracy can be improved.

[0086] As Figure 6 and Figure 7 shown, in some embodiments, the welding device 1 further includes a frame 4. The second positioning part 12 is movably arranged on the frame 4, and a first elastic part 122 is arranged between the frame 4 and the second positioning part 12 to push the first welding part 9 to abut against the side surface of the positioning protrusion 111 close to the second positioning part 12.

[0087] The frame 4 refers to a component that is relatively stationary with respect to the ground. By movably arranging the second positioning part 12 on the frame 4, it is convenient to adjust the moving distance and direction of the second positioning part 12.

[0088] The movable setting between the second positioning member 12 and the frame 4 can be achieved by a guide rail slider mechanism, or by a rack and pinion or screw mechanism. The embodiments of the present application do not limit this.

[0089] A first elastic member 122 is provided between the frame 4 and the second positioning member 12. The first elastic member 122 can be a component made of an elastic material such as rubber, or a spring. Specifically, the first elastic member 122 can be provided between two opposite surfaces of the frame 4 and the second positioning member 12. At this time, the first elastic member 122 can be clamped between the two surfaces, or recesses can be provided on the two surfaces to accommodate the first elastic member 122 to prevent the first elastic member 122 from disengaging from between the two opposite surfaces. It should be noted that the depth of the recess at this time should be less than the length of the first elastic member 122 to ensure that the first elastic member 122 can be compressed.

[0090] By providing the first elastic member 122, on the one hand, when the first welding member 9 is placed into the first positioning mechanism 1, the distance between the abutting portion 121 and the positioning protrusion 111 can be increased by compressing the first elastic member 122, facilitating the placement of the first welding member 9 into the recess 1211; on the other hand, after the first welding member 9 is placed into the recess 1211, the first welding member 9 can be abutted against the positioning protrusion 111 under the driving force of the elastic force of the first elastic member 122 to ensure the position of the first welding member 9 in the first positioning mechanism 1 and improve the positioning accuracy. By providing the first elastic member 122, the structure is simple, the operation is convenient, and no other driving structure is required.

[0091] As Figures 6 to 8 shown, in some embodiments, a guide hole 41 is provided on the frame 4, the second positioning member 12 includes a guide rod 123, the abutting portion 121 is provided on one side of the guide rod 123 close to the positioning protrusion 111, the guide rod 123 is inserted through the guide hole 41, and the first elastic member 122 is sleeved on the guide rod 123.

[0092] The cross-sectional shape of the guide rod 123 can be a regular shape such as a circle or a square, or an irregular shape composed of an arc and / or a straight line. It should be noted that the cross-sectional shape of the guide rod 123 corresponds to the cross-sectional shape of the guide hole 41 to ensure that the guide rod 123 can be inserted into the guide hole 41 and can move relative to the guide hole 41.

[0093] The abutting portion 121 and the guide rod 123 can be integrally formed, or can be separately manufactured and then assembled together. When the abutting portion 121 and the guide rod 123 are separately manufactured and assembled, the two can be connected by a detachable connection method such as snap connection or threaded connection, or can be connected by a non-detachable connection method such as welding or bonding. The embodiments of the present application do not limit this.

[0094] The first elastic member 122 is sleeved on the guide rod 123, which can prevent the first elastic member 122 from detaching from the frame 4 and the second positioning member 12. Specifically, an installation protrusion can be provided on the guide rod 123, with one end of the first elastic member 122 abutted against the installation protrusion and the other end abutted against the corresponding surface of the frame 4. When the guide rod 123 moves away from the first positioning member 11, the first elastic member 122 is compressed, increasing the distance between the positioning protrusion 111 and the second positioning member 12, facilitating the placement of the first welding member 9. After the first welding member 9 is placed between the positioning protrusion 111 and the second positioning member 12, the compressed first elastic member 122 can provide an elastic force to make the first welding member 9 abut against the positioning protrusion 111.

[0095] The relative movement of the second positioning member 12 relative to the frame 4 is realized by providing the guide hole 41 and the guide rod 123, with a simple structure and reliable movement.

[0096] As Figures 6 to 8 shown, in some embodiments, the second positioning member 12 further includes a sleeve 124. The sleeve 124 is disposed between the guide rod 123 and the guide hole 41, and there is a limiting distance S between the sleeve 124 and the abutting portion 121.

[0097] On the one hand, by providing the sleeve 124, the friction between the guide rod 123 and the guide hole 41 can be transferred to the guide rod 123 and the sleeve 124, playing a protective role for the frame 4, because the sleeve 124 is easier to replace after wear compared with the frame 4. On the other hand, by providing the sleeve 124, without increasing the volume of the welding device, the contact distance between the sleeve and the guide rod 123 can be increased by increasing the length of the sleeve, enhancing the guiding effect on the guide rod 123 and preventing the guide rod 123 from shifting during movement.

[0098] In addition, by providing the sleeve 124, a limiting distance S is formed between the sleeve 124 and the abutting portion 121. When the second positioning member 12 moves away from the first positioning member 11, the movement distance of the second positioning member 12 can be prevented from being too large to damage the first elastic member 122 through the limiting of the abutting portion 121 by the sleeve 124, improving the service life of the welding device.

[0099] As Figure 1 、 Figure 3 、 Figure 4 、 Figure 11 and Figure 12 shown, in some embodiments, the second positioning mechanism 2 includes a pushing portion 21 and a driving portion 22 drivingly connected to the pushing portion 21. The pushing portion 21 is movably disposed on one side of the second welding member 10 along the first direction X.

[0100] The pushing part 21 refers to the component that pushes the second welding part 10 to move in the first direction X. The movable setting of the pushing part 21 can be achieved through a guide rail slider, or through a rack and pinion mechanism or a screw mechanism.

[0101] In some embodiments, the driving part 22 can be a motor. For example, when the movable setting of the pushing part 21 is achieved through a rack and pinion mechanism, the rack is arranged to extend in the first direction X, the pushing part 21 is fixedly connected to the rack, and the motor drives the gear to rotate, thereby driving the rack and the pushing part 21 to move in the first direction X; or when the movable setting of the pushing part 21 is achieved through a screw mechanism, the screw is arranged to extend in the first direction X, the pushing part 21 is fixedly connected to the nut, and the motor drives the screw to rotate, thereby driving the nut and the pushing part 21 to move along the first direction X.

[0102] In some other embodiments, the driving part 22 can also be an electric cylinder, a cylinder or a hydraulic cylinder. For example, when the movable setting of the pushing part 21 is achieved through a guide rail slider, the guide rail is arranged to extend in the first direction X, the pushing part 21 is fixedly connected to the slider, and the slider is driven to move along the guide rail by an electric cylinder, a cylinder or a hydraulic cylinder, thereby realizing the movement of the pushing part 21 in the first direction X.

[0103] By setting the pushing part 21 and the driving part 22, the second positioning mechanism 2 realizes the movement of the second welding part 10 in the first direction X, with a simple structure and facilitating the adjustment of the relative positions of the second welding part 10 and the first welding part 9.

[0104] As Figure 4 、 Figures 9 to 12 shown, in some embodiments, the welding device further includes a fixture 5. The fixture 5 includes a first clamping part 51 and a second clamping part 52 that are spaced apart along the second direction Y. A receiving part 53 for accommodating the second welding part 10 is formed between the first clamping part 51 and the second clamping part 52. The second direction Y is perpendicular to the first direction X; and the distance between the first clamping part 51 and the second clamping part 52 in the second direction Y is variable to adjust the size of the receiving part 53.

[0105] The fixture 5 refers to the component that clamps and fixes the second welding part 10.

[0106] In some embodiments, the first clamping part 51 and the second clamping part 52 can be baffles extending along the third direction. The second welding part 10 is clamped and fixed in the receiving part 53 through the baffles to realize the fixation of the second welding part 10. Among them, the third direction is perpendicular to the first direction and the second direction.

[0107] In some other embodiments, when the second welding part 10 is cylindrical, for example, when welding the tab and the cap of a cylindrical battery, the first clamping part 51 and / or the second clamping part 52 can be a component composed of a first cylinder and a second cylinder arranged at intervals along the third direction. The first cylinder and the second cylinder can be a complete cylinder or a semi-cylinder. When the first cylinder and the second cylinder are complete cylinders, they can be fixed cylinders or cylinders that can rotate around their own axes. This application does not limit this. When the first cylinder and the second cylinder are semi-cylinders, half of the cylinder should face another fixed part to form the accommodating part 53. It should be noted that the first cylinder and the second cylinder can be the same structure among the above several structures, or a combination of different structures among the above several structures. When one of the first clamping part 51 and the second clamping part 52 is a component composed of a first cylinder and a second cylinder, the other can also be the above-mentioned baffle structure.

[0108] The distance between the first clamping part 51 and the second clamping part 52 in the second direction Y is variable. Specifically, one of the first clamping part 51 and the second clamping part 52 can move along the second direction Y, or both the first clamping part 51 and the second clamping part 52 can move along the second direction Y. In addition, the change in the distance between the first clamping part 51 and the second clamping part 52 in the second direction Y can be achieved through a guide rail slider mechanism, or can also be achieved through a connecting rod mechanism or a rack and pinion mechanism. This application embodiment does not limit this.

[0109] By setting the fixture 5, the clamping and loosening of the second welding part 10 can be achieved by changing the distance between the first clamping part 51 and the second clamping part 52 in the second direction Y. For example, when the relative position of the second welding part 10 needs to be adjusted, the distance between the first clamping part 51 and the second clamping part 52 in the second direction Y becomes larger, so as to loosen the second welding part 10. At this time, the second welding part 10 can be pushed by the second positioning mechanism 2 to adjust the relative position of the second welding part 10 and the first welding part 9 in the first direction X. After the adjustment is completed, the distance between the first clamping part 51 and the second clamping part 52 in the second direction Y becomes smaller, which can achieve the clamping and fixing of the second welding part 10, prevent the second welding part 10 from shifting, and ensure the positioning accuracy.

[0110] Such as Figure 4 、 Figure 10 and Figure 12As shown, in some embodiments, the fixture 5 further includes a connection assembly 54. The connection assembly 54 includes a first connection member 541 and a second connection member 542 that are movable along the second direction Y. The first connection member 541 is connected to the first clamping portion 51, and the second connection member 542 is connected to the second clamping portion 52.

[0111] The movable connection between the first connection member 541 and the second connection member 542 can adopt the connection method of a guide rail and a slider, or the connection method of a gear and a rack. For example, in some embodiments, one of the first connection member 541 and the second connection member 542 is set as a guide rail extending along the second direction Y, and the other is set as a slider adapted to the guide rail, and the movable connection between the first connection member 541 and the second connection member 542 is realized through the guide rail-slider mechanism.

[0112] The connection between the first connection member 541 and the first clamping portion 51 can adopt detachable connection methods such as threaded connection and snap connection, or non-detachable connection methods such as welding and bonding. Similarly, the connection between the second connection member 542 and the second clamping portion 52 can adopt detachable connection methods such as threaded connection and snap connection, or non-detachable connection methods such as welding and bonding.

[0113] By setting the first connection member 541 and the second connection member 542, the movable connection between the first clamping portion 51 and the second clamping portion 52 can be realized, and further the adjustment of the size of the accommodating portion 53 can be realized.

[0114] As Figure 4 、 Figure 10 and Figure 12 shown, in some embodiments, the fixture 5 further includes a fixture driving member 55. The fixture driving member 55 includes a second elastic member 551, a convex portion 552, and a guiding portion 553. Among them, the second elastic member 551 is disposed between the first connection member 541 and the second connection member 542; the convex portion 552 is disposed on the first clamping portion 51; the guiding portion 553 abuts against the convex portion 552 to drive the convex portion 552 to move along the second direction Y.

[0115] The second elastic member 551 can be a component made of an elastic material such as rubber, or a spring. The second elastic member 551 can be detachably clamped between two opposite surfaces of the first connection member 541 and the second connection member 542. Specifically, recessed portions can be provided on two opposite surfaces of the first connection member 541 and / or the second connection member 542, and the second elastic member 551 is disposed in the recessed portions. At this time, it should be noted that the length of the second elastic member 551 should be greater than the recessed depth of the recessed portion to ensure that the second elastic member 551 can be compressed. Of course, the second elastic member 551 can also be directly fixedly disposed on two opposite surfaces of the first connection member 541 and / or the second connection member 542.

[0116] By providing the second elastic member 551, on the one hand, when the external force on the guiding portion 553 is removed, the first connecting member 541 can return to the clamping position under the action of the elastic force without the need for an additional driving force; on the other hand, the second elastic member 551 can also provide an elastic force for the first connecting member 541 to ensure that the second welded part 10 can be clamped and fixed between the first clamping portion 51 and the second clamping portion 52 under the action of the elastic force, and the second welded part 10 will not be damaged due to excessive clamping force.

[0117] The convex portion 552 is provided on the first clamping portion 51. The two can be integrally formed or separately manufactured and then assembled together. When assembling, a detachable connection method such as snap connection or a non-detachable connection method such as welding can be used between the two. In some embodiments, the convex portion 552 can be provided as a roller that can rotate about its own axis. By providing the convex portion 552 as a roller that can rotate about its own axis, the friction between the convex portion 552 and the guiding portion 553 can be reduced when the convex portion 552 abuts against the guiding portion 553, improving the service life of the fixture 5.

[0118] The guiding portion 553 is a component that can move along the second direction Y. When the guiding portion 553 moves along the second direction Y, it drives the cam 552 abutting against the guiding portion 553 to move along the second direction Y, and further drives the first clamping portion 51 to move upward along the second direction Y to adjust the size of the accommodating portion 53.

[0119] Specifically, as Figure 4 and Figure 10 shown, in some embodiments, the first connecting member 541 includes a shaft portion extending along the second direction Y, the second connecting member 542 includes a hole portion, and the shaft portion is disposed through the hole portion; the second elastic member 551 is sleeved on the shaft portion, and one end of the second elastic member 551 abuts against the first connecting member 541, and the other end abuts against the second connecting member 542. Among them, the cross-sectional shape of the shaft portion can be a regular shape such as a circle or a square, or an irregular shape. The hole portion is in a shape corresponding to the shaft portion to ensure that the hole portion can be penetrated on the shaft portion and the hole portion can move along the shaft portion. The movable connection between the first connecting member 541 and the second connecting member 542 is realized through the cooperation of the shaft portion and the hole portion, and the structure is simple and the movement is reliable.

[0120] As Figure 4 and Figure 13 shown, in some embodiments, the welding mechanism 3 includes a pressing member 31. The pressing member 31 is movably disposed along the second direction Y on the side of the second welded part 10 away from the first welded part 9 to press the first welded part 9 and the second welded part 10, and the second direction Y is perpendicular to the first direction X.

[0121] Similarly, the movement of the pressing member 31 in the second direction Y can be realized by a guide rail slider mechanism, or can also be realized by a rack and pinion mechanism or a screw mechanism.

[0122] By setting that the pressing member 31 can move along, it is ensured that the second welded part 10 and the first welded part 9 are closely attached together, preventing problems such as false soldering caused by the existence of a gap between the two, and ensuring the welding quality.

[0123] In some embodiments, the pressing member 31 has a hollow structure to form a welding path inside the pressing member 31, preventing the laser generated by the laser emitting member 33 from being blocked and affecting the welding quality.

[0124] Such as Figure 4 and Figure 13 As shown, in some embodiments, the welding mechanism 3 further includes a dust removal member 32, and the dust removal member 32 is communicated with the pressing member 31.

[0125] The dust removal member 32 is communicated with the pressing member 31. In some embodiments, the dust removal member 32 can be directly arranged on the side wall of the pressing member 31 to reduce the distance between the dust removal member 32 and the pressing member 31 and increase the dust removal efficiency; in other embodiments, the communication between the dust removal member 32 and the pressing member 31 can also be realized through connecting parts such as a conduit.

[0126] By setting the dust removal member 32, the slag and other particles and smoke generated during the welding process can be sucked into the dust removal member 32, preventing the slag and other particles from blocking the laser generated by the laser emitting member 33 and improving the welding quality.

[0127] In some embodiments, the welding mechanism 3 further includes a protective gas mechanism, and the protective gas mechanism is communicated with the pressing member 31 to convey protective gases such as nitrogen and carbon dioxide to the welding part during the welding process to improve the welding quality.

[0128] Such as Figure 1 、 Figure 2 As shown, in some embodiments, the second positioning member 12 is movably arranged corresponding to the positioning protrusion 111 in the first direction X to push the first welded part 9 to abut against the side surface of the positioning protrusion 111 close to the second positioning member 12 in the first direction X.

[0129] The second positioning member 12 is movably arranged corresponding to the positioning protrusion 111 in the first direction X, that is, the moving direction of the second positioning member 12 is the same as the moving direction of the second positioning mechanism 2. Setting them in the same direction can reduce the floor area of the welding device.

[0130] Such as Figure 4 and Figure 8 As shown, in some embodiments, the first positioning member 11 further includes an adsorbing member 112 for adsorbing and fixing the first welded part 9.

[0131] Specifically, in some embodiments, when the first welding part 9 is a magnetic material such as iron, the adsorbing part 112 can be a magnetic part, and the first welding part 9 is adsorbed in the adsorbing part 112 by magnetic force. At this time, the adsorbing part 112 can be an electromagnet or a permanent magnet, and the embodiments of the present application do not limit this. In some other embodiments, the adsorbing part 112 can also be a negative pressure pumping device, and the first welding part 9 is adsorbed and fixed on the adsorbing part 112 by negative pressure.

[0132] By arranging the adsorbing part 112, the first welding part 9 can be adsorbed and fixed. On the one hand, it can prevent the positioned first welding part 9 from moving and affecting the positioning accuracy. On the other hand, after the first welding part 9 is adsorbed and fixed, it can be transferred to other positions for subsequent processes. The positioning process and other processes of the first welding part 9 are distributed at different positions and carried out separately, shortening the working time of the welding device and improving production efficiency.

[0133] As Figure 8 shown, in some embodiments, the adsorbing part 112 includes an adsorption part 1121 and a negative pressure part 1122 communicated with the adsorption part 1121, and the adsorption part 1121 is used to suck the first welding part 9.

[0134] The negative pressure part 1222 refers to a component that can provide negative pressure. Through the negative pressure part 1222, a negative pressure environment can be provided for the adsorption part 1221, so that the first welding part 9 can be adsorbed on the adsorption part 1221. In some embodiments, the negative pressure part 1222 can also be a vacuum pumping device, so that the negative pressure it provides reaches a vacuum state, increasing the adsorption force of the adsorption part 1221 and improving the sucking effect of the first welding part 9.

[0135] By arranging the adsorption part 1221 and the negative pressure part 1222 to suck and fix the first welding part 9, the applicable range is wider compared with the magnetic adsorption method, which can improve the practicability of the welding device.

[0136] As Figure 3 、 Figure 5 and Figures 14 to 17 shown, in some embodiments, the welding device further includes a frame 4 and a transfer mechanism 6. The transfer mechanism 6 includes a rotating assembly 61 rotatably arranged on the frame 4 and a gripping assembly 62 movably arranged on the rotating assembly 61 along a preset direction.

[0137] The rotating assembly 61 is rotatably arranged on the frame 4. The rotational connection between the rotating assembly 61 and the frame 4 can be achieved by means of a rotating shaft connection, or can also be achieved by means of a universal joint connection, a screw connection, etc. By arranging the rotating assembly 61, the first welding part 9 can be driven to rotate during the rotation of the rotating assembly 61 relative to the frame 4, thereby completing the adjustment of the posture of the first welding part 9. For example, when the rotation angle of the rotating assembly 61 is 90°, the first welding part 9 can be adjusted from a horizontal posture to a vertical posture (or from a vertical posture to a horizontal posture).

[0138] The holding component 62 is also the mechanism for holding the first welding part 9. In some embodiments, the holding component 62 can be a mechanical gripper, and the first welding part 9 is grabbed and placed by the opening and closing of the mechanical gripper. In still other embodiments, the holding component 62 can also be an adsorption device, and the first welding part 9 is adsorbed on the holding component 62 by the adsorption force generated by a negative pressure pumping member. In other some embodiments, when the first welding part 9 is made of a magnetic material, the holding component 62 can also be a magnetic adsorption device, and the first welding part 9 is magnetically adsorbed on the holding component 62 by magnetic force; at this time, the holding component 62 can be an electromagnet or a permanent magnet, and the embodiments of the present application do not limit this.

[0139] The movable connection between the holding component 62 and the rotating assembly 61 can be achieved by a guide rail slider mechanism, or can also be achieved by a ball screw mechanism or a screw mechanism, and the embodiments of the present application do not limit this.

[0140] Among them, the rotation of the rotating assembly 61 relative to the frame can be achieved by a motor, or can also be achieved by a gear mechanism or a rack and pinion mechanism. The movement of the holding component 62 can be achieved by mechanisms such as an electric cylinder, a cylinder, a hydraulic cylinder, etc., or can also be achieved by a motor driving a screw and nut mechanism.

[0141] The preset direction refers to the radial direction with the rotation center of the rotating assembly 61 and the frame 4 as the center of the circle. For example, when the transfer mechanism 6 is in Figure 14 and Figure 15 the state shown, the preset direction is the vertical direction, so that the holding component 62 can move downwards close to or away from the first welding part 9; and when the transfer mechanism 6 is in Figure 16 and Figure 17 the state shown, the preset direction is the horizontal direction, so that the holding component 62 can move horizontally close to or away from the first welding part 9.

[0142] On the one hand, by setting the rotating component 61, the attitude of the first welding part 9 held in the holding component 62 can be changed under the rotation of the rotating component 61; on the other hand, by movably arranging the holding component 62 along a preset direction on the rotating component 61, it is convenient to adjust the distance between the holding component 62 and the first welding part 9 during the process of holding and placing the first welding part 9, and the first welding part 9 can be transferred from one station to another under the rotation of the rotating component 61. Grabbing, rotating, and placing are all realized in the transfer mechanism 6, which can save the time for grabbing and placing the first welding part 9 on the robot and has high production efficiency.

[0143] As Figures 14 to 17 shown, in some embodiments, the rotating component 61 includes a mounting part 611 and a connecting part 612. Among them, the mounting part 611 is rotatably arranged on the frame 41; the holding component 62 is arranged on the connecting part 612; and a guide rail 6111 extending along a preset direction is arranged on the mounting part 611, and a slider 6121 is arranged on the connecting part 612, and the slider 6121 is movably arranged on the guide rail 6111; or a guide rail extending along a preset direction is arranged on the connecting part 612, and a slider is arranged on the mounting part 611, and the slider is movably arranged on the guide rail.

[0144] That is to say, one of the guide rail and the slider is arranged on the mounting part 611, and the other is arranged on the connecting part 612. The movable connection between the connecting part 612 and the mounting part 611 is realized through the guide rail-slider mechanism, and the structure is simple.

[0145] Similarly, the rotational connection between the mounting part 611 and the frame 11 can be achieved by means of a shaft connection, or by means of a universal joint connection, a screw connection, etc. The connection method between the holding component 62 and the connecting part 612 can be a detachable connection method such as a threaded connection or a snap connection, or a non-detachable connection method such as welding or bonding. The embodiments of the present application do not limit this.

[0146] By setting the guide rail and the slider, the movable setting of the holding component 62 relative to the rotating component 61 along a preset direction is realized, with a simple structure and reliable movement.

[0147] As Figure 5 and Figures 14 to 17 shown, in some embodiments, the transfer mechanism 6 further includes a push rod 63 and a third elastic member 64. Among them, the push rod 63 is rotatably arranged on the frame 4, the push rod 63 includes a first pushing portion 631, and one end of the first pushing portion 631 away from the frame 4 pushes the connecting part 612 to move along a preset direction during rotation; the third elastic member 64 is arranged on the side of the connecting part 612 facing away from the push rod 63, and one end of the third elastic member 64 abuts against the connecting part 612, and the other end abuts against the mounting part 611.

[0148] The cross section of the push rod 63 can be a regular shape such as a circle or a square, or can be an irregular shape composed of a combination of line segments and / or arcs, and the embodiment of the present application does not limit this.

[0149] The third elastic member 64 can be made of an elastic material such as rubber, or it can be a spring. The third elastic member 64 can be removably clamped between two opposing surfaces of the connecting member 612 and the mounting member 611. Specifically, a recessed portion can be provided on the opposing surfaces of the connecting member 612 and / or the mounting member 611, and the third elastic member 64 can be placed in the recessed portion. In this case, it should be noted that the length of the third elastic member 64 should be greater than the depth of the recessed portion to ensure that the elastic member can be compressed. Of course, the third elastic member 64 can also be directly fixedly mounted on the opposing surfaces of the connecting member 612 and / or the mounting member 611.

[0150] By setting the first pushing portion 1421, as Figure 14 and Figure 15 As shown, the push rod 63 rotates counterclockwise relative to the frame 4. At this time, the first push portion 631 moves downward, pushing the connecting member 612 downward, thereby allowing the holding assembly 62 to approach the first welding member 9, facilitating the holding of the first welding member 9. By providing the third elastic member 64, on the one hand, when the push rod 63 pushes the connecting member 612 to move, it can act as a buffer to prevent the connecting member 612 and the mounting member 611 from colliding and being damaged. On the other hand, by providing the third elastic member 64 on the side of the connecting member 612 facing away from the push rod 63, when the push rod 63 removes the pushing force, the connecting member 142 can return to its original position under the action of the elastic force, thereby reducing the number of driving members.

[0151] It should be noted that, at this time, the movement of the holding component 62 when the transfer mechanism 6 is in another posture can be achieved by mechanisms such as electric cylinders, air cylinders or hydraulic cylinders.

[0152] like Figure 3 、 Figure 5 as well as Figures 14 to 17 As shown, in some embodiments, the pushing rod 63 further includes a second pushing portion 632, which intersects the first pushing portion 631 perpendicularly and coincides with the rotation center of the pushing rod 63 and the frame 4. The end of the second pushing portion 632 away from the frame 4 pushes the connecting member 612 to move along a preset direction during the rotation process.

[0153] That is, the vertical feet of the second pushing portion 632 and the first pushing portion 631 coincide with the rotation center of the pushing rod 63 and the frame 4 .

[0154] When the first welding member 9 is adjusted from a horizontal state to a vertical state, as shown in FIG. Figure 6As shown, after the rotating assembly 61 rotates to a predetermined position, the push rod 63 rotates clockwise relative to the frame 4. At this time, since the foot of the perpendicular of the second pushing part 632 and the first pushing part 631 coincides with the rotation center of the push rod 63 and the frame 4, the second pushing part 632 will move horizontally to the left at the moment of rotation, and then push the connecting piece 612 to move to the left, so that the holding component 62 approaches the blanking station. That is, after setting the foot of the perpendicular of the second pushing part 632 and the first pushing part 631 to coincide with the rotation center of the push rod 63 and the frame 4, all the acting forces (rather than component forces) of the second pushing part 632 are used to push the connecting piece 612 to move, making the driving force the largest and the driving effect the most obvious.

[0155] By setting the second pushing part 1422, as Figure 16 and 17 shown, after the rotating assembly 61 rotates to a predetermined position, the push rod 63 rotates clockwise relative to the frame 4. At this time, the second pushing part 632 pushes the connecting piece 612 to move in a preset direction, so that the holding component 62 approaches the blanking station, facilitating the transfer of the first welding part 9 to the next station.

[0156] As Figure 5 and Figures 14 to 17 shown, in some embodiments, a first roller is provided at one end of the first pushing part 631 facing away from the frame 4; and / or a second roller is provided at one end of the second pushing part 632 facing away from the frame 4.

[0157] The first roller and the second roller are wheels that can rotate around their own axes.

[0158] By setting the first roller and / or the second roller, when the push rod 63 pushes the connecting piece 612, the sliding friction between the two can be changed into rolling friction, thereby reducing the wear between the push rod 63 and the connecting piece 612 and improving the service life of the transfer mechanism 6.

[0159] As Figures 1 to 5 shown, in some embodiments, the welding device further includes a first conveyor line 7 and / or a second conveyor line 8. Among them, a plurality of pallets 71 are provided on the first conveyor line 7, and the first conveyor line 7 is used to convey a plurality of pallets 71; a plurality of first positioning members 11 are provided on the second conveyor line 8, and the second conveyor line 8 is used to convey a plurality of first positioning members 11; the transfer mechanism 6 is arranged between the first conveyor line 7 and the second conveyor line 8 and is used to transfer the first welding part 9 from the first conveyor line 7 to the second conveyor line 8.

[0160] That is, in some embodiments, the conveying system includes the first conveyor line 7 or the second conveyor line 8; and in other embodiments, the conveying system includes the first conveyor line 7 and the second conveyor line 8.

[0161] The first conveyor line 7 can be a magnetic levitation conveyor line or a chain conveyor line, which is not limited in this embodiment of the present application. The tray 71 is a component for placing the first welding part 9. Multiple trays 71 are arranged on the first conveyor line 7 and are transported in sequence to the positions corresponding to the transfer mechanism 6 under the conveyance of the first conveyor line 7.

[0162] In some embodiments, the second conveying line is a turntable, which rotates to convey the first welding part 9 adsorbed on the adsorption part 112 to the welding position for welding.

[0163] By setting up the first conveyor line 7 and / or the second conveyor line 8, on the one hand, the time required for the loading and unloading process of the first welding part 9 can be transferred to other processes, so that the loading, transfer, unloading and welding of the first welding part 9 can be carried out at the same time, avoiding the loading, transfer, unloading and welding of the first welding part 9 being carried out in the transfer process, which requires multiple processes to be carried out separately, increasing production time and affecting production efficiency.

[0164] like Figure 5 As shown, in some embodiments, a detection component 81 is further provided on the second conveyor line 8 for detecting the first welding component 9 on the first positioning component 11 .

[0165] The detection member 81 may be a laser detection device or an image detection device, and is used to detect whether the first welding member 9 is placed on the first positioning member 11 .

[0166] like Figure 5 As shown, in some embodiments, a detection block 82 is further provided on the second conveyor line 8 , and the detection block 82 is provided corresponding to the first positioning member 11 to detect the position of the first positioning member 11 .

[0167] During the operation of the second conveyor line 8 , when the detection member 81 detects the detection block 82 , it indicates that the first positioning member 11 has been conveyed to the correct position, which facilitates determination of the relative position of the first positioning member 11 .

[0168] Specifically, for the sake of convenience, the following description will be made by taking the first welding member 9 and the second welding member 10 as an example, namely, a cap and a tab. Figures 1 to 17 As shown, when loading, the caps 9 are placed on the tray 71 , and each tray 71 is transported by the first conveyor line 7 to the transfer station.

[0169] At the transfer station, the push rod 63 of the transfer mechanism 6 rotates counterclockwise, causing the first pushing portion 1421 to push the gripping assembly 62 closer to the tray 71. The gripping assembly 62 grips the cap 9 located on the tray 71. Subsequently, the push rod 63 rotates clockwise, causing the gripping assembly 62 to move away from the first conveyor line 7 under the drive of the third elastic member 64. Then, the rotating assembly 62 rotates to rotate the cap 9 from a horizontal state to a vertical state. Finally, the push rod 63 rotates clockwise, causing the second pushing portion 632 to push the gripping assembly 62 closer to the second conveyor line 8 and press the cap 9 against the suction portion 112 of the first positioning member 11. The suction portion 112 sucks and fixes the cap 9, while the gripping assembly 62 releases the cap 9, completing the adjustment of the cap 9 from a horizontal state to a vertical state and the transfer of the cap 9 from the first conveyor line 7 to the second conveyor line 8.

[0170] On the second conveyor line 8, after the cap 9 is transferred to the positioning station, the cap 9 enters the recess 1211 along the side surface 12112 and abuts against the positioning protrusion 111 under the elastic force of the first elastic member 122, completing the positioning of the cap 9 in the first positioning mechanism 1. Subsequently, the second conveyor line 8 rotates to convey the cap 9 to the welding position.

[0171] At the welding position, the battery is fixed in the fixture 5. Before the cap 9 reaches the welding position, the guiding portion 553 drives the convex portion 552 to release the battery. On the one hand, this can avoid interference between the ear 10 at one end of the battery and the cap 9. On the other hand, it is convenient to adjust the relative position of the ear 10 and the cap 9 in the first direction X. After the cap 9 reaches the welding position, the pushing portion 21 of the second positioning mechanism 2 drives the battery and the ear 10 at one end of the battery to move along the first direction X under the drive of the driving portion 22 to adjust the relative position of the ear 10 and the cap 9 and ensure the concentricity of the ear 10 and the cap 9. After the relative position of the ear 10 and the cap 9 is adjusted, the pressing member 31 on the welding mechanism 3 moves along the second direction Y to press the ear 10 and the cap 9. Finally, the laser emitting member 31 and the dust removing member 32 are activated to complete the welding of the ear 10 and the cap 9. 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 as within the scope described in this specification.

[0172] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A welding device for welding a first welding part and a second welding part, characterized in that, The welding device comprises: The first positioning mechanism includes a first positioning member and a second positioning member, wherein the first positioning member is provided with a positioning protrusion, and the second positioning member is movably provided corresponding to the positioning protrusion to push the first welding member to abut against the side of the positioning protrusion close to the second positioning member; a second positioning mechanism, movably disposed on one side of the second welding member along a first direction, pushing the second welding member to move along the first direction to adjust a relative position of the second welding member relative to the first welding member in the first direction; and The welding mechanism is arranged on a side of the second welding member facing away from the first welding member.

2. The welding device according to claim 1, characterized in that, An abutment portion is provided on one end of the second positioning member close to the positioning protrusion, and a surface of the abutment portion close to the positioning protrusion is recessed inwardly to form a recessed portion.

3. The welding device according to claim 2, characterized in that, The bottom surface of the recessed portion is a flat surface, and the side surface is a curved surface; And / or the shape of the side surface of the positioning protrusion close to the second positioning member is consistent with the shape of the surface of the first welding member that abuts against the positioning protrusion.

4. The welding device according to claim 2, characterized in that, The welding device also includes a frame, the second positioning member is movably arranged on the frame, and a first elastic member is provided between the frame and the second positioning member to push the first welding member to abut against the side of the positioning protrusion close to the second positioning member.

5. The welding device according to claim 4, characterized in that The frame is provided with a guide hole, the second positioning member includes a guide rod, the abutment portion is provided on a side of the guide rod close to the positioning protrusion, the guide rod is passed through the guide hole, and the first elastic member is sleeved on the guide rod.

6. The welding device according to claim 5, characterized in that, The second positioning member further includes a sleeve, which is arranged between the guide rod and the guide hole, and a limiting distance is provided between the sleeve and the abutting portion.

7. The welding device according to claim 1, characterized in that, The second positioning mechanism includes a pushing portion and a driving portion drivingly connected to the pushing portion. The pushing portion is movably disposed along a first direction X on one side of the second welding member.

8. The welding device according to claim 1, characterized in that, The welding device further includes a clamp, the clamp including a first clamping portion and a second clamping portion spaced apart along a second direction, a receiving portion for receiving the second welding piece being formed between the first clamping portion and the second clamping portion, the second direction being perpendicular to the first direction; Furthermore, the distance between the first clamping portion and the second clamping portion along the second direction is variable to adjust the size of the accommodating portion.

9. The welding device according to claim 8, characterized in that, The fixture further comprises: The connecting assembly includes a first connecting member and a second connecting member movable along the second direction, wherein the first connecting member is connected to the first clamping portion, and the second connecting member is connected to the second clamping portion.

10. The welding device according to claim 9, wherein The fixture further comprises a fixture driving member, wherein the fixture driving member comprises: a second elastic member, disposed between the first connecting member and the second connecting member; a convex portion provided on the first clamping portion; and The guide portion contacts the convex portion to drive the convex portion to move along the second direction.

11. The welding device according to claim 1, characterized in that, The welding mechanism includes a pressing member that is movable along a second direction and is arranged on a side of the second welding member away from the first welding member to press the first welding member and the second welding member. The second direction is perpendicular to the first direction.

12. The welding device according to claim 11, wherein The welding mechanism further includes a dust removal component connected to the pressing component.

13. The welding device according to any one of claims 1 to 12, characterized in that, The second positioning member is movably arranged along the first direction corresponding to the positioning protrusion to push the first welding member to abut against the side of the positioning protrusion close to the second positioning member along the first direction.

14. The welding device according to claim 13, characterized in that, The first positioning member further includes an adsorption member for adsorbing and fixing the first welding member.

15. The welding device according to claim 14, characterized in that, The adsorption member includes an adsorption portion and a negative pressure portion connected to the adsorption portion, and the adsorption portion is used to absorb the first welding member.

16. The welding device according to claim 14, characterized in that, The welding device further comprises a frame and a transfer mechanism, wherein the transfer mechanism comprises a rotating assembly rotatably arranged on the frame and a holding assembly movably arranged on the rotating assembly along a preset direction.

17. The welding device according to claim 16, wherein The rotating assembly comprises: A mounting member rotatably disposed on the frame; A connecting piece, wherein the holding assembly is provided on the connecting piece; The mounting member is provided with a guide rail extending along the preset direction, the connecting member is provided with a slider, and the slider is movably provided on the guide rail; or the connecting member is provided with a guide rail extending along the preset direction, the mounting member is provided with a slider, and the slider is movably provided on the guide rail.

18. The welding device according to claim 17, wherein The transfer mechanism also includes: a push rod rotatably disposed on the frame, the push rod comprising a first push portion, wherein an end of the first push portion away from the frame pushes the connecting member to move along a preset direction during rotation; and The third elastic member is arranged on a side of the connecting member away from the pushing rod, and one end of the third elastic member abuts against the connecting member, and the other end abuts against the mounting member.

19. The welding device according to claim 18, characterized in that, The pushing rod also includes a second pushing portion, which intersects with the first pushing portion perpendicularly and coincides with the rotation center of the pushing rod and the frame. The end of the second pushing portion away from the frame pushes the connecting member to move along a preset direction during rotation.

20. The welding device according to any one of claims 16 to 19, characterized in that, The welding device further comprises: A first conveyor line, wherein a plurality of pallets are arranged on the first conveyor line, and the first conveyor line conveys the plurality of pallets; and / or a second conveying line, wherein a plurality of the first positioning members are arranged on the second conveying line, and the second conveying line is used to convey the plurality of the first positioning members; The transfer mechanism is disposed between the first conveying line and the second conveying line, and is used to transfer the first welding piece from the first conveying line to the second conveying line.

21. The welding device according to claim 20, wherein The second conveying line is further provided with a detection component for detecting the first welding component on the first positioning component.

22. The welding device according to claim 21, characterized in that, The second conveying line is further provided with a detection block, which is arranged corresponding to the first positioning member to detect the position of the first positioning member.

Images