Nailing device and battery piece making machine

Abstract

The utility model is applicable to the technical field of battery production, and provides a nailing device and a battery piece making machine, the nailing device comprises a mounting rack, a sequencing mechanism, a nailing mold group and a conveying mechanism, and the battery piece making machine comprises a rack, a pair of rubberizing mechanisms and any one of the nailing devices. The sorting mechanism and the nailing mold group are arranged on the mounting frame, and the conveying mechanism is arranged between the sorting mechanism and the nailing mold group, so that when the guide pins are mounted, the guide pins are sorted through the sorting mechanism and are separated; and then the sorted guide pins are sequentially conveyed to the nailing die set through the conveying mechanism, and finally the guide pins are fixedly installed on the pole piece in a riveting mode through the nailing die set. Compared with a laser welding mode in the prior art, the guide pin is fixedly arranged on the pole piece in a riveting mode, so that the connection between the guide pin and the pole piece is firmer, and the risk that the guide pin falls off is reduced to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production, and particularly relates to a nailing device and a battery film making machine. Background Art

[0002] Lithium battery is a battery with high energy density and good environmental performance. It has the advantages of high energy, high reliability and good processability. Therefore, it is widely used in various portable electronic devices, electric vehicles, energy storage power stations and other electrical equipment. At present, capacitive lithium batteries are mainly composed of battery cells and outer packaging. The battery cells are wound with positive and negative electrodes and diaphragms. Before the electrode is wound, the guide pin type pole ear needs to be installed on the electrode. At present, the guide pin is mostly fixed by ultrasonic welding, which leads to the problem of loose connection between the guide pin and the electrode, which seriously affects the quality of the battery cell. Utility Model Content

[0003] The utility model aims to provide a nailing device and a battery film making machine, aiming to solve the technical problem of loose connection between guide pins and pole pieces in the production process of battery cells in the prior art.

[0004] The utility model is implemented in this way: a stapling device comprises:

[0005] Mounting frame;

[0006] A sorting mechanism, disposed on the mounting frame, for sorting the guide needles and separating the guide needles;

[0007] A nail pressing die set, arranged on the mounting frame, for riveting the guide pin to the pole piece;

[0008] The transport mechanism is arranged on the mounting frame and is used to transport the guide pins at the sorting mechanism to the nail pressing mold set in sequence.

[0009] In an optional embodiment, the nail pressing mold group includes a main body, a nail hole needle assembly, a pre-pressing assembly and a rivet assembly. The main body is arranged on the mounting frame, and the main body has a working surface for supporting the pole piece; the pre-pressing assembly is movably connected to the main body, located above the working surface, and is used to press the guide needle so that the guide needle abuts against the side of the pole piece; the nail hole needle assembly is movably connected to the main body, and is used to pierce the guide needle and the pole piece; the rivet assembly is movably connected to the main body, and is used to cooperate with the working surface to squeeze the pierced guide needle and the pole piece so that the guide needle is riveted to the pole piece.

[0010] In an optional embodiment, the nail hole needle assembly includes a nail hole slider, a nail needle mounting seat and a puncture needle, the nail hole slider is slidably set on the main body along a first direction, the nail needle mounting seat is connected to the nail hole slider, a plurality of puncture needles are installed on the nail needle mounting seat at intervals, the puncture needle is used to puncture the pole piece and the guide needle, and the first direction is set at an angle to the working surface.

[0011] In an optional embodiment, the pre-pressing assembly includes a pressing slider and a pressing piece, the pressing slider is slidably disposed on the main body along the first direction, the pressing piece is connected to the pressing slider and can move with the pressing slider, the pressing piece is located above the working surface, and the pressing piece is used to contact the guide needle.

[0012] In an optional embodiment, a avoidance structure is provided on the working surface, and the avoidance structure is used to avoid the portion of the puncture needle and the guide needle extending to the back side of the pole piece. The main body is also movably provided with an ejector, and the ejector is located below the working surface. The ejector is used to eject the portion of the guide needle extending to the back side of the pole piece out of the avoidance structure.

[0013] In an optional embodiment, a positioning clamp is provided on the main body, and the positioning clamp is used to clamp the guide needle when the clamping member approaches the guide needle and release the guide needle when the clamping member moves away from the guide needle. The driving end of the positioning clamp is connected to the clamping slider and / or the clamping member so that the positioning clamp moves synchronously with the clamping member.

[0014] In an optional embodiment, the sorting mechanism includes a vibrating plate, an inclined guide rail and a guide needle separation structure, the inclined guide rail is inclinedly arranged on the mounting frame, the feed port of the inclined guide rail is connected to the discharge port of the vibrating plate, and the guide needle separation structure is arranged at the discharge port of the inclined guide rail for separating the guide needles at the discharge port.

[0015] In an optional embodiment, the transport mechanism includes a support rail, a pushing assembly, a flipping and swinging group and a transport clamp, wherein the support rail is arranged on the mounting frame, the support rail is used to support the guide needle, the pushing assembly is arranged on the mounting frame, the pushing assembly is used to push the guide needle to slide along the support rail, the flipping and swinging group is arranged between the support rail and the inclined rail, the flipping and swinging group is used to transport the separated guide needles to the support rail and adjust the direction of the guide needles, and the transport clamp is movably arranged on the mounting frame, and the transport clamp is used to clamp the guide needles on the support rail to the nail pressing mold group.

[0016] In an optional embodiment, the stapling device also includes a driving mechanism, which includes a rotating spindle and a power unit. The rotating spindle is rotatably arranged on the mounting frame, and the power unit is used to drive the rotating spindle to rotate. A plurality of cam structures are arranged on the rotating spindle at intervals, and the cam structures are respectively connected to the sorting mechanism, the nail pressing mold group and the movable parts in the transport mechanism through a swing arm connecting rod group.

[0017] In a second aspect, a battery making machine is provided, comprising any of the stapling devices described above.

[0018] The technical effect of the utility model relative to the prior art is: by arranging a sorting mechanism and a nail pressing mold group on the mounting frame, and arranging a transport mechanism between the sorting mechanism and the nail pressing mold group, when installing the guide pins, the sorting mechanism is used to sort the guide pins and separate them, and then the sorted guide pins are transported to the nail pressing mold group in sequence by the transport mechanism, and finally the guide pins are installed and fixed on the pole piece by riveting by the nail pressing mold group. Compared with the laser welding method used in the prior art, the guide pins are installed and fixed on the pole piece by riveting, which can make the connection between the guide pins and the pole piece more firm, reduce the risk of the guide pins falling off to a certain extent, and improve the quality of the battery cell.

[0019] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The structure of the nailing device provided by the embodiment of the utility model is schematically shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the nailing device provided by the embodiment of the utility model is schematically shown in FIG. Figure 2 ;

[0023] Figure 3 It is a structural schematic diagram of a nail pressing die set used in an embodiment of the utility model;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of a nail pressing die set used in an embodiment of the utility model;

[0025] Figure 5 This Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 6 It is a schematic diagram of the structure of the positioning clamping claw used in the embodiment of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the transport mechanism adopted in the embodiment of the utility model;

[0028] Figure 8 It is a schematic diagram of the structure of the flip and swing group used in the embodiment of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of the guide needle separation structure adopted in the embodiment of the utility model;

[0030] Fig.10 It is a structural schematic diagram of a battery slice making machine provided in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 100, stapling device; 200, material unwinding mechanism; 300, material receiving mechanism; 400, guide wheel group; 500, guide needle CCD group; 600, frame; 700, brush dust removal group; 800, gluing mechanism;

[0033] 11. Mounting frame; 12. Sorting mechanism; 121. Vibrating plate; 122. Inclined guide rail; 123. Guide needle separation structure; 1231. Sliding frame; 1232. Separating needle; 1233. Limit baffle plate; 1234. Limit baffle rod; 13. Nail pressing mold set; 131. Main body; 132. Nail hole needle assembly; 1321. Nail hole slider; 1322. Nail needle mounting seat; 1323. Needle; 133. Pre-pressing assembly; 1331. Pressing slider; 1332. Pressing member; 134. Riveting assembly; 1341. Riveting slider; 1342. Riveting block; 135. Working surface; 136. Avoidance structure; 137. Ejector; 138. Positioning jaw; 1381. Jaw fixing part; 1382. Jaw slider Moving block; 1383, positioning clamping arm; 1384, partition support block; 1385, clamping claw elastic member; 1386, clamping claw connecting rod; 14, transportation mechanism; 141, support guide rail; 142, pushing assembly; 143, flip swing group; 1431, flip bracket; 1432, swing rod; 1433, guide block; 1434, rotating suction part; 1435, transmission structure; 1436, flip base; 144, transportation clamping claw; 145, upper and lower positioning assembly; 146, left and right positioning unit; 15, driving mechanism; 151, rotating spindle; 152, power unit; 153, cam structure; 16, swing arm connecting rod group; 17, detection module; 171, embossed stopper; 172, detection connecting arm; 18, guide needle. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In this embodiment, according to Fig.10The XYZ rectangular coordinate system established in the definition is: the side located in the positive direction of the X axis is defined as the front, and the side located in the negative direction of the X axis is defined as the back; the side located in the positive direction of the Y axis is defined as the left, and the side located in the negative direction of the Y axis is defined as the right; the side located in the positive direction of the Z axis is defined as the top, and the side located in the negative direction of the Z axis is defined as the bottom.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] Please refer to Figure 1 and Figure 2 As shown, in an embodiment of the utility model, a stapling device 100 is provided. The stapling device 100 comprises a mounting frame 11, a sorting mechanism 12, a stapling die set 13 and a transport mechanism 14. The sorting mechanism 12 is arranged on the mounting frame 11, and is used to sort the guide pins and separate the guide pins. The stapling die set 13 is arranged on the mounting frame 11, and is used to rivet the guide pins to the pole pieces. The transport mechanism 14 is arranged on the mounting frame 11, and is used to transport the guide pins at the sorting mechanism 12 to the stapling die set 13 in sequence.

[0041] Specifically, the mounting frame 11 refers to a supporting component with a certain area, and the mounting frame 11 has a bearing surface for mounting components. The sorting mechanism 12 refers to a component that can sort the guide pins, and the nail pressing mold group 13 refers to a component that rivets and fixes the guide pins on the pole pieces at a certain interval when the pole pieces pass through the nail pressing mold group 13. The transportation mechanism 14 refers to a component that can drive the guide pins to move and transport the guide pins. The transportation mechanism 14 can transport the guide pins from the discharge port of the sorting mechanism 12 to the nail pressing mold group 13 in sequence.

[0042] The nailing device 100 provided in the embodiment of the utility model is provided with a sorting mechanism 12 and a nail pressing mold group 13 on the mounting frame 11, and a transportation mechanism 14 is provided between the sorting mechanism 12 and the nail pressing mold group 13. When installing the guide pins, the guide pins are first sorted and separated by the sorting mechanism 12, and then the sorted guide pins are transported to the nail pressing mold group 13 in sequence by the transportation mechanism 14, and finally the guide pins are installed and fixed on the pole piece by riveting by the nail pressing mold group 13. Compared with the laser welding method used in the prior art, the guide pin is installed and fixed on the pole piece by riveting, which can make the connection between the guide pin and the pole piece more firm, reduce the risk of the guide pin falling off to a certain extent, and improve the quality of the battery cell.

[0043] In one embodiment, see Figure 3 and Figure 4 The nail pressing mold set 13 includes a main body 131, a nail hole needle assembly 132, a pre-pressing assembly 133 and a rivet assembly 134. The main body 131 is arranged on the mounting frame 11, and the main body 131 has a working surface 135 for supporting the pole piece. The pre-pressing assembly 133 is movably connected to the main body 131, located above the working surface 135, and is used to press the guide needle so that the guide needle abuts against the side of the pole piece. The nail hole needle assembly 132 is movably connected to the main body 131, and is used to pierce the guide needle and the pole piece; the rivet assembly 134 is movably connected to the main body 131, and is used to cooperate with the working surface 135 to squeeze the pierced guide needle and the pole piece, so that the guide needle is riveted and fixed to the pole piece.

[0044] Specifically, the main body 131 refers to a supporting component with a certain height. The main body 131 can be a block, a plate, or a combination of multiple shapes. The working surface 135 refers to a surface structure with a certain area arranged on the main body 131. The working surface 135 can be a plane structure or a curved structure. The working surface 135 can also be a combination of surfaces of multiple shapes. The function of the working surface 135 is to support the pole piece. When installing the guide needle, the pole piece is generally a continuous strip structure. Under the action of other components, the pole piece passes through the area where the working surface 135 is located at a certain speed in sequence to facilitate the installation of the guide needle on the pole piece.

[0045] The pre-pressing component 133 refers to a component that can press the electrode piece onto the working surface 135. The working end of the pre-pressing component 133 is located above the working surface 135. The working end of the pre-pressing component 133 can press the electrode piece and the guide needle when it is close to the working surface 135, and allow the electrode piece and the guide needle to move freely when it is away from the working surface 135. The nail hole needle component 132 refers to a structure that can pierce the guide needle and the electrode piece; the guide needle itself can be divided into a main needle body and a connecting part, wherein the connecting part is usually a sheet or plate structure with a certain area. By placing the connecting part of the guide needle on the first surface of the electrode piece, and piercing the connecting part of the guide needle and the electrode piece at the same time through the nail hole needle component 132, the pierced part of the guide needle will extend through the piercing hole on the electrode piece to the other side of the electrode piece, and form a bending part extending away from the piercing hole on the other side of the electrode piece, and the bending part is arranged around the above-mentioned piercing hole. The rivet assembly 134 refers to a assembly that can squeeze an object. The pierced guide needle can be squeezed in cooperation with the working surface 135, so that the bent portion on the guide needle moves toward the second surface of the pole piece (the surface opposite to the first surface), and finally the bent portion can fit with the second surface of the pole piece, so that the connecting portion of the guide needle can abut against the part of the first surface of the pole piece to clamp the pole piece, thereby achieving the purpose of riveting the guide needle and the pole piece to each other.

[0046] In addition, the nail hole needle assembly 132 can work when the pre-pressing assembly 133 presses the guide needle and the electrode, and the pre-pressing assembly 133 can be moved away to avoid the nail hole needle assembly 132 when the nail hole needle assembly 132 performs the puncture work. The pressure riveting assembly 134 and the nail hole needle assembly 132 are respectively arranged at different positions of the main body 131. The pressure riveting assembly 134 and the nail hole needle assembly 132 can move independently or synchronously, which can be freely selected according to production needs.

[0047] By arranging the nail hole needle assembly 132, the pre-pressing assembly 133 and the rivet assembly 134 on the main body 131, when performing the riveting and fixing work of the guide needle, first, the guide needle is placed on the pole piece, and then the guide needle can be pressed by the pre-pressing assembly 133 to prevent the guide needle from moving, and then the guide needle and the pole piece are pierced at the same time by the nail hole needle assembly 132, so that the guide needle forms a bent portion arranged around the pierced hole at the pierced position, and finally the pole piece drives the guide needle to move to the rivet assembly 134, and the rivet assembly 134 squeezes the pierced guide needle by cooperating with the working surface 135, so that the bent portion on the guide needle moves toward the second surface of the pole piece (the surface arranged opposite to the first surface), and finally the bent portion can be in contact with the second surface of the pole piece, so that it can cooperate with the part of the guide needle's connecting portion abutting against the first surface of the pole piece to clamp the pole piece, thereby realizing the mutual riveting of the guide needle and the pole piece. The whole riveting and fixing process of the guide pin can be made more convenient and quick by the cooperation of the nail hole needle assembly 132, the pre-tightening assembly 133 and the rivet assembly 134.

[0048] It should be noted that the movements of the pre-pressing assembly 133, the nail hole needle assembly 132 and the rivet assembly 134 are all driven by a power assembly, wherein the pre-pressing assembly 133, the nail hole needle assembly 132 and the rivet assembly 134 can be driven by independent power components, such as a cylinder, a hydraulic cylinder, an electric push rod, etc.; or an integral power assembly can be used to simultaneously drive the pre-pressing assembly 133, the nail hole needle assembly 132 and the rivet assembly 134 to move respectively, for example, a plurality of cam structures 153 are arranged on the rotating main shaft 151, and the plurality of cam structures 153 are respectively connected to the movable end of the pre-pressing assembly 133, the movable end of the nail hole needle assembly 132 and the movable end of the rivet assembly 134 through a swing connecting rod group, so as to drive the pre-pressing assembly 133, the nail hole needle assembly 132 and the rivet assembly 134 to move respectively.

[0049] In one embodiment, see Figure 3 and Figure 5 The nail hole needle assembly 132 includes a nail hole slider 1321, a nail needle mounting seat 1322 and a puncture needle 1323. The nail hole slider 1321 is slidably arranged on the main body 131 along a first direction. The nail needle mounting seat 1322 is connected to the nail hole slider 1321. A plurality of puncture needles 1323 are installed at intervals on the nail needle mounting seat 1322. The puncture needle 1323 is used to pierce the pole piece and the guide needle, and is arranged at an angle with the working surface 135 in the first direction. Specifically, the nail hole slider 1321 refers to a component with a certain volume, and the nail hole slider 1321 can be a block, a plate or a combination of multiple shapes; when the nail hole slider 1321 is installed, a slide groove for accommodating the nail hole slider 1321 can be provided on the main body 131, and the nail hole slider 1321 is slidably arranged in the slide groove, thereby realizing the sliding installation of the nail hole slider 1321. The nail needle mounting seat 1322 also refers to a component with a certain volume, and the nail needle mounting seat 1322 can be a block, a plate, or a combination of multiple shapes. The thorn needle 1323 refers to a rod-shaped component with a certain length, and a piercing tip is also provided at the end of the thorn needle 1323. The working surface 135 can be arranged along a horizontal square, and the angle between the first direction and the working surface 135 can be a right angle, that is, the first direction is perpendicular to the working surface 135.

[0050] By setting the piercing needle 1323 on the nail needle mounting seat 1322, and the nail needle mounting seat 1322 is fixed on the nail hole slider 1321, the piercing needle 1323 can be driven to slide together when the nail hole slider 1321 slides, so that the piercing needle 1323 can be moved away from or close to the working surface. When piercing is required, the nail hole slider 1321 can be used to drive the piercing needle 1323 close to the working surface, and the piercing tip of the piercing needle 1323 can pierce the guide needle and the pole piece, and the pierced part of the guide needle is formed into a bent portion under the pressure of the main needle body of the piercing needle 1323; after the piercing is completed, the nail hole slider 1321 can be used to drive the piercing needle 1323 away from the guide needle and the pole piece, so that the piercing of the guide needle and the pole piece can be more convenient and quick, thereby improving the efficiency of the guide needle riveting.

[0051] There may be multiple needles 1323 , and the guide needle and the pole piece may be pierced by multiple needles 1323 , so that there are more riveting points between the guide needle and the pole piece, making the guide needle more firmly installed.

[0052] In one embodiment, see Figure 3 and Figure 5 The pre-pressing assembly 133 includes a pressing slider 1331 and a pressing member 1332. The pressing slider 1331 is slidably disposed on the main body 131 along a first direction. The pressing member 1332 is connected to the pressing slider 1331 and can move with the pressing slider 1331. The pressing member 1332 is located above the working surface 135. Specifically, the pressing slider 1331 refers to a component with a certain volume. The pressing slider 1331 can be a block, a plate, or a combination of multiple shapes. When the pressing slider 1331 is installed, a slide groove for accommodating the pressing slider 1331 can be provided on the main body 131. The pressing slider 1331 is slidably disposed in the slide groove, thereby realizing the sliding installation of the pressing slider 1331. The pressing member 1332 refers to a component with a certain volume. The pressing member 1332 can be a block, a plate, or a combination of multiple shapes.

[0053] The pressing piece 1332 is the working end of the entire pre-pressing assembly 133. The pressing piece 1332 is connected to the pressing slider 1331 and is located above the working surface 135. When the guide needle is riveted, the connecting portion of the guide needle can be placed between the pressing piece 1332 and the working surface 135, and then the pressing slider 1331 is moved to drive the pressing piece 1332 toward the working surface 135 to pre-press the guide needle. After the puncture is completed, the pressing slider 1331 drives the pressing piece 1332 away from the working surface 135. Through the cooperation of the pressing slider 1331 and the pressing piece 1332, the guide needle can be pressed and pre-fixed before the puncture, and the movement of the guide needle during the puncture can be avoided to a certain extent.

[0054] In an alternative embodiment, see Figure 5 The pressing member 1332 is provided with a clearance hole structure for the needle 1323 to pass through, and the clearance hole structure includes a plurality of clearance holes whose positions match the positions of the needle 1323. The setting of the clearance hole structure allows the needle 1323 on the needle mounting seat 1322 to pass through the clearance holes in the clearance hole structure to contact the guide needle and the electrode and pierce the guide needle and the electrode when the pressing member 1332 presses the guide needle and the electrode, making the piercing operation of the guide needle and the electrode more convenient.

[0055] In one embodiment, see Figure 5 , a avoidance structure 136 is provided on the working surface 135, and the avoidance structure 136 is used to avoid the part of the needle 1323 and the guide needle extending to the back side of the pole piece. The main body 131 is also movably provided with an ejector 137, and the ejector 137 is located below the working surface 135. The ejector 137 is used to eject the part of the guide needle extending to the back side of the pole piece out of the avoidance structure 136. Specifically, the avoidance structure 136 refers to a structure that can avoid objects, and the avoidance structure 136 can be an avoidance hole, an avoidance groove, or an avoidance gap. The ejector 137 refers to a component with a certain volume, and the ejector 137 can be a block, a plate, or a combination of multiple shapes. The ejector 137 is fixed on the pressing slider 1331. By providing the avoidance structure 136 on the working surface 135, the needle 1323 can be avoided, so as to avoid the main body 131 from blocking the needle 1323 from piercing the guide needle and the pole piece. At the same time, through the setting of the ejector 137, after completing the piercing of the guide needle and the pole piece, the ejector 137 can eject the bent portion on the guide needle extending into the avoidance structure 136, avoiding affecting the movement of the guide needle and the pole piece along the working surface 135, making the entire riveting process smoother and more convenient.

[0056] The ejector 137 can be installed on the pressing slider 1331. When the ejector 137 is connected to the main body 131 through the pressing slider 1331, the ejector 137 can move synchronously with the pressing member 1332. The ejector 137 is located below the working surface 135. When the pressing member 1332 approaches the working surface 135, the ejector 137 will move away from the working surface 135. When the pressing member 1332 moves away from the working surface 135, the ejector 137 will move toward the working surface 135. The arrangement of the ejector 137 can complete the piercing work of the puncture needle 1323, and when the pressing member 1332 moves in a direction away from the working surface 135, the ejector 137 can eject the bent portion of the guide needle extending into the avoidance structure 136 to avoid affecting the movement of the guide needle and the pole piece along the working surface 135.

[0057] In an alternative embodiment, see Figure 5The avoidance structure 136 includes a plurality of avoidance holes arranged on the working surface 135, and the number and positions of the avoidance holes match the needles 1323. By providing the avoidance holes on the working surface 135, the needles 1323 can be avoided without affecting the strength of the main body 131, so that the structure of the main body 131 is simpler and more reasonable.

[0058] On the basis that the avoidance structure 136 is a plurality of avoidance holes, Figure 5 As shown, the ejector 137 may include a main block body and an ejector part, wherein the main block body is connected to the pressing slider 1331 and can move with the pressing slider 1331, and the ejector part is arranged on the top surface of the main block body. The ejector part may include a plurality of cylinders arranged at intervals, and the positions and cross-sectional dimensions of the plurality of cylinders are mutually adapted to the positions and dimensions of the avoidance holes, so that the cylinders can be inserted into the avoidance holes, thereby making the ejection of the guide pin more convenient.

[0059] In one embodiment, see Figure 3 and Figure 4 , the riveting assembly 134 includes a riveting slider 1341 and a riveting block 1342, wherein the riveting slider 1341 is slidably connected to the main body 131, the riveting block 1342 is connected to the riveting slider 1341 and can slide with the riveting slider 1341, and the riveting block 1342 is located above the working surface 135. Specifically, the riveting slider 1341 refers to a component with a certain volume, and the riveting slider 1341 can be a block, a plate, or a combination of multiple shapes. The riveting slider 1341 is slidably connected to the main body 131, and a slide groove is provided on the main body 131, and the riveting slider 1341 is slidably set in the slide groove to achieve a sliding connection between the riveting slider 1341 and the main body 131. The riveting block 1342 refers to a component with a certain volume, and the riveting block 1342 can be a block, a plate, or a combination of multiple shapes. When performing the riveting work, the riveting block 1342 can be driven to move by the sliding of the riveting slider 1341, and the pierced guide needle can be squeezed by the riveting block 1342 in cooperation with the work, making the riveting fixation of the guide needle more convenient.

[0060] In an alternative embodiment, see Figure 4 The bottom surface of the rivet block 1342 and the working surface 135 are provided with forming grooves, and the bending portion on the guide pin can be conveniently bent into a predetermined shape matching the forming grooves through the setting of the forming grooves. At the same time, the forming grooves can also limit the guide pin when the rivet block 1342 cooperates with the working surface 135 to squeeze the guide pin, so as to prevent the guide pin from sliding.

[0061] In one embodiment, see Figure 3The main body 131 is provided with a positioning jaw 138, which is used to clamp the guide needle when the pressing member 1332 approaches the guide needle and to release the guide needle when the pressing member 1332 moves away from the guide needle. The driving end of the positioning jaw 138 is connected to the pressing slider 1331 and / or the pressing member 1332 so that the positioning jaw 138 and the pressing member 1332 move synchronously. Specifically, the positioning jaw 138 refers to a component that can clamp an object. The positioning jaw 138 can be provided to clamp the guide needle when the pressing member 1332 approaches the guide needle to prevent the guide needle from moving when the guide needle and the electrode are punctured. The clamping effect of the positioning jaw 138 can also be used to position the placement position and angle of the guide needle in the horizontal direction.

[0062] In one embodiment, see Figure 6 The positioning clamp 138 includes a clamp fixing portion 1381, a clamp sliding block 1382, and two positioning clamp arms 1383. The clamp fixing portion 1381 is connected to the main body 131, the clamp sliding block 1382 is slidably connected to the clamp fixing portion 1381, the clamp fixing portion 1381 may be provided with a slide groove, and the clamp sliding block 1382 is slidably set in the slide groove, so as to realize the sliding connection between the clamp sliding block 1382 and the clamp fixing portion 1381, and the first ends of the two positioning clamp arms 1383 are both hinged to the clamp sliding block 1382, and the first ends of the two positioning clamp arms 1383 are both in a free state.

[0063] A partition support block 1384 is provided on the clamp fixing portion 1381, and the partition support block 1384 is located between the two positioning clamping arms 1383. The partition support block 1384 is used to push the two positioning clamping arms 1383 away from each other when the clamp sliding block 1382 and the positioning clamping arm 1383 slide in a direction away from the working surface 135, so that the two positioning clamping arms 1383 are stretched apart; at the same time, a clamp elastic member 1385 is provided between the two positioning clamping arms 1383. The clamp elastic member 1385 can pull the two positioning clamping arms 1383 closer to each other when the clamp sliding block 1382 and the positioning clamping arm 1383 slide in a direction close to the working surface 135, so that the second end of the positioning clamping arm 1383 clamps the guide needle. The clamp sliding block 1382 can also be connected to the clamping slider 1331 through the clamp connecting rod 1386, so that the clamp sliding block 1382 can move synchronously with the clamping slider 1331, so that the work of the positioning clamp 138 and the work of the pre-clamping component 133 are synchronized and linked, thereby making the coordination between the positioning clamp 138 and the pre-clamping component 133 more precise.

[0064] Based on the above-mentioned characteristic positioning jaw 138, please refer to Figure 5, the bottom width of the pressing member 1332 is adapted to the width of the connecting portion of the guide needle, so that the pressing member 1332 can avoid interfering with the positioning clamp 138 clamping the guide needle. In addition, the pressing member 1332 can include a main body 131 and a pressing portion detachably connected to the main body 131, wherein the bottom end of the pressing portion contacts the connecting portion of the guide needle, and the bottom width of the pressing portion is adapted to the width of the connecting portion of the guide needle. By detachably connecting the pressing portion to the main body 131, when the specification of the guide needle is changed, the pressing portion matching the width of the connecting portion of the guide needle can also be replaced.

[0065] In an alternative embodiment, see Figure 3 and Figure 4 , a detection module 17 is arranged on the main body 131, and the detection module 17 is used to detect whether the guide pin is firmly riveted. The detection module 17 includes an embossed stopper 171 and a detection connecting arm 172. The embossed stopper 171 is located above the working surface 135 and is spaced apart from the working surface 135. One end of the detection connecting arm 172 is connected to the main body 131 and the other end is connected to the embossed stopper 171. The embossed stopper 171 can be spaced apart from the working surface 135 by the support of the detection connecting arm 172. After the riveting is completed, the guide pin will move into the gap between the embossed stopper 171 and the working surface 135 driven by the pole piece, and at this time, the embossed stopper 171 will produce friction with the guide pin. When the guide pin is not firmly riveted, the guide pin will be separated from the pole piece under the push of the embossed stopper 171, thereby achieving the purpose of detecting whether the guide pin is firmly installed. The setting of the detection module 17 prevents the loosely installed guide pin from flowing into the next process, thereby improving the quality of the battery cell.

[0066] In one embodiment, see Figure 1 and Figure 2 The sorting mechanism 12 includes a vibrating plate 121, an inclined guide rail 122 and a guide needle separation structure 123. The inclined guide rail 122 is inclinedly arranged on the mounting frame 11. The feed port of the inclined guide rail 122 is connected to the discharge port of the vibrating plate 121, and the guide needle separation structure 123 is arranged at the discharge port of the inclined guide rail 122 for separating the guide needles at the discharge port.

[0067] Specifically, the vibration disk 121 refers to a component for sorting multiple objects. Its working principle is that there is a pulse electromagnet under the hopper of the vibration disk 121, which can make the hopper vibrate in the vertical direction, and the inclined spring sheet drives the hopper to perform torsional vibration around its vertical axis. The guide needle placed in the hopper rises along the spiral track due to this vibration. During the rising process, after a series of track screening or posture changes, the guide needle can automatically enter the assembly or processing position in a unified state according to the requirements of assembly or processing. The inclined guide rail 122 refers to a component that allows objects to be arranged in a straight line. The inclined guide rail 122 can be composed of two strip-shaped components arranged at intervals, and a gap is formed between the two strip-shaped components that only allows one guide needle to pass through, so that multiple guide needles can be arranged in sequence along the length direction of the gap. The height of the feed port of the inclined guide rail 122 is higher than the height at the discharge port, so that the guide needle can slide to the discharge port under its own gravity after entering the inclined guide rail 122. The guide needle separation structure 123 refers to a device that can separate the guide needles at the discharge port of the inclined guide rail 122 from other guide needles, so that the guide needles can flow to the next process one by one in an orderly manner.

[0068] During operation, the guide needles can be screened by the vibration plate 121, so that the guide needles are inserted into the inclined guide rail 122 in sequence with the connection part facing upward and the tip facing downward, and the guide needles will slide to the discharge port of the inclined guide rail 122 under the action of their own gravity. Finally, the guide needle separation structure 123 separates the guide needle at the front end from the other guide needles, so that the feeding of the guide needles can be more convenient and orderly.

[0069] In one embodiment, see Fig. 9 The guide needle separation structure 123 includes a sliding frame 1231, a separation needle 1232, a limit baffle 1233 and a limit baffle rod 1234. The sliding frame 1231 has the freedom to move in the horizontal direction relative to the inclined guide rail 122, and the sliding frame 1231 has a first column and a second column, the first column and the second column are respectively located on both sides of the inclined guide rail 122, the first end of the separation needle 1232 is set on the first column and the second end extends toward the second column, the first end of the limit baffle 1233 is set on the second column and the second end extends toward the first column. The partition needle 1232 and the limit baffle 1233 at least partially overlap each other in the horizontal direction, and the partition needle 1232 and the limit baffle 1233 are arranged at intervals along the length direction of the inclined guide rail 122. The partition needle 1232 is closer to the inclined guide rail 122 than the limit baffle 1233, and the interval between the partition needle 1232 and the limit baffle 1233 can only accommodate one guide needle. At the same time, the limit stopper 1234 is arranged between the first column and the second column to block the lower end of the guide needle.

[0070] When the guide needle at the front end of the inclined guide rail 122 slides to the guide needle separation structure 123, it will first contact the separation needle 1232 and stop moving under the obstruction of the separation needle 1232; then when the guide needle needs to be grabbed, the sliding frame 1231 will slide in the horizontal direction to move the separation needle 1232 away from the front of the guide needle. At this time, the guide needle at the front end will continue to slide until it abuts against the limit baffle 1233. At this time, the sliding frame 1231 slides in the opposite direction to insert the separation needle 1232 into the gap between the two guide needles. Since the interval between the separation needle 1232 and the limit baffle 1233 can only accommodate one guide needle, the separation needle 1232 will only separate the guide needle at the front end from the other guide needles. Finally, the sliding frame 1231 continues to move in the opposite direction until the limit baffle 1233 moves away from the front of the guide needle. At this time, the guide needle at the front end is only blocked by the limit baffle 1234 and has been separated from the other guide needles. After the guide needle is taken away by the transport mechanism 14, the sliding frame 1231 returns to the initial position to facilitate the next separation, thereby making the separation of the guide needle more convenient.

[0071] It should be noted that the limit stop rod 1234 only blocks the lower end of the guide needle. When the flip and swing group 143 in the transportation mechanism 14 takes the guide needle from the discharge port of the inclined guide rail 122, the guide needle can move along an arc to avoid the obstruction of the limit stop rod 1234, making it more convenient to take the guide needle.

[0072] In one embodiment, see Figure 7 The transport mechanism 14 includes a support rail 141, a pushing component 142, a flipping and swinging group 143 and a transport clamp 144. The support rail 141 is arranged on the mounting frame 11, and the support rail 141 is used to support the guide needle. The pushing component 142 is arranged on the mounting frame 11, and the pushing component 142 is used to push the guide needle to slide along the support rail 141. The flipping and swinging group 143 is arranged between the support rail 141 and the inclined rail 122. The flipping and swinging group 143 is used to transport the separated guide needles to the support rail 141 and adjust the direction of the guide needles. The transport clamp 144 is movably arranged on the mounting frame 11, and the transport clamp 144 is used to clamp the guide needle on the support rail 141 to the nail pressing mold group 13.

[0073] Specifically, the support rail 141 refers to a slide rail structure with a certain length, and the support rail 141 can support the guide needle and allow the guide needle to slide along the length direction of the support rail 141. The pushing component 142 refers to a component that can push the object to move, and its function is to push the guide needle to slide along the support rail 141 to achieve linear transportation of the guide needle. The flip swing group 143 refers to a component that can adjust the direction of the guide needle. The flip swing group 143 can adjust the guide needle from a vertical state to a horizontal state during the transportation of the guide needle. The transport clamp 144 refers to a component that can clamp the guide needle and place the guide needle at a specified position.

[0074] When transporting the guide needle, firstly, the guide needle is grabbed and transported to the support rail 141 through the flipping and swinging group 143, and during the transportation process, the flipping and swinging group 143 will adjust the guide needle from the vertical state to the horizontal state; after the guide needle is placed on the support rail 141, the pushing component 142 will push the guide needle toward the direction close to the nail pressing mold group 13, and the guide needle is clamped by the transport clamp 144 and placed on the workbench of the nail pressing mold group 13, so that the transportation of the guide needle from the inclined rail 122 to the nail pressing mold group 13 is more convenient.

[0075] In an alternative embodiment, see Figure 7 , an upper and lower positioning assembly 145 and a left and right positioning unit 146 are provided at the end close to the support rail 141. The upper and lower positioning assembly 145 can position the guide pin in the vertical direction, and the left and right positioning unit 146 can position the guide pin in the horizontal direction. The upper and lower positioning assembly 145 and the left and right positioning unit 146 can position the guide pin in four directions, namely, the upper, lower, left and right directions, so that the position of the guide pin is more accurate, thereby improving the quality of the battery cell.

[0076] In a specific embodiment, see Figure 7 The support rail 141 may include two support members of a certain length, and the two support members are arranged on the mounting frame 11 at intervals, and the guide needle can be supported by placing the guide needle on the top of the support member. The pushing assembly 142 may include a pushing sliding seat and a pushing member, and the pushing sliding seat is slidably arranged on the mounting frame 11, and can slide back and forth under the action of the driving mechanism 15, and the sliding direction of the pushing sliding seat is parallel to the length direction of the support member. The pushing member is connected to the pushing sliding seat and can move with the pushing sliding seat, and at least part of the pushing member extends between the two support members or extends to the side of the support member, and the top height of the pushing member is higher than the top surface height of the support member. When the guide needle is placed on the support member, the pushing member can be driven by the pushing sliding seat to push the guide needle. The transport clamp can also be arranged on the push sliding seat, and the interval between the working end of the transport clamp and the working end of the pushing member is equal to the sliding distance of the guide needle on the support rail 141.

[0077] The left and right positioning unit 146 may include two positioning baffles movably arranged on the mounting frame 11 and a positioning driving structure for driving the two positioning baffles to move toward or away from each other. The two positioning baffles are respectively located on both sides of the support rail 141. The two positioning baffles can simultaneously push the two ends of the guide needle so that the guide needle is located at the center of the two positioning baffles as a whole, thereby realizing the function of positioning the guide needle in the horizontal direction. The upper and lower positioning assembly 145 includes an upper and lower positioning member and an upper and lower positioning slider. The upper and lower positioning slider is slidably connected to the mounting frame 11. The upper and lower positioning member is connected to the upper and lower positioning slider and can slide with the upper and lower positioning slider. The working end of the upper and lower positioning member is located above the support rail 141. After the guide needle is pushed into place by the pushing assembly 142, the upper and lower positioning member can move downward under the action of the upper and lower positioning slider. Through the cooperation of the upper and lower positioning member 1 and the two supporting members in the support rail 141, the guide needle is positioned in the vertical direction, which can make the position of the guide needle more accurate and facilitate the clamping of the transport clamp.

[0078] In one embodiment, see Figure 8 The flipping and swinging group 143 includes a flipping base 1436, a flipping bracket 1431, a swinging rod 1432, a guide block 1433, a rotating suction part 1434 and a transmission structure 1435. The flipping base 1436 is arranged on the mounting frame 11, the flipping bracket 1431, the middle part of the swinging rod 1432 is hinged on the flipping bracket 1431, the guide block 1433 is arranged on the flipping base 1436, and a guide curved surface is arranged on the guide block 1433; one end of the swinging rod 1432 is movably abutted against the guide curved surface, and when the flipping bracket 1431 swings, the end of the swinging rod 1432 will also move along with the shape of the guide curved surface, and the whole swinging rod 1432 will rotate under the action of the guide curved surface; the rotating suction part 1434 is also rotatably arranged on the flipping bracket 1431 and is spaced apart from the swinging rod 1432, and the rotating suction part 1434 is used to suck the guide needle and drive the guide needle to rotate. The transmission structure 1435 is disposed between the swing rod 1432 and the rotation absorption portion 1434 , and transmits the movement of the swing rod 1432 to the rotation absorption portion 1434 to drive the rotation absorption portion 1434 to rotate.

[0079] Specifically, the flip base 1436 refers to a support component with a certain height, the flip bracket 1431 refers to a support component with a certain length, one end of the flip bracket 1431 is hinged on the flip base 1436, and the rotating suction part 1434 and the swing rod 1432 can be arranged on the end of the flip bracket 1431 away from the flip base 1436. The rotating suction part 1434 refers to a component with a certain magnetism, and the rotating suction part 1434 has the freedom to rotate around its own axis relative to the flip bracket 1431.

[0080] When the flip swing group 143 is working, the guide needle can be adsorbed on the rotating suction part 1434 after the swing of the flip bracket 1431 drives the rotating suction part 1434 to approach the guide needle. Then, the swing of the flip bracket 1431 drives the rotating suction part 1434 and the guide needle to move to the support rail 141, and the guide needle is placed on the support rail 141. After the push component 142 pushes the guide needle away, the flip bracket 1431 drives the rotating suction part 1434 to return to the discharge port of the inclined rail 122 for the next round of guide needle transportation. The middle area of ​​the flip bracket 1431 can be hinged with the swing link assembly 16, and the flip bracket 1431 is driven to swing through the swing link assembly 16. At the same time, during the rotation of the flip bracket 1431, the swing rod 1432 will rotate under the action of the guide surface on the guide block 1433, and the rotation of the swing rod 1432 will be transmitted to the rotating absorption part 1434 through the transmission structure 1435, so that the rotating absorption part 1434 will rotate, thereby driving the guide rod to rotate, thereby achieving the purpose of adjusting the direction of the guide rod.

[0081] Among them, see Figure 8 The transmission structure 1435 can be a fan-shaped swinging member rotatably arranged on the flip bracket 1431, wherein the fan-shaped swinging member is coaxially arranged with the swinging rod 1432, and the two are connected by a rotating shaft so that the fan-shaped swinging member can rotate with the swinging rod 1432. Meshing teeth are arranged on the arc surface of the fan-shaped swinging member, and a rotating gear is also installed outside the rotating suction part 1434. The meshing teeth on the fan-shaped swinging member and the rotating gear are meshed with each other, so that when the fan-shaped swinging member rotates, the rotating gear and the rotating suction part 1434 can be driven to rotate simultaneously.

[0082] In one embodiment, see Figure 1 or Figure 2 The stapling device 100 further includes a driving mechanism 15, which includes a rotating main shaft 151 and a power unit 152. The rotating main shaft 151 is rotatably arranged on the mounting frame 11, and the power unit 152 is used to drive the rotating main shaft 151 to rotate. A plurality of cam structures 153 are arranged at intervals on the rotating main shaft 151, and the cam structures 153 are respectively connected to the movable parts in the sorting mechanism 12, the nail pressing mold group 13 and the transportation mechanism 14 through the swing arm connecting rod group 16. Specifically, the rotating main shaft 151 refers to a shaft body with a certain length, and the power unit 152 refers to a component that can output a rotation torque, such as a motor, a hydraulic motor, etc. The rotating main shaft 151 can rotate under the drive of the power unit 152. The swing arm connecting rod group 16 refers to a motion transmission structure composed of a plurality of rod-shaped components hinged in sequence. The rod-shaped components can be hingedly arranged on the mounting frame 11, or the rod-shaped components can be slidably arranged on the mounting frame 11. It can be freely selected according to actual design needs, and will not be repeated here.

[0083] The cam structure 153 refers to a wheel structure that is arranged on the rotating main shaft 151 and can rotate with the rotating main shaft 151, and its function is to drive the components to reciprocate through the connecting rod. The driving mechanism 15 is composed of the rotating main shaft 151 and multiple cam structures 153, and rotates under the drive of the power unit 152. Each cam structure 153 on the rotating main shaft 151 can be connected to the components that need to move in the entire device through a set of swing arm connecting rod groups 16, and the movement of the moving parts connected to the cam structure 153 is driven by the rotation of the cam structure 153. The driving mechanism 15 can realize the movement of all moving parts in the entire nailing device 100, which can save more energy, and at the same time make the coordination of the entire nailing device 100 better, thereby improving work efficiency.

[0084] It should be noted that in the entire nailing device, the driving mechanism can drive the movement of the following movable parts, including but not limited to, by rotating the main shaft and the rotation of the cam structure, such as a sliding frame, a nail hole slider, a clamping slider, a riveting slider, a flip bracket, an upper and lower positioning assembly, a left and right positioning unit, and a pushing assembly, etc., wherein each movable part can be correspondingly provided with a cam structure.

[0085] Second, see Fig.10 , a battery making machine is provided, comprising a frame 600 and a gluing mechanism 800, and also comprising any of the above-mentioned stapling devices 100, wherein the gluing mechanism 800 is used to glue the pole pieces after the guide pins are stapled, and the gluing mechanism 800 and the stapling device 100 are arranged on the frame 600. It can be understood that the beneficial effects of the above-mentioned second aspect can be referred to the relevant description of the above-mentioned first aspect, and will not be repeated here.

[0086] In one embodiment, see Fig.10, the battery making machine also includes a feeding mechanism 200, a receiving mechanism 300, a guide wheel group 400, a guide needle CCD group 500 and a brush dust removal group 700. The frame 600 includes a base and a sheet metal panel, the sheet metal panel is vertically arranged on the base, the feeding mechanism 200, the receiving mechanism 300, the guide wheel group 400, the guide needle CCD group 500 and the brush dust removal group 700 are all arranged on the sheet metal panel, and the gluing mechanism 800 and the nailing device 100 can also be arranged on the sheet metal panel. Among them, the feeding mechanism 200 is used to provide the pole piece, and the receiving mechanism 300 is used to roll up the pole piece after the guide needle is installed. The guide wheel group 400 is used to guide the pole piece, and the guide wheel group 400 can be composed of a plurality of guide wheels, and the guide wheels are all rotatably arranged on the sheet metal panel. The guide wheel group 400 can also include a storage part and a tensioning part. The storage part can store a certain amount of pole pieces, and the tensioning part can be used to adjust the overall tension of the pole piece. The brush dust removal group 700 can clean the dust on the surface of the pole piece. The guide pin CCD (Charge-Coupled Device) group 500 is a visual inspection technology based on a charge-coupled device image sensor. CCD is a common image sensor widely used in industrial fields and machine vision systems. In the industrial and manufacturing fields, the visual inspection system using CCD sensors is called CCD visual inspection or machine vision inspection. The guide pin CCD group 500 can inspect the riveting points of the guide pin after riveting.

[0087] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A stapling device, characterized in that: include: Mounting frame; A sorting mechanism, disposed on the mounting frame, for sorting the guide needles and separating the guide needles; A nail pressing die set, arranged on the mounting frame, for riveting the guide pin to the pole piece; The transport mechanism is arranged on the mounting frame and is used to transport the guide pins at the sorting mechanism to the nail pressing mold set in sequence.

2. The binding device according to claim 1, characterized in that: The nail pressing mold group includes a main body, a nail hole needle assembly, a pre-pressing assembly and a rivet assembly. The main body is arranged on the mounting frame, and the main body has a working surface for supporting the pole piece; the pre-pressing assembly is movably connected to the main body, located above the working surface, and is used to press the guide needle so that the guide needle abuts against the side of the pole piece; the nail hole needle assembly is movably connected to the main body, and is used to pierce the guide needle and the pole piece; the rivet assembly is movably connected to the main body, and is used to cooperate with the working surface to squeeze the pierced guide needle and the pole piece so that the guide needle is riveted to the pole piece.

3. The stapling device according to claim 2, characterized in that: The nail hole needle assembly includes a nail hole slider, a nail needle mounting seat and a puncture needle. The nail hole slider is slidably set on the main body along a first direction. The nail needle mounting seat is connected to the nail hole slider. A plurality of puncture needles are installed on the nail needle mounting seat at intervals. The puncture needle is used to puncture the pole piece and the guide needle. The first direction is set at an angle to the working surface.

4. The stapling device according to claim 3, characterized in that: The pre-pressing assembly includes a pressing slider and a pressing piece. The pressing slider is slidably disposed on the main body along the first direction. The pressing piece is connected to the pressing slider and can move with the pressing slider. The pressing piece is located above the working surface and is used to contact the guide needle.

5. The stapling device according to claim 4, characterized in that: The working surface is provided with an avoidance structure, which is used to avoid the part of the puncture needle and the guide needle extending to the back side of the pole piece. The main body is also movably provided with an ejector, which is located below the working surface and is used to eject the part of the guide needle extending to the back side of the pole piece out of the avoidance structure.

6. The binding device according to claim 5, characterized in that: A positioning clamp is provided on the main body, and the positioning clamp is used to clamp the guide needle when the clamping member approaches the guide needle and release the guide needle when the clamping member moves away from the guide needle. The driving end of the positioning clamp is connected to the clamping slider and / or the clamping member so that the positioning clamp moves synchronously with the clamping member.

7. The stapling device according to any one of claims 1 to 6, characterized in that: The sorting mechanism includes a vibrating plate, an inclined guide rail and a guide needle separation structure. The vibrating plate and the inclined guide rail are arranged on the mounting frame. The feed port of the inclined guide rail is connected to the discharge port of the vibrating plate. The guide needle separation structure is arranged at the discharge port of the inclined guide rail and is used to separate the guide needles at the discharge port.

8. The stapling device according to claim 7, characterized in that: The transport mechanism includes a support rail, a pushing assembly, a flipping and swinging group and a transport clamp, wherein the support rail is arranged on the mounting frame, the support rail is used to support the guide needle, the pushing assembly is arranged on the mounting frame, the pushing assembly is used to push the guide needle to slide along the support rail, the flipping and swinging group is arranged between the support rail and the inclined rail, the flipping and swinging group is used to transport the separated guide needles to the support rail and adjust the direction of the guide needles, and the transport clamp is movably arranged on the mounting frame, and the transport clamp is used to clamp the guide needles on the support rail to the nail pressing mold group.

9. The stapling device according to any one of claims 1 to 6, characterized in that: The stapling device also includes a driving mechanism, which includes a rotating spindle and a power unit. The rotating spindle is rotatably arranged on the mounting frame, and the power unit is used to drive the rotating spindle to rotate. A plurality of cam structures are arranged on the rotating spindle at intervals, and the cam structures are respectively connected to the sorting mechanism, the nail pressing mold group and the movable parts in the transportation mechanism through a swing arm connecting rod group.

10. A battery slice making machine, characterized in that: The invention comprises a stapling device as claimed in any one of claims 1 to 9.

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