Cylindrical battery sealing nail discharging device and sealing nail pressing mechanism

Abstract

The utility model provides a cylindrical battery sealing nail discharging device and a sealing nail pressing mechanism, and relates to the technical field of battery welding. The cylindrical battery sealing nail discharging device comprises a first telescopic part, a material taking part and a second telescopic part, a mounting block is arranged at the telescopic end of the first telescopic part, one end of the material taking part penetrates through the mounting block and is fixedly connected with the mounting block, an abutting block is arranged at the telescopic end of the second telescopic part, and the abutting block is fixedly connected with the material taking part. The end, away from the mounting block, of the material taking piece penetrates through the abutting block. The sealing nail can accurately fall into a battery liquid injection opening, subsequent welding positioning is facilitated, and the welding yield is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of battery welding technology, and in particular to a cylindrical battery sealing nail blanking device and a sealing nail pressing mechanism. Background Art

[0002] Sealing pin welding is the last welding process before the cylindrical battery is finished. Sealing pin welding is an important process to isolate the inside of the battery from the external environment. After the battery cell is completed, it will be encapsulated in a steel shell. A liquid injection hole will be left above the negative electrode of the shell for injecting electrolyte, and sealing pin welding is the sealing welding process to achieve the battery liquid injection port.

[0003] The existing sealing nail feeding method is to use a vacuum suction cup to suck, but when the vacuum is broken, the sealing nail is easily blown away or the sealing nail sticks to the vacuum suction cup, resulting in the sealing nail being unable to accurately fall into the battery filling port. To this end, a cylindrical battery sealing nail feeding device and a sealing nail pressing mechanism are now provided. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a cylindrical battery sealing nail feeding device and a sealing nail pressing mechanism, aiming to solve the technical problem in the prior art that the sealing nail cannot accurately fall into the battery filling port.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a cylindrical battery sealing nail blanking device, comprising:

[0007] A first telescopic member, wherein a mounting block is provided at a telescopic end of the first telescopic member;

[0008] A material taking piece, one end of which passes through the mounting block and is fixedly connected to the mounting block;

[0009] A second telescopic member, wherein a tightening block is arranged at the telescopic end of the second telescopic member, and the tightening block is passed through one end of the material taking member away from the mounting block.

[0010] In one of the embodiments of the first aspect, the cylindrical battery sealing nail blanking device further includes a fixing member, and the first telescopic member and the second telescopic member are both mounted on the fixing member.

[0011] In one embodiment of the first aspect, the picking component includes a vacuum suction cup, and the picking component is connected to an external vacuum system.

[0012] In a second aspect, the present application also provides a sealing nail pressing mechanism, including:

[0013] The cylindrical battery sealing nail feeding device described in any of the above embodiments;

[0014] A feeding device and a four-axis robot, wherein the feeding device has a conveying end, and the feeding device and the four-axis robot are arranged adjacent to each other, and the cylindrical battery sealing nail unloading device is installed at the working end of the four-axis robot;

[0015] A clamping device is arranged on a side of the feeding device where a conveying end is provided.

[0016] In one embodiment of the second aspect, the pressing device includes a third telescopic member and a pressing member, and one end of the pressing member is connected to the third telescopic member.

[0017] In one embodiment of the second aspect, the third telescopic member is a rotary clamping cylinder.

[0018] In one of the embodiments of the second aspect, the clamping member includes a connecting block and a clamping block, the connecting block is vertically arranged to the third telescopic member, and one end of the connecting block is connected to the telescopic end of the third telescopic member, and the clamping block is arranged at an end of the connecting block away from the third telescopic member.

[0019] In one of the embodiments of the second aspect, a linear guide rail is provided at one end of the connecting block away from the third telescopic member, and the pressing block is installed on a side of the linear guide rail away from the connecting block.

[0020] In one of the embodiments of the second aspect, the feeding device includes a feeding platform and a vibration plate, and the vibration plate is fixed to the feeding platform.

[0021] In one of the embodiments of the second aspect, the sealing nail pressing mechanism further includes a positioning device, the positioning device includes a CCD industrial camera, and the CCD industrial camera is located between the feeding device and the pressing device.

[0022] Compared with the prior art, the beneficial effect of the present application is as follows: the present application provides a cylindrical battery sealing nail feeding device and a sealing nail pressing mechanism, which can be used for welding and positioning of battery sealing nails and liquid injection ports. The cylindrical battery sealing nail feeding device includes a first telescopic member, a material taking member and a second telescopic member, wherein the telescopic end of the first telescopic member is provided with a mounting block, one end of the material taking member is penetrated with the mounting block and fixedly connected with the mounting block, the telescopic end of the second telescopic member is provided with a tightening block, and the end of the material taking member away from the mounting block is penetrated with the tightening block. In this way, after the material taking member absorbs the sealing nail, the first telescopic member drives the material taking member to descend, so that the sealing nail is placed in the battery liquid injection port, and then the second telescopic member drives the tightening block to descend, the tightening block presses against the surrounding side of the sealing nail, the material taking member releases the sealing nail, the first telescopic member retracts to drive the material taking member to reset, at this time the sealing nail is pressed against the battery liquid injection port by the tightening block, and finally, the second telescopic member retracts to drive the tightening block to reset. The present application can make the sealing nail fall accurately into the battery liquid injection port, which is convenient for subsequent welding positioning and ensures the welding yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a cylindrical battery sealing nail feeding device in some embodiments of the present application is shown;

[0025] Figure 2 A schematic diagram of the structure of a sealing pin pressing mechanism in some embodiments of the present application is shown;

[0026] Figure 3 A schematic diagram of the structure of a clamping device in some embodiments of the present application is shown.

[0027] Description of main component symbols:

[0028] 1000-sealing nail pressing mechanism;

[0029] 100- cylindrical battery sealing nail feeding device; 110- first telescopic member; 120- material taking member; 130- second telescopic member; 140- mounting block; 150- pressing block; 160- fixing member; 170- guiding block;

[0030] 200-feeding device; 210-feeding table; 220-vibration plate;

[0031] 300-four-axis robot;

[0032] 400-pressing device; 410-third telescopic member; 420-pressing member; 421-connecting block; 422-pressing block; 423-linear guide rail;

[0033] 500-positioning device; 510-CCD industrial camera;

[0034] 2000-Cylindrical battery. DETAILED DESCRIPTION

[0035] The embodiments of the present application 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 only used to explain the present application, and cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 this application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The inventor of the present application found that in the related art, battery sealing nail welding is mostly done manually with a jig. Whether it is contact friction welding or handheld laser welding, it is harmful to the human body, and has high labor costs, low efficiency, and slow speed. When the sealing nail is placed on the battery filling port by vacuum suction, it is easy to blow the sealing nail away or stick to the vacuum suction cup when the vacuum is broken, which cannot effectively improve the yield during welding. In addition, since the thickness of the sealing nail is mostly around 0.1mm, when the sealing nail is pressed against the filling port surface, excessive pressure will cause the sealing nail to deform and cannot be better connected to the filling hole surface, or too light pressure will cause the sealing nail to be poorly connected to the filling hole surface, resulting in gaps during laser welding and resulting in cold welding.

[0041] The embodiment of the present application provides a cylindrical battery sealing nail feeding device 100 and a sealing nail pressing mechanism 1000, which can be used for material feeding and positioning, and specifically for welding and positioning the battery sealing nail and the liquid injection port. The cylindrical battery sealing nail feeding device 100 and the sealing nail pressing mechanism 1000 provided in the present application can make the sealing nail fall accurately into the battery liquid injection port, which is convenient for subsequent welding positioning and ensures welding yield.

[0042] like Figure 1 As shown, the embodiment of the present application provides a cylindrical battery sealing nail blanking device 100, which includes a first telescopic member 110, a material taking member 120 and a second telescopic member 130. Among them, the telescopic end of the first telescopic member 110 is provided with a mounting block 140, one end of the material taking member 120 is penetrated with the mounting block 140 and is fixedly connected to the mounting block 140, and the telescopic end of the second telescopic member 130 is provided with a tightening block 150, and the end of the material taking member 120 away from the mounting block 140 is penetrated with the tightening block 150.

[0043] The first telescopic member 110 and the second telescopic member 130 can be devices with telescopic functions such as pneumatic cylinders, hydraulic cylinders or linear motors. In this embodiment, the first telescopic member 110 and the second telescopic member 130 are both slide cylinders.

[0044] The second telescopic member 130 is disposed on one side of the first telescopic member 110, the mounting block 140 is disposed perpendicularly to the first telescopic member 110, and one end of the mounting block 140 is fixed to the telescopic end of the first telescopic member 110, so that the mounting block 140 can be raised and lowered under the drive of the first telescopic member 110. The pressing block 150 is disposed perpendicularly to the second telescopic member 130, and one end of the pressing block 150 is fixed to the telescopic end of the second telescopic member 130, so that the pressing block 150 can be raised and lowered under the drive of the second telescopic member 130. Both the mounting block 140 and the pressing block 150 are provided with through holes, and the two through holes are coaxially arranged, so that the material picking member 120 is simultaneously penetrated by the mounting block 140 and the pressing block 150. The picking piece 120 passes through the mounting block 140 and is fixed to the mounting block 140 by means of limiting pieces such as bushings. The through hole diameter of the pressing block 150 is slightly larger than the outer diameter of the picking piece 120 so that the picking piece 120 can freely pass through the through hole of the pressing block 150.

[0045] In one embodiment, a compression spring is provided at the portion where the material picking member 120 is installed in the through hole of the installation hole to provide buffering during the lifting and lowering movement of the material picking member 120 .

[0046] In summary, the working process of the cylindrical battery sealing nail feeding device 100 is as follows: after the feeding piece 120 absorbs the sealing nail, the first telescopic piece 110 drives the feeding piece 120 to descend, so that the sealing nail is inserted into the battery filling port, and then, the second telescopic piece 130 drives the tightening block 150 to descend, and the tightening block 150 presses against the surrounding side of the sealing nail, the feeding piece 120 releases the sealing nail, and the first telescopic piece 110 retracts to drive the feeding piece 120 to reset. At this time, the sealing nail is pressed against the battery filling port by the tightening block 150, and finally, the second telescopic piece 130 retracts to drive the tightening block 150 to reset, and the sealing nail falls accurately into the battery filling port, which is convenient for subsequent welding positioning and ensures the welding yield.

[0047] In some embodiments, the cylindrical battery sealing nail blanking device 100 further includes a fixing member 160 , and the first telescopic member 110 and the second telescopic member 130 are both mounted on the fixing member 160 .

[0048] The fixing member 160 may be a metal welding workpiece, and the first telescopic member 110 and the second telescopic member 130 are both mounted on the same side of the fixing member 160. The fixing member 160 is provided with mounting holes to facilitate mounting the cylindrical battery sealing nail blanking device 100 on other workpieces.

[0049] In some embodiments, the cylindrical battery sealing nail unloading device 100 further includes a guide block 170, which is located between the mounting block 140 and the abutting block 150, and one end of which is fixed to the fixing member 160. The guide member is provided with a through hole, and is aligned with the through holes of the mounting block 140 and the abutting block 150, so as to provide a guiding function during the lifting process of the material picking member 120 to prevent the material picking member 120 from being offset.

[0050] In some embodiments, the picking component 120 includes a vacuum suction cup, and the picking component 120 is connected to an external vacuum system.

[0051] The vacuum suction cup is connected to the external vacuum system through pipe fittings and air pipe joints. The external vacuum system includes a vacuum generator. The vacuum generator has a solenoid valve that can absorb vacuum and break vacuum. The sealing nail is sucked by vacuum and placed at the battery filling port. The second telescopic member 130 drives the pressing block 150 to press down and tighten the sealing nail to prevent blowing when breaking vacuum, which may cause the sealing nail to shift and cause poor welding. Then, the vacuum solenoid valve breaks vacuum and blows air, and the first telescopic member 110 retracts to drive the vacuum suction cup to detach from the sealing nail to complete the nailing action.

[0052] like Figure 2 As shown, the embodiment of the present application further provides a sealing nail pressing mechanism 1000, which includes a cylindrical battery sealing nail unloading device 100, a loading device 200, a four-axis robot 300 and a pressing device 400 in any of the above embodiments. Among them, the loading device 200 has a conveying end, and the loading device 200 and the four-axis robot 300 are arranged adjacent to each other, the working end of the four-axis robot 300 is equipped with a cylindrical battery sealing nail unloading device 100, and the pressing device 400 is arranged on the side of the loading device 200 with the conveying end.

[0053] The feeding device 200 can sequentially convey the sealing nails to the bottom of the cylindrical battery sealing nail unloading device 100. Driven by the four-axis robot 300, the feeding device 200 accurately absorbs a single sealing nail and places it at the injection port of the cylindrical battery 2000. After the feeding device 200 places the sealing nail, the pressing device 400 presses the sealing nail to seal the sealing nail with the injection port of the battery, and then the welding process is carried out to ensure the welding yield.

[0054] In this embodiment, the four-axis robot 300 of the present application has four degrees of freedom to arbitrarily adjust the position of the cylindrical battery sealing nail feeding device 100.

[0055] This embodiment has the cylindrical battery sealing nail blanking device 100 in any of the above embodiments, and therefore has all the beneficial effects of the cylindrical battery sealing nail blanking device 100 in any of the above embodiments, which will not be described in detail here.

[0056] In some embodiments, the pressing device 400 includes a third telescopic member 410 and a pressing member 420 , and one end of the pressing member 420 is connected to the third telescopic member 410 .

[0057] The third telescopic member 410 can be a device with telescopic function such as a pneumatic cylinder, a hydraulic cylinder or a linear motor. Driven by the third telescopic member 410, the pressing member 420 can move up and down, thereby squeezing the sealing nail to seal the sealing nail with the battery filling port.

[0058] In some embodiments, the third telescopic member 410 is a rotary clamping cylinder.

[0059] The rotary clamping cylinder means that the piston rod can be extended and retracted while rotating 90 degrees, thereby driving the clamping member 420 to clamp the sealing pin, and is used to clamp small workpieces. Compared with direct clamping, the space above the workpiece can be effectively utilized before clamping.

[0060] When the sealing nail is not placed at the liquid injection port of the cylindrical battery 2000, the end of the pressing member 420 away from the third telescopic member 410 faces the side away from the cylindrical battery sealing nail feeding device 100, and a large activity space has been reserved to facilitate the passage of materials. After the sealing nail is placed at the liquid injection port of the cylindrical battery 2000, the rotary clamping cylinder is started, driving the pressing member 420 to rotate 90° and press the sealing nail against the liquid injection port.

[0061] like Figure 3 As shown, in some embodiments, the pressing member 420 includes a connecting block 421 and a pressing block 422, the connecting block 421 is vertically arranged with the third telescopic member 410, and one end of the connecting block 421 is connected to the telescopic end of the third telescopic member 410, and the pressing block 422 is arranged at one end of the connecting block 421 away from the third telescopic member 410.

[0062] The pressing block 422 is vertically arranged at the end of the connecting block 421, and presses the sealing nail downward under the drive of the third telescopic member 410. The end of the pressing block 422 can be set as a cross pressure head or a straight pressure head, which can be selected according to the nail cap structure of the sealing nail.

[0063] In some embodiments, a linear guide rail 423 is provided at one end of the connecting block 421 away from the third telescopic member 410 , and the pressing block 422 is installed on a side of the linear guide rail 423 away from the connecting block 421 .

[0064] By setting the linear guide rail 423, a guide can be provided during the lifting and lowering process of the pressing block 422, thereby ensuring that the pressing block 422 does not deviate during the movement process.

[0065] Combination Figure 3 As shown, in addition, a lap block can be set at one end of the connecting block 421 away from the third telescopic member 410, and the end of the clamping block 422 can also pass the lap block through the pin shaft, and a compression spring is set at the connection position between the pin shaft and the lap block to provide elastic buffering during the movement of the clamping block 422.

[0066] like Figure 2As shown, in some embodiments, the loading device 200 includes a loading platform 210 and a vibration plate 220 , and the vibration plate 220 is fixed to the loading platform 210 .

[0067] The loading platform 210 can be welded by metal parts and installed on the ground through the bottom support feet of the loading platform 210. The vibration plate 220 can arrange the sealing nails in an orderly manner to cooperate with the cylindrical battery sealing nail unloading device 100 to place a single sealing nail at the corresponding cylindrical battery 2000 injection port.

[0068] like Figure 2 As shown, in some embodiments, the sealing nail pressing mechanism 1000 further includes a positioning device 500 , and the positioning device 500 includes a CCD industrial camera 510 . The CCD industrial camera 510 is located between the feeding device 200 and the pressing device 400 .

[0069] CCD (Charge Coupled Device) industrial camera 510 has the advantages of high sensitivity, strong light resistance, small distortion, small size, long life and vibration resistance.

[0070] The CCD industrial camera 510 maintains electrical signal connection with the four-axis robot 300 and the cylindrical battery sealing nail feeding device 100, so that the four-axis robot 300 can take pictures of the position of the sealing nail through the CCD industrial camera 510, locate the sealing nail through vision, and then move it to the position of the battery filling hole. The first telescopic part 110 is pressed down to accurately place the sealing nail into the filling hole, the solenoid valve controls the blowing to break the vacuum, and the first telescopic part 110 retracts to complete the sealing nail action.

[0071] In summary, the cylindrical battery sealing nail feeding device 100 and the sealing nail pressing mechanism 1000 provided in the present application can make the sealing nail fall accurately into the battery filling port, facilitate subsequent welding positioning, ensure welding yield, and increase the welding time of a single battery, thereby improving production efficiency.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A cylindrical battery sealing nail feeding device, characterized in that: include: A first telescopic member, wherein a mounting block is provided at a telescopic end of the first telescopic member; A material taking piece, one end of which passes through the mounting block and is fixedly connected to the mounting block; A second telescopic member, wherein a tightening block is arranged at the telescopic end of the second telescopic member, and the tightening block is passed through one end of the material taking member away from the mounting block.

2. The cylindrical battery sealing nail blanking device according to claim 1, characterized in that: The cylindrical battery sealing nail feeding device also includes a fixing member, and the first telescopic member and the second telescopic member are both installed on the fixing member.

3. The cylindrical battery sealing nail blanking device according to claim 1, characterized in that: The material picking component includes a vacuum suction cup, and the material picking component is connected to an external vacuum system.

4. A sealing nail pressing mechanism, characterized in that: include: The cylindrical battery sealing nail feeding device according to any one of claims 1 to 3; A feeding device and a four-axis robot, wherein the feeding device has a conveying end, and the feeding device and the four-axis robot are arranged adjacent to each other, and the cylindrical battery sealing nail unloading device is installed at the working end of the four-axis robot; A clamping device is arranged on a side of the feeding device where a conveying end is provided.

5. The sealing nail pressing mechanism according to claim 4, characterized in that: The pressing device comprises a third telescopic member and a pressing member, and one end of the pressing member is connected to the third telescopic member.

6. The sealing nail pressing mechanism according to claim 5, characterized in that: The third telescopic member is a rotary clamping cylinder.

7. The sealing nail pressing mechanism according to claim 5, characterized in that: The pressing member includes a connecting block and a pressing block. The connecting block is vertically arranged with the third telescopic member, and one end of the connecting block is connected with the telescopic end of the third telescopic member. The pressing block is arranged at one end of the connecting block away from the third telescopic member.

8. The sealing nail pressing mechanism according to claim 7, characterized in that: A linear guide rail is provided at one end of the connecting block away from the third telescopic member, and the pressing block is installed on a side of the linear guide rail away from the connecting block.

9. The sealing nail pressing mechanism according to claim 4, characterized in that: The feeding device comprises a feeding platform and a vibration plate, and the vibration plate is fixed to the feeding platform.

10. The sealing nail pressing mechanism according to any one of claims 4 to 9, characterized in that: The sealing nail pressing mechanism also includes a positioning device, and the positioning device includes a CCD industrial camera. The CCD industrial camera is located between the feeding device and the pressing device.

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